diff options
| author | Mark Brown <broonie@kernel.org> | 2024-10-01 23:59:06 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-10-04 12:04:41 +0100 |
| commit | 7ec3b57cb29f8371bf12a725b6e8f75831a03f27 (patch) | |
| tree | 44ffff9e205c8d372cd1c38d81fca334dfde0be3 /include/uapi/linux/elf.h | |
| parent | 16f47bb9ac8afe09e7ca14cc53748f779b2a12e0 (diff) | |
arm64/ptrace: Expose GCS via ptrace and core files
Provide a new register type NT_ARM_GCS reporting the current GCS mode
and pointer for EL0. Due to the interactions with allocation and
deallocation of Guarded Control Stacks we do not permit any changes to
the GCS mode via ptrace, only GCSPR_EL0 may be changed.
Reviewed-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-27-222b78d87eee@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'include/uapi/linux/elf.h')
| -rw-r--r-- | include/uapi/linux/elf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h index b9935988da5c..9adc218fb6df 100644 --- a/include/uapi/linux/elf.h +++ b/include/uapi/linux/elf.h @@ -443,6 +443,7 @@ typedef struct elf64_shdr { #define NT_ARM_ZT 0x40d /* ARM SME ZT registers */ #define NT_ARM_FPMR 0x40e /* ARM floating point mode register */ #define NT_ARM_POE 0x40f /* ARM POE registers */ +#define NT_ARM_GCS 0x410 /* ARM GCS state */ #define NT_ARC_V2 0x600 /* ARCv2 accumulator/extra registers */ #define NT_VMCOREDD 0x700 /* Vmcore Device Dump Note */ #define NT_MIPS_DSP 0x800 /* MIPS DSP ASE registers */ |