diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-12-27 07:01:25 -0800 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2022-01-06 11:40:52 +0100 |
| commit | fed142461780f714e83123833a8d9682c32f68ee (patch) | |
| tree | e4aed76bb492cf64fceb8c5be23f3aed3e540f8a /target/alpha/cpu.h | |
| parent | 6e8dcacd0840b3c38e7ec664bb9adbccc2108fdd (diff) | |
target/alpha: Implement prctl_unalign_sigbus
Leave TARGET_ALIGNED_ONLY set, but use the new CPUState
flag to set MO_UNALN for the instructions that the kernel
handles in the unaligned trap.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20211227150127.2659293-5-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'target/alpha/cpu.h')
| -rw-r--r-- | target/alpha/cpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target/alpha/cpu.h b/target/alpha/cpu.h index afd975c878..e819211503 100644 --- a/target/alpha/cpu.h +++ b/target/alpha/cpu.h @@ -383,6 +383,8 @@ enum { #define ENV_FLAG_TB_MASK \ (ENV_FLAG_PAL_MODE | ENV_FLAG_PS_USER | ENV_FLAG_FEN) +#define TB_FLAG_UNALIGN (1u << 1) + static inline int cpu_mmu_index(CPUAlphaState *env, bool ifetch) { int ret = env->flags & ENV_FLAG_PS_USER ? MMU_USER_IDX : MMU_KERNEL_IDX; @@ -470,6 +472,9 @@ static inline void cpu_get_tb_cpu_state(CPUAlphaState *env, target_ulong *pc, *pc = env->pc; *cs_base = 0; *pflags = env->flags & ENV_FLAG_TB_MASK; +#ifdef CONFIG_USER_ONLY + *pflags |= TB_FLAG_UNALIGN * !env_cpu(env)->prctl_unalign_sigbus; +#endif } #ifdef CONFIG_USER_ONLY |