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| author | WangYuli <wangyuli@uniontech.com> | 2025-04-11 10:32:21 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2025-04-16 17:29:33 +0300 |
| commit | 3af4bec9c1db3f003be4d5ae09b6a737e4be1612 (patch) | |
| tree | fe3bb318df4fd462fd90b3afab4ab326664d879d /tools/perf/scripts/python/intel-pt-events.py | |
| parent | 0af2f6be1b4281385b618cb86ad946eded089ac8 (diff) | |
| download | linux-3af4bec9c1db3f003be4d5ae09b6a737e4be1612.tar.xz | |
riscv: KGDB: Do not inline arch_kgdb_breakpoint()
The arch_kgdb_breakpoint() function defines the kgdb_compiled_break
symbol using inline assembly.
There's a potential issue where the compiler might inline
arch_kgdb_breakpoint(), which would then define the kgdb_compiled_break
symbol multiple times, leading to fail to link vmlinux.o.
This isn't merely a potential compilation problem. The intent here
is to determine the global symbol address of kgdb_compiled_break,
and if this function is inlined multiple times, it would logically
be a grave error.
Link: https://lore.kernel.org/all/4b4187c1-77e5-44b7-885f-d6826723dd9a@sifive.com/
Link: https://lore.kernel.org/all/5b0adf9b-2b22-43fe-ab74-68df94115b9a@ghiti.fr/
Link: https://lore.kernel.org/all/23693e7f-4fff-40f3-a437-e06d827278a5@ghiti.fr/
Fixes: fe89bd2be866 ("riscv: Add KGDB support")
Co-developed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Link: https://lore.kernel.org/r/F22359AFB6FF9FD8+20250411073222.56820-1-wangyuli@uniontech.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions