libs/newlib-cygwin
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newlib-cygwin
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* fork.cc (fork_child): Invert sense of test which defeated correct handling in 

a fork from a non-main thread.
* dcrt0.cc (initial_env): Eliminate parameter and just send DebugBreak when
appropriate.
(dll_crt0_0): Reflect parameter change to initial_env.
(dll_crt0_1): Don't call initial_env.
This commit is contained in:
Christopher Faylor 2004-02-18 22:32:15 +00:00
parent 2d6c4a1a65
commit 0e061ecf96
3 changed files with 17 additions and 16 deletions
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10
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,13 @@
2004-02-18 Christopher Faylor <cgf@redhat.com>
* fork.cc (fork_child): Invert sense of test which defeated correct
handling in a fork from a non-main thread.
* dcrt0.cc (initial_env): Eliminate parameter and just send DebugBreak
when appropriate.
(dll_crt0_0): Reflect parameter change to initial_env.
(dll_crt0_1): Don't call initial_env.
2004-02-18 Christopher Faylor <cgf@redhat.com> 2004-02-18 Christopher Faylor <cgf@redhat.com>
* gendef (stabilize_sig_stack): New function. * gendef (stabilize_sig_stack): New function.

21
winsup/cygwin/dcrt0.cc
View File

@ -536,25 +536,15 @@ break_here ()
#endif #endif
static void static void
initial_env (bool first) initial_env ()
{ {
char buf[CYG_MAX_PATH + 1]; char buf[CYG_MAX_PATH + 1];
if (!first) if (GetEnvironmentVariable ("CYGWIN_TESTING", buf, sizeof (buf) - 1))
/* nothing */;
else if (GetEnvironmentVariable ("CYGWIN_TESTING", buf, sizeof (buf) - 1))
_cygwin_testing = 1; _cygwin_testing = 1;
#ifdef DEBUGGING #ifdef DEBUGGING
DWORD len; DWORD len;
static bool NO_COPY did_debugging_stuff;
#if 0
if (did_debugging_stuff || (first && wincap.cant_debug_dll_entry ()))
return;
#else
if (first)
return;
#endif
did_debugging_stuff = true;
if (GetEnvironmentVariable ("CYGWIN_SLEEP", buf, sizeof (buf) - 1)) if (GetEnvironmentVariable ("CYGWIN_SLEEP", buf, sizeof (buf) - 1))
{ {
DWORD ms = atoi (buf); DWORD ms = atoi (buf);
@ -583,6 +573,8 @@ initial_env (bool first)
{ {
error_start_init (p); error_start_init (p);
try_to_debug (); try_to_debug ();
console_printf ("*** Sending Break. gdb may issue spurious SIGTRAP message.\n");
DebugBreak ();
break_here (); break_here ();
} }
} }
@ -594,7 +586,7 @@ void __stdcall
dll_crt0_0 () dll_crt0_0 ()
{ {
wincap.init (); wincap.init ();
initial_env (true); initial_env ();
char zeros[sizeof (child_proc_info->zero)] = {0}; char zeros[sizeof (child_proc_info->zero)] = {0};
@ -736,7 +728,6 @@ dll_crt0_1 (char *)
/* FIXME: Verify forked children get their exception handler set up ok. */ /* FIXME: Verify forked children get their exception handler set up ok. */
exception_list cygwin_except_entry; exception_list cygwin_except_entry;
initial_env (false);
check_sanity_and_sync (user_data); check_sanity_and_sync (user_data);
malloc_init (); malloc_init ();

2
winsup/cygwin/fork.cc
View File

@ -246,7 +246,7 @@ fork_child (HANDLE& hParent, dll *&first_dll, bool& load_dlls)
/* If we've played with the stack, stacksize != 0. That means that /* If we've played with the stack, stacksize != 0. That means that
fork() was invoked from other than the main thread. Make sure that fork() was invoked from other than the main thread. Make sure that
the threadinfo information is properly set up. */ the threadinfo information is properly set up. */
if (!fork_info->stacksize) if (fork_info->stacksize)
{ {
_main_tls = &_my_tls; _main_tls = &_my_tls;
_main_tls->init_thread (NULL, NULL); _main_tls->init_thread (NULL, NULL);