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newlib-cygwin
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* sigproc.h [sigthread]: Add exception field. 

[sigframe::~sigframe]: Clear exception field.
[sigframe::set]: Set exception field from caller.
* sigproc.cc (sig_send): Set exception field when frame pointer is passed in.
* exceptions.cc (interrupt_on_return): Always treat exception as interruptible.
This commit is contained in:
Christopher Faylor 2001-04-25 19:11:37 +00:00
parent 86699e1555
commit 968d91b2e6
4 changed files with 16 additions and 3 deletions
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10
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,13 @@
Wed Apr 25 15:07:37 2001 Christopher Faylor <cgf@cygnus.com>
* sigproc.h [sigthread]: Add exception field. [sigframe::~sigframe]:
Clear exception field. [sigframe::set]: Set exception field from
caller.
* sigproc.cc (sig_send): Set exception field when frame pointer is
passed in.
* exceptions.cc (interrupt_on_return): Always treat exception as
interruptible.
2001-04-25 Egor Duda <deo@logos-m.ru> 2001-04-25 Egor Duda <deo@logos-m.ru>
* cygwin.din: Export asctime_r, ctime_r, gmtime_r, localtime_r * cygwin.din: Export asctime_r, ctime_r, gmtime_r, localtime_r

2
winsup/cygwin/exceptions.cc
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@ -735,7 +735,7 @@ interrupt_on_return (sigthread *th, int sig, void *handler, struct sigaction& si
thestack.init (ebp); /* Initialize from the input CONTEXT */ thestack.init (ebp); /* Initialize from the input CONTEXT */
for (i = 0; i < 32 && thestack++ ; i++) for (i = 0; i < 32 && thestack++ ; i++)
if (interruptible (thestack.sf.AddrReturn.Offset)) if (th->exception || interruptible (thestack.sf.AddrReturn.Offset))
{ {
DWORD *addr_retaddr = ((DWORD *)thestack.sf.AddrFrame.Offset) + 1; DWORD *addr_retaddr = ((DWORD *)thestack.sf.AddrFrame.Offset) + 1;
if (*addr_retaddr == thestack.sf.AddrReturn.Offset) if (*addr_retaddr == thestack.sf.AddrReturn.Offset)

2
winsup/cygwin/sigproc.cc
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@ -680,7 +680,7 @@ sig_send (_pinfo *p, int sig, DWORD ebp)
{ {
thiscatch = sigcatch_main; thiscatch = sigcatch_main;
thiscomplete = sigcomplete_main; thiscomplete = sigcomplete_main;
thisframe.set (mainthread, ebp); thisframe.set (mainthread, ebp, 1);
} }
} }
else if (!(thiscatch = getsem (p, "sigcatch", 0, 0))) else if (!(thiscatch = getsem (p, "sigcatch", 0, 0)))

5
winsup/cygwin/sigproc.h
View File

@ -40,6 +40,7 @@ struct sigthread
DWORD frame; DWORD frame;
CRITICAL_SECTION lock; CRITICAL_SECTION lock;
LONG winapi_lock; LONG winapi_lock;
BOOL exception;
bool get_winapi_lock (int test = 0); bool get_winapi_lock (int test = 0);
void release_winapi_lock (); void release_winapi_lock ();
void init (const char *s); void init (const char *s);
@ -55,6 +56,7 @@ private:
{ {
EnterCriticalSection (&st->lock); EnterCriticalSection (&st->lock);
st->frame = 0; st->frame = 0;
st->exception = 0;
st->release_winapi_lock (); st->release_winapi_lock ();
LeaveCriticalSection (&st->lock); LeaveCriticalSection (&st->lock);
st = NULL; st = NULL;
@ -62,11 +64,12 @@ private:
} }
public: public:
void set (sigthread &t, DWORD ebp) void set (sigthread &t, DWORD ebp, bool is_exception = 0)
{ {
DWORD oframe = t.frame; DWORD oframe = t.frame;
st = &t; st = &t;
t.frame = ebp; t.frame = ebp;
t.exception = is_exception;
if (!oframe) if (!oframe)
t.get_winapi_lock (); t.get_winapi_lock ();
} }