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* path.cc (mount_info::cygdrive_posix_path): Don't add trailing slash if

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referring to something like c:\.
* dcrt0.cc (dll_crt0_1): Move uinfo initialization prior to sig_send
initialization to give signal thread a chance to finish.
* debug.cc (WFSO): Move to sigproc.cc
(WFMO): Ditto.
* exceptions.cc (interruptible): Allocate slightly more space for directory
just for paranoia's sake.
(call_handler): Eliminate nonmain argument.  Determine if main thread has set a
frame pointer and use it if so.
(sig_handle): Eliminate nonmain argument.
* net.cc: Record frame information in appropriate routines throughout.
* select.cc (select): Ditto.
* sigproc.cc: Use sigthread structure to record mainthread id throughout.
(sig_send): Record frame information for signal handler.
(wait_sig): Reflect argument change in sig_handle.
(WFSO): Move here and record frame information for signal handler.
(WFMO): Ditto.
* sigproc.h: Implement new "sigthread" class.  Implement "sigframe" class for
manipulating signal frame info.
* thread.cc (__pthread_kill): Use standard _kill() function rather than calling
sig_send directly.
* winsup.h: Eliminate ebp element from signal_dispatch class.
This commit is contained in:
Christopher Faylor
2000-05-17 05:49:51 +00:00
parent 8c1c1f1a43
commit 6201d15e3c
15 changed files with 182 additions and 69 deletions
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51
winsup/cygwin/sigproc.h
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@ -32,12 +32,60 @@ typedef struct struct_waitq
HANDLE thread_ev;
} waitq;
class muto;
struct sigthread
{
DWORD id;
DWORD frame;
muto *lock;
sigthread () : id (0), frame (0), lock (0) {}
};
class sigframe
{
private:
sigthread *st;
public:
void set (sigthread &t, int up = 1)
{
if (!t.lock)
t.lock = new_muto (FALSE, "sigthread");
t.lock->acquire ();
st = &t;
t.frame = (DWORD) (up ? __builtin_frame_address (1) :
__builtin_frame_address (0));
t.lock->release ();
}
sigframe () {st = NULL;}
sigframe (sigthread &t, int up = 1)
{
if (!t.frame || t.id == GetCurrentThreadId ())
set (t, up);
else
st = NULL;
}
~sigframe ()
{
if (st)
{
st->lock->acquire ();
st->frame = 0;
st->lock->release ();
st = NULL;
}
}
};
extern sigthread mainthread;
extern HANDLE signal_arrived;
BOOL __stdcall my_parent_is_alive ();
extern "C" int __stdcall sig_dispatch_pending (int force = FALSE) __asm__ ("sig_dispatch_pending");
extern "C" void __stdcall set_process_mask (sigset_t newmask);
int __stdcall sig_handle (int, int);
int __stdcall sig_handle (int);
void __stdcall sig_clear (int);
void __stdcall sig_set_pending (int);
int __stdcall handle_sigsuspend (sigset_t);
@ -53,7 +101,6 @@ void __stdcall signal_fixup_after_fork ();
extern char myself_nowait_dummy[];
extern char myself_nowait_nonmain_dummy[];
extern DWORD maintid;
extern HANDLE hExeced; // Process handle of new window
// process created by spawn_guts()