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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.
2022-10-19internal_error: remove need to pass __FILE__/__LINE__Pedro Alves1-1/+1
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
2022-09-24gdb/source.c: Fix undefined behaviour dereferencing empty stringMagne Hov1-9/+1
When a source file's dirname is solely made up of directory separators we end up trying to dereference the last character of an empty string with std::string::back, which results in undefined behaviour. A typical use case where this can happen is when the root directory "/" is used as a compilation directory. With libstdc++.so.6.0.28 we get no out-of-bounds checks and the byte preceding the storage of the empty string is returned. The character value of this byte depends on heap implementation and usage, but when this byte happens to hold the value of the directory separator character we go on to call std::string::pop_back on the empty string which results in an out_of_range exception which terminates GDB. Fix this by using path_join. prepare_path_for_appending ensures that the filename component is relative. The testsuite has been run before and after the change and no regressions were found.
2022-08-03Use gdb_bfd_ref_ptr in objfileTom Tromey1-1/+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.
2022-07-28Rewrite registry.hTom Tromey1-1/+2
This rewrites registry.h, removing all the macros and replacing it with relatively ordinary template classes. The result is less code than the previous setup. It replaces large macros with a relatively straightforward C++ class, and now manages its own cleanup. The existing type-safe "key" class is replaced with the equivalent template class. This approach ended up requiring relatively few changes to the users of the registry code in gdb -- code using the key system just required a small change to the key's declaration. All existing users of the old C-like API are now converted to use the type-safe API. This mostly involved changing explicit deletion functions to be an operator() in a deleter class. The old "save/free" two-phase process is removed, and replaced with a single "free" phase. No existing code used both phases. The old "free" callbacks took a parameter for the enclosing container object. However, this wasn't truly needed and is removed here as well.
2022-04-20Replace symbol_symtab with symbol::symtabTom Tromey1-1/+1
This turns symbol_symtab into a method on symbol. It also replaces symbol_set_symtab with a method.
2022-04-18gdbsupport: make gdb_abspath return an std::stringSimon Marchi1-8/+11
I'm trying to switch these functions to use std::string instead of char arrays, as much as possible. Some callers benefit from it (can avoid doing a copy of the result), while others suffer (have to make one more copy). Change-Id: Iced49b8ee2f189744c5072a3b217aab5af17a993
2022-04-07gdb: remove symtab::pspaceSimon Marchi1-1/+1
Same idea as previous patch, but for symtab::pspace. Change-Id: I1023abe622bea75ef648c6a97a01b53775d4104d
2022-04-07gdb: remove symtab::objfileSimon Marchi1-1/+1
Same idea as previous patch, but for symtab::objfile. I find it clearer without this wrapper, as it shows that the objfile is common to all symtabs of a given compunit. Otherwise, you could think that each symtab (of a given compunit) can have a specific objfile. Change-Id: Ifc0dbc7ec31a06eefa2787c921196949d5a6fcc6
2022-04-07gdb: remove symtab::dirnameSimon Marchi1-7/+8
I think the symtab::dirname method is bogus, or at least very misleading. It makes you think that it returns the directory that was used to find that symtab's file during compilation (i.e. the directory the file refers to in the DWARF line header file table), or the directory part of the symtab's filename maybe. In fact, it returns the compilation unit's directory, which is the CWD of the compiler, at compilation time. At least for DWARF, if the symtab's filename is relative, it will be relative to that directory. But if the symtab's filename is absolute, then the directory returned by symtab::dirname has nothing to do with the symtab's filename. Remove symtab::dirname to avoid this confusion, change all users to fetch the same information through the compunit. At least, it will be clear that this is a compunit property, not a symtab property. Change-Id: I2894c3bf3789d7359a676db3c58be2c10763f5f0
2022-03-31Remove dbx modeTom Tromey1-3/+0
This patch removes gdb's dbx mode. Regression tested on x86-64 Fedora 34.
2022-03-29Unify gdb printf functionsTom Tromey1-46/+46
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.
2022-03-29Unify gdb puts functionsTom Tromey1-3/+3
Now that filtered and unfiltered output can be treated identically, we can unify the puts family of functions. This is done under the name "gdb_puts". Most of this patch was written by script.
2022-02-06gdb: remove SYMBOL_CLASS macro, add getterSimon Marchi1-1/+1
Change-Id: I83211d5a47efc0564386e5b5ea4a29c00b1fd46a
2022-02-06gdb: remove SYMTAB_DIRNAME macroSimon Marchi1-7/+7
Remove the macro, replace with an equivalent method. Change-Id: I46ec36b91bb734331138eb9cd086b2db01635aed
2022-02-06gdb: remove SYMTAB_PSPACE macroSimon Marchi1-1/+1
Remove the macro, replace with an equivalent method. Change-Id: Icccc20e7e8ae03ac4dac1c7514c25a12a9a0ac69
2022-02-06gdb: remove SYMTAB_OBJFILE macroSimon Marchi1-1/+1
Remove the macro, replace with an equivalent method. Change-Id: I8f9ecd290ad28502e53c1ceca5006ba78bf042eb
2022-02-06gdb: remove SYMTAB_LANGUAGE macro, add getter/setterSimon Marchi1-1/+2
Add a getter and a setter for a symtab's language. Remove the corresponding macro and adjust all callers. Change-Id: I9f4d840b11c19f80f39bac1bce020fdd1739e11f
2022-02-06gdb: remove SYMTAB_COMPUNIT macro, add getter/setterSimon Marchi1-3/+3
Add a getter and a setter for a symtab's compunit_symtab. Remove the corresponding macro and adjust all callers. For brevity, I chose the name "compunit" instead of "compunit_symtab" the the field, getter and setter names. Since we are already in symtab context, the _symtab suffix seems redundant. Change-Id: I4b9b731c96e3594f7733e75af1e3d01bc0e4fe92
2022-02-06gdb: remove COMPUNIT_MACRO_TABLE macro, add getter/setterSimon Marchi1-2/+2
Add a getter and a setter for a compunit_symtab's macro table. Remove the corresponding macro and adjust all callers. Change-Id: I00615ea72d5ac43d9a865e941cb2de0a979c173a
2022-02-06gdb: remove COMPUNIT_PRODUCER macro, add getter/setterSimon Marchi1-2/+2
Add a getter and a setter for a compunit_symtab's producer. Remove the corresponding macro and adjust all callers. Change-Id: Ia1d6d8a0e247a08a21af23819d71e49b37d8931b
2022-02-06gdb: remove COMPUNIT_DEBUGFORMAT macro, add getter/setterSimon Marchi1-1/+1
Add a getter and a setter for a compunit_symtab's debugformat. Remove the corresponding macro and adjust all callers. Change-Id: I1667b02d5322346f8e23abd9f8a584afbcd75975
2022-02-06gdb: move compunit_filetabs to compunit_symtab::filetabsSimon Marchi1-2/+2
Make compunit_filetabs, used to iterate a compunit_symtab's filetabs, a method of compunit_symtab. The name filetabs conflicts with the current name of the field. Rename the field to m_filetabs, since at this point nothing outside of compunit_symtab uses it, so we should treat it as private (even though it's not actually private). Rename the last_filetab field to m_last_filetab as well (it's only used on compunit_symtab::add_filetab). Adjust the COMPUNIT_FILETABS macro to keep its current behavior of returning the first filetab. Change-Id: I537b553a44451c52d24b18ee1bfa47e23747cfc3
2022-02-06gdb: remove COMPUNIT_OBJFILE macroSimon Marchi1-1/+1
Remove the macro, update all users to use the getter directly. Change-Id: I3f0fd6f4455d1c4ebd5da73b561eb18a979ef1f6
2022-01-26Always call the wrap_here methodTom Tromey1-5/+5
This changes all existing calls to wrap_here to call the method on the appropriate ui_file instead. The choice of ui_file is determined by context.
2022-01-26Convert wrap_here to use integer parameterTom Tromey1-5/+5
I think it only really makes sense to call wrap_here with an argument consisting solely of spaces. Given this, it seemed better to me that the argument be an int, rather than a string. This patch is the result. Much of it was written by a script.
2022-01-18Move gdb_regex to gdbsupportTom Tromey1-1/+1
This moves the gdb_regex convenience class to gdbsupport.
2022-01-18Move gdb_argv to gdbsupportTom Tromey1-0/+1
This moves the gdb_argv class to a new header in gdbsupport.
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.
2021-12-29Consistently Use ui_file parameter to show callbacksTom Tromey1-6/+6
I happened to notice that one "show" callback was printing to gdb_stdout rather than to the passed-in ui_file parameter. I went through all such callbacks and fixed them to consistently use the ui_file. Regression tested on x86-64 Fedora 34.
2021-12-12C++-ify path substitution codeTom Tromey1-120/+53
I found some uses of xfree in the path substitution code in source.c. C++-ifying struct substitute_path_rule both simplifies the code and removes manual memory management. Regression tested on x86-64 Fedora 34.
2021-12-07Fix bug in source.c changeTom Tromey1-2/+2
My earlier change to source.c ("Remove an xfree from add_path") introduced a regression. This patch fixes the problem.
2021-12-07Remove an xfree from add_pathTom Tromey1-9/+4
This removes a temporary \0 assignment and an xfree from add_path, replacing it with a simpler use of std::string.
2021-10-03gdb: make string-like set show commands use std::string variableSimon Marchi1-28/+38
String-like settings (var_string, var_filename, var_optional_filename, var_string_noescape) currently take a pointer to a `char *` storage variable (typically global) that holds the setting's value. I'd like to "mordernize" this by changing them to use an std::string for storage. An obvious reason is that string operations on std::string are often easier to write than with C strings. And they avoid having to do any manual memory management. Another interesting reason is that, with `char *`, nullptr and an empty string often both have the same meaning of "no value". String settings are initially nullptr (unless initialized otherwise). But when doing "set foo" (where `foo` is a string setting), the setting now points to an empty string. For example, solib_search_path is nullptr at startup, but points to an empty string after doing "set solib-search-path". This leads to some code that needs to check for both to check for "no value". Or some code that converts back and forth between NULL and "" when getting or setting the value. I find this very error-prone, because it is very easy to forget one or the other. With std::string, we at least know that the variable is not "NULL". There is only one way of representing an empty string setting, that is with an empty string. I was wondering whether the distinction between NULL and "" would be important for some setting, but it doesn't seem so. If that ever happens, it would be more C++-y and self-descriptive to use optional<string> anyway. Actually, there's one spot where this distinction mattered, it's in init_history, for the test gdb.base/gdbinit-history.exp. init_history sets the history filename to the default ".gdb_history" if it sees that the setting was never set - if history_filename is nullptr. If history_filename is an empty string, it means the setting was explicitly cleared, so it leaves it as-is. With the change to std::string, this distinction doesn't exist anymore. This can be fixed by moving the code that chooses a good default value for history_filename to _initialize_top. This is ran before -ex commands are processed, so an -ex command can then clear that value if needed (what gdb.base/gdbinit-history.exp tests). Another small improvement, in my opinion is that we can now easily give string parameters initial values, by simply initializing the global variables, instead of xstrdup-ing it in the _initialize function. In Python and Guile, when registering a string-like parameter, we allocate (with new) an std::string that is owned by the param_smob (in Guile) and the parmpy_object (in Python) objects. This patch started by changing all relevant add_setshow_* commands to take an `std::string *` instead of a `char **` and fixing everything that failed to build. That includes of course all string setting variable and their uses. string_option_def now uses an std::string also, because there's a connection between options and settings (see add_setshow_cmds_for_options). The add_path function in source.c is really complex and twisted, I'd rather not try to change it to work on an std::string right now. Instead, I added an overload that copies the std:string to a `char *` and back. This means more copying, but this is not used in a hot path at all, so I think it is acceptable. Change-Id: I92c50a1bdd8307141cdbacb388248e4e4fc08c93 Co-authored-by: Lancelot SIX <lsix@lancelotsix.com>
2021-09-30gdbsupport: make gdb_open_cloexec return scoped_fdSimon Marchi1-9/+7
Make gdb_open_cloexec return a scoped_fd, to encourage using automatic management of the file descriptor closing. Except in the most trivial cases, I changed the callers to just release the fd, which retains their existing behavior. That will allow the transition to using scoped_fd more to go gradually, one caller at a time. Change-Id: Ife022b403f96e71d5ebb4f1056ef6251b30fe554
2021-09-27gdb: add setting to disable reading source code filesAndrew Burgess1-3/+63
In some situations it is possible that a user might not want GDB to try and access source code files, for example, the source code might be stored on a slow to access network file system. It is almost certainly possible that using some combination of 'set directories' and/or 'set substitute-path' a user can trick GDB into being unable to find the source files, but this feels like a rather crude way to solve the problem. In this commit a new option is add that stops GDB from opening and reading the source files. A user can run with source code reading disabled if this is required, then re-enable later if they decide that they now want to view the source code.
2021-07-17Introduce find_source_or_rewriteTom Tromey1-0/+28
The final bug fix in this series would duplicate the logic in psymtab_to_fullname, so this patch extracts the body of this function into a new function.
2021-05-27gdb: fix tab after space indentation issuesSimon Marchi1-2/+2
I spotted some indentation issues where we had some spaces followed by tabs at beginning of line, that I wanted to fix. So while at it, I did a quick grep to find and fix all I could find. gdb/ChangeLog: * Fix tab after space indentation issues throughout. Change-Id: I1acb414dd9c593b474ae2b8667496584df4316fd
2021-05-27gdb: make add_com_alias accept target as a cmd_list_elementSimon Marchi1-10/+11
The alias creation functions currently accept a name to specify the target command. They pass this to add_alias_cmd, which needs to lookup the target command by name. Given that: - We don't support creating an alias for a command before that command exists. - We always use add_info_alias just after creating that target command, and therefore have access to the target command's cmd_list_element. ... change add_com_alias to accept the target command as a cmd_list_element (other functions are done in subsequent patches). This ensures we don't create the alias before the target command, because you need to get the cmd_list_element from somewhere when you call the alias creation function. And it avoids an unecessary command lookup. So it seems better to me in every aspect. gdb/ChangeLog: * command.h (add_com_alias): Accept target as cmd_list_element. Update callers. Change-Id: I24bed7da57221cc77606034de3023fedac015150
2021-05-19gdb: Add an overloaded ui_out::text accepting a const std::string &Marco Barisione1-1/+1
gdb/ChangeLog: * ui-out.h (class ui_out): Add ui_out::text accepting a constant reference to a std::string. Fix all callers using std::string::c_str. * ui-out.c (ui_out::text): Ditto.
2021-05-17Fix buffer underflow in add_pathTom Tromey1-0/+1
Address sanitizer pointed out a buglet in source.c:add_path. In this test, from gdb.base/source-dir.exp: (gdb) set directories :/foo:/bar ... 'p[-1]' will result in a buffer underflow. This patch fixes the bug by introducing a new check. 2021-05-17 Tom Tromey <tromey@adacore.com> * source.c (add_path): Check 'p' before using 'p[-1]'.
2021-03-20Introduce method wrappers for quick_symbol_functionsTom Tromey1-4/+2
This introduces wrappers for each function in quick_symbol_functions. The wrappers are methods on objfile, and are defined in symfile-debug.c, so that they can use the symfile_debug variable. Places that call the quick functions are all updated to call these new wrapper methods. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symtab.c (iterate_over_symtabs, expand_symtab_containing_pc) (lookup_symbol_via_quick_fns, find_quick_global_symbol_language) (basic_lookup_transparent_type_quick) (find_pc_sect_compunit_symtab, find_symbol_at_address) (find_line_symtab, global_symbol_searcher::expand_symtabs): Update. * symmisc.c (print_objfile_statistics, dump_objfile) (maintenance_expand_symtabs): Update. * symfile.c (symbol_file_add_with_addrs) (expand_symtabs_matching, map_symbol_filenames): Update. * symfile-debug.c (objfile::has_partial_symbols) (objfile::find_last_source_symtab) (objfile::forget_cached_source_info) (objfile::map_symtabs_matching_filename, objfile::lookup_symbol) (objfile::print_stats, objfile::dump) (objfile::expand_symtabs_for_function) (objfile::expand_all_symtabs) (objfile::expand_symtabs_with_fullname) (objfile::map_matching_symbols) (objfile::expand_symtabs_matching) (objfile::find_pc_sect_compunit_symtab) (objfile::map_symbol_filenames) (objfile::find_compunit_symtab_by_address) (objfile::lookup_global_symbol_language): New methods. (debug_sym_quick_functions): Remove. (debug_sym_fns, install_symfile_debug_logging): Update. * source.c (forget_cached_source_info_for_objfile) (select_source_symtab): Update. * objfiles.h (struct objfile): Add methods corresponding to quick_symbol_functions. * objfiles.c (objfile::has_partial_symbols): Move to symfile-debug.c. * linespec.c (iterate_over_all_matching_symtabs): Update. * cp-support.c (add_symbol_overload_list_qualified): Update. * ada-lang.c (add_nonlocal_symbols): Update.
2021-02-27[PR gdb/27393] set directories: handle empty dirs.Lancelot SIX1-0/+2
As reported in gdb/27393, the 'directory' and 'set directories' commands fail when parsing an empty dir name: (gdb) set directories "" /home/lsix/dev/gnu/binutils-gdb/gdbsupport/pathstuff.cc:132: internal-error: gdb::unique_xmalloc_ptr<char> gdb_abspath(const char*): Assertion `path != NULL && path[0] != '\0'' failed. or (gdb) dir : /home/lsix/dev/gnu/binutils-gdb/gdbsupport/pathstuff.cc:132: internal-error: gdb::unique_xmalloc_ptr<char> gdb_abspath(const char*): Assertion `path != NULL && path[0] != '\0'' failed. This patch fixes this issue by ignoring any attempt to add an empty name to the source directories list. 'set dir ""' will reset the directories list the same way 'set dir' would do it. Tested on x86_64.
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.
2020-11-02gdb, gdbserver, gdbsupport: fix leading space vs tabs issuesSimon Marchi1-25/+25
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 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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 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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
2020-10-17[gdb/symtab] Handle setting line bp without debug line infoTom de Vries1-1/+6
When setting a breakpoint on a line in an executable without debug line info, we run into an abort. The problem occurs when calling set_default_source_symtab_and_line, which calls select_source_symtab (0), which is where we try to find the line number for main: ... /* Make the default place to list be the function `main' if one exists. */ block_symbol bsym = lookup_symbol (main_name (), 0, VAR_DOMAIN, 0); if (bsym.symbol != nullptr && SYMBOL_CLASS (bsym.symbol) == LOC_BLOCK) { symtab_and_line sal = find_function_start_sal (bsym.symbol, true); loc->set (sal.symtab, std::max (sal.line - (lines_to_list - 1), 1)); return; } ... However, due to the missing debug line info, find_function_start_sal returns a sal with sal.symtab == 0: ... (gdb) p /x sal $2 = {pspace = 0x1a4a7f0, symtab = 0x0, symbol = 0x1d9e480, section = 0x1d5b398, msymbol = 0x0, line = 0x0, pc = 0x4004ab, end = 0x0, explicit_pc = 0x0, explicit_line = 0x0, is_stmt = 0x0, prob = 0x0, objfile = 0x0} ... which eventually causes an segfault in create_sals_line_offset because self->default_symtab->filename is accessed while self->default_symtab == NULL. Fix this by handling sal.symtab == NULL in select_source_symtab. Tested on x86_64-linux. gdb/ChangeLog: 2020-10-17 Tom de Vries <tdevries@suse.de> PR symtab/26317 * source.c (select_source_symtab): Handling sal.symtab == NULL for symbol main. gdb/testsuite/ChangeLog: 2020-10-17 Tom de Vries <tdevries@suse.de> PR symtab/26317 * gdb.dwarf2/dw2-main-no-line-number.exp: New file.
2020-10-09Notify observers that directories have changed when using "directory" CLI ↵Jan Vrany1-2/+9
command gdb/ChangeLog * source.c (directory_command): Notify observers that "directories" parameter has changed. gdb/testsuite/ChangeLog * gdb.mi/mi-cmd-param-changed.exp: Check that notification is is emmited for both 'set directories' and 'directory' commands.
2020-05-22gdb: Restore old annotations behaviour when printing frame infoAndrew Burgess1-1/+1
This undoes most of the changes from these commits: commit ec8e2b6d3051f0b4b2a8eee9917898e95046c62f Date: Fri Jun 14 23:43:00 2019 +0100 gdb: Don't allow annotations to influence what else GDB prints commit 0d3abd8cc936360f8c46502135edd2e646473438 Date: Wed Jun 12 22:34:26 2019 +0100 gdb: Remove an update of current_source_line and current_source_symtab as a result of the discussion here: https://sourceware.org/pipermail/gdb/2020-April/048468.html Having taken time to reflect on the discussion, and reading the documentation again I believe we should revert GDB's behaviour back to how it used to be. The original concern that triggered the initial patch was that when annotations were on the current source and line were updated (inside the annotation code), while when annotations are off this update would not occur. This was incorrect, as printing the source with the call to print_source_lines does also update the current source and line. Further, the documentation here: https://sourceware.org/gdb/current/onlinedocs/gdb/Source-Annotations.html#Source-Annotations Clearly states: "The following annotation is used instead of displaying source code: ^Z^Zsource filename:line:character:middle:addr ..." So it is documented that the 'source' annotation is a replacement for, and not in addition to, actually printing the source lie. There are still a few issues that I can see, these are: 1. In source.c:info_line_command, when annotations are on we call annotate_source_line, however, if annotations are off then there is no corresponding call to print the source line. This means that a if a user uses 'info line ...' with annotations on, and then does a 'list', they will get different results than if they had done this with annotations off. 2. It bothers me that the call to annotate_source_line returns a boolean, and that this controls a call to print_source_line (in stack.c:print_frame_info). The reason for this is that the source line annotation will only print something if the file is found, and the line number is in range for the file. It seems to me like an annotation should always be printed, either one that identifies the file and line, or one that identifies the file and line GDB would like to access, but couldn't. I considered changing this, but in the end decided not too, if I extend the existing 'source' annotation to print something in all cases then I risk breaking existing UIs that rely on the file and line always being valid. If I add a new annotation then this might also break existing UIs that rely on GDB itself printing the error from within print_source_line. Given that annotations is deprecated (as I understand it) mechanism for UIs to interact with GDB (in favour of MI) I figure we should just restore the old behaviour, and leave the mini-bugs in until someone actually complains. This isn't a straight revert of the two commits mentioned above. I've left annotate_source_line instead of going back to the original identify_source_line, which lived in source.c, but was really annotation related. The API for setting the current source and line has changed since the original patches, so I updated for that change too. Finally I wrote the code in stack.c so that we avoided an extra level of indentation, which I felt made things easier to read. gdb/ChangeLog: * annotate.c (annotate_source_line): Update return type, add call to update current symtab and line. * annotate.h (annotate_source_line): Update return type, and extend header comment. * source.c (info_line_command): Check annotation_level before calling annotate_source_line. * stack.c (print_frame_info): If calling annotate_source_line returns true, then don't print any other source line information. gdb/testsuite/ChangeLog: * gdb.base/annota1.exp: Update expected results. * gdb.cp/annota2.exp: Update expected results, remove duplicate test name. * gdb.cp/annota3.exp: Update expected results.
2020-05-08Remove ALL_PSPACESTom Tromey1-3/+1
This removes the ALL_PSPACES macro. In this case it seemed cleanest to change how program spaces are stored -- instead of using a linked list, they are now stored in a std::vector. gdb/ChangeLog 2020-05-08 Tom Tromey <tom@tromey.com> * symtab.c (set_symbol_cache_size) (maintenance_print_symbol_cache, maintenance_flush_symbol_cache) (maintenance_print_symbol_cache_statistics): Update. * symmisc.c (print_symbol_bcache_statistics) (print_objfile_statistics, maintenance_print_objfiles) (maintenance_info_symtabs, maintenance_check_symtabs) (maintenance_expand_symtabs, maintenance_info_line_tables): Update. * symfile-debug.c (set_debug_symfile): Update. * source.c (forget_cached_source_info): Update. * python/python.c (gdbpy_progspaces): Update. * psymtab.c (maintenance_info_psymtabs): Update. * probe.c (parse_probes): Update. * linespec.c (iterate_over_all_matching_symtabs) (collect_symtabs_from_filename, search_minsyms_for_name): Update. * guile/scm-progspace.c (gdbscm_progspaces): Update. * exec.c (exec_target::close): Update. * ada-tasks.c (ada_tasks_new_objfile_observer): Update. * breakpoint.c (print_one_breakpoint_location) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint): Update. * progspace.c (program_spaces): Now a std::vector. (maybe_new_address_space): Update. (add_program_space): Remove. (program_space::program_space): Update. (remove_program_space): Update. (number_of_program_spaces): Remove. (print_program_space, update_address_spaces): Update. * progspace.h (program_spaces): Change type. (ALL_PSPACES): Remove. (number_of_program_spaces): Don't declare. (struct program_space) <next>: Remove.
2020-04-18Change get_objfile_arch to a method on objfileTom Tromey1-2/+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.
generated by cgit v1.1 at 2024-11-27 11:20:30 +0000