diff options
Diffstat (limited to 'linux-user/sparc')
| -rw-r--r-- | linux-user/sparc/syscall.h | 7 | ||||
| -rw-r--r-- | linux-user/sparc/target_cpu.h | 16 |
2 files changed, 19 insertions, 4 deletions
diff --git a/linux-user/sparc/syscall.h b/linux-user/sparc/syscall.h index 5a9bb7e546..4cd64bf41d 100644 --- a/linux-user/sparc/syscall.h +++ b/linux-user/sparc/syscall.h @@ -7,3 +7,10 @@ struct target_pt_regs { }; #define UNAME_MACHINE "sun4" + +/* SPARC kernels don't define this in their Kconfig, but they have the + * same ABI as if they did, implemented by sparc-specific code which fishes + * directly in the u_regs() struct for half the parameters in sparc_do_fork() + * and copy_thread(). + */ +#define TARGET_CLONE_BACKWARDS diff --git a/linux-user/sparc/target_cpu.h b/linux-user/sparc/target_cpu.h index 5a620a2bb7..4944d465a2 100644 --- a/linux-user/sparc/target_cpu.h +++ b/linux-user/sparc/target_cpu.h @@ -25,12 +25,20 @@ static inline void cpu_clone_regs(CPUSPARCState *env, target_ulong newsp) if (newsp) { env->regwptr[22] = newsp; } + /* syscall return for clone child: 0, and clear CF since + * this counts as a success return value. + */ env->regwptr[0] = 0; - /* FIXME: Do we also need to clear CF? */ - /* XXXXX */ - printf("HELPME: %s:%d\n", __FILE__, __LINE__); +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) + env->xcc &= ~PSR_CARRY; +#else + env->psr &= ~PSR_CARRY; +#endif } -/* TODO: need to implement cpu_set_tls() */ +static inline void cpu_set_tls(CPUSPARCState *env, target_ulong newtls) +{ + env->gregs[7] = newtls; +} #endif |