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Translate signal values in exit status.

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Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2009-04-16 15:17:02 +00:00
parent aaf4ad3913
commit 1d9d8b551d
3 changed files with 18 additions and 2 deletions
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1
linux-user/qemu.h
View File

@ -201,6 +201,7 @@ int queue_signal(CPUState *env, int sig, target_siginfo_t *info);
void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
int target_to_host_signal(int sig);
int host_to_target_signal(int sig);
long do_sigreturn(CPUState *env);
long do_rt_sigreturn(CPUState *env);
abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);

2
linux-user/signal.c
View File

@ -102,7 +102,7 @@ static inline int sas_ss_flags(unsigned long sp)
: on_sig_stack(sp) ? SS_ONSTACK : 0);
}
static inline int host_to_target_signal(int sig)
int host_to_target_signal(int sig)
{
if (sig > 64)
return sig;

17
linux-user/syscall.c
View File

@ -3643,6 +3643,20 @@ static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
}
#endif
/* Map host to target signal numbers for the wait family of syscalls.
Assume all other status bits are the same. */
static int host_to_target_waitstatus(int status)
{
if (WIFSIGNALED(status)) {
return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
}
if (WIFSTOPPED(status)) {
return (host_to_target_signal(WSTOPSIG(status)) << 8)
| (status & 0xff);
}
return status;
}
int get_osversion(void)
{
static int osversion;
@ -3786,7 +3800,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
int status;
ret = get_errno(waitpid(arg1, &status, arg3));
if (!is_error(ret) && arg2
&& put_user_s32(status, arg2))
&& put_user_s32(host_to_target_waitstatus(status), arg2))
goto efault;
}
break;
@ -5136,6 +5150,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
if (!is_error(ret)) {
if (status_ptr) {
status = host_to_target_waitstatus(status);
if (put_user_s32(status, status_ptr))
goto efault;
}