diff options
Diffstat (limited to 'winsup/cygwin/exceptions.cc')
| -rw-r--r-- | winsup/cygwin/exceptions.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc index a1d7019fe..54c5d59e0 100644 --- a/winsup/cygwin/exceptions.cc +++ b/winsup/cygwin/exceptions.cc @@ -1178,7 +1178,13 @@ reset_signal_arrived () sigproc_printf ("reset signal_arrived"); } -void unused_sig_wrapper () +static void unused_sig_wrapper () __attribute__((const, unused)); + +#undef errno +#define errno ((DWORD volatile) _impure_ptr) + (((char *) &_impure_ptr->_errno) - ((char *) _impure_ptr)) + +static void +unused_sig_wrapper () { /* Signal cleanup stuff. Cleans up stack (too bad that we didn't prototype signal handlers as __stdcall), calls _set_process_mask @@ -1199,8 +1205,7 @@ _sigreturn: \n\ 1: popl %%eax # saved errno \n\ testl %%eax,%%eax # Is it < 0 \n\ jl 2f # yup. ignore it \n\ - movl %1,%%ebx \n\ - movl %%eax,(%%ebx) \n\ + movl %%eax,%1 \n\ 2: popl %%eax \n\ popl %%ebx \n\ popl %%ecx \n\ @@ -1240,7 +1245,7 @@ _sigdelayed0: \n\ popl %%eax \n\ jmp *%%eax \n\ __no_sig_end: \n\ -" : "=m" (sigsave.sig) : "m" (&_impure_ptr->_errno), +" : "=m" (sigsave.sig): "X" (errno), "g" (sigsave.retaddr), "g" (sigsave.oldmask), "g" (sigsave.sig), "g" (sigsave.func), "g" (sigsave.saved_errno), "g" (sigsave.newmask) ); |