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2023-01-01Update copyright year range in header of all files managed by GDBJoel Brobecker1-1/+1
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
2022-12-31[gdb/cli] Add maintenance ignore-probesTom de Vries1-0/+3
There's a command "disable probes", but SystemTap probes, for instance libc:longjmp cannot be disabled: ... $ gdb -q -batch a.out -ex start -ex "disable probes libc ^longjmp$" ... Probe libc:longjmp cannot be disabled. Probe libc:longjmp cannot be disabled. Probe libc:longjmp cannot be disabled. ... Add a command "maintenance ignore-probes" that ignores probes during get_probes, such that we can easily pretend to use a libc without the libc:longjmp probe: ... (gdb) maint ignore-probes -verbose libc ^longjmp$ ignore-probes filter has been set to: PROVIDER: 'libc' PROBE_NAME: '^longjmp$' OBJNAME: '' (gdb) start ^M ... Ignoring SystemTap probe libc longjmp in /lib64/libc.so.6.^M Ignoring SystemTap probe libc longjmp in /lib64/libc.so.6.^M Ignoring SystemTap probe libc longjmp in /lib64/libc.so.6.^M ... The "Ignoring ..." messages can be suppressed by not using -verbose. Note that as with "disable probes", running simply "maint ignore-probes" ignores all probes. The ignore-probes filter can be reset by using: ... (gdb) maint ignore-probes -reset ignore-probes filter has been reset ... For now, the command is only supported for SystemTap probes. PR cli/27159 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=27159
2022-11-14Remove dump_prefix_expressionTom Tromey1-1/+1
Since the expression rewrite, dump_prefix_expression has been misnamed. This patch cleans this up by removing the function, turning it into a method on struct expression.
2022-10-19internal_error: remove need to pass __FILE__/__LINE__Pedro Alves1-6/+3
Currently, every internal_error call must be passed __FILE__/__LINE__ explicitly, like: internal_error (__FILE__, __LINE__, "foo %d", var); The need to pass in explicit __FILE__/__LINE__ is there probably because the function predates widespread and portable variadic macros availability. We can use variadic macros nowadays, and in fact, we already use them in several places, including the related gdb_assert_not_reached. So this patch renames the internal_error function to something else, and then reimplements internal_error as a variadic macro that expands __FILE__/__LINE__ itself. The result is that we now should call internal_error like so: internal_error ("foo %d", var); Likewise for internal_warning. The patch adjusts all calls sites. 99% of the adjustments were done with a perl/sed script. The non-mechanical changes are in gdbsupport/errors.h, gdbsupport/gdb_assert.h, and gdb/gdbarch.py. Approved-By: Simon Marchi <simon.marchi@efficios.com> Change-Id: Ia6f372c11550ca876829e8fd85048f4502bdcf06
2022-10-10Change GDB to use frame_info_ptrTom Tromey1-2/+2
This changes GDB to use frame_info_ptr instead of frame_info * The substitution was done with multiple sequential `sed` commands: sed 's/^struct frame_info;/class frame_info_ptr;/' sed 's/struct frame_info \*/frame_info_ptr /g' - which left some issues in a few files, that were manually fixed. sed 's/\<frame_info \*/frame_info_ptr /g' sed 's/frame_info_ptr $/frame_info_ptr/g' - used to remove whitespace problems. The changed files were then manually checked and some 'sed' changes undone, some constructors and some gets were added, according to what made sense, and what Tromey originally did Co-Authored-By: Bruno Larsen <blarsen@redhat.com> Approved-by: Tom Tomey <tom@tromey.com>
2022-09-21gdb: remove TYPE_LENGTHSimon Marchi1-4/+4
Remove the macro, replace all uses with calls to type::length. Change-Id: Ib9bdc954576860b21190886534c99103d6a47afb
2022-08-03Use gdb_bfd_ref_ptr in objfileTom Tromey1-2/+2
This changes struct objfile to use a gdb_bfd_ref_ptr. In addition to removing some manual memory management, this fixes a use-after-free that was introduced by the registry rewrite series. The issue there was that, in some cases, registry shutdown could refer to memory that had already been freed. This help fix the bug by delaying the destruction of the BFD reference (and thus the per-bfd object) until after the registry has been shut down.
2022-03-29Unify gdb printf functionsTom Tromey1-2/+2
Now that filtered and unfiltered output can be treated identically, we can unify the printf family of functions. This is done under the name "gdb_printf". Most of this patch was written by script.
2022-03-21gdb/x86: handle stap probe arguments in xmm registersAndrew Burgess1-0/+15
On x86 machines with xmm register, and with recent versions of systemtap (and gcc?), it can occur that stap probe arguments will be placed into xmm registers. I notice this happening on a current Fedora Rawhide install with the following package versions installed: $ rpm -q glibc systemtap gcc glibc-2.35.9000-10.fc37.x86_64 systemtap-4.7~pre16468670g9f253544-1.fc37.x86_64 gcc-12.0.1-0.12.fc37.x86_64 If I check the probe data in libc, I see this: $ readelf -n /lib64/libc.so.6 ... stapsdt 0x0000004d NT_STAPSDT (SystemTap probe descriptors) Provider: libc Name: pthread_start Location: 0x0000000000090ac3, Base: 0x00000000001c65c4, Semaphore: 0x0000000000000000 Arguments: 8@%xmm1 8@1600(%rbx) 8@1608(%rbx) stapsdt 0x00000050 NT_STAPSDT (SystemTap probe descriptors) Provider: libc Name: pthread_create Location: 0x00000000000912f1, Base: 0x00000000001c65c4, Semaphore: 0x0000000000000000 Arguments: 8@%xmm1 8@%r13 8@8(%rsp) 8@16(%rsp) ... Notice that for both of these probes, the first argument is a uint64_t stored in the xmm1 register. Unfortunately, if I try to use this probe within GDB, then I can't view the first argument. Here's an example session: $ gdb $(which gdb) (gdb) start ... (gdb) info probes stap libc pthread_create ... (gdb) break *0x00007ffff729e2f1 # Use address of probe. (gdb) continue ... (gdb) p $_probe_arg0 Invalid cast. What's going wrong? If I re-run my session, but this time use 'set debug stap-expression 1', this is what I see: (gdb) set debug stap-expression 1 (gdb) p $_probe_arg0 Operation: UNOP_CAST Operation: OP_REGISTER String: xmm1 Type: uint64_t Operation: UNOP_CAST Operation: OP_REGISTER String: r13 Type: uint64_t Operation: UNOP_CAST Operation: UNOP_IND Operation: UNOP_CAST Operation: BINOP_ADD Operation: OP_LONG Type: long Constant: 0x0000000000000008 Operation: OP_REGISTER String: rsp Type: uint64_t * Type: uint64_t Operation: UNOP_CAST Operation: UNOP_IND Operation: UNOP_CAST Operation: BINOP_ADD Operation: OP_LONG Type: long Constant: 0x0000000000000010 Operation: OP_REGISTER String: rsp Type: uint64_t * Type: uint64_t Invalid cast. (gdb) The important bit is this: Operation: UNOP_CAST Operation: OP_REGISTER String: xmm1 Type: uint64_t Which is where we cast the xmm1 register to uint64_t. And the final piece of the puzzle is: (gdb) ptype $xmm1 type = union vec128 { v8bf16 v8_bfloat16; v4f v4_float; v2d v2_double; v16i8 v16_int8; v8i16 v8_int16; v4i32 v4_int32; v2i64 v2_int64; uint128_t uint128; } So, we are attempting to cast a union type to a scalar type, which is not supporting in C/C++, and as a consequence GDB's expression evaluator throws an error when we attempt to do this. The first approach I considered for solving this problem was to try and make use of gdbarch_stap_adjust_register. We already have a gdbarch method (gdbarch_stap_adjust_register) that allows us to tweak the name of the register that we access. Currently only x86 architectures use this to transform things like ax to eax in some cases. I wondered, what if we change gdbarch_stap_adjust_register to do more than just change the register names? What if this method instead became gdbarch_stap_read_register. This new method would return a operation_up, and would take the register name, and the type we are trying to read from the register, and return the operation that actually reads the register. The default implementation of this method would just use user_reg_map_name_to_regnum, and then create a register_operation, like we already do in stap_parse_register_operand. But, for x86 architectures this method would fist possibly adjust the register name, then do the default action to read the register. Finally, for x86 this method would spot when we were accessing an xmm register, and, based on the type being pulled from the register, would extract the correct field from the union. The benefit of this approach is that it would work with the expression types that GDB currently supports. The draw back would be that this approach would not be very generic. We'd need code to handle each sub-field size with an xmm register. If other architectures started using vector registers for probe arguments, those architectures would have to create their own gdbarch_stap_read_register method. And finally, the type of the xmm registers comes from the type defined in the target description, there's a risk that GDB might end up hard-coding the names of type sub-fields, then if a target uses a different target description, with different field names for xmm registers, the stap probes would stop working. And so, based on all the above draw backs, I rejected this first approach. My second plan involves adding a new expression type to GDB called unop_extract_operation. This new expression takes a value and a type, during evaluation the value contents are fetched, and then a new value is extracted from the value contents (based on type). This is similar to the following C expression: result_value = *((output_type *) &input_value); Obviously we can't actually build this expression in this case, as the input_value is in a register, but hopefully the above makes it clearer what I'm trying to do. The benefit of the new expression approach is that this code can be shared across all architectures, and it doesn't care about sub-field names within the union type. The draw-backs that I see are potential future problems if arguments are not stored within the least significant bytes of the register. However if/when that becomes an issue we can adapt the gdbarch_stap_read_register approach to allow architectures to control how a value is extracted. For testing, I've extended the existing gdb.base/stap-probe.exp test to include a function that tries to force an argument into an xmm register. Obviously, that will only work on a x86 target, so I've guarded the new function with an appropriate GCC define. In the exp script we use readelf to check if the probe exists, and is using the xmm register. If the probe doesn't exist then the associated tests are skipped. If the probe exists, put isn't using the xmm register (which will depend on systemtap/gcc versions), then again, the tests are skipped. Otherwise, we can run the test. I think the cost of running readelf is pretty low, so I don't feel too bad making all the non-xmm targets running this step. I found that on a Fedora 35 install, with these packages installed, I was able to run this test and have the probe argument be placed in an xmm register: $ rpm -q systemtap gcc glibc systemtap-4.6-4.fc35.x86_64 gcc-11.2.1-9.fc35.x86_64 glibc-2.34-7.fc35.x86_64 Finally, as this patch adds a new operation type, then I need to consider how to generate an agent expression for the new operation type. I have kicked the can down the road a bit on this. In the function stap_parse_register_operand, I only create a unop_extract_operation in the case where the register type is non-scalar, this means that in most cases I don't need to worry about generating an agent expression at all. In the xmm register case, when an unop_extract_operation will be created, I have sketched out how the agent expression could be handled, however, this code is currently not reached. When we try to generate the agent expression to place the xmm register on the stack, GDB hits this error: (gdb) trace -probe-stap test:xmmreg Tracepoint 1 at 0x401166 (gdb) actions Enter actions for tracepoint 1, one per line. End with a line saying just "end". >collect $_probe_arg0 Value not scalar: cannot be an rvalue. This is because GDB doesn't currently support placing non-scalar types on the agent expression evaluation stack. Solving this is clearly related to the original problem, but feels a bit like a second problem. I'd like to get feedback on whether my approach to solving the original problem is acceptable or not before I start looking at how to handle xmm registers within agent expressions.
2022-01-27Fix GDB internal error by using text (instead of data) section offsetKevin Buettner1-1/+1
Fedora Rawhide is now using gcc-12.0. As part of updating to the gcc-12.0 package set, Rawhide is also now using a version of libgcc_s which lacks a .data section. This causes gdb to fail in the following fashion while debugging a program (such as gdb) which uses libgcc_s: (top-gdb) run Starting program: rawhide-master/bld/gdb/gdb ... objfiles.h:467: internal-error: sect_index_data not initialized A problem internal to GDB has been detected, further debugging may prove unreliable. ... I snipped the backtrace from the above output. Instead, here's a portion of a backtrace obtained using GDB's backtrace command. (Obviously, in order to obtain it, I used a GDB which has been patched with this commit.) #0 internal_error ( file=0xc6a508 "gdb/objfiles.h", line=467, fmt=0xc6a4e8 "sect_index_data not initialized") at gdbsupport/errors.cc:51 #1 0x00000000005f9651 in objfile::data_section_offset (this=0x4fa48f0) at gdb/objfiles.h:467 #2 0x000000000097c5f8 in relocate_address (address=0x17244, objfile=0x4fa48f0) at gdb/stap-probe.c:1333 #3 0x000000000097c630 in stap_probe::get_relocated_address (this=0xa1a17a0, objfile=0x4fa48f0) at gdb/stap-probe.c:1341 #4 0x00000000004d7025 in create_exception_master_breakpoint_probe ( objfile=0x4fa48f0) at gdb/breakpoint.c:3505 #5 0x00000000004d7426 in create_exception_master_breakpoint () at gdb/breakpoint.c:3575 #6 0x00000000004efcc1 in breakpoint_re_set () at gdb/breakpoint.c:13407 #7 0x0000000000956998 in solib_add (pattern=0x0, from_tty=0, readsyms=1) at gdb/solib.c:1001 #8 0x00000000009576a8 in handle_solib_event () at gdb/solib.c:1269 ... The function 'relocate_address' in gdb/stap-probe.c attempts to do its "relocation" by using objfile->data_section_offset(). That method, data_section_offset() is defined as follows in objfiles.h: CORE_ADDR data_section_offset () const { return section_offsets[SECT_OFF_DATA (this)]; } The internal error occurs when the SECT_OFF_DATA macro finds that the 'sect_index_data' field is -1: #define SECT_OFF_DATA(objfile) \ ((objfile->sect_index_data == -1) \ ? (internal_error (__FILE__, __LINE__, \ _("sect_index_data not initialized")), -1) \ : objfile->sect_index_data) relocate_address() is obtaining the section offset in order to compute a relocated address. For some ABIs, such as the System V ABI, the section offsets will all be the same. So for those ABIs, it doesn't matter which offset is used. However, other ABIs, such as the FDPIC ABI, will have different offsets for the various sections. Thus, for those ABIs, it is vital that this and other relocation code use the correct offset. In stap_probe::get_relocated_address, the address to which to add the offset (thus forming the relocated address) is obtained via this->get_address (); get_address is a getter for m_address in probe.h. It's documented/defined as follows (also in probe.h): /* The address where the probe is inserted, relative to SECT_OFF_TEXT. */ CORE_ADDR m_address; (Thanks to Tom Tromey for this observation.) So, based on this, the current use of data_section_offset / SECT_OFF_DATA is wrong. This relocation code should have been using text_section_offset / SECT_OFF_TEXT all along. That being the case, I've adjusted the stap-probe.c relocation code accordingly. Searching the sources turned up one other use of data_section_offset, in gdb/dtrace-probe.c, so I've updated that code as well. The same reasoning presented above applies to this case too. Summary: * gdb/dtrace-probe.c (dtrace_probe::get_relocated_address): Use method text_section_offset instead of data_section_offset. * gdb/stap-probe.c (relocate_address): Likewise.
2022-01-01Automatic Copyright Year update after running gdb/copyright.pyJoel Brobecker1-1/+1
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
2021-03-15Fix GDB build with GCC 4.8.2Tom Tromey1-1/+3
PR build/27579 points out that the expression rewrite series introduced a build failure with GCC 4.8.2. The bug is that there's no std::hash specialization for enum exp_opcode. This patch fixes the problem by using gdb::hash_enum. 2021-03-15 Tom Tromey <tromey@adacore.com> PR build/27579: * rust-exp.y (maker_map): Use gdb::hash_enum. * stap-probe.c (stap_maker_map): Use gdb::hash_enum.
2021-03-08Remove union exp_elementTom Tromey1-6/+1
This removes union exp_element functions that either create such elements or walk them. struct expression no longer holds exp_elements. A couple of language_defn methods are also removed, as they are obsolete. Note that this patch also removes the print_expression code. The only in-tree caller of this was from dump_prefix_expression, which is only called when expression debugging is enabled. Implementing this would involve a fair amount of code, and it seems to me that prefix dumping is preferable anyway, as it is unambiguous. So, I have not reimplemented this feature. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * value.h (evaluate_subexp_with_coercion): Don't declare. * parse.c (exp_descriptor_standard): Remove. (expr_builder::expr_builder, expr_builder::release): Update. (expression::expression): Remove size_t parameter. (expression::~expression): Simplify. (expression::resize): Remove. (write_exp_elt, write_exp_elt_opcode, write_exp_elt_sym) (write_exp_elt_msym, write_exp_elt_block, write_exp_elt_objfile) (write_exp_elt_longcst, write_exp_elt_floatcst) (write_exp_elt_type, write_exp_elt_intern, write_exp_string) (write_exp_string_vector, write_exp_bitstring): Remove. * p-lang.h (class pascal_language) <opcode_print_table, op_print_tab>: Remove. * p-lang.c (pascal_language::op_print_tab): Remove. * opencl-lang.c (class opencl_language) <opcode_print_table>: Remove. * objc-lang.c (objc_op_print_tab): Remove. (class objc_language) <opcode_print_table>: Remove. * m2-lang.h (class m2_language) <opcode_print_table, op_print_tab>: Remove. * m2-lang.c (m2_language::op_print_tab): Remove. * language.h (struct language_defn) <post_parser, expression_ops, opcode_print_table>: Remove. * language.c (language_defn::expression_ops) (auto_or_unknown_language::opcode_print_table): Remove. * go-lang.h (class go_language) <opcode_print_table, op_print_tab>: Remove. * go-lang.c (go_language::op_print_tab): Remove. * f-lang.h (class f_language) <opcode_print_table>: Remove <op_print_tab>: Remove. * f-lang.c (f_language::op_print_tab): Remove. * expression.h (union exp_element): Remove. (struct expression): Remove size_t parameter from constructor. <resize>: Remove. <first_opcode>: Update. <nelts, elts>: Remove. (EXP_ELEM_TO_BYTES, BYTES_TO_EXP_ELEM): Remove. (evaluate_subexp_standard, print_expression, op_string) (dump_raw_expression): Don't declare. * expprint.c (print_expression, print_subexp) (print_subexp_funcall, print_subexp_standard, op_string) (dump_raw_expression, dump_subexp, dump_subexp_body) (dump_subexp_body_funcall, dump_subexp_body_standard): Remove. (dump_prefix_expression): Update. * eval.c (evaluate_subexp): Remove. (evaluate_expression, evaluate_type): Update. (evaluate_subexpression_type): Remove. (fetch_subexp_value): Remove "pc" parameter. Update. (extract_field_op, evaluate_struct_tuple, evaluate_funcall) (evaluate_subexp_standard, evaluate_subexp_for_address) (evaluate_subexp_with_coercion, evaluate_subexp_for_sizeof) (evaluate_subexp_for_cast): Remove. (parse_and_eval_type): Update. * dtrace-probe.c (dtrace_probe::compile_to_ax): Update. * d-lang.c (d_op_print_tab): Remove. (class d_language) <opcode_print_table>: Remove. * c-lang.h (c_op_print_tab): Don't declare. * c-lang.c (c_op_print_tab): Remove. (class c_language, class cplus_language, class asm_language, class minimal_language) <opcode_print_table>: Remove. * breakpoint.c (update_watchpoint, watchpoint_check) (watchpoint_exp_is_const, watch_command_1): Update. * ax-gdb.h (union exp_element): Don't declare. * ax-gdb.c (const_var_ref, const_expr, maybe_const_expr) (gen_repeat, gen_sizeof, gen_expr_for_cast, gen_expr) (gen_expr_binop_rest): Remove. (gen_trace_for_expr, gen_eval_for_expr, gen_printf): Update. * ada-lang.c (ada_op_print_tab): Remove. (class ada_language) <post_parser, opcode_print_table>: Remove.
2021-03-08Convert stap probes to create operationsTom Tromey1-75/+112
This changes the stap probe code to create operations, rather than exp_elements. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * stap-probe.c (binop_maker_ftype): New typedef. (stap_maker_map): New global. (stap_make_binop): New function. (stap_parse_register_operand): Return operation_up. (stap_parse_single_operand, stap_parse_argument_conditionally) (stap_parse_argument_1): Likewise. (stap_parse_argument): Create operations. (stap_probe::parse_arguments): Update. (_initialize_stap_probe): Initialize stap_maker_map. * ppc-linux-tdep.c (ppc_stap_parse_special_token): Change return type. * i386-tdep.h (i386_stap_parse_special_token): Change return type. * i386-tdep.c (i386_stap_parse_special_token_triplet) (i386_stap_parse_special_token_three_arg_disp) (i386_stap_parse_special_token): Change return type. * gdbarch.sh (stap_parse_special_token): Change return type. * gdbarch.c: Rebuild. * gdbarch.h: Rebuild. * arm-linux-tdep.c (arm_stap_parse_special_token): Change return type. * aarch64-linux-tdep.c (aarch64_stap_parse_special_token): Change return type.
2021-03-08Add an expr::operation_up to struct expressionTom Tromey1-1/+4
This adds an expr::operation_up to struct expression, and then modifies various parts of GDB to use this member when it is non-null. The list of such spots was a bit surprising to me, and found only after writing most of the code and then noticing what no longer compiled. In a few spots, new accessor methods are added to operation subclasses, so that code that dissects an expression will work with the new scheme. After this change, code that constructs an expression can be switched to the new form without breaking. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * ada-exp.h (class ada_var_value_operation) <get_symbol>: Remove; now in superclass. * value.h (fetch_subexp_value): Add "op" parameter. * value.c (init_if_undefined_command): Update. * tracepoint.c (validate_actionline, encode_actions_1): Update. * stap-probe.c (stap_probe::compile_to_ax): Update. * printcmd.c (set_command): Update. * ppc-linux-nat.c (ppc_linux_nat_target::check_condition): Update. * parser-defs.h (struct expr_builder) <set_operation>: New method. * parse.c (parse_exp_in_context, exp_uses_objfile): Update. * expression.h (struct expression) <first_opcode>: Update. <op>: New member. * expprint.c (dump_raw_expression, dump_prefix_expression): Update. * expop.h (class var_value_operation) <get_symbol>: New method. (class register_operation) <get_name>: New method. (class equal_operation): No longer a typedef, now a subclass. (class unop_memval_operation) <get_type>: New method. (class assign_operation) <get_lhs>: New method. (class unop_cast_operation) <get_type>: New method. * eval.c (evaluate_expression, evaluate_type) (evaluate_subexpression_type): Update. (fetch_subexp_value): Add "op" parameter. (parse_and_eval_type): Update. * dtrace-probe.c (dtrace_probe::compile_to_ax): Update. * breakpoint.c (update_watchpoint, watchpoint_check) (watchpoint_exp_is_const, watch_command_1): Update. * ax-gdb.c (gen_trace_for_expr, gen_eval_for_expr, gen_printf): Update.
2021-02-09Fix typo in stap_parse_argument_conditionallyTom Tromey1-1/+1
This fixes a typo in an error message in stap_parse_argument_conditionally. gdb/ChangeLog 2021-02-09 Tom Tromey <tom@tromey.com> * stap-probe.c (stap_parse_argument_conditionally): Fix typo.
2021-01-20Fix a few stap parser issues and add a new test for probe expressionsSergio Durigan Junior1-5/+26
The creation of this patch was motivated by Tom's "Change handling of '!' operator in stap probes" patch. While reviewing his patch, I stumbled upon a few issues with the stap expression parser. They are: - As it turns out, even with Tom's patch applied the parser doesn't properly handle the '!' operator. The underlying issue was the fact that stap_parse_argument_conditionally also needed to be patched in order to recognize '!' as an operator that is part of a single operand, and parse it accordingly. - While writing the testcase I'm proposing on this patch, I found that parenthesized sub-expressions were not being parsed correctly when there was another term after them. For example: 1 - (2 + 3) + 4 In this case, the parser was considering "1" to be the left-side of the expression, and "(2 + 3) + 4" to be the right-side. The patch fixes the parser by making it identify whether a parenthesized sub-expression has just been parsed, and act accordingly. I've tested this on my Debian testing amd64, and everything seems OK. gdb/ChangeLog: 2021-01-20 Sergio Durigan Junior <sergiodj@sergiodj.net> Tom Tromey <tom@tromey.com> * stap-probe.c (stap_parse_single_operand): Handle '!' operator. (stap_parse_argument_conditionally): Likewise. Skip spaces after processing open-parenthesis sub-expression. (stap_parse_argument_1): Skip spaces after call to stap_parse_argument_conditionally. Handle case when right-side expression is a parenthesized sub-expression. Skip spaces after call to stap_parse_argument_1. gdb/testsuite/ChangeLog: 2021-01-20 Sergio Durigan Junior <sergiodj@sergiodj.net> * gdb.arch/amd64-stap-expressions.S: New file. * gdb.arch/amd64-stap-expressions.exp: New file.
2021-01-01Update copyright year range in all GDB filesJoel Brobecker1-1/+1
This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
2020-12-15Add expected type parameter to evaluate_expressionTom Tromey1-3/+1
While working on the expression rewrite, I found a few spots that called the internal functions of the expression evaluator, just to pass in an expected type. This patch adds a parameter to evaluate_expression so that these functions can avoid this dependency. Regression tested on x86-64 Fedora 28. gdb/ChangeLog 2020-12-15 Tom Tromey <tom@tromey.com> * stap-probe.c (stap_probe::evaluate_argument): Use evaluate_expression. * dtrace-probe.c (dtrace_probe::evaluate_argument): Use evaluate_expression. * value.h (evaluate_expression): Add expect_type parameter. * objc-lang.c (print_object_command): Call evaluate_expression. * eval.c (evaluate_expression): Add expect_type parameter.
2020-11-02gdb, gdbserver, gdbsupport: fix leading space vs tabs issuesSimon Marchi1-2/+2
Many spots incorrectly use only spaces for indentation (for example, there are a lot of spots in ada-lang.c). I've always found it awkward when I needed to edit one of these spots: do I keep the original wrong indentation, or do I fix it? What if the lines around it are also wrong, do I fix them too? I probably don't want to fix them in the same patch, to avoid adding noise to my patch. So I propose to fix as much as possible once and for all (hopefully). One typical counter argument for this is that it makes code archeology more difficult, because git-blame will show this commit as the last change for these lines. My counter counter argument is: when git-blaming, you often need to do "blame the file at the parent commit" anyway, to go past some other refactor that touched the line you are interested in, but is not the change you are looking for. So you already need a somewhat efficient way to do this. Using some interactive tool, rather than plain git-blame, makes this trivial. For example, I use "tig blame <file>", where going back past the commit that changed the currently selected line is one keystroke. It looks like Magit in Emacs does it too (though I've never used it). Web viewers of Github and Gitlab do it too. My point is that it won't really make archeology more difficult. The other typical counter argument is that it will cause conflicts with existing patches. That's true... but it's a one time cost, and those are not conflicts that are difficult to resolve. I have also tried "git rebase --ignore-whitespace", it seems to work well. Although that will re-introduce the faulty indentation, so one needs to take care of fixing the indentation in the patch after that (which is easy). gdb/ChangeLog: * aarch64-linux-tdep.c: Fix indentation. * aarch64-ravenscar-thread.c: Fix indentation. * aarch64-tdep.c: Fix indentation. * aarch64-tdep.h: Fix indentation. * ada-lang.c: Fix indentation. * ada-lang.h: Fix indentation. * ada-tasks.c: Fix indentation. * ada-typeprint.c: Fix indentation. * ada-valprint.c: Fix indentation. * ada-varobj.c: Fix indentation. * addrmap.c: Fix indentation. * addrmap.h: Fix indentation. * agent.c: Fix indentation. * aix-thread.c: Fix indentation. * alpha-bsd-nat.c: Fix indentation. * alpha-linux-tdep.c: Fix indentation. * alpha-mdebug-tdep.c: Fix indentation. * alpha-nbsd-tdep.c: Fix indentation. * alpha-obsd-tdep.c: Fix indentation. * alpha-tdep.c: Fix indentation. * amd64-bsd-nat.c: Fix indentation. * amd64-darwin-tdep.c: Fix indentation. * amd64-linux-nat.c: Fix indentation. * amd64-linux-tdep.c: Fix indentation. * amd64-nat.c: Fix indentation. * amd64-obsd-tdep.c: Fix indentation. * amd64-tdep.c: Fix indentation. * amd64-windows-tdep.c: Fix indentation. * annotate.c: Fix indentation. * arc-tdep.c: Fix indentation. * arch-utils.c: Fix indentation. * arch/arm-get-next-pcs.c: Fix indentation. * arch/arm.c: Fix indentation. * arm-linux-nat.c: Fix indentation. * arm-linux-tdep.c: Fix indentation. * arm-nbsd-tdep.c: Fix indentation. * arm-pikeos-tdep.c: Fix indentation. * arm-tdep.c: Fix indentation. * arm-tdep.h: Fix indentation. * arm-wince-tdep.c: Fix indentation. * auto-load.c: Fix indentation. * auxv.c: Fix indentation. * avr-tdep.c: Fix indentation. * ax-gdb.c: Fix indentation. * ax-general.c: Fix indentation. * bfin-linux-tdep.c: Fix indentation. * block.c: Fix indentation. * block.h: Fix indentation. * blockframe.c: Fix indentation. * bpf-tdep.c: Fix indentation. * break-catch-sig.c: Fix indentation. * break-catch-syscall.c: Fix indentation. * break-catch-throw.c: Fix indentation. * breakpoint.c: Fix indentation. * breakpoint.h: Fix indentation. * bsd-uthread.c: Fix indentation. * btrace.c: Fix indentation. * build-id.c: Fix indentation. * buildsym-legacy.h: Fix indentation. * buildsym.c: Fix indentation. * c-typeprint.c: Fix indentation. * c-valprint.c: Fix indentation. * c-varobj.c: Fix indentation. * charset.c: Fix indentation. * cli/cli-cmds.c: Fix indentation. * cli/cli-decode.c: Fix indentation. * cli/cli-decode.h: Fix indentation. * cli/cli-script.c: Fix indentation. * cli/cli-setshow.c: Fix indentation. * coff-pe-read.c: Fix indentation. * coffread.c: Fix indentation. * compile/compile-cplus-types.c: Fix indentation. * compile/compile-object-load.c: Fix indentation. * compile/compile-object-run.c: Fix indentation. * completer.c: Fix indentation. * corefile.c: Fix indentation. * corelow.c: Fix indentation. * cp-abi.h: Fix indentation. * cp-namespace.c: Fix indentation. * cp-support.c: Fix indentation. * cp-valprint.c: Fix indentation. * cris-linux-tdep.c: Fix indentation. * cris-tdep.c: Fix indentation. * darwin-nat-info.c: Fix indentation. * darwin-nat.c: Fix indentation. * darwin-nat.h: Fix indentation. * dbxread.c: Fix indentation. * dcache.c: Fix indentation. * disasm.c: Fix indentation. * dtrace-probe.c: Fix indentation. * dwarf2/abbrev.c: Fix indentation. * dwarf2/attribute.c: Fix indentation. * dwarf2/expr.c: Fix indentation. * dwarf2/frame.c: Fix indentation. * dwarf2/index-cache.c: Fix indentation. * dwarf2/index-write.c: Fix indentation. * dwarf2/line-header.c: Fix indentation. * dwarf2/loc.c: Fix indentation. * dwarf2/macro.c: Fix indentation. * dwarf2/read.c: Fix indentation. * dwarf2/read.h: Fix indentation. * elfread.c: Fix indentation. * eval.c: Fix indentation. * event-top.c: Fix indentation. * exec.c: Fix indentation. * exec.h: Fix indentation. * expprint.c: Fix indentation. * f-lang.c: Fix indentation. * f-typeprint.c: Fix indentation. * f-valprint.c: Fix indentation. * fbsd-nat.c: Fix indentation. * fbsd-tdep.c: Fix indentation. * findvar.c: Fix indentation. * fork-child.c: Fix indentation. * frame-unwind.c: Fix indentation. * frame-unwind.h: Fix indentation. * frame.c: Fix indentation. * frv-linux-tdep.c: Fix indentation. * frv-tdep.c: Fix indentation. * frv-tdep.h: Fix indentation. * ft32-tdep.c: Fix indentation. * gcore.c: Fix indentation. * gdb_bfd.c: Fix indentation. * gdbarch.sh: Fix indentation. * gdbarch.c: Re-generate * gdbarch.h: Re-generate. * gdbcore.h: Fix indentation. * gdbthread.h: Fix indentation. * gdbtypes.c: Fix indentation. * gdbtypes.h: Fix indentation. * glibc-tdep.c: Fix indentation. * gnu-nat.c: Fix indentation. * gnu-nat.h: Fix indentation. * gnu-v2-abi.c: Fix indentation. * gnu-v3-abi.c: Fix indentation. * go32-nat.c: Fix indentation. * guile/guile-internal.h: Fix indentation. * guile/scm-cmd.c: Fix indentation. * guile/scm-frame.c: Fix indentation. * guile/scm-iterator.c: Fix indentation. * guile/scm-math.c: Fix indentation. * guile/scm-ports.c: Fix indentation. * guile/scm-pretty-print.c: Fix indentation. * guile/scm-value.c: Fix indentation. * h8300-tdep.c: Fix indentation. * hppa-linux-nat.c: Fix indentation. * hppa-linux-tdep.c: Fix indentation. * hppa-nbsd-nat.c: Fix indentation. * hppa-nbsd-tdep.c: Fix indentation. * hppa-obsd-nat.c: Fix indentation. * hppa-tdep.c: Fix indentation. * hppa-tdep.h: Fix indentation. * i386-bsd-nat.c: Fix indentation. * i386-darwin-nat.c: Fix indentation. * i386-darwin-tdep.c: Fix indentation. * i386-dicos-tdep.c: Fix indentation. * i386-gnu-nat.c: Fix indentation. * i386-linux-nat.c: Fix indentation. * i386-linux-tdep.c: Fix indentation. * i386-nto-tdep.c: Fix indentation. * i386-obsd-tdep.c: Fix indentation. * i386-sol2-nat.c: Fix indentation. * i386-tdep.c: Fix indentation. * i386-tdep.h: Fix indentation. * i386-windows-tdep.c: Fix indentation. * i387-tdep.c: Fix indentation. * i387-tdep.h: Fix indentation. * ia64-libunwind-tdep.c: Fix indentation. * ia64-libunwind-tdep.h: Fix indentation. * ia64-linux-nat.c: Fix indentation. * ia64-linux-tdep.c: Fix indentation. * ia64-tdep.c: Fix indentation. * ia64-tdep.h: Fix indentation. * ia64-vms-tdep.c: Fix indentation. * infcall.c: Fix indentation. * infcmd.c: Fix indentation. * inferior.c: Fix indentation. * infrun.c: Fix indentation. * iq2000-tdep.c: Fix indentation. * language.c: Fix indentation. * linespec.c: Fix indentation. * linux-fork.c: Fix indentation. * linux-nat.c: Fix indentation. * linux-tdep.c: Fix indentation. * linux-thread-db.c: Fix indentation. * lm32-tdep.c: Fix indentation. * m2-lang.c: Fix indentation. * m2-typeprint.c: Fix indentation. * m2-valprint.c: Fix indentation. * m32c-tdep.c: Fix indentation. * m32r-linux-tdep.c: Fix indentation. * m32r-tdep.c: Fix indentation. * m68hc11-tdep.c: Fix indentation. * m68k-bsd-nat.c: Fix indentation. * m68k-linux-nat.c: Fix indentation. * m68k-linux-tdep.c: Fix indentation. * m68k-tdep.c: Fix indentation. * machoread.c: Fix indentation. * macrocmd.c: Fix indentation. * macroexp.c: Fix indentation. * macroscope.c: Fix indentation. * macrotab.c: Fix indentation. * macrotab.h: Fix indentation. * main.c: Fix indentation. * mdebugread.c: Fix indentation. * mep-tdep.c: Fix indentation. * mi/mi-cmd-catch.c: Fix indentation. * mi/mi-cmd-disas.c: Fix indentation. * mi/mi-cmd-env.c: Fix indentation. * mi/mi-cmd-stack.c: Fix indentation. * mi/mi-cmd-var.c: Fix indentation. * mi/mi-cmds.c: Fix indentation. * mi/mi-main.c: Fix indentation. * mi/mi-parse.c: Fix indentation. * microblaze-tdep.c: Fix indentation. * minidebug.c: Fix indentation. * minsyms.c: Fix indentation. * mips-linux-nat.c: Fix indentation. * mips-linux-tdep.c: Fix indentation. * mips-nbsd-tdep.c: Fix indentation. * mips-tdep.c: Fix indentation. * mn10300-linux-tdep.c: Fix indentation. * mn10300-tdep.c: Fix indentation. * moxie-tdep.c: Fix indentation. * msp430-tdep.c: Fix indentation. * namespace.h: Fix indentation. * nat/fork-inferior.c: Fix indentation. * nat/gdb_ptrace.h: Fix indentation. * nat/linux-namespaces.c: Fix indentation. * nat/linux-osdata.c: Fix indentation. * nat/netbsd-nat.c: Fix indentation. * nat/x86-dregs.c: Fix indentation. * nbsd-nat.c: Fix indentation. * nbsd-tdep.c: Fix indentation. * nios2-linux-tdep.c: Fix indentation. * nios2-tdep.c: Fix indentation. * nto-procfs.c: Fix indentation. * nto-tdep.c: Fix indentation. * objfiles.c: Fix indentation. * objfiles.h: Fix indentation. * opencl-lang.c: Fix indentation. * or1k-tdep.c: Fix indentation. * osabi.c: Fix indentation. * osabi.h: Fix indentation. * osdata.c: Fix indentation. * p-lang.c: Fix indentation. * p-typeprint.c: Fix indentation. * p-valprint.c: Fix indentation. * parse.c: Fix indentation. * ppc-linux-nat.c: Fix indentation. * ppc-linux-tdep.c: Fix indentation. * ppc-nbsd-nat.c: Fix indentation. * ppc-nbsd-tdep.c: Fix indentation. * ppc-obsd-nat.c: Fix indentation. * ppc-ravenscar-thread.c: Fix indentation. * ppc-sysv-tdep.c: Fix indentation. * ppc64-tdep.c: Fix indentation. * printcmd.c: Fix indentation. * proc-api.c: Fix indentation. * producer.c: Fix indentation. * producer.h: Fix indentation. * prologue-value.c: Fix indentation. * prologue-value.h: Fix indentation. * psymtab.c: Fix indentation. * python/py-arch.c: Fix indentation. * python/py-bpevent.c: Fix indentation. * python/py-event.c: Fix indentation. * python/py-event.h: Fix indentation. * python/py-finishbreakpoint.c: Fix indentation. * python/py-frame.c: Fix indentation. * python/py-framefilter.c: Fix indentation. * python/py-inferior.c: Fix indentation. * python/py-infthread.c: Fix indentation. * python/py-objfile.c: Fix indentation. * python/py-prettyprint.c: Fix indentation. * python/py-registers.c: Fix indentation. * python/py-signalevent.c: Fix indentation. * python/py-stopevent.c: Fix indentation. * python/py-stopevent.h: Fix indentation. * python/py-threadevent.c: Fix indentation. * python/py-tui.c: Fix indentation. * python/py-unwind.c: Fix indentation. * python/py-value.c: Fix indentation. * python/py-xmethods.c: Fix indentation. * python/python-internal.h: Fix indentation. * python/python.c: Fix indentation. * ravenscar-thread.c: Fix indentation. * record-btrace.c: Fix indentation. * record-full.c: Fix indentation. * record.c: Fix indentation. * reggroups.c: Fix indentation. * regset.h: Fix indentation. * remote-fileio.c: Fix indentation. * remote.c: Fix indentation. * reverse.c: Fix indentation. * riscv-linux-tdep.c: Fix indentation. * riscv-ravenscar-thread.c: Fix indentation. * riscv-tdep.c: Fix indentation. * rl78-tdep.c: Fix indentation. * rs6000-aix-tdep.c: Fix indentation. * rs6000-lynx178-tdep.c: Fix indentation. * rs6000-nat.c: Fix indentation. * rs6000-tdep.c: Fix indentation. * rust-lang.c: Fix indentation. * rx-tdep.c: Fix indentation. * s12z-tdep.c: Fix indentation. * s390-linux-tdep.c: Fix indentation. * score-tdep.c: Fix indentation. * ser-base.c: Fix indentation. * ser-mingw.c: Fix indentation. * ser-uds.c: Fix indentation. * ser-unix.c: Fix indentation. * serial.c: Fix indentation. * sh-linux-tdep.c: Fix indentation. * sh-nbsd-tdep.c: Fix indentation. * sh-tdep.c: Fix indentation. * skip.c: Fix indentation. * sol-thread.c: Fix indentation. * solib-aix.c: Fix indentation. * solib-darwin.c: Fix indentation. * solib-frv.c: Fix indentation. * solib-svr4.c: Fix indentation. * solib.c: Fix indentation. * source.c: Fix indentation. * sparc-linux-tdep.c: Fix indentation. * sparc-nbsd-tdep.c: Fix indentation. * sparc-obsd-tdep.c: Fix indentation. * sparc-ravenscar-thread.c: Fix indentation. * sparc-tdep.c: Fix indentation. * sparc64-linux-tdep.c: Fix indentation. * sparc64-nbsd-tdep.c: Fix indentation. * sparc64-obsd-tdep.c: Fix indentation. * sparc64-tdep.c: Fix indentation. * stabsread.c: Fix indentation. * stack.c: Fix indentation. * stap-probe.c: Fix indentation. * stubs/ia64vms-stub.c: Fix indentation. * stubs/m32r-stub.c: Fix indentation. * stubs/m68k-stub.c: Fix indentation. * stubs/sh-stub.c: Fix indentation. * stubs/sparc-stub.c: Fix indentation. * symfile-mem.c: Fix indentation. * symfile.c: Fix indentation. * symfile.h: Fix indentation. * symmisc.c: Fix indentation. * symtab.c: Fix indentation. * symtab.h: Fix indentation. * target-float.c: Fix indentation. * target.c: Fix indentation. * target.h: Fix indentation. * tic6x-tdep.c: Fix indentation. * tilegx-linux-tdep.c: Fix indentation. * tilegx-tdep.c: Fix indentation. * top.c: Fix indentation. * tracefile-tfile.c: Fix indentation. * tracepoint.c: Fix indentation. * tui/tui-disasm.c: Fix indentation. * tui/tui-io.c: Fix indentation. * tui/tui-regs.c: Fix indentation. * tui/tui-stack.c: Fix indentation. * tui/tui-win.c: Fix indentation. * tui/tui-winsource.c: Fix indentation. * tui/tui.c: Fix indentation. * typeprint.c: Fix indentation. * ui-out.h: Fix indentation. * unittests/copy_bitwise-selftests.c: Fix indentation. * unittests/memory-map-selftests.c: Fix indentation. * utils.c: Fix indentation. * v850-tdep.c: Fix indentation. * valarith.c: Fix indentation. * valops.c: Fix indentation. * valprint.c: Fix indentation. * valprint.h: Fix indentation. * value.c: Fix indentation. * value.h: Fix indentation. * varobj.c: Fix indentation. * vax-tdep.c: Fix indentation. * windows-nat.c: Fix indentation. * windows-tdep.c: Fix indentation. * xcoffread.c: Fix indentation. * xml-syscall.c: Fix indentation. * xml-tdesc.c: Fix indentation. * xstormy16-tdep.c: Fix indentation. * xtensa-config.c: Fix indentation. * xtensa-linux-nat.c: Fix indentation. * xtensa-linux-tdep.c: Fix indentation. * xtensa-tdep.c: Fix indentation. gdbserver/ChangeLog: * ax.cc: Fix indentation. * dll.cc: Fix indentation. * inferiors.h: Fix indentation. * linux-low.cc: Fix indentation. * linux-nios2-low.cc: Fix indentation. * linux-ppc-ipa.cc: Fix indentation. * linux-ppc-low.cc: Fix indentation. * linux-x86-low.cc: Fix indentation. * linux-xtensa-low.cc: Fix indentation. * regcache.cc: Fix indentation. * server.cc: Fix indentation. * tracepoint.cc: Fix indentation. gdbsupport/ChangeLog: * common-exceptions.h: Fix indentation. * event-loop.cc: Fix indentation. * fileio.cc: Fix indentation. * filestuff.cc: Fix indentation. * gdb-dlfcn.cc: Fix indentation. * gdb_string_view.h: Fix indentation. * job-control.cc: Fix indentation. * signals.cc: Fix indentation. Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
2020-09-19Use gdb_bfd_sections in get_stap_base_addressTom Tromey1-14/+4
This changes get_stap_base_address to avoid bfd_map_over_sections, in favor of iteration. gdb/ChangeLog 2020-09-19 Tom Tromey <tom@tromey.com> * stap-probe.c (get_stap_base_address_1): Remove. (get_stap_base_address): Use foreach.
2020-05-20Use bfd_get_filename throughout gdbAlan Modra1-1/+1
This patch makes gdb use the inline accessor for all bfd->filename read accesses. * coff-pe-read.c (read_pe_exported_syms): Use bfd_get_filename rather than accessing bfd->filename directly. * dtrace-probe.c (dtrace_static_probe_ops::get_probes): Likewise, and use bfd_section_name. * dwarf2/frame.c (decode_frame_entry): Likewise. * exec.c (exec_set_section_address): Likewise. * solib-aix.c (solib_aix_bfd_open): Likewise. * stap-probe.c (get_stap_base_address): Likewise. * symfile.c (reread_symbols): Likewise.
2020-04-18Change get_objfile_arch to a method on objfileTom Tromey1-1/+1
This changes get_objfile_arch to be a new inline method, objfile::arch. To my surprise, this function came up while profiling DWARF psymbol reading. Making this change improved performance from 1.986 seconds to 1.869 seconds. Both measurements were done by taking the mean of 10 runs on a fixed copy of the gdb executable. gdb/ChangeLog 2020-04-18 Tom Tromey <tom@tromey.com> * xcoffread.c (enter_line_range, scan_xcoff_symtab): Update. * value.c (value_fn_field): Update. * valops.c (find_function_in_inferior) (value_allocate_space_in_inferior): Update. * tui/tui-winsource.c (tui_update_source_windows_with_line): Update. * tui/tui-source.c (tui_source_window::set_contents): Update. * symtab.c (lookup_global_or_static_symbol) (find_function_start_sal_1, skip_prologue_sal) (print_msymbol_info, find_gnu_ifunc, symbol_arch): Update. * symmisc.c (dump_msymbols, dump_symtab_1) (maintenance_print_one_line_table): Update. * symfile.c (init_entry_point_info, section_is_mapped) (list_overlays_command, simple_read_overlay_table) (simple_overlay_update_1): Update. * stap-probe.c (handle_stap_probe): Update. * stabsread.c (dbx_init_float_type, define_symbol) (read_one_struct_field, read_enum_type, read_range_type): Update. * source.c (info_line_command): Update. * python/python.c (gdbpy_source_objfile_script) (gdbpy_execute_objfile_script): Update. * python/py-type.c (save_objfile_types): Update. * python/py-objfile.c (py_free_objfile): Update. * python/py-inferior.c (python_new_objfile): Update. * psymtab.c (psym_find_pc_sect_compunit_symtab, dump_psymtab) (dump_psymtab_addrmap_1, maintenance_info_psymtabs) (maintenance_check_psymtabs): Update. * printcmd.c (info_address_command): Update. * objfiles.h (struct objfile) <arch>: New method, from get_objfile_arch. (get_objfile_arch): Don't declare. * objfiles.c (get_objfile_arch): Remove. (filter_overlapping_sections): Update. * minsyms.c (msymbol_is_function): Update. * mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines) (output_nondebug_symbol): Update. * mdebugread.c (parse_symbol, basic_type, parse_partial_symbols) (mdebug_expand_psymtab): Update. * machoread.c (macho_add_oso_symfile): Update. * linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Update. * linux-fork.c (checkpoint_command): Update. * linespec.c (convert_linespec_to_sals): Update. * jit.c (finalize_symtab): Update. * infrun.c (insert_exception_resume_from_probe): Update. * ia64-tdep.c (ia64_find_unwind_table): Update. * hppa-tdep.c (internalize_unwinds): Update. * gdbtypes.c (get_type_arch, init_float_type, objfile_type): Update. * gcore.c (call_target_sbrk): Update. * elfread.c (record_minimal_symbol, elf_symtab_read) (elf_rel_plt_read, elf_gnu_ifunc_record_cache) (elf_gnu_ifunc_resolve_by_got): Update. * dwarf2/read.c (create_addrmap_from_index) (create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab) (read_debug_names_from_section) (process_psymtab_comp_unit_reader, add_partial_symbol) (add_partial_subprogram, process_full_comp_unit) (read_file_scope, read_func_scope, read_lexical_block_scope) (read_call_site_scope, dwarf2_ranges_read) (dwarf2_record_block_ranges, dwarf2_add_field) (mark_common_block_symbol_computed, read_tag_pointer_type) (read_tag_string_type, dwarf2_init_float_type) (dwarf2_init_complex_target_type, read_base_type) (partial_die_info::read, partial_die_info::read) (read_attribute_value, dwarf_decode_lines_1, new_symbol) (dwarf2_fetch_die_loc_sect_off): Update. * dwarf2/loc.c (dwarf2_find_location_expression) (class dwarf_evaluate_loc_desc, rw_pieced_value) (dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval) (dwarf2_loc_desc_get_symbol_read_needs) (locexpr_describe_location_piece, locexpr_describe_location_1) (loclist_describe_location): Update. * dwarf2/index-write.c (write_debug_names): Update. * dwarf2/frame.c (dwarf2_build_frame_info): Update. * dtrace-probe.c (dtrace_process_dof): Update. * dbxread.c (read_dbx_symtab, dbx_end_psymtab) (process_one_symbol): Update. * ctfread.c (ctf_init_float_type, read_base_type): Update. * coffread.c (coff_symtab_read, enter_linenos, decode_base_type) (coff_read_enum_type): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * buildsym.c (buildsym_compunit::finish_block_internal): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, get_sal_arch): Update. * block.c (block_gdbarch): Update. * annotate.c (annotate_source_line): Update.
2020-01-23gdb: introduce objfile text_section_offset and data_section_offset methodsSimon Marchi1-1/+1
The pattern objfile->section_offsets[SECT_OFF_TEXT (objfile)] ... appears very often, to get the offset of the text section of an objfile. I thought it would be more readable to write it as: objfile->text_section_offset () ... so I added this method and used it where possible. I also added data_section_offset, although it is not used as much. gdb/ChangeLog: * objfiles.h (ALL_OBJFILE_OSECTIONS): Move up. (SECT_OFF_DATA): Likewise. (SECT_OFF_RODATA): Likewise. (SECT_OFF_TEXT): Likewise. (SECT_OFF_BSS): Likewise. (struct objfile) <text_section_offset, data_section_offset>: New methods. * amd64-windows-tdep.c (amd64_windows_find_unwind_info): Use objfile::text_section_offset. * coff-pe-read.c (add_pe_forwarded_sym): Likewise. * coffread.c (coff_symtab_read): Likewise. (enter_linenos): Likewise. (process_coff_symbol): Likewise. * ctfread.c (get_objfile_text_range): Likewise. * dtrace-probe.c (dtrace_probe::get_relocated_address): Use objfile::data_section_offset. * dwarf2-frame.c (execute_cfa_program): Use objfile::text_section_offset. (dwarf2_frame_find_fde): Likewise. * dwarf2read.c (create_addrmap_from_index): Likewise. (create_addrmap_from_aranges): Likewise. (dw2_find_pc_sect_compunit_symtab): Likewise. (process_psymtab_comp_unit_reader): Likewise. (add_partial_symbol): Likewise. (add_partial_subprogram): Likewise. (process_full_comp_unit): Likewise. (read_file_scope): Likewise. (read_func_scope): Likewise. (read_lexical_block_scope): Likewise. (read_call_site_scope): Likewise. (dwarf2_rnglists_process): Likewise. (dwarf2_ranges_process): Likewise. (dwarf2_ranges_read): Likewise. (dwarf_decode_lines_1): Likewise. (new_symbol): Likewise. (dwarf2_fetch_die_loc_sect_off): Likewise. (dwarf2_per_cu_text_offset): Likewise. * hppa-bsd-tdep.c (hppabsd_find_global_pointer): Likewise. * hppa-tdep.c (read_unwind_info): Likewise. * ia64-tdep.c (ia64_find_unwind_table): Likewise. * psympriv.h (struct partial_symtab): Likewise. * psymtab.c (find_pc_sect_psymtab): Likewise. * solib-svr4.c (enable_break): Likewise. * stap-probe.c (relocate_address): Use objfile::data_section_offset. * xcoffread.c (enter_line_range): Use objfile::text_section_offset. (read_xcoff_symtab): Likewise.
2020-01-13gdb: add back declarations for _initialize functionsSimon Marchi1-1/+2
I'd like to enable the -Wmissing-declarations warning. However, it warns for every _initialize function, for example: CXX dcache.o /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’: /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations] _initialize_dcache (void) ^~~~~~~~~~~~~~~~~~ The only practical way forward I found is to add back the declarations, which were removed by this commit: commit 481695ed5f6e0a8a9c9c50bfac1cdd2b3151e6c9 Author: John Baldwin <jhb@FreeBSD.org> Date: Sat Sep 9 11:02:37 2017 -0700 Remove unnecessary function prototypes. I don't think it's a big problem to have the declarations for these functions, but if anybody has a better solution for this, I'll be happy to use it. gdb/ChangeLog: * aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration. * aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration. * aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration. * aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration. * aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration. * aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration. * ada-exp.y (_initialize_ada_exp): Add declaration. * ada-lang.c (_initialize_ada_language): Add declaration. * ada-tasks.c (_initialize_tasks): Add declaration. * agent.c (_initialize_agent): Add declaration. * aix-thread.c (_initialize_aix_thread): Add declaration. * alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration. * alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration. * alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration. * alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration. * alpha-tdep.c (_initialize_alpha_tdep): Add declaration. * amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration. * amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration. * amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration. * amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration. * amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration. * amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration. * amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration. * amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration. * amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration. * amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration. * amd64-tdep.c (_initialize_amd64_tdep): Add declaration. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration. * amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration. * annotate.c (_initialize_annotate): Add declaration. * arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration. * arc-tdep.c (_initialize_arc_tdep): Add declaration. * arch-utils.c (_initialize_gdbarch_utils): Add declaration. * arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration. * arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration. * arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration. * arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration. * arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration. * arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration. * arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration. * arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration. * arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration. * arm-tdep.c (_initialize_arm_tdep): Add declaration. * arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration. * auto-load.c (_initialize_auto_load): Add declaration. * auxv.c (_initialize_auxv): Add declaration. * avr-tdep.c (_initialize_avr_tdep): Add declaration. * ax-gdb.c (_initialize_ax_gdb): Add declaration. * bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration. * bfin-tdep.c (_initialize_bfin_tdep): Add declaration. * break-catch-sig.c (_initialize_break_catch_sig): Add declaration. * break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration. * break-catch-throw.c (_initialize_break_catch_throw): Add declaration. * breakpoint.c (_initialize_breakpoint): Add declaration. * bsd-uthread.c (_initialize_bsd_uthread): Add declaration. * btrace.c (_initialize_btrace): Add declaration. * charset.c (_initialize_charset): Add declaration. * cli/cli-cmds.c (_initialize_cli_cmds): Add declaration. * cli/cli-dump.c (_initialize_cli_dump): Add declaration. * cli/cli-interp.c (_initialize_cli_interp): Add declaration. * cli/cli-logging.c (_initialize_cli_logging): Add declaration. * cli/cli-script.c (_initialize_cli_script): Add declaration. * cli/cli-style.c (_initialize_cli_style): Add declaration. * coff-pe-read.c (_initialize_coff_pe_read): Add declaration. * coffread.c (_initialize_coffread): Add declaration. * compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration. * compile/compile.c (_initialize_compile): Add declaration. * complaints.c (_initialize_complaints): Add declaration. * completer.c (_initialize_completer): Add declaration. * copying.c (_initialize_copying): Add declaration. * corefile.c (_initialize_core): Add declaration. * corelow.c (_initialize_corelow): Add declaration. * cp-abi.c (_initialize_cp_abi): Add declaration. * cp-namespace.c (_initialize_cp_namespace): Add declaration. * cp-support.c (_initialize_cp_support): Add declaration. * cp-valprint.c (_initialize_cp_valprint): Add declaration. * cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration. * cris-tdep.c (_initialize_cris_tdep): Add declaration. * csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration. * csky-tdep.c (_initialize_csky_tdep): Add declaration. * ctfread.c (_initialize_ctfread): Add declaration. * d-lang.c (_initialize_d_language): Add declaration. * darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration. * darwin-nat.c (_initialize_darwin_nat): Add declaration. * dbxread.c (_initialize_dbxread): Add declaration. * dcache.c (_initialize_dcache): Add declaration. * disasm-selftests.c (_initialize_disasm_selftests): Add declaration. * disasm.c (_initialize_disasm): Add declaration. * dtrace-probe.c (_initialize_dtrace_probe): Add declaration. * dummy-frame.c (_initialize_dummy_frame): Add declaration. * dwarf-index-cache.c (_initialize_index_cache): Add declaration. * dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration. * dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration. * dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration. * dwarf2expr.c (_initialize_dwarf2expr): Add declaration. * dwarf2loc.c (_initialize_dwarf2loc): Add declaration. * dwarf2read.c (_initialize_dwarf2_read): Add declaration. * elfread.c (_initialize_elfread): Add declaration. * exec.c (_initialize_exec): Add declaration. * extension.c (_initialize_extension): Add declaration. * f-lang.c (_initialize_f_language): Add declaration. * f-valprint.c (_initialize_f_valprint): Add declaration. * fbsd-nat.c (_initialize_fbsd_nat): Add declaration. * fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration. * filesystem.c (_initialize_filesystem): Add declaration. * findcmd.c (_initialize_mem_search): Add declaration. * findvar.c (_initialize_findvar): Add declaration. * fork-child.c (_initialize_fork_child): Add declaration. * frame-base.c (_initialize_frame_base): Add declaration. * frame-unwind.c (_initialize_frame_unwind): Add declaration. * frame.c (_initialize_frame): Add declaration. * frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration. * frv-tdep.c (_initialize_frv_tdep): Add declaration. * ft32-tdep.c (_initialize_ft32_tdep): Add declaration. * gcore.c (_initialize_gcore): Add declaration. * gdb-demangle.c (_initialize_gdb_demangle): Add declaration. * gdb_bfd.c (_initialize_gdb_bfd): Add declaration. * gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration. * gdbarch.c (_initialize_gdbarch): Add declaration. * gdbtypes.c (_initialize_gdbtypes): Add declaration. * gnu-nat.c (_initialize_gnu_nat): Add declaration. * gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration. * gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration. * go-lang.c (_initialize_go_language): Add declaration. * go32-nat.c (_initialize_go32_nat): Add declaration. * guile/guile.c (_initialize_guile): Add declaration. * h8300-tdep.c (_initialize_h8300_tdep): Add declaration. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration. * hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration. * hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration. * hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration. * hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration. * hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration. * hppa-tdep.c (_initialize_hppa_tdep): Add declaration. * i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration. * i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration. * i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration. * i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration. * i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration. * i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration. * i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration. * i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration. * i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration. * i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration. * i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration. * i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration. * i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration. * i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration. * i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration. * i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration. * i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration. * i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration. * i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration. * i386-tdep.c (_initialize_i386_tdep): Add declaration. * i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration. * ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration. * ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration. * ia64-tdep.c (_initialize_ia64_tdep): Add declaration. * ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration. * infcall.c (_initialize_infcall): Add declaration. * infcmd.c (_initialize_infcmd): Add declaration. * inflow.c (_initialize_inflow): Add declaration. * infrun.c (_initialize_infrun): Add declaration. * interps.c (_initialize_interpreter): Add declaration. * iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration. * jit.c (_initialize_jit): Add declaration. * language.c (_initialize_language): Add declaration. * linux-fork.c (_initialize_linux_fork): Add declaration. * linux-nat.c (_initialize_linux_nat): Add declaration. * linux-tdep.c (_initialize_linux_tdep): Add declaration. * linux-thread-db.c (_initialize_thread_db): Add declaration. * lm32-tdep.c (_initialize_lm32_tdep): Add declaration. * m2-lang.c (_initialize_m2_language): Add declaration. * m32c-tdep.c (_initialize_m32c_tdep): Add declaration. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration. * m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration. * m32r-tdep.c (_initialize_m32r_tdep): Add declaration. * m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration. * m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration. * m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration. * m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration. * m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration. * m68k-tdep.c (_initialize_m68k_tdep): Add declaration. * machoread.c (_initialize_machoread): Add declaration. * macrocmd.c (_initialize_macrocmd): Add declaration. * macroscope.c (_initialize_macroscope): Add declaration. * maint-test-options.c (_initialize_maint_test_options): Add declaration. * maint-test-settings.c (_initialize_maint_test_settings): Add declaration. * maint.c (_initialize_maint_cmds): Add declaration. * mdebugread.c (_initialize_mdebugread): Add declaration. * memattr.c (_initialize_mem): Add declaration. * mep-tdep.c (_initialize_mep_tdep): Add declaration. * mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration. * mi/mi-cmds.c (_initialize_mi_cmds): Add declaration. * mi/mi-interp.c (_initialize_mi_interp): Add declaration. * mi/mi-main.c (_initialize_mi_main): Add declaration. * microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration. * microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration. * mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration. * mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration. * mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration. * mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration. * mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration. * mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration. * mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration. * mips-tdep.c (_initialize_mips_tdep): Add declaration. * mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration. * mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration. * mipsread.c (_initialize_mipsread): Add declaration. * mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration. * mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration. * moxie-tdep.c (_initialize_moxie_tdep): Add declaration. * msp430-tdep.c (_initialize_msp430_tdep): Add declaration. * nds32-tdep.c (_initialize_nds32_tdep): Add declaration. * nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration. * nios2-tdep.c (_initialize_nios2_tdep): Add declaration. * nto-procfs.c (_initialize_procfs): Add declaration. * objc-lang.c (_initialize_objc_language): Add declaration. * observable.c (_initialize_observer): Add declaration. * opencl-lang.c (_initialize_opencl_language): Add declaration. * or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration. * or1k-tdep.c (_initialize_or1k_tdep): Add declaration. * osabi.c (_initialize_gdb_osabi): Add declaration. * osdata.c (_initialize_osdata): Add declaration. * p-valprint.c (_initialize_pascal_valprint): Add declaration. * parse.c (_initialize_parse): Add declaration. * ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration. * ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration. * ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration. * ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration. * ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration. * ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration. * ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration. * printcmd.c (_initialize_printcmd): Add declaration. * probe.c (_initialize_probe): Add declaration. * proc-api.c (_initialize_proc_api): Add declaration. * proc-events.c (_initialize_proc_events): Add declaration. * proc-service.c (_initialize_proc_service): Add declaration. * procfs.c (_initialize_procfs): Add declaration. * producer.c (_initialize_producer): Add declaration. * psymtab.c (_initialize_psymtab): Add declaration. * python/python.c (_initialize_python): Add declaration. * ravenscar-thread.c (_initialize_ravenscar): Add declaration. * record-btrace.c (_initialize_record_btrace): Add declaration. * record-full.c (_initialize_record_full): Add declaration. * record.c (_initialize_record): Add declaration. * regcache-dump.c (_initialize_regcache_dump): Add declaration. * regcache.c (_initialize_regcache): Add declaration. * reggroups.c (_initialize_reggroup): Add declaration. * remote-notif.c (_initialize_notif): Add declaration. * remote-sim.c (_initialize_remote_sim): Add declaration. * remote.c (_initialize_remote): Add declaration. * reverse.c (_initialize_reverse): Add declaration. * riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration. * riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration. * riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration. * riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration. * riscv-tdep.c (_initialize_riscv_tdep): Add declaration. * rl78-tdep.c (_initialize_rl78_tdep): Add declaration. * rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration. * rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep): Add declaration. * rs6000-nat.c (_initialize_rs6000_nat): Add declaration. * rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration. * run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration. * rust-exp.y (_initialize_rust_exp): Add declaration. * rx-tdep.c (_initialize_rx_tdep): Add declaration. * s12z-tdep.c (_initialize_s12z_tdep): Add declaration. * s390-linux-nat.c (_initialize_s390_nat): Add declaration. * s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration. * s390-tdep.c (_initialize_s390_tdep): Add declaration. * score-tdep.c (_initialize_score_tdep): Add declaration. * ser-go32.c (_initialize_ser_dos): Add declaration. * ser-mingw.c (_initialize_ser_windows): Add declaration. * ser-pipe.c (_initialize_ser_pipe): Add declaration. * ser-tcp.c (_initialize_ser_tcp): Add declaration. * ser-uds.c (_initialize_ser_socket): Add declaration. * ser-unix.c (_initialize_ser_hardwire): Add declaration. * serial.c (_initialize_serial): Add declaration. * sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration. * sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration. * sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration. * sh-tdep.c (_initialize_sh_tdep): Add declaration. * skip.c (_initialize_step_skip): Add declaration. * sol-thread.c (_initialize_sol_thread): Add declaration. * solib-aix.c (_initialize_solib_aix): Add declaration. * solib-darwin.c (_initialize_darwin_solib): Add declaration. * solib-dsbt.c (_initialize_dsbt_solib): Add declaration. * solib-frv.c (_initialize_frv_solib): Add declaration. * solib-svr4.c (_initialize_svr4_solib): Add declaration. * solib-target.c (_initialize_solib_target): Add declaration. * solib.c (_initialize_solib): Add declaration. * source-cache.c (_initialize_source_cache): Add declaration. * source.c (_initialize_source): Add declaration. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration. * sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration. * sparc-nat.c (_initialize_sparc_nat): Add declaration. * sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration. * sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration. * sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration. * sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration. * sparc-tdep.c (_initialize_sparc_tdep): Add declaration. * sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration. * sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration. * sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration. * sparc64-nat.c (_initialize_sparc64_nat): Add declaration. * sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration. * sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration. * sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration. * sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration. * sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration. * sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration. * stabsread.c (_initialize_stabsread): Add declaration. * stack.c (_initialize_stack): Add declaration. * stap-probe.c (_initialize_stap_probe): Add declaration. * std-regs.c (_initialize_frame_reg): Add declaration. * symfile-debug.c (_initialize_symfile_debug): Add declaration. * symfile-mem.c (_initialize_symfile_mem): Add declaration. * symfile.c (_initialize_symfile): Add declaration. * symmisc.c (_initialize_symmisc): Add declaration. * symtab.c (_initialize_symtab): Add declaration. * target.c (_initialize_target): Add declaration. * target-connection.c (_initialize_target_connection): Add declaration. * target-dcache.c (_initialize_target_dcache): Add declaration. * target-descriptions.c (_initialize_target_descriptions): Add declaration. * thread.c (_initialize_thread): Add declaration. * tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration. * tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration. * tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration. * tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration. * tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration. * tracectf.c (_initialize_ctf): Add declaration. * tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration. * tracefile.c (_initialize_tracefile): Add declaration. * tracepoint.c (_initialize_tracepoint): Add declaration. * tui/tui-hooks.c (_initialize_tui_hooks): Add declaration. * tui/tui-interp.c (_initialize_tui_interp): Add declaration. * tui/tui-layout.c (_initialize_tui_layout): Add declaration. * tui/tui-regs.c (_initialize_tui_regs): Add declaration. * tui/tui-stack.c (_initialize_tui_stack): Add declaration. * tui/tui-win.c (_initialize_tui_win): Add declaration. * tui/tui.c (_initialize_tui): Add declaration. * typeprint.c (_initialize_typeprint): Add declaration. * ui-style.c (_initialize_ui_style): Add declaration. * unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration. * unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration. * unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration. * unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration. * unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration. * unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration. * unittests/filtered_iterator-selftests.c (_initialize_filtered_iterator_selftests): Add declaration. * unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration. * unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration. * unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration. * unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration. * unittests/main-thread-selftests.c (_initialize_main_thread_selftests): Add declaration. * unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration. * unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration. * unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration. * unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration. * unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration. * unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration. * unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration. * unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration. * unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration. * unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration. * unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration. * unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration. * unittests/style-selftests.c (_initialize_style_selftest): Add declaration. * unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration. * unittests/tui-selftests.c (_initialize_tui_selftest): Add declaration. * unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration. * unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration. * unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration. * unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration. * user-regs.c (_initialize_user_regs): Add declaration. * utils.c (_initialize_utils): Add declaration. * v850-tdep.c (_initialize_v850_tdep): Add declaration. * valops.c (_initialize_valops): Add declaration. * valprint.c (_initialize_valprint): Add declaration. * value.c (_initialize_values): Add declaration. * varobj.c (_initialize_varobj): Add declaration. * vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration. * vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration. * vax-tdep.c (_initialize_vax_tdep): Add declaration. * windows-nat.c (_initialize_windows_nat): Add declaration. (_initialize_check_for_gdb_ini): Add declaration. (_initialize_loadable): Add declaration. * windows-tdep.c (_initialize_windows_tdep): Add declaration. * x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration. * x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration. * xcoffread.c (_initialize_xcoffread): Add declaration. * xml-support.c (_initialize_xml_support): Add declaration. * xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration. * xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration. * xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration. * xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration. Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-10Fix handling of null stap semaphoresGeorge Barrett1-3/+4
According to the SystemTap documentation on user-space probes[0], stap probe points without semaphores are denoted by setting the semaphore address in the probe's note to zero. At present the code does do a comparison of the semaphore address against zero, but only after it's been relocated; as such it will (almost?) always fail, commonly resulting in GDB trying to overwrite the ELF magic located at the image's base address. This commit tests the address as specified in the SDT note rather than the relocated value in order to correctly detect absent probe semaphores. [0]: https://sourceware.org/systemtap/wiki/UserSpaceProbeImplementation gdb/Changelog: 2020-01-11 George Barrett <bob@bob131.so> * stap-probe.c (stap_modify_semaphore): Don't check for null semaphores. (stap_probe::set_semaphore, stap_probe::clear_semaphore): Check for null semaphores. gdb/testsuite/ChangeLog: 2020-01-11 George Barrett <bob@bob131.so> * gdb.base/stap-probe.c (relocation_marker): Add dummy variable to help in finding the image relocation offset. * gdb.base/stap-probe.exp (stap_test): Accept arbitrary compile options in arguments. (stap_test_no_debuginfo): Likewise. (stap-probe-nosem-noopt-pie, stap-probe-nosem-noopt-nopie): Add test variants. (stap_test): Add null semaphore relocation test.
2020-01-08Change section_offsets to a std::vectorTom Tromey1-2/+1
This changes section_offsets to be specialization of a std::vector and updates all the users. It also removes the ANOFFSET and SIZEOF_N_SECTION_OFFSETS macros. Most of this is just a generic sort of cleanup, that reduces the number of lines of code. However, a couple spots were doing weird things. objfile_relocate did: - std::vector<struct section_offsets> - new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); ... which seems to greatly over-estimate the number of elements needed. This appeared in set_objfile_default_section_offset: - std::vector<struct section_offsets> offsets (objf->num_sections, - { { offset } }); ... which makes sense due to type safety, but is also actively confusing given that section_offsets was previously also a kind of vector type. Tested on x86-64 Fedora 30. gdb/ChangeLog 2020-01-08 Tom Tromey <tromey@adacore.com> * xcoffread.c (enter_line_range, read_xcoff_symtab) (process_xcoff_symbol, xcoff_symfile_offsets): Update. * symtab.h (MSYMBOL_VALUE_ADDRESS): Update. (struct section_offsets, ANOFFSET, SIZEOF_N_SECTION_OFFSETS): Remove. (section_offsets): New typedef. * symtab.c (fixup_section, get_msymbol_address): Update. * symmisc.c (dump_msymbols): Update. * symfile.h (relative_addr_info_to_section_offsets) (symfile_map_offsets_to_segments): Update. * symfile.c (build_section_addr_info_from_objfile) (init_objfile_sect_indices): Update. (struct place_section_arg): Change type of "offsets". (place_section): Update. (relative_addr_info_to_section_offsets): Change type of "section_offsets". Remove "num_sections" parameter. (default_symfile_offsets, syms_from_objfile_1) (set_objfile_default_section_offset): Update. (reread_symbols): No need to preserve section offsets by hand. (symfile_map_offsets_to_segments): Change type of "offsets". * stap-probe.c (relocate_address): Update. * stabsread.h (process_one_symbol): Update. * solib-target.c (struct lm_info_target) <offsets>: Change type. (solib_target_relocate_section_addresses): Update. * solib-svr4.c (enable_break, svr4_relocate_main_executable): Update. * solib-frv.c (frv_relocate_main_executable): Update. * solib-dsbt.c (dsbt_relocate_main_executable): Update. * solib-aix.c (solib_aix_get_section_offsets): Change return type. (solib_aix_solib_create_inferior_hook): Update. * remote.c (remote_target::get_offsets): Update. * psymtab.c (find_pc_sect_psymtab): Update. * psympriv.h (struct partial_symbol) <address, text_low, text_high>: Update. * objfiles.h (obj_section_offset): Update. (struct objfile) <section_offsets>: Change type. <num_sections>: Remove. (objfile_relocate): Update. * objfiles.c (entry_point_address_query): Update (relocate_one_symbol): Change type of "section_offsets". (objfile_relocate1, objfile_relocate1): Change type of "new_offsets". (objfile_rebase1): Update. * mipsread.c (mipscoff_symfile_read): Update. (read_alphacoff_dynamic_symtab): Remove "section_offsets" parameter. * mdebugread.c (parse_symbol): Change type of "section_offsets". (parse_external, psymtab_to_symtab_1): Update. * machoread.c (macho_symfile_offsets): Update. * ia64-tdep.c (ia64_find_unwind_table): Update. * hppa-tdep.c (read_unwind_info): Update. * hppa-bsd-tdep.c (hppabsd_find_global_pointer): Update. * dwarf2read.c (create_addrmap_from_index) (create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab) (process_psymtab_comp_unit_reader, add_partial_symbol) (add_partial_subprogram, process_full_comp_unit) (read_file_scope, read_func_scope, read_lexical_block_scope) (read_call_site_scope, dwarf2_rnglists_process) (dwarf2_ranges_process, dwarf2_ranges_read) (dwarf_decode_lines_1, var_decode_location, new_symbol) (dwarf2_fetch_die_loc_sect_off, dwarf2_per_cu_text_offset): Update. * dwarf2-frame.c (execute_cfa_program, dwarf2_frame_find_fde): Update. * dtrace-probe.c (dtrace_probe::get_relocated_address): Update. * dbxread.c (read_dbx_symtab, read_ofile_symtab): Update. (process_one_symbol): Change type of "section_offsets". * ctfread.c (get_objfile_text_range): Update. * coffread.c (coff_symtab_read, enter_linenos) (process_coff_symbol): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * amd64-windows-tdep.c (amd64_windows_find_unwind_info): Update. Change-Id: I147eb967e9b44d82f4048039de7bb44b80cd72fb
2020-01-07Add constructor to stap_static_probe_opsTom Tromey1-0/+6
PR build/24937 concerns an error given by the clang provided by a particular version of macOS. In particular, it reports error: default initialization of an object of const type 'const stap_static_probe_ops' without a user-provided default constructor Although (at least according to sources I found online) this was resolved as a bug in the standard, it seemed simple enough to work around this. Given that this is a trivial build fix, I think it should go on the gdb 9 branch as well. gdb/ChangeLog 2020-01-07 Tom Tromey <tromey@adacore.com> PR build/24937: * stap-probe.c (class stap_static_probe_ops): Add constructor. Change-Id: I18f180c17850f420e9b66afc67f9cb3d8dceb0b3
2020-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files.
2019-11-21Adjust byte order variable display/change if DW_AT_endianity is present.Peeter Joot1-4/+3
- Rationale: It is possible for compilers to indicate the desired byte order interpretation of scalar variables using the DWARF attribute: DW_AT_endianity A type flagged with this variable would typically use one of: DW_END_big DW_END_little which instructs the debugger what the desired byte order interpretation of the variable should be. The GCC compiler (as of V6) has a mechanism for setting the desired byte ordering of the fields within a structure or union. For, example, on a little endian target, a structure declared as: struct big { int v; short a[4]; } __attribute__( ( scalar_storage_order( "big-endian" ) ) ); could be used to ensure all the structure members have a big-endian interpretation (the compiler would automatically insert byte swap instructions before and after respective store and load instructions). - To reproduce GCC V8 is required to correctly emit DW_AT_endianity DWARF attributes in all situations when the scalar_storage_order attribute is used. A fix for (dwarf endianity instrumentation) for GCC V6-V7 can be found in the URL field of the following PR: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509 - Test-case: A new test case (testsuite/gdb.base/endianity.*) is included with this patch. Manual testing for mixed endianity code has also been done with GCC V8. See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509#c4 - Observed vs. expected: Without this change, using scalar_storage_order that doesn't match the target, such as struct otherendian { int v; } __attribute__( ( scalar_storage_order( "big-endian" ) ) ); would behave like the following on a little endian target: Breakpoint 1 at 0x401135: file endianity.c, line 41. (gdb) run Starting program: /home/pjoot/freeware/t/a.out Missing separate debuginfos, use: debuginfo-install glibc-2.17-292.el7.x86_64 Breakpoint 1, main () at endianity.c:41 41 struct otherendian o = {3}; (gdb) n 43 do_nothing (&o); /* START */ (gdb) p o $1 = {v = 50331648} (gdb) p /x $2 = {v = 0x3000000} whereas with this gdb enhancement we can access the variable with the user specified endianity: Breakpoint 1, main () at endianity.c:41 41 struct otherendian o = {3}; (gdb) p o $1 = {v = 0} (gdb) n 43 do_nothing (&o); /* START */ (gdb) p o $2 = {v = 3} (gdb) p o.v = 4 $3 = 4 (gdb) p o.v $4 = 4 (gdb) x/4xb &o.v 0x7fffffffd90c: 0x00 0x00 0x00 0x04 (observe that the 4 byte int variable has a big endian representation in the hex dump.) gdb/ChangeLog 2019-11-21 Peeter Joot <peeter.joot@lzlabs.com> Byte reverse display of variables with DW_END_big, DW_END_little (DW_AT_endianity) dwarf attributes if different than the native byte order. * ada-lang.c (ada_value_binop): Use type_byte_order instead of gdbarch_byte_order. * ada-valprint.c (printstr): (ada_val_print_string): * ada-lang.c (value_pointer): (ada_value_binop): Use type_byte_order instead of gdbarch_byte_order. * c-lang.c (c_get_string): Use type_byte_order instead of gdbarch_byte_order. * c-valprint.c (c_val_print_array): Use type_byte_order instead of gdbarch_byte_order. * cp-valprint.c (cp_print_class_member): Use type_byte_order instead of gdbarch_byte_order. * dwarf2loc.c (rw_pieced_value): Use type_byte_order instead of gdbarch_byte_order. * dwarf2read.c (read_base_type): Handle DW_END_big, DW_END_little * f-lang.c (f_get_encoding): Use type_byte_order instead of gdbarch_byte_order. * findvar.c (default_read_var_value): Use type_byte_order instead of gdbarch_byte_order. * gdbtypes.c (check_types_equal): Require matching TYPE_ENDIANITY_NOT_DEFAULT if set. (recursive_dump_type): Print TYPE_ENDIANITY_BIG, and TYPE_ENDIANITY_LITTLE if set. (type_byte_order): new function. * gdbtypes.h (TYPE_ENDIANITY_NOT_DEFAULT): New macro. (struct main_type) <flag_endianity_not_default>: New field. (type_byte_order): New function. * infcmd.c (default_print_one_register_info): Use type_byte_order instead of gdbarch_byte_order. * p-lang.c (pascal_printstr): Use type_byte_order instead of gdbarch_byte_order. * p-valprint.c (pascal_val_print): Use type_byte_order instead of gdbarch_byte_order. * printcmd.c (print_scalar_formatted): Use type_byte_order instead of gdbarch_byte_order. * solib-darwin.c (darwin_current_sos): Use type_byte_order instead of gdbarch_byte_order. * solib-svr4.c (solib_svr4_r_ldsomap): Use type_byte_order instead of gdbarch_byte_order. * stap-probe.c (stap_modify_semaphore): Use type_byte_order instead of gdbarch_byte_order. * target-float.c (target_float_same_format_p): Use type_byte_order instead of gdbarch_byte_order. * valarith.c (scalar_binop): (value_bit_index): Use type_byte_order instead of gdbarch_byte_order. * valops.c (value_cast): Use type_byte_order instead of gdbarch_byte_order. * valprint.c (generic_emit_char): (generic_printstr): (val_print_string): Use type_byte_order instead of gdbarch_byte_order. * value.c (unpack_long): (unpack_bits_as_long): (unpack_value_bitfield): (modify_field): (pack_long): (pack_unsigned_long): Use type_byte_order instead of gdbarch_byte_order. * findvar.c (unsigned_pointer_to_address): (signed_pointer_to_address): (unsigned_address_to_pointer): (address_to_signed_pointer): (default_read_var_value): (default_value_from_register): Use type_byte_order instead of gdbarch_byte_order. * gnu-v3-abi.c (gnuv3_make_method_ptr): Use type_byte_order instead of gdbarch_byte_order. * riscv-tdep.c (riscv_print_one_register_info): Use type_byte_order instead of gdbarch_byte_order. gdb/testsuite/ChangeLog 2019-11-21 Peeter Joot <peeter.joot@lzlabs.com> * gdb.base/endianity.c: New test. * gdb.base/endianity.exp: New file. Change-Id: I4bd98c1b4508c2d7c5a5dbb15d7b7b1cb4e667e2
2019-10-15gdb: Remove vec.{c,h} and update code to not include vec.hAndrew Burgess1-1/+0
Removes vec.c and vec.h from the source tree, and remove all the remaining includes of vec.h. There should be no user visible changes after this commit. I did have a few issues rebuilding GDB after applying this patch due to cached dependencies, I found that running this command in the build directory resolved my build issues without requiring a 'make clean': rm -fr gdb/gdbserver/gdbsupport/.deps/ gdb/ChangeLog: * Makefile.in: Remove references to vec.h and vec.c. * aarch64-tdep.c: No longer include vec.h. * ada-lang.c: Likewise. * ada-lang.h: Likewise. * arm-tdep.c: Likewise. * ax.h: Likewise. * breakpoint.h: Likewise. * charset.c: Likewise. * cp-support.h: Likewise. * dtrace-probe.c: Likewise. * dwarf2read.c: Likewise. * extension.h: Likewise. * gdb_bfd.c: Likewise. * gdbsupport/gdb_vecs.h: Likewise. * gdbsupport/vec.c: Remove. * gdbsupport/vec.h: Remove. * gdbthread.h: Likewise. * guile/scm-type.c: Likewise. * inline-frame.c: Likewise. * machoread.c: Likewise. * memattr.c: Likewise. * memrange.h: Likewise. * namespace.h: Likewise. * nat/linux-btrace.h: Likewise. * osdata.c: Likewise. * parser-defs.h: Likewise. * progspace.h: Likewise. * python/py-type.c: Likewise. * record-btrace.c: Likewise. * rust-exp.y: Likewise. * solib-target.c: Likewise. * stap-probe.c: Likewise. * target-descriptions.c: Likewise. * target-memory.c: Likewise. * target.h: Likewise. * varobj.c: Likewise. * varobj.h: Likewise. * xml-support.h: Likewise. gdb/gdbserver/ChangeLog: * Makefile.in: Remove references to vec.c. Change-Id: I0c91d7170bf1b5e992a387fcd9fe4f2abe343bb5
2019-09-02Use gdbarch for probe::get_argument_countAlan Hayward1-4/+2
The probe function get_argument_count does not need a frame, only the current gdbarch. Switch the code to pass gdbarch instead. No functional changes. gdb/ChangeLog: * break-catch-throw.c (fetch_probe_arguments): Use gdbarch. * dtrace-probe.c (dtrace_probe::get_argument_count): Likewise. * probe.c (probe_safe_evaluate_at_pc) (compute_probe_arg) (compile_probe_arg): Likewise. * probe.h (get_argument_count): Likewise. * solib-svr4.c (solib_event_probe_action): Likewise. * stap-probe.c (stap_probe::get_argument_count): Likewise.
2019-07-17gdb: Remove a non-const reference parameterAndrew Burgess1-7/+8
Non-const reference parameter should be avoided according to the GDB coding standard: https://sourceware.org/gdb/wiki/Internals%20GDB-C-Coding-Standards#Avoid_non-const_reference_parameters.2C_use_pointers_instead This commit updates the gdbarch method gdbarch_stap_adjust_register, and the one implementation i386_stap_adjust_register to avoid using a non-const reference parameter. I've also removed the kfail from the testsuite for bug 24541, as this issue is now resolved. gdb/ChangeLog: PR breakpoints/24541 * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. * gdbarch.sh: Adjust return type and parameter types for 'stap_adjust_register'. (i386_stap_adjust_register): Adjust signature and return new register name. * stap-probe.c (stap_parse_register_operand): Adjust use of 'gdbarch_stap_adjust_register'. gdb/testsuite/ChangeLog: PR breakpoints/24541 * gdb.mi/mi-catch-cpp-exceptions.exp: Remove kfail due to 24541.
2019-07-09Rename common to gdbsupportTom Tromey1-1/+1
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport.
2019-06-28Adjust i386 registers on SystemTap probes' arguments (PR breakpoints/24541)Sergio Durigan Junior1-3/+28
This bug has been reported on PR breakpoints/24541, but it is possible to reproduce it easily by running: make check-gdb TESTS=gdb.base/stap-probe.exp RUNTESTFLAGS='--target_board unix/-m32' The underlying cause is kind of complex, and involves decisions made by GCC and the sys/sdt.h header file about how to represent a probe argument that lives in a register in 32-bit programs. I'll use Andrew's example on the bug to illustrate the problem. libstdc++ has a probe named "throw" with two arguments. On i386, the probe is: stapsdt 0x00000028 NT_STAPSDT (SystemTap probe descriptors) Provider: libstdcxx Name: throw Location: 0x00072c96, Base: 0x00133d64, Semaphore: 0x00000000 Arguments: 4@%si 4@%di I.e., the first argument is an unsigned 32-bit value (represented by the "4@") that lives on %si, and the second argument is an unsigned 32-bit value that lives on %di. Note the discrepancy between the argument size reported by the probe (32-bit) and the register size being used to store the value (16-bit). However, if you take a look at the disassemble of a program that uses this probe, you will see: 00072c80 <__cxa_throw@@CXXABI_1.3>: 72c80: 57 push %edi 72c81: 56 push %esi 72c82: 53 push %ebx 72c83: 8b 74 24 10 mov 0x10(%esp),%esi 72c87: e8 74 bf ff ff call 6ec00 <__cxa_finalize@plt+0x980> 72c8c: 81 c3 74 e3 10 00 add $0x10e374,%ebx 72c92: 8b 7c 24 14 mov 0x14(%esp),%edi 72c96: 90 nop <----------------- PROBE IS HERE 72c97: e8 d4 a2 ff ff call 6cf70 <__cxa_get_globals@plt> 72c9c: 83 40 04 01 addl $0x1,0x4(%eax) 72ca0: 83 ec 04 sub $0x4,%esp 72ca3: ff 74 24 1c pushl 0x1c(%esp) 72ca7: 57 push %edi 72ca8: 56 push %esi 72ca9: e8 62 a3 ff ff call 6d010 <__cxa_init_primary_exception@plt> 72cae: 8d 70 40 lea 0x40(%eax),%esi 72cb1: c7 00 01 00 00 00 movl $0x1,(%eax) 72cb7: 89 34 24 mov %esi,(%esp) 72cba: e8 61 96 ff ff call 6c320 <_Unwind_RaiseException@plt> 72cbf: 89 34 24 mov %esi,(%esp) 72cc2: e8 c9 84 ff ff call 6b190 <__cxa_begin_catch@plt> 72cc7: e8 d4 b3 ff ff call 6e0a0 <_ZSt9terminatev@plt> 72ccc: 66 90 xchg %ax,%ax 72cce: 66 90 xchg %ax,%ax Note how the program is actually using %edi, and not %di, to store the second argument. This is the problem here. GDB will basically read the probe argument, then read the contents of %di, and then cast this value to uint32_t, which causes the wrong value to be obtained. In the gdb.base/stap-probe.exp case, this makes GDB read the wrong memory location, and not be able to display a test string. In Andrew's example, this causes GDB to actually stop at a "catch throw" when it should actually have *not* stopped. After some discussion with Frank Eigler and Jakub Jelinek, it was decided that this bug should be fixed on the client side (i.e., the program that actually reads the probes), and this is why I'm proposing this patch. The idea is simple: we will have a gdbarch method, which, for now, is only used by i386. The generic code that deals with register operands on gdb/stap-probe.c will call this method if it exists, passing the current parse information, the register name and its number. The i386 method will then verify if the register size is greater or equal than the size reported by the stap probe (the "4@" part). If it is, we're fine. Otherwise, it will check if we're dealing with any of the "extendable" registers (like ax, bx, si, di, sp, etc.). If we are, it will change the register name to include the "e" prefix. I have tested the patch here in many scenarios, and it fixes Andrew's bug and also the regressions I mentioned before, on gdb.base/stap-probe.exp. No regressions where found on other tests. Comments? gdb/ChangeLog: 2019-06-27 Sergio Durigan Junior <sergiodj@redhat.com> PR breakpoints/24541 * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. * gdbarch.sh: Add 'stap_adjust_register'. * i386-tdep.c: Include '<unordered_set>'. (i386_stap_adjust_register): New function. (i386_elf_init_abi): Register 'i386_stap_adjust_register'. * stap-probe.c (stap_parse_register_operand): Call 'gdbarch_stap_adjust_register'.
2019-05-16Make stap-probe.c:stap_parse_register_operand's "regname" an std::stringSergio Durigan Junior1-24/+12
This patch simplifies the code of stap-probe.c:stap_parse_register_operand by making "regname" an std::string. No functionality change. I'm this code's maintainer, so I'm pushing this as it's a fairly trivial patch. gdb/ChangeLog: 2019-05-16 Sergio Durigan Junior <sergiodj@redhat.com> * stap-probe.c (stap_parse_register_operand): Make "regname" an "std::string", simplifying the algorithm.
2019-05-16Fix complaint string formatting on stap-probe.cSergio Durigan Junior1-8/+5
I think the string formatting for complaints was messed up by Tom's patch to simplify the complaint mechanism. This small and trivial patch fixes them. Pushed as obvious. gdb/ChangeLog: 2019-05-16 Sergio Durigan Junior <sergiodj@redhat.com> * stap-probe.c (handle_stap_probe): Fix complaint formatting. (stap_static_probe_ops::get_probes): Likewise.
2019-05-16Slightly improve logic of some operations on stap-probe.cSergio Durigan Junior1-11/+10
This patch contains three very small improvement on the logic of some operations we do on stap-probe.c. They don't change what the code does. Pushed as obvious. gdb/ChangeLog: 2019-05-16 Sergio Durigan Junior <sergiodj@redhat.com> * stap-probe.c (stap_parse_register_operand): Make "if (*p->arg == '-')" and "else if". (stap_parse_single_operand): Join checks for "gdbarch_stap_parse_special_token_p" and "gdbarch_stap_parse_special_token" in the same "if" statement. Invert check when verifying for operation on register displacement.
2019-05-16Update some comments on stap-probe.cSergio Durigan Junior1-7/+6
Some functions's comments were not entirely correct on stap-probe.c, so this patch updates them. Pushed as obvious. gdb/ChangeLog: 2019-05-16 Sergio Durigan Junior <sergiodj@redhat.com> * stap-probe.c (stap_get_opcode): Update comment. (stap_get_expected_argument_type): Likewise. (handle_stap_probe): Likewise.
2019-05-16Bool-ify stap-probe.c and stap-related code on i386-tdep.cSergio Durigan Junior1-49/+50
This simple patch converts a bunch of "int"s to "bool" on stap-probe.c and on the stap-related code present on i386-tdep.c. Pushed as obvious (+ I'm the maintainer of this code). gdb/ChangeLog: 2019-05-16 Sergio Durigan Junior <sergiodj@redhat.com> * i386-tdep.c (i386_stap_parse_special_token_triplet): Change return type to 'bool'. Adjust comment. Use 'bool' when appropriate. (i386_stap_parse_special_token_three_arg_disp): Likewise. * stap-probe.c (stap_parse_argument_1): Likewise. (stap_is_operator): Likewise. (stap_is_generic_prefix): Likewise. (stap_is_register_prefix): Likewise. (stap_is_register_indirection_prefix): Likewise. (stap_is_integer_prefix): Likewise. (stap_generic_check_suffix): Likewise. (stap_check_integer_suffix): Likewise. (stap_check_register_suffix): Likewise. (stap_check_register_indirection_suffix): Likewise. (stap_parse_register_operand): Likewise. (stap_parse_single_operand): Likewise. (stap_parse_argument_1): Likewise. (stap_probe::get_argument_count): Likewise. (stap_is_operator): Likewise.
2019-05-08Convert probes to type-safe registry APITom Tromey1-5/+7
This changes the probes code in elfread.c to use the type-safe registry API. While doing this, I saw that the caller of get_probes owns the probes, so I went through the code and changed the vectors to store unique_ptrs, making the ownership relationship more clear. gdb/ChangeLog 2019-05-08 Tom Tromey <tom@tromey.com> * symfile.h (struct sym_probe_fns) <sym_get_probes>: Change type. * symfile-debug.c (debug_sym_get_probes): Change type. * stap-probe.c (handle_stap_probe): (stap_static_probe_ops::get_probes): Change type. * probe.h (class static_probe_ops) <get_probes>: Change type. * probe.c (class any_static_probe_ops) <get_probes>: Change type. (parse_probes_in_pspace): Update. (find_probes_in_objfile, find_probe_by_pc, collect_probes): Update. (any_static_probe_ops::get_probes): Change type. * elfread.c (elfread_data): New typedef. (probe_key): Change type. (elf_get_probes): Likewise. Update. (probe_key_free): Remove. (_initialize_elfread): Update. * dtrace-probe.c (class dtrace_static_probe_ops) <get_probes>: Change type. (dtrace_process_dof_probe, dtrace_process_dof) (dtrace_static_probe_ops::get_probe): Change type.
2019-04-04Remove parser_state "initial_size" parameterTom Tromey1-1/+1
All the real (not test) uses of parser_state pass 10 as the "initial_size" parameter, and it seems to me that there's no real reason to require callers to set this. This patch removes this parameter. gdb/ChangeLog 2019-04-04 Tom Tromey <tom@tromey.com> * dtrace-probe.c (dtrace_probe::build_arg_exprs): Update. * stap-probe.c (stap_parse_argument): Update. * stap-probe.h (struct stap_parse_info) <stap_parse_info>: Remove initial_size parameter. * rust-exp.y (rust_lex_tests): Update. * parse.c (parser_state): Update. (parse_exp_in_context): Update. * parser-defs.h (struct parser_state) <parser_state>: Remove "initial_size" parameter.
2019-01-25Normalize includes to use common/Tom Tromey1-1/+1
This changes all includes to use the form "common/filename.h" rather than just "filename.h". This was written by a script. gdb/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * xtensa-linux-nat.c: Fix common/ includes. * xml-support.h: Fix common/ includes. * xml-support.c: Fix common/ includes. * x86-linux-nat.c: Fix common/ includes. * windows-nat.c: Fix common/ includes. * varobj.h: Fix common/ includes. * varobj.c: Fix common/ includes. * value.c: Fix common/ includes. * valops.c: Fix common/ includes. * utils.c: Fix common/ includes. * unittests/xml-utils-selftests.c: Fix common/ includes. * unittests/utils-selftests.c: Fix common/ includes. * unittests/unpack-selftests.c: Fix common/ includes. * unittests/tracepoint-selftests.c: Fix common/ includes. * unittests/style-selftests.c: Fix common/ includes. * unittests/string_view-selftests.c: Fix common/ includes. * unittests/scoped_restore-selftests.c: Fix common/ includes. * unittests/scoped_mmap-selftests.c: Fix common/ includes. * unittests/scoped_fd-selftests.c: Fix common/ includes. * unittests/rsp-low-selftests.c: Fix common/ includes. * unittests/parse-connection-spec-selftests.c: Fix common/ includes. * unittests/optional-selftests.c: Fix common/ includes. * unittests/offset-type-selftests.c: Fix common/ includes. * unittests/observable-selftests.c: Fix common/ includes. * unittests/mkdir-recursive-selftests.c: Fix common/ includes. * unittests/memrange-selftests.c: Fix common/ includes. * unittests/memory-map-selftests.c: Fix common/ includes. * unittests/lookup_name_info-selftests.c: Fix common/ includes. * unittests/function-view-selftests.c: Fix common/ includes. * unittests/environ-selftests.c: Fix common/ includes. * unittests/copy_bitwise-selftests.c: Fix common/ includes. * unittests/common-utils-selftests.c: Fix common/ includes. * unittests/cli-utils-selftests.c: Fix common/ includes. * unittests/array-view-selftests.c: Fix common/ includes. * ui-file.c: Fix common/ includes. * tui/tui-io.c: Fix common/ includes. * tracepoint.h: Fix common/ includes. * tracepoint.c: Fix common/ includes. * tracefile-tfile.c: Fix common/ includes. * top.h: Fix common/ includes. * top.c: Fix common/ includes. * thread.c: Fix common/ includes. * target/waitstatus.h: Fix common/ includes. * target/waitstatus.c: Fix common/ includes. * target.h: Fix common/ includes. * target.c: Fix common/ includes. * target-memory.c: Fix common/ includes. * target-descriptions.c: Fix common/ includes. * symtab.h: Fix common/ includes. * symfile.c: Fix common/ includes. * stap-probe.c: Fix common/ includes. * spu-linux-nat.c: Fix common/ includes. * sparc-nat.c: Fix common/ includes. * source.c: Fix common/ includes. * solib.c: Fix common/ includes. * solib-target.c: Fix common/ includes. * ser-unix.c: Fix common/ includes. * ser-tcp.c: Fix common/ includes. * ser-pipe.c: Fix common/ includes. * ser-base.c: Fix common/ includes. * selftest-arch.c: Fix common/ includes. * s12z-tdep.c: Fix common/ includes. * rust-exp.y: Fix common/ includes. * rs6000-aix-tdep.c: Fix common/ includes. * riscv-tdep.c: Fix common/ includes. * remote.c: Fix common/ includes. * remote-notif.h: Fix common/ includes. * remote-fileio.h: Fix common/ includes. * remote-fileio.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * record-btrace.c: Fix common/ includes. * python/python.c: Fix common/ includes. * python/py-type.c: Fix common/ includes. * python/py-inferior.c: Fix common/ includes. * progspace.h: Fix common/ includes. * producer.c: Fix common/ includes. * procfs.c: Fix common/ includes. * proc-api.c: Fix common/ includes. * printcmd.c: Fix common/ includes. * ppc-linux-nat.c: Fix common/ includes. * parser-defs.h: Fix common/ includes. * osdata.c: Fix common/ includes. * obsd-nat.c: Fix common/ includes. * nat/x86-linux.c: Fix common/ includes. * nat/x86-linux-dregs.c: Fix common/ includes. * nat/x86-dregs.h: Fix common/ includes. * nat/x86-dregs.c: Fix common/ includes. * nat/ppc-linux.c: Fix common/ includes. * nat/mips-linux-watch.h: Fix common/ includes. * nat/mips-linux-watch.c: Fix common/ includes. * nat/linux-waitpid.c: Fix common/ includes. * nat/linux-ptrace.h: Fix common/ includes. * nat/linux-ptrace.c: Fix common/ includes. * nat/linux-procfs.c: Fix common/ includes. * nat/linux-personality.c: Fix common/ includes. * nat/linux-osdata.c: Fix common/ includes. * nat/linux-namespaces.c: Fix common/ includes. * nat/linux-btrace.h: Fix common/ includes. * nat/linux-btrace.c: Fix common/ includes. * nat/fork-inferior.c: Fix common/ includes. * nat/amd64-linux-siginfo.c: Fix common/ includes. * nat/aarch64-sve-linux-ptrace.c: Fix common/ includes. * nat/aarch64-linux.c: Fix common/ includes. * nat/aarch64-linux-hw-point.h: Fix common/ includes. * nat/aarch64-linux-hw-point.c: Fix common/ includes. * namespace.h: Fix common/ includes. * mips-linux-tdep.c: Fix common/ includes. * minsyms.c: Fix common/ includes. * mi/mi-parse.h: Fix common/ includes. * mi/mi-main.c: Fix common/ includes. * mi/mi-cmd-env.c: Fix common/ includes. * memrange.h: Fix common/ includes. * memattr.c: Fix common/ includes. * maint.h: Fix common/ includes. * maint.c: Fix common/ includes. * main.c: Fix common/ includes. * machoread.c: Fix common/ includes. * location.c: Fix common/ includes. * linux-thread-db.c: Fix common/ includes. * linux-nat.c: Fix common/ includes. * linux-fork.c: Fix common/ includes. * inline-frame.c: Fix common/ includes. * infrun.c: Fix common/ includes. * inflow.c: Fix common/ includes. * inferior.h: Fix common/ includes. * inferior.c: Fix common/ includes. * infcmd.c: Fix common/ includes. * inf-ptrace.c: Fix common/ includes. * inf-child.c: Fix common/ includes. * ia64-linux-nat.c: Fix common/ includes. * i387-tdep.c: Fix common/ includes. * i386-tdep.c: Fix common/ includes. * i386-linux-tdep.c: Fix common/ includes. * i386-linux-nat.c: Fix common/ includes. * i386-go32-tdep.c: Fix common/ includes. * i386-fbsd-tdep.c: Fix common/ includes. * i386-fbsd-nat.c: Fix common/ includes. * guile/scm-type.c: Fix common/ includes. * guile/guile.c: Fix common/ includes. * go32-nat.c: Fix common/ includes. * gnu-nat.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbarch-selftests.c: Fix common/ includes. * gdb_usleep.c: Fix common/ includes. * gdb_select.h: Fix common/ includes. * gdb_bfd.c: Fix common/ includes. * gcore.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * findvar.c: Fix common/ includes. * fbsd-nat.c: Fix common/ includes. * event-top.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * dwarf2read.c: Fix common/ includes. * dwarf2loc.c: Fix common/ includes. * dwarf2-frame.c: Fix common/ includes. * dwarf-index-cache.c: Fix common/ includes. * dtrace-probe.c: Fix common/ includes. * disasm-selftests.c: Fix common/ includes. * defs.h: Fix common/ includes. * csky-tdep.c: Fix common/ includes. * cp-valprint.c: Fix common/ includes. * cp-support.h: Fix common/ includes. * cp-support.c: Fix common/ includes. * corelow.c: Fix common/ includes. * completer.h: Fix common/ includes. * completer.c: Fix common/ includes. * compile/compile.c: Fix common/ includes. * compile/compile-loc2c.c: Fix common/ includes. * compile/compile-cplus-types.c: Fix common/ includes. * compile/compile-cplus-symbols.c: Fix common/ includes. * command.h: Fix common/ includes. * cli/cli-dump.c: Fix common/ includes. * cli/cli-cmds.c: Fix common/ includes. * charset.c: Fix common/ includes. * build-id.c: Fix common/ includes. * btrace.h: Fix common/ includes. * btrace.c: Fix common/ includes. * breakpoint.h: Fix common/ includes. * breakpoint.c: Fix common/ includes. * ax.h: (enum agent_op): Fix common/ includes. * ax-general.c (struct aop_map): Fix common/ includes. * ax-gdb.c: Fix common/ includes. * auxv.c: Fix common/ includes. * auto-load.c: Fix common/ includes. * arm-tdep.c: Fix common/ includes. * arch/riscv.c: Fix common/ includes. * arch/ppc-linux-common.c: Fix common/ includes. * arch/i386.c: Fix common/ includes. * arch/arm.c: Fix common/ includes. * arch/arm-linux.c: Fix common/ includes. * arch/arm-get-next-pcs.c: Fix common/ includes. * arch/amd64.c: Fix common/ includes. * arch/aarch64.c: Fix common/ includes. * arch/aarch64-insn.c: Fix common/ includes. * arch-utils.c: Fix common/ includes. * amd64-windows-tdep.c: Fix common/ includes. * amd64-tdep.c: Fix common/ includes. * amd64-sol2-tdep.c: Fix common/ includes. * amd64-obsd-tdep.c: Fix common/ includes. * amd64-nbsd-tdep.c: Fix common/ includes. * amd64-linux-tdep.c: Fix common/ includes. * amd64-linux-nat.c: Fix common/ includes. * amd64-fbsd-tdep.c: Fix common/ includes. * amd64-fbsd-nat.c: Fix common/ includes. * amd64-dicos-tdep.c: Fix common/ includes. * amd64-darwin-tdep.c: Fix common/ includes. * agent.c: Fix common/ includes. * ada-lang.h: Fix common/ includes. * ada-lang.c: Fix common/ includes. * aarch64-tdep.c: Fix common/ includes. gdb/gdbserver/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * win32-low.c: Fix common/ includes. * win32-i386-low.c: Fix common/ includes. * tracepoint.c: Fix common/ includes. * thread-db.c: Fix common/ includes. * target.h: Fix common/ includes. * symbol.c: Fix common/ includes. * spu-low.c: Fix common/ includes. * server.h: Fix common/ includes. * server.c: Fix common/ includes. * remote-utils.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * nto-x86-low.c: Fix common/ includes. * notif.h: Fix common/ includes. * mem-break.h: Fix common/ includes. * lynx-low.c: Fix common/ includes. * lynx-i386-low.c: Fix common/ includes. * linux-x86-tdesc-selftest.c: Fix common/ includes. * linux-x86-low.c: Fix common/ includes. * linux-low.c: Fix common/ includes. * inferiors.h: Fix common/ includes. * i387-fp.c: Fix common/ includes. * hostio.c: Fix common/ includes. * hostio-errno.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbreplay.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * ax.c: (enum gdb_agent_op): Fix common/ includes.
2019-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files.
2018-12-21Fix compile error with clang 3.8Dave Murphy1-1/+1
When compiling with clang 3.8 (default clang version on Debian Stretch, the current stable), we get errors like this: CXX dtrace-probe.o ../../binutils-gdb/gdb/dtrace-probe.c:103:31: error: default initialization of an object of const type 'const dtrace_static_probe_ops' without a user-provided default constructor const dtrace_static_probe_ops dtrace_static_probe_ops; ^ Silence them by value-initializing those objects. It's not necessary with other compilers (later clang versions, gcc), but it shouldn't hurt either.
2018-05-23Remove symfile_complaintsTom Tromey1-4/+4
The complaint system seems to allow for multiple different complaint topics. However, in practice only symfile_complaints has ever been defined. Seeing that complaints.c dates to 1992, and that no new complaints have been added in the intervening years, I think it is reasonable to admit that complaints are specifically related to debuginfo reading. This patch removes symfile_complaints and updates all the callers. Some of these spots should perhaps be calls to warning instead, but I did not make that change. gdb/ChangeLog 2018-05-23 Tom Tromey <tom@tromey.com> * complaints.c (symfile_complaints): Remove. (complaint_internal): Remove "complaints" parameter. (clear_complaints, vcomplaint): Remove "c" parameter. (get_complaints): Remove. * dwarf2read.c (dwarf2_statement_list_fits_in_line_number_section_complaint) (dwarf2_debug_line_missing_file_complaint) (dwarf2_debug_line_missing_end_sequence_complaint) (dwarf2_complex_location_expr_complaint) (dwarf2_const_value_length_mismatch_complaint) (dwarf2_section_buffer_overflow_complaint) (dwarf2_macro_malformed_definition_complaint) (dwarf2_invalid_attrib_class_complaint) (create_addrmap_from_index, dw2_symtab_iter_next) (dw2_expand_marked_cus) (dw2_debug_names_iterator::find_vec_in_debug_names) (dw2_debug_names_iterator::next, dw2_debug_names_iterator::next) (create_debug_type_hash_table, init_cutu_and_read_dies) (partial_die_parent_scope, add_partial_enumeration) (skip_one_die, fixup_go_packaging, quirk_rust_enum, process_die) (dwarf2_compute_name, dwarf2_physname, read_namespace_alias) (read_import_statement, read_file_scope, create_dwo_cu_reader) (create_cus_hash_table, create_dwp_hash_table) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_rnglists_process, dwarf2_ranges_process) (dwarf2_add_type_defn, dwarf2_attach_fields_to_type) (dwarf2_add_member_fn, get_alignment, maybe_set_alignment) (handle_struct_member_die, process_structure_scope) (read_array_type, read_common_block, read_module_type) (read_tag_pointer_type, read_typedef, read_base_type) (read_subrange_type, load_partial_dies, partial_die_info::read) (partial_die_info::read, partial_die_info::read) (partial_die_info::read, read_checked_initial_length_and_offset) (dwarf2_string_attr, read_formatted_entries) (dwarf_decode_line_header) (lnp_state_machine::check_line_address, dwarf_decode_lines_1) (new_symbol, dwarf2_const_value_attr, lookup_die_type) (read_type_die_1, determine_prefix, dwarf2_get_ref_die_offset) (dwarf2_get_attr_constant_value, dwarf2_fetch_constant_bytes) (get_signatured_type, get_DW_AT_signature_type) (decode_locdesc, file_file_name, consume_improper_spaces) (skip_form_bytes, skip_unknown_opcode, dwarf_parse_macro_header) (dwarf_decode_macro_bytes, dwarf_decode_macros) (dwarf2_symbol_mark_computed, set_die_type) (read_attribute_value): Update. * stap-probe.c (handle_stap_probe, get_stap_base_address): Update. * dbxread.c (unknown_symtype_complaint) (lbrac_mismatch_complaint, repeated_header_complaint) (set_namestring, function_outside_compilation_unit_complaint) (read_dbx_symtab, process_one_symbol): Update. * gdbtypes.c (stub_noname_complaint): Update. * windows-nat.c (handle_unload_dll): Update. * coffread.c (coff_symtab_read, enter_linenos, decode_type) (decode_base_type): Update. * xcoffread.c (bf_notfound_complaint, ef_complaint) (eb_complaint, record_include_begin, record_include_end) (enter_line_range, xcoff_next_symbol_text, read_xcoff_symtab) (process_xcoff_symbol, read_symbol) (function_outside_compilation_unit_complaint) (scan_xcoff_symtab): Update. * machoread.c (macho_symtab_read, macho_add_oso_symfile): Update. * buildsym.c (finish_block_internal, make_blockvector) (end_symtab_get_static_block, augment_type_symtab): Update. * dtrace-probe.c (dtrace_process_dof) (dtrace_static_probe_ops::get_probes): Update. * complaints.h (struct complaint): Don't declare. (symfile_complaints): Remove. (complaint_internal): Remove "complaints" parameter. (complaint): Likewise. (clear_complaints): Likewise. * symfile.c (syms_from_objfile_1, finish_new_objfile) (reread_symbols): Update. * dwarf2-frame.c (dwarf2_restore_rule, execute_cfa_program) (dwarf2_frame_cache, decode_frame_entry): Update. * dwarf2loc.c (dwarf_reg_to_regnum): Update. * objc-lang.c (lookup_objc_class, lookup_child_selector) (info_selectors_command): Update. * macrotab.c (macro_include, check_for_redefinition) (macro_undef): Update. * objfiles.c (filter_overlapping_sections): Update. * stabsread.c (invalid_cpp_abbrev_complaint) (reg_value_complaint, stabs_general_complaint, dbx_lookup_type) (define_symbol, error_type, read_type, rs6000_builtin_type) (stabs_method_name_from_physname, read_member_functions) (read_cpp_abbrev, read_baseclasses, read_tilde_fields) (attach_fields_to_type, complain_about_struct_wipeout) (read_range_type, read_args, common_block_start) (common_block_end, cleanup_undefined_types_1, scan_file_globals): Update. * mdebugread.c (index_complaint, unknown_ext_complaint) (basic_type_complaint, bad_tag_guess_complaint) (bad_rfd_entry_complaint, unexpected_type_code_complaint) (reg_value_complaint, parse_symbol, parse_type, upgrade_type) (parse_procedure, parse_lines) (function_outside_compilation_unit_complaint) (parse_partial_symbols, psymtab_to_symtab_1, cross_ref) (bad_tag_guess_complaint, reg_value_complaint): Update. * cp-support.c (demangled_name_complaint): Update. * macroscope.c (sal_macro_scope): Update. * dwarf-index-write.c (class debug_names): Update. gdb/testsuite/ChangeLog 2018-05-23 Tom Tromey <tom@tromey.com> * gdb.gdb/complaints.exp (test_initial_complaints): Don't mention symfile_complaints. (test_short_complaints): Likewise. (test_empty_complaints): Likewise. (test_initial_complaints): Update.
2018-01-02Update copyright year range in all GDB filesJoel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files
2017-12-30C++-ify parser_stateTom Tromey1-17/+3
This mildly C++-ifies parser_state and stap_parse_info -- just enough to remove some cleanups. This version includes the changes implemented by Simon. Regression tested by the buildbot. gdb/ChangeLog 2017-12-30 Tom Tromey <tom@tromey.com> Simon Marchi <simon.marchi@ericsson.com> * stap-probe.h (struct stap_parse_info): Add constructor, destructor. * stap-probe.c (stap_parse_argument): Update. * rust-exp.y (rust_lex_tests): Update. * parser-defs.h (struct parser_state): Add constructor, destructor, release method. <expout>: Change type to expression_up. (null_post_parser): Change type. (initialize_expout, reallocate_expout): Remove. * parse.c (parser_state::parser_state): Rename from initialize_expout. (parser_state::release): Rename from reallocate_expout. (write_exp_elt, parse_exp_in_context_1, increase_expout_size): Update. (null_post_parser): Change type of "exp". * dtrace-probe.c (dtrace_probe::build_arg_exprs): Update. * ada-lang.c (resolve, resolve_subexp) (replace_operator_with_call): Change type of "expp". * language.h (struct language_defn) <la_post_parser>: Change type of "expp".
2017-11-25Fix PR gdb/22491: Regression when setting SystemTap probe semaphoresSergio Durigan Junior1-4/+12
Pedro has kindly pointed out that gdb.arch/amd64-stap-optional-prefix.exp was failing after my C++-ification patches touching the probe interface. The failure is kind of cryptic: 77 break -pstap bar 78 Breakpoint 3 at 0x40048d 79 (gdb) PASS: gdb.arch/amd64-stap-optional-prefix.exp: bar: break -pstap bar 80 continue 81 Continuing. 82 83 Program received signal SIGILL, Illegal instruction. 84 main () at amd64-stap-optional-prefix.S:26 85 26 STAP_PROBE1(probe, foo, (%rsp)) It took me a while to figure out where this SIGILL is coming from. Initially I thought it was something related to writing registers to the inferior when dealing with probe arguments, but I discarded this since the arguments were not touching any registers. In the end, this was a mistake that was introduced during the review process of the patch. When setting/clearing a SystemTap probe's semaphore, the code was using 'm_address' (which refers the probe's address) instead of 'm_sem_addr' (which refers to the semaphore's address). This caused GDB to write a bogus value in the wrong memory position, which in turn caused the SIGILL. I am pushing this patch to correct the mistake. On a side note: I told Pedro that the BuildBot hadn't caught the failure during my try build, and for a moment there was a suspicion that the BuildBot might be at fault here. However, I investigate this and noticed that I only did one try build, with a patch that was correctly using 'm_sem_addr' where applicable, and therefore no failure should have happened indeed. I probably should have requested another try build after addressing the review's comments, but they were mostly basic and I didn't think it was needed. Oh, well. 2017-11-25 Sergio Durigan Junior <sergiodj@redhat.com> PR gdb/22491 * stap-probe.c (relocate_address): New function. (stap_probe::get_relocated_address): Use 'relocate_address'. (stap_probe::set_semaphore): Use 'relocate_address' and pass 'm_sem_addr'. (stap_probe::clear_semaphore): Likewise.
2017-11-22Convert SystemTap probe interface to C++ (and perform some cleanups)Sergio Durigan Junior1-273/+261
This patch converts the SystemTap probe interface (gdb/stap-probe.[ch]) to C++, and also performs some cleanups that were on my TODO list for a while. The main changes were the conversion of 'struct stap_probe' to 'class stap_probe', and a new 'class stap_static_probe_ops' to replace the use of 'stap_probe_ops'. Both classes implement the virtual methods exported by their parents, 'class probe' and 'class static_probe_ops', respectively. I believe it's now a bit simpler to understand the logic behind the stap-probe interface. There are several helper functions used to parse parts of a stap probe, and since they are generic and don't need to know about the probe they're working on, I decided to leave them as simple static functions (instead of e.g. converting them to class methods). I've also converted a few uses of "VEC" to "std::vector", which makes the code simpler and easier to maintain. And, as usual, some cleanups here and there. Even though I'm sending a series of patches, they need to be tested and committed as a single unit, because of inter-dependencies. But it should be easier to review in separate logical units. I've regtested this patch on BuildBot, no regressions found. gdb/ChangeLog: 2017-11-22 Sergio Durigan Junior <sergiodj@redhat.com> Simon Marchi <simark@simark.ca> * stap-probe.c (struct probe_ops stap_probe_ops): Delete variable. (struct stap_probe_arg) <stap_probe_arg>: New constructor. <aexpr>: Change type to 'expression_up'. (stap_probe_arg_s): Delete type and VEC. (struct stap_probe): Delete. Replace by... (class stap_static_probe_ops): ...this and... (class stap_probe): ...this. Rename variables to add 'm_' prefix. Do not use 'union' for arguments anymore. (stap_get_expected_argument_type): Receive probe name instead of 'struct stap_probe'. Adjust code. (stap_parse_probe_arguments): Rename to... (stap_probe::parse_arguments): ...this. Adjust code to reflect change. (stap_get_probe_address): Rename to... (stap_probe::get_relocated_address): ...this. Adjust code to reflect change. (stap_get_probe_argument_count): Rename to... (stap_probe::get_argument_count): ...this. Adjust code to reflect change. (stap_get_arg): Rename to... (stap_probe::get_arg_by_number'): ...this. Adjust code to reflect change. (can_evaluate_probe_arguments): Rename to... (stap_probe::can_evaluate_arguments): ...this. Adjust code to reflect change. (stap_evaluate_probe_argument): Rename to... (stap_probe::evaluate_argument): ...this. Adjust code to reflect change. (stap_compile_to_ax): Rename to... (stap_probe::compile_to_ax): ...this. Adjust code to reflect change. (stap_probe_destroy): Delete. (stap_modify_semaphore): Adjust comment. (stap_set_semaphore): Rename to... (stap_probe::set_semaphore): ...this. Adjust code to reflect change. (stap_clear_semaphore): Rename to... (stap_probe::clear_semaphore): ...this. Adjust code to reflect change. (stap_probe::get_static_ops): New method. (handle_stap_probe): Adjust code to create instance of 'stap_probe'. (stap_get_probes): Rename to... (stap_static_probe_ops::get_probes): ...this. Adjust code to reflect change. (stap_probe_is_linespec): Rename to... (stap_static_probe_ops::is_linespec): ...this. Adjust code to reflect change. (stap_type_name): Rename to... (stap_static_probe_ops::type_name): ...this. Adjust code to reflect change. (stap_gen_info_probes_table_header): Rename to... (stap_static_probe_ops::gen_info_probes_table_header): ...this. Adjust code to reflect change. (stap_gen_info_probes_table_values): Rename to... (stap_probe::gen_info_probes_table_values): ...this. Adjust code to reflect change. (struct probe_ops stap_probe_ops): Delete. (info_probes_stap_command): Use 'info_probes_for_spops' instead of 'info_probes_for_ops'. (_initialize_stap_probe): Use 'all_static_probe_ops' instead of 'all_probe_ops'.