diff options
Diffstat (limited to 'arch/arm64/include/asm/ptrace.h')
| -rw-r--r-- | arch/arm64/include/asm/ptrace.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 2e9ddd71b24a..5db016e6d065 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -42,6 +42,7 @@ #define COMPAT_PSR_MODE_UND 0x0000001b #define COMPAT_PSR_MODE_SYS 0x0000001f #define COMPAT_PSR_T_BIT 0x00000020 +#define COMPAT_PSR_E_BIT 0x00000200 #define COMPAT_PSR_F_BIT 0x00000040 #define COMPAT_PSR_I_BIT 0x00000080 #define COMPAT_PSR_A_BIT 0x00000100 @@ -67,6 +68,7 @@ /* Architecturally defined mapping between AArch32 and AArch64 registers */ #define compat_usr(x) regs[(x)] +#define compat_fp regs[11] #define compat_sp regs[13] #define compat_lr regs[14] #define compat_sp_hyp regs[15] @@ -131,7 +133,12 @@ struct pt_regs { (!((regs)->pstate & PSR_F_BIT)) #define user_stack_pointer(regs) \ - ((regs)->sp) + (!compat_user_mode(regs) ? (regs)->sp : (regs)->compat_sp) + +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->regs[0]; +} /* * Are the current registers suitable for user mode? (used to maintain |