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* autoload.cc (noload): Use proper method for multiline strings or newer gcc's

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complain.
* exceptions.cc (unused_sig_wrapper): Ditto.
* fhandler.h (fhandler_base): Make get_io_handle and friends return self.
* fhandler_tty.cc (fhandler_pty_common::close_on_exec): Accomodate DEBUGGING
flag to avoid spurious warnings when inheritance is set.
This commit is contained in:
Christopher Faylor
2001-03-11 01:58:23 +00:00
parent 7cf3b655ec
commit 2116a17508
5 changed files with 186 additions and 167 deletions
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126
winsup/cygwin/exceptions.cc
View File

@ -1144,69 +1144,69 @@ void unused_sig_wrapper ()
prototype signal handlers as __stdcall), calls _set_process_mask
to restore any mask, restores any potentially clobbered registers
and returns to original caller. */
__asm__ volatile ("
.text
_sigreturn:
addl $4,%%esp # Remove argument
movl %%esp,%%ebp
addl $36,%%ebp
cmpl $0,%4 # Did a signal come in?
jz 1f # No, if zero
call _call_signal_handler@0 # yes handle the signal
# FIXME: There is a race here. The signal handler could set up
# the sigsave structure between _call_signal_handler and the
# end of _set_process_mask. This would make cygwin detect an
# incorrect signal mask.
1: call _set_process_mask@4
popl %%eax # saved errno
testl %%eax,%%eax # Is it < 0
jl 2f # yup. ignore it
movl %1,%%ebx
movl %%eax,(%%ebx)
2: popl %%eax
popl %%ebx
popl %%ecx
popl %%edx
popl %%edi
popl %%esi
popf
popl %%ebp
ret
__no_sig_start:
_sigdelayed:
pushl %2 # original return address
_sigdelayed0:
pushl %%ebp
movl %%esp,%%ebp
pushf
pushl %%esi
pushl %%edi
pushl %%edx
pushl %%ecx
pushl %%ebx
pushl %%eax
pushl %7 # saved errno
pushl %3 # oldmask
pushl %4 # signal argument
pushl $_sigreturn
call _reset_signal_arrived@0
pushl %5 # signal number
movl $0,%0 # zero the signal number as a
# flag to the signal handler thread
# that it is ok to set up sigsave
pushl %8
call _set_process_mask@4
popl %%eax
jmp *%%eax
__no_sig_end:
__asm__ volatile ("\n\
.text\n\
\n\
_sigreturn:\n\
addl $4,%%esp # Remove argument\n\
movl %%esp,%%ebp\n\
addl $36,%%ebp\n\
\n\
cmpl $0,%4 # Did a signal come in?\n\
jz 1f # No, if zero\n\
call _call_signal_handler@0 # yes handle the signal\n\
\n\
# FIXME: There is a race here. The signal handler could set up\n\
# the sigsave structure between _call_signal_handler and the\n\
# end of _set_process_mask. This would make cygwin detect an\n\
# incorrect signal mask.\n\
\n\
1: call _set_process_mask@4\n\
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\
2: popl %%eax\n\
popl %%ebx\n\
popl %%ecx\n\
popl %%edx\n\
popl %%edi\n\
popl %%esi\n\
popf\n\
popl %%ebp\n\
ret\n\
\n\
__no_sig_start:\n\
_sigdelayed:\n\
pushl %2 # original return address\n\
_sigdelayed0:\n\
pushl %%ebp\n\
movl %%esp,%%ebp\n\
pushf\n\
pushl %%esi\n\
pushl %%edi\n\
pushl %%edx\n\
pushl %%ecx\n\
pushl %%ebx\n\
pushl %%eax\n\
pushl %7 # saved errno\n\
pushl %3 # oldmask\n\
pushl %4 # signal argument\n\
pushl $_sigreturn\n\
\n\
call _reset_signal_arrived@0\n\
pushl %5 # signal number\n\
movl $0,%0 # zero the signal number as a\n\
# flag to the signal handler thread\n\
# that it is ok to set up sigsave\n\
\n\
pushl %8\n\
call _set_process_mask@4\n\
popl %%eax\n\
jmp *%%eax\n\
__no_sig_end:\n\
\n\
" : "=m" (sigsave.sig) : "m" (&_impure_ptr->_errno),
"g" (sigsave.retaddr), "g" (sigsave.oldmask), "g" (sigsave.sig),
"g" (sigsave.func), "o" (pid_offset), "g" (sigsave.saved_errno), "g" (sigsave.newmask)