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13 days[gdb/testsuite] Fix clean_restart <absolute filename> in allow_aarch64_sme_testsTom de Vries1-1/+2
Fix fallout on aarch64-linux with test-case gdb.testsuite/gdb-caching-proc-consistency.exp from erroring out on clean_restart <absolute filename>.
13 days[gdb/testsuite] Fix silent timeout in allow_aarch64_gcs_testsTom de Vries1-0/+3
I noticed on M1 aarch64-linux that test-case gdb.testsuite/gdb-caching-proc-consistency.exp took a long time. I saw lack of progress in gdb.log for proc allow_aarch64_gcs_tests. This gdb_expect only handles the case that gcs support is detected: ... gdb_expect { -re ".*$inferior_exited_re normally.*${gdb_prompt} $" { verbose -log "\n$me: gcs support detected" set allow_gcs_tests 1 } } ... but in my case, I get: ... (gdb) run ^M Starting program: allow_aarch64_gcs_tests.x ^M [Thread debugging using libthread_db enabled]^M Using host libthread_db library "/lib64/libthread_db.so.1".^M [Inferior 1 (process 3336556) exited with code 01]^M (gdb) ... so the gdb_expect times out quietly, taking 10 seconds. In the test-case, it does so 11 times. Fix this by adding a gdb_expect clause handling the "with code 01" case. Tested on aarch64-linux. PR testsuite/33378 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33378
13 daysx86: check reloc types for relaxable branchesJan Beulich4-12/+26
Bypassing _reloc() isn't a good idea, as there are various errors checked for there. For example 16-bit JMP or Jcc may not use the @plt form (resulting in a 32-bit relocation to be emitted for a 16-bit field), which so far we only reject for 16-bit CALL. In exchange this allows simplifying the setting up of the "reloc_type" local variable.
13 daysx86: make reloc() usable during late phases of assemblyJan Beulich1-16/+33
Introduce a clone with extra parameters, to allow subsequent use from md_estimate_size_before_relax() (or elsewhere, should that turn out necessary). There flag_code cannot be used and location information needs to be provided for diagnostics.
13 daysgdb: run black on gdbarch_components.pySimon Marchi1-1/+1
Change-Id: Ifcf80faa240c7c235bfea4ddc79f0d6c39858c5e
13 daysAutomatic date update in version.inGDB Administrator1-1/+1
13 daysGDB: aarch64-linux: Define HWCAP_GCS as unsigned long long valueThiago Jung Bauermann6-6/+6
On platforms where long is 32 bits, this change fixes a build failure: /home/linux/arm/gdb/src/gdb/aarch64-linux-tdep.c: In function ‘const target_desc* aarch64_linux_core_read_description(gdbarch*, target_ops*, bfd*)’: /home/linux/arm/gdb/src/gdb/arch/aarch64-gcs-linux.h:27:24: error: left shift count >= width of type [-Werror=shift-count-overflow] 27 | #define HWCAP_GCS (1UL << 32) | ~~~~^~~~~ /home/linux/arm/gdb/src/gdb/aarch64-linux-tdep.c:1714:47: note: in expansion of macro ‘HWCAP_GCS’ 1714 | features.gcs = features.gcs_linux = hwcap & HWCAP_GCS; | ^~~~~~~~~ Suggested-by: Tom de Vries <tdevries@suse.de> Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33372
13 daysgdb/testsuite: revert recent changes to gdb.dap/scopes.expAndrew Burgess1-143/+132
After the previous commit, the changes to gdb.dap/scopes.exp from the commit: commit 63b862be762e1e6e7ce667c6b4a1a3dd79939bf4 Date: Fri Mar 29 16:38:50 2019 +0100 gdb, gdbserver: Add support of Intel shadow stack pointer register. Are no longer needed, the test will now happily handle the shadow stack pointer being unavailable. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33345 Reviewed-By: Christina Schimpe <christina.schimpe@intel.com>
13 daysgdb/dap: check values are available before converting to intAndrew Burgess1-1/+5
In VariableReference.to_object, we try to convert a gdb.Value to an int without checking if the value is actually available. This came to light in PR gdb/33345, after the x86 CET shadow stack patches were merged. If the x86 CET shadow stack register is available on the machine, but the shadow stack feature is not enabled at run time, then the register will show as "<unavailable>". As the register is of type 'void *', then in the DAP code we try to add a 'memoryReference' attribute with the value of the register formatted as hex. This will fail if the register is unavailable. To test this change you'll need: (a) a machine which support the shadow stack feature, and (b) to revert the changes from commit 63b862be762e1e6e7 in the file gdb.dap/scopes.exp. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33345 Reviewed-By: Christina Schimpe <christina.schimpe@intel.com>
13 daysgdb/python: add gdb.Value.is_unavailable attributeAndrew Burgess5-1/+93
Add a new gdb.Value.is_unavailable attribute. This is similar to the existing Value.is_optimized_out attribute, but returns True if any part of the value is <unavailable>. The existing Value.is_optimized_out attribute returns true if any part of the value is optimized out, so I thought that Value.is_unavailable should work the same way. There's also a test. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33345 Reviewed-By: Eli Zaretskii <eliz@gnu.org> Reviewed-By: Christina Schimpe <christina.schimpe@intel.com>
13 daysgdb, amd64: return after amd64_analyze_register_saves if current_pc reachedPawel Kupczak1-0/+3
Make sure the function bails out early if CURRENT_PC is reached, to avoid the call to amd64_analyze_stack_alloc. Reviewed-By: Guinevere Larsen <guinevere@redhat.com> Approved-By: Andrew Burgess <aburgess@redhat.com>
13 daysgdb, amd64: extend the amd64 prologue analyzer to skip stack allocPawel Kupczak6-26/+172
Following the previous patch (gdb, amd64: extend the amd64 prologue analyzer to skip register pushes), this patch extends the analyzer further to be able to skip stack space allocation as the next prologue part, for functions with a frame pointer. Implementation was based on the i386 counterpart, which already had that functionality. As of now, the stack allocation is not skipped. Examples below use C source listed below, compiled with gcc 11.4.0. ``` int foo (int n) { int ns[] = { 1, 4, 9, 16, 25 }; return ns[n]; } int main (int argc, char **argv) { return foo (argc); } ``` Compiling with "gcc -O0 -fno-omit-frame-pointer" we get: ``` (gdb) b foo Breakpoint 1 at 0x1151 (gdb) r ... Breakpoint 1, 0x0000555555555151 in foo () (gdb) disassemble Dump of assembler code for function foo: 0x0000555555555149 <+0>: endbr64 0x000055555555514d <+4>: push %rbp 0x000055555555514e <+5>: mov %rsp,%rbp => 0x0000555555555151 <+8>: sub $0x30,%rsp 0x0000555555555155 <+12>: mov %edi,-0x24(%rbp) ... ``` With this patch, it gets skipped the same way register pushes are: ``` (gdb) b foo Breakpoint 1 at 0x1155 (gdb) r ... Breakpoint 1, 0x0000555555555155 in foo () (gdb) disassemble Dump of assembler code for function foo: 0x0000555555555149 <+0>: endbr64 0x000055555555514d <+4>: push %rbp 0x000055555555514e <+5>: mov %rsp,%rbp 0x0000555555555151 <+8>: sub $0x30,%rsp => 0x0000555555555155 <+12>: mov %edi,-0x24(%rbp) ... ``` Reviewed-By: Guinevere Larsen <guinevere@redhat.com> Approved-By: Andrew Burgess <aburgess@redhat.com>
13 daysgdb, amd64: return after amd64_analyze_frame_setup if current_pc reachedPawel Kupczak1-0/+3
Make sure the function bails out early if CURRENT_PC is reached, to avoid the call to amd64_analyze_register_saves. Reviewed-By: Guinevere Larsen <guinevere@redhat.com> Approved-By: Andrew Burgess <aburgess@redhat.com>
13 daysgdb, amd64: extend the amd64 prologue analyzer to skip register pushesPawel Kupczak6-1/+607
A typical function's prologue can consist of setting up a frame pointer, pushing registers onto the stack and allocating space on the stack. Current amd64 prologue analyzer would stop after the frame setup. This patch allows GDB to skip past register pushes, while also improving unwinding pushed registers, for functions with a frame pointer, without debug info and .cfi directives found in .eh_frame section that are used for unwinding. Skipping register pushes was also present for i386 targets before - the proposed changes are based on i386 implementation. It also improves the unwinding even if .cfi directives are present, because GDB can only unwind a register if it has reached a corresponding .cfi directive, which won't be there before the pushes. Additionally, at least gcc 11.4 and later by default doesn't emit necessary debug info, which GDB would try to use to find prologue's end. In that case, extended prologue analyzer would take effect. Using C source listed below as an example, compiled with gcc 11.4.0: ``` int __attribute__ ((noinline)) bar (int a) { return a + a; } int __attribute__ ((noinline)) foo (int a, int b, int c, int d, int e) { int x = bar (a) + bar (b) + bar (c) + bar (d) + bar (e); return x; } int main (int argc, char **argv) { return foo (1, 2, 3, 4, 5); } ``` Compiling with "gcc -O1 -fno-omit-frame-pointer -fno-asynchronous-unwind-tables", we get: ``` (gdb) b foo Breakpoint 1 at 0x1139 (gdb) r ... Breakpoint 1, 0x0000555555555139 in foo () (gdb) disassemble Dump of assembler code for function foo: 0x0000555555555131 <+0>: endbr64 0x0000555555555135 <+4>: push %rbp 0x0000555555555136 <+5>: mov %rsp,%rbp => 0x0000555555555139 <+8>: push %r15 0x000055555555513b <+10>: push %r14 0x000055555555513d <+12>: push %r13 0x000055555555513f <+14>: push %r12 0x0000555555555141 <+16>: push %rbx 0x0000555555555142 <+17>: sub $0x8,%rsp 0x0000555555555146 <+21>: mov %esi,%r15d ... (gdb) ni 0x000055555555513b in foo () (gdb) p $r15 $1 = 140737354125376 (gdb) p $r15=1234 $2 = 1234 (gdb) p $r15 $3 = 1234 (gdb) up #1 0x00005555555551b7 in main () (gdb) p $r15 $4 = 1234 ``` With the proposed changes, breakpoint gets past those register pushes: ``` (gdb) b foo Breakpoint 1 at 0x1142 (gdb) r ... Breakpoint 1, 0x0000555555555142 in foo () (gdb) disassemble Dump of assembler code for function foo: 0x0000555555555131 <+0>: endbr64 0x0000555555555135 <+4>: push %rbp 0x0000555555555136 <+5>: mov %rsp,%rbp 0x0000555555555139 <+8>: push %r15 0x000055555555513b <+10>: push %r14 0x000055555555513d <+12>: push %r13 0x000055555555513f <+14>: push %r12 0x0000555555555141 <+16>: push %rbx => 0x0000555555555142 <+17>: sub $0x8,%rsp 0x0000555555555146 <+21>: mov %esi,%r15d ... ``` Also, unwinding pushed registers now works: ``` ... Breakpoint 1, 0x0000555555555142 in foo () (gdb) disassemble Dump of assembler code for function foo: 0x0000555555555131 <+0>: endbr64 0x0000555555555135 <+4>: push %rbp 0x0000555555555136 <+5>: mov %rsp,%rbp 0x0000555555555139 <+8>: push %r15 0x0000555555555139 <+8>: push %r15 0x000055555555513b <+10>: push %r14 0x000055555555513d <+12>: push %r13 0x000055555555513f <+14>: push %r12 0x0000555555555141 <+16>: push %rbx => 0x0000555555555142 <+17>: sub $0x8,%rsp 0x0000555555555146 <+21>: mov %esi,%r15d ... (gdb) p $r15 $1 = 140737354125376 (gdb) p $r15=1234 $2 = 1234 (gdb) p $r15 $3 = 1234 (gdb) up #1 0x00005555555551b7 in main () (gdb) p $r15 $4 = 140737354125376 ``` Additionally a new test was added to verify this behavior. Reviewed-By: Guinevere Larsen <guinevere@redhat.com> Approved-By: Andrew Burgess <aburgess@redhat.com>
13 daysDon't require "Bss=" in qOffsets responseTom Tromey1-2/+0
The "Bss=" part of the qOffsets response is documented as being optional, but gdb in fact requires it. This patch fixes the bug. I couldn't find a straightforward way to test this. gdbserver does send 'Bss=' -- but this code is only enabled for a fairly specific setup: #if (defined(__UCLIBC__) \ && defined(HAS_NOMMU) \ && defined(PT_TEXT_ADDR) \ && defined(PT_DATA_ADDR) \ && defined(PT_TEXT_END_ADDR)) #define SUPPORTS_READ_OFFSETS #endif I also considered changing gdbserver to not send Bss=, but decided against this, reasoning that we may as well not break compatibility with older versions of gdb. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33319 Approved-By: Simon Marchi <simon.marchi@efficios.com>
14 daysgdb/testsuite: fix possible TCL errors in gdb.threads/threadcrash.expGuinevere Larsen1-2/+3
The test gdb.threads/threadcrash.exp, among other things, creates a list of the threads seen in the order that the "thread apply all backtrace" would generate them, tests that this list is the same size as GDB's count of threads, and then loops over the list to check that each thread has the expected backtrace. A problem occurs because the loop iterates on GDB's internal count of threads, rather than the size of the list, but then attempts to acces the n-th element of the list. If the list size is smaller than GDB's internal thread count, it'll access past the end of the list and generate TCL errors. This commit fixes this by using the list's length instead. Approved-By: Tom Tromey <tom@tromey.com>
14 daysgdb: remove most global core file accesses from fbsd-tdep.cAndrew Burgess1-32/+25
This commit removes many places in fbsd-tdep.c where we access the current core file via current_program_space, and replaces these accesses with a function argument that is passed in. There are still two uses of 'current_program_space->core_bfd ()' in the file, these will be addressed in future work (not in this series though). There should be no user visible changes after this commit. Approved-By: Simon Marchi <simon.marchi@efficios.com>
14 daysgdb: pass core file to gdbarch_core_xfer_siginfoAndrew Burgess6-23/+26
Another patch that aims to remove 'current_program_space->core_bfd ()' from GDB. This time I'm passing the core file BFD as an argument to the gdbarch method gdbarch_core_xfer_siginfo. In corelow.c the core file is being passed, this does introduce a new instance of 'current_program_space->core_bfd ()', but this is OK. My long term plan is to move the core bfd into core_target, in which case the call to gdbarch_core_xfer_siginfo will have access to the core bfd as a member variable. For now though, this patch moves the accesses via global state up the call stack, and consolidates the two calls from fbsd-tdep.c and linux-tdep.c into the one call in corelow.c. There should be no user visible changes after this commit. Approved-By: Simon Marchi <simon.marchi@efficios.com>
14 daysgdb: remove most global core file accesses from record-full.cAndrew Burgess1-39/+28
This commit continues my ongoing work to reduce the number of global accesses to the current core file BFD in GDB. The global accesses I'm working on removing look like 'current_program_space->core_bfd ()'. This commit targets record-full.c. All global accesses are removed except for two in record_full_open, which is used to implements the two commands 'target record-full' and 'record full restore'. All other global accesses to the core file are removed by passing the core file through as an argument from this one top level function. As I followed the code through I noticed that record_full_restore, which currently includes this check: if (current_program_space->core_bfd () == nullptr) return; could never actually be called without a core file being set. As the argument is now 'struct bfd &', then there is no longer an option for the incoming argument to be NULL, and the above check is removed. There should be no user visible changes after this commit. Approved-By: Simon Marchi <simon.marchi@efficios.com>
14 daysgdb: remove some dead code from core_target_openAndrew Burgess1-7/+8
In core_target_open we call target_preopen which pops all targets above the file_stratum, this will include the core_target, if the core target is currently loaded. Currently, the core file BFD is stored in the program_space of an inferior. The only way to set the core file BFD is by creating a core_target (in core_target_open). And when a core_target is closed the core file BFD within the program_space is reset to nullptr (see core_target::close and core_target::clear_core, both in corelow.c). What this means is that, if there is no core_target loaded then there will be no core file BFD in the program_space. And in core_target_open, after the call to target_preopen, there will be no core_target loaded, and thus, no core file BFD in the program_space. There is currently code in core_target_open which checks to see if there is a core file BFD set in the current program space. For the reasons given above, I believe this is dead code and can be removed. I've added some asserts to validate my assumptions. There should be no user visible changes after this commit. Approved-By: Simon Marchi <simon.marchi@efficios.com>
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/*.expTom de Vries9-10/+19
Fix clean_restart <absolute filename> in gdb.arch/*.exp. The fixed test-cases are supported on archs sh, ia64, mips, pa and sparc. I haven't tested these.
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/powerpc*.expTom de Vries27-31/+47
Fix clean_restart <absolute filename> in gdb.arch/powerpc*.exp. Likewise in gdb.arch/ppc*.exp, gdb.arch/altivec*.exp, gdb.arch/e500*.exp and gdb.arch/vsx*.exp. Tested on ppc64le-linux. The following test-cases only run on 32-bit ppc: - gdb.arch/e500-abi.exp - gdb.arch/e500-prologue.exp - gdb.arch/e500-regs.exp - gdb.arch/powerpc-aix-prologue.exp - gdb.arch/powerpc-prologue.exp - gdb.arch/powerpc-prologue-frame.exp - gdb.arch/powerpc-trap.exp so these haven't been tested.
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/thumb*.expTom de Vries3-3/+3
Fix clean_restart <absolute filename> in gdb.arch/thumb*.exp. Likewise in test-case gdb.arch/pr25124.exp. Tested on arm-linux, target boards unix/-marm and unix/-mthumb.
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/arm*.expTom de Vries3-3/+3
Fix clean_restart <absolute filename> in gdb.arch/arm*.exp. Tested on: - arm-linux, target boards unix/-marm and unix/-mthumb - aarch64-linux
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/aarch64*.expTom de Vries7-14/+27
Fix clean_restart <absolute filename> in gdb.arch/aarch64*.exp. Tested on aarch64-linux, M1 system. There's a large number (44) of unsupported, for the following reasons: - allow_aarch64_gcs_tests - allow_aarch64_mops_tests - allow_aarch64_sve_tests / target does not support SVE - memory tagging unsupported Consequently, we mostly use the simple substitution: ... clean_restart $binfile -> clean_restart gdb_load $binfile ...
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/i386*.expTom de Vries14-15/+15
Fix clean_restart <absolute filename> in gdb.arch/i386*.exp. Tested on x86_64-linux, with target board unix/-m32 and gcc 15. The only unsupported test-case is gdb.arch/i386-avx512.exp, which isn't changed by this commit.
14 days[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.arch/amd64*.expTom de Vries12-22/+23
Fix clean_restart <absolute filename> in gdb.arch/amd64*.exp. Tested on x86_64-linux, with kernel version 6.16.3. The only unsupported test-case is gdb.arch/amd64-lam.exp, which isn't changed by this commit.
14 daysRISC-V: Don't generate R_RISCV_RELATIVE if symbol referenced section is SH_ABSNelson Chu5-1/+26
It's werid if it's absolute symbol but have a relative reloc for got entry under pie. So don't generate relative reloc if symbol referenced section is SH_ABS. However, x86 allows the absolute symbol defined in linker script has a relative reloc, not sure if risc-v needs this or not.
14 daysRISC-V: Don't overwrite got entry to zero for IRELATIVE/RELATIVE relocationNelson Chu1-11/+5
Even the final result is correct since we encode the relocation into r_addend, so glibc won't need to get the content of got entry when resolving relative relocation, it still werid that finish_dynamic_symbol cleans what we filled in the relocate_section.
14 daysRISC-V: Fixed missed GOT relocation against a symbol that has a defined valueNelson Chu3-37/+117
SImilar to aarch64, commit eac4eb8ecb26 There are two problems when GOT relocation against a symbol that has a defined value, 1. Pesudo la with pic and pseudo lga lost the relocations. 2. %got_pcrel_hi generates R_RISCV_GOT_HI20 with addend, which is wrong since commit 50331d64f108. The solution is to use deferred_expression for GOT relocation. Maybe other relocations also have same problem and need the deferred_expression, but we can add in the future patches.
2025-09-04[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.adaTom de Vries18-18/+18
Fix clean_restart <absolute filename> in the test-cases in gdb.ada. Tested on x86_64-linux with gcc 14.
2025-09-04Automatic date update in version.inGDB Administrator1-1/+1
2025-09-04PR 33360, Correct strings -Ue outputAndrew C Aitchison1-2/+2
Signed-off-by: Andrew C Aitchison <andrew@aitchison.me.uk>
2025-09-04mips: remove unnecessary obstack_finishAlan Modra1-1/+1
It isn't necessary to call obstack_finish before obstack_free of an unwanted string. * config/tc-mips.c (mips_parse_arguments): Replace obstack_finsih with obstack_base.
2025-09-03gdb/testsuite] Fix clean_restart <absolute filename> in gdb.compileTom de Vries2-4/+5
Fix clean_restart <absolute filename> in the test-cases in gdb.compile. Tested on x86_64-linux, fedora rawhide.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.cpTom de Vries8-10/+11
Fix clean_restart <absolute filename> in the test-cases in gdb.cp. Tested on x86_64-linux.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.debuginfodTom de Vries3-11/+12
Fix clean_restart <absolute filename> in the test-cases in gdb.debuginfod. Tested on x86_64-linux.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.disasmTom de Vries4-4/+4
Fix clean_restart <absolute filename> in the test-cases in gdb.disasm. The changed test-cases: - gdb.disasm/am33.exp - gdb.disasm/hppa.exp - gdb.disasm/mn10300.exp - gdb.disasm/sh3.exp are unsupported for me, but the changes are trivial.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.dwarf2Tom de Vries25-31/+38
Fix clean_restart <absolute filename> in the test-cases in gdb.dwarf2. Tested on x86_64-linux using gcc-14. Tested these test-cases on x86_64-linux with target board unix/-m32: - gdb.dwarf2/valop.exp - gdb.dwarf2/callframecfa.exp - gdb.dwarf2/implptr.exp - gdb.dwarf2/watch-notconst.exp - gdb.dwarf2/pieces.exp - gdb.dwarf2/pieces-optimized-out.exp Tested these test-cases on x86_64-linux with target board fission-dwp: - gdb.dwarf2/dwp-symlink.exp - gdb.dwarf2/dwp-sepdebug.exp Tested test-case gdb.dwarf2/gdb-index-tilde.exp on x86_64-linux by disabling a too strict home directory check, see PR testsuite/33364.
2025-09-03readelf: Don't change the symbol tableH.J. Lu8-19/+144
1. Update dump_relr_relocations not to change the symbol table. 2. Update count_relr_relocations and dump_relr_relocations not to retrieve the same data twice. binutils/ PR binutils/33328 * readelf.c (count_relr_relocations): Add an argument to return the retrieved data and remove the FIXME in comments. (dump_relr_relocations): Add an argument for the retrieved data. Retrieve the data if needed. Don't change the symbol table and remove the FIXME in comments. (display_relocations): Get the data from count_relr_relocations and pass it to dump_relr_relocations call. (process_relocs): Pass NULL to dump_relr_relocations. ld/ PR binutils/33328 * testsuite/ld-i386/dt-relr-2.d: New file. * testsuite/ld-i386/dt-relr-2.s: Likewise. * testsuite/ld-x86-64/dt-relr-2-x32.d: Likewise. * testsuite/ld-x86-64/dt-relr-2.d: Likewise. * testsuite/ld-x86-64/dt-relr-2.s: Likewise. * testsuite/ld-i386/i386.exp: Run dt-relr-2. * testsuite/ld-x86-64/x86-64.exp: Run dt-relr-2 and dt-relr-2-x32. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.fortranTom de Vries4-5/+5
Fix clean_restart <absolute filename> in the test-cases in gdb.fortran. Tested on x86_64-linux, with gcc 14.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.gdbTom de Vries2-2/+3
Fix clean_restart <absolute filename> in the test-cases in gdb.gdb. Tested on x86_64-linux.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.guileTom de Vries4-6/+9
Fix clean_restart <absolute filename> in the test-cases in gdb.guile. Tested on x86_64-linux.
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.linespecTom de Vries2-2/+2
Fix clean_restart <absolute filename> in the test-cases in gdb.linespec. Tested on x86_64-linux.
2025-09-03[gdb/testsuite] Fix mi_clean_restart <absolute filename> in gdb.miTom de Vries91-97/+97
Fix mi_clean_restart <absolute filename> in the test-cases in gdb.mi. Tested on x86_64-linux. Also tested test-case gdb.mi/mi-dprintf.exp with target boards native-gdbserver and native-extended-gdbserver. Since test-case gdb.mi/mi-regs.exp requires istarget "sparc-*-*", I didn't test the trivial change in that test-case.
2025-09-03[gdb/testsuite] Fix mi_clean_restart <absolute filename> in gdb.traceTom de Vries5-15/+9
Fix mi_clean_restart <absolute filename> in the test-cases in gdb.trace. Tested on x86_64-linux, with target boards unix, native-gdbserver and native-extended-gdbserver.
2025-09-03gdb: LoongArch: Restrict breakpoint outside of atomic sequenceTiezhu Yang1-7/+31
We can't put a breakpoint in the middle of a ll/sc atomic sequence, so look for the end of the sequence and put the breakpoint there, it has been handled in the commit 208b57e53ed9 ("gdb: LoongArch: Deal with atomic sequence"). Especially, maybe there is a conditional branch instruction in the middle of a ll/sc atomic sequence, its destination address may be current pc + 4 which is inside the atomic sequence, it should not put a breakpoint in its destination address in this case, this has been handled in the commit a4242dc3f5fa ("gdb: LoongArch: Improve the handling of atomic sequence"). Additionally, if there is a conditional branch instruction in the middle of a ll/sc atomic sequence, its destination address may be not current pc + 4 but still inside the atomic sequence, it should not put a breakpoint in its destination address in this case. So in order to avoid putting a breakpoint in the middle of a ll/sc atomic sequence in any case, just look for the start and end of the sequence, and restrict the breakpoint outside of the atomic sequence. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2025-09-03gdb: LoongArch: Add and use cond_branch_destination_address()Tiezhu Yang1-1/+34
In the current loongarch_deal_with_atomic_sequence(), it is just a loop through a ll/sc atomic instruction sequence, the instructions before the condition branch are not actually executed, thus the condition register value is not proper to determine the destination address. Add a new function cond_branch_destination_address() to calculate the destination address of a condition branch instruction under an assumed true condition, then only put a breakpoint at this address when it is outside of the ll/sc atomic instruction sequence. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2025-09-03[gdb/testsuite] Fix clean_restart <absolute filename> in gdb.multiTom de Vries15-26/+29
Fix clean_restart <absolute filename> in the test-cases in gdb.multi. Tested on x86_64-linux.
2025-09-03x86: Check plt_got_offset for lazy IBT PLTH.J. Lu2-4/+4
Lazy IBT PLT entries look like static const bfd_byte elf_i386_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] = { 0xf3, 0x0f, 0x1e, 0xfb, /* endbr32 */ 0x68, 0, 0, 0, 0, /* pushl immediate */ 0xe9, 0, 0, 0, 0, /* jmp relative */ 0x66, 0x90 /* xchg %ax,%ax */ }; static const bfd_byte elf_x86_64_lazy_ibt_plt_entry[LAZY_PLT_ENTRY_SIZE] = { 0xf3, 0x0f, 0x1e, 0xfa, /* endbr64 */ 0x68, 0, 0, 0, 0, /* pushq immediate */ 0xe9, 0, 0, 0, 0, /* jmpq relative */ 0x66, 0x90 /* xchg %ax,%ax */ }; They only have unsigned int plt_reloc_offset; /* ... offset into relocation table. */ and don't have unsigned int plt_got_offset; /* ... address of this symbol in .got. */ We should use plt_reloc_offset, not plt_got_offset, to check IBT PLT. PR binutils/33358 * elf32-i386.c (elf_i386_get_synthetic_symtab): Check plt_reloc_offset for lazy IBT PLT. * elf64-x86-64.c (elf_x86_64_get_synthetic_symtab): Likewise. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>