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* cygtls.h (CYGTLS_INITIALIZED): Change to a little more unlikely value.

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(CYGTLSMAGIC): Delete.
* dcrt0.cc (dll_crt0_0): Call sigproc_init during init startup.
(_dll_crt0): Don't worry about sync_startup.  Just wait for sigthread here.
* dll_init.cc (cygwin_detach_dll): Only pick up tls version of retaddr if we
have a valid tls.
* fork.cc (frok::child): Remove sigproc_init initialization since it happens
much earlier now.
* gendef: Recognize SIGFE_MAYBE.
(fefunc): Generate calls to _sigfe_maybe, if appropriate.
(_sigfe_maybe): New function.
* init.cc (search_for): Always initialize search_for, even on fork.
(calibration_thread): Delete.
(calibration_id): Delete.
(prime_threads): Delete.
(munge_threadfunc): Remove calibration_thread special case.  Avoid calling
thread function if we haven't yet hit the "search_for" thread.
(dll_entry): Remove prime_threads call.  Only call munge_threadfunc when
hwait_sig is active.  Ditto.  for _my_tls.remove ();
* sigproc.cc (hwait_sig): Make global.
(sigproc_init): Don't bother with sync_startup.
(sig_send): Treat flush as a no-op when signals are held.
(wait_sig): Cause signals to be held after fork.
This commit is contained in:
Christopher Faylor
2006-03-12 23:57:05 +00:00
parent 0b9632d1fa
commit 51f90b2f01
9 changed files with 80 additions and 70 deletions
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27
winsup/cygwin/gendef
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@@ -1,5 +1,5 @@
#!/usr/bin/perl
# Copyright 2003, 2004, 2005 Red Hat, Inc.
# Copyright 2003, 2004, 2005, 2006 Red Hat, Inc.
#
# This file is part of Cygwin.
#
@@ -43,12 +43,14 @@ for (@in) {
chomp;
if (/=/o) {
if (s/\s+NOSIGFE\s*$//) {
} elsif (s/ SIGFE$//) {
my $func = (split(' '))[2];
$sigfe{$func} = '_sigfe_' . $func;
# nothing
} elsif (s/ SIGFE(_MAYBE)?$//) {
my $func = (split(' '))[2];
my $maybe = lc $1 . '_';
$sigfe{$func} = '_sigfe' . $maybe . $func;
}
} else {
my ($func, $sigfe) = m%^\s*(\S+)(?:\s+((?:NO)?SIGR?FE))?$%o;
my ($func, $sigfe) = m%^\s*(\S+)(?:\s+((?:NO)?SIGFE(?:_MAYBE)?))?$%o;
if (defined($sigfe) && $sigfe =~ /^NO/o) {
$_ = $func;
} else {
@@ -83,13 +85,14 @@ close SIGFE;
sub fefunc {
my $func = '_' . shift;
my $fe = '_' . shift;
my $sigfe_func = ($fe =~ /^(.*)$func/)[0];
my $extra;
my $res = <<EOF;
.extern $func
.global $fe
$fe:
pushl \$$func
jmp __sigfe
jmp $sigfe_func
EOF
if (!$main::first++) {
@@ -97,6 +100,18 @@ EOF
.text
.stabs "_sigfe:F(0,1)",36,0,0,__sigfe
__sigfe_maybe:
pushl %ebx
pushl %edx
movl %fs:4,%ebx # location of bottom of stack
movl $tls::initialized(%ebx),%eax
cmpl \$0xc763173f,%eax # initialized?
je 1f
popl %edx
popl %ebx
popl %eax
jmp *%eax
__sigfe:
pushl %ebx
pushl %edx