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LoongArch: ptrace: Expose hardware breakpoints to debuggers

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Implement the regset-based ptrace interface that exposes hardware
breakpoints to user-space debuggers to query and set instruction and
data breakpoints.

Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Qing Zhang 2023-02-25 15:52:57 +08:00 • committed by Huacai Chen
parent edffa33c7b
commit 1a69f7a161
3 changed files with 413 additions and 0 deletions
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2
include/uapi/linux/elf.h
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@ -444,6 +444,8 @@ typedef struct elf64_shdr {
#define NT_LOONGARCH_LSX 0xa02 /* LoongArch Loongson SIMD Extension registers */
#define NT_LOONGARCH_LASX 0xa03 /* LoongArch Loongson Advanced SIMD Extension registers */
#define NT_LOONGARCH_LBT 0xa04 /* LoongArch Loongson Binary Translation registers */
#define NT_LOONGARCH_HW_BREAK 0xa05 /* LoongArch hardware breakpoint registers */
#define NT_LOONGARCH_HW_WATCH 0xa06 /* LoongArch hardware watchpoint registers */
/* Note types with note name "GNU" */
#define NT_GNU_PROPERTY_TYPE_0 5