diff options
Diffstat (limited to 'linux-user/sparc/target_cpu.h')
| -rw-r--r-- | linux-user/sparc/target_cpu.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/linux-user/sparc/target_cpu.h b/linux-user/sparc/target_cpu.h index 1fa1011775..1f4bed50f4 100644 --- a/linux-user/sparc/target_cpu.h +++ b/linux-user/sparc/target_cpu.h @@ -20,6 +20,12 @@ #ifndef SPARC_TARGET_CPU_H #define SPARC_TARGET_CPU_H +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) +# define TARGET_STACK_BIAS 2047 +#else +# define TARGET_STACK_BIAS 0 +#endif + static inline void cpu_clone_regs_child(CPUSPARCState *env, target_ulong newsp, unsigned flags) { @@ -40,6 +46,7 @@ static inline void cpu_clone_regs_child(CPUSPARCState *env, target_ulong newsp, #endif /* ??? The kernel appears to copy one stack frame to the new stack. */ /* ??? The kernel force aligns the new stack. */ + /* Userspace provides a biased stack pointer value. */ env->regwptr[WREG_SP] = newsp; } @@ -77,7 +84,7 @@ static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls) static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state) { - return state->regwptr[WREG_SP]; + return state->regwptr[WREG_SP] + TARGET_STACK_BIAS; } #endif |