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authorcvs2svn <>2003-12-22 03:59:56 +0300
committercvs2svn <>2003-12-22 03:59:56 +0300
commita4637e83f3bb0e88f86bf70dd3af439b37eaa385 (patch)
treeb7fd39fd22de6c5e5f2161b52e3f01143e29aad4 /winsup/cygwin/exceptions.cc
parent1fb9256d7e06dd6b0004fb625253464e4aaa6140 (diff)
This commit was manufactured by cvs2svn to create tag 'csl-arm-2003-q4'.csl-arm-2003-q4
Sprout from master 2003-12-22 00:59:55 UTC DJ Delorie <dj@redhat.com> '* configure.in (*-*-uclinux): Exclude newlib, libgloss and rda.' Cherrypick from cygnus 1999-05-03 07:29:06 UTC Richard Henderson <rth@redhat.com> '19990502 sourceware import': COPYING COPYING.LIB README config/mh-armpic config/mh-elfalphapic config/mh-m68kpic config/mh-papic config/mh-ppcpic config/mh-x86pic config/mt-d30v config/mt-netware config/mt-ospace etc/add-log.el etc/add-log.vi etc/configbuild.ein etc/configbuild.fig etc/configbuild.jin etc/configbuild.tin etc/configdev.ein etc/configdev.fig etc/configdev.jin etc/configdev.tin etc/configure etc/configure.in include/aout/hp.h include/aout/hppa.h include/coff/sym.h include/coff/symconst.h include/fopen-bin.h include/fopen-same.h include/fopen-vms.h include/gdbm.h include/mpw/ChangeLog include/mpw/README include/mpw/dir.h include/mpw/dirent.h include/mpw/fcntl.h include/mpw/grp.h include/mpw/mpw.h include/mpw/pwd.h include/mpw/stat.h include/mpw/sys/file.h include/mpw/sys/param.h include/mpw/sys/resource.h include/mpw/sys/stat.h include/mpw/sys/time.h include/mpw/sys/types.h include/mpw/utime.h include/mpw/varargs.h include/nlm/ppc-ext.h include/opcode/mn10200.h include/opcode/tahoe.h include/opcode/tic30.h makefile.vms move-if-change mpw-README mpw-build.in mpw-config.in mpw-configure mpw-install setup.com ylwrap Delete: djunpack.bat winsup/CYGWIN_LICENSE winsup/ChangeLog winsup/Makefile.common winsup/Makefile.in winsup/bz2lib/CHANGES winsup/bz2lib/ChangeLog winsup/bz2lib/LICENSE winsup/bz2lib/Makefile winsup/bz2lib/Makefile-libbz2_so winsup/bz2lib/Makefile.in winsup/bz2lib/README winsup/bz2lib/README.COMPILATION.PROBLEMS winsup/bz2lib/Y2K_INFO winsup/bz2lib/aclocal.m4 winsup/bz2lib/blocksort.c winsup/bz2lib/bzip2.1 winsup/bz2lib/bzip2.1.preformatted winsup/bz2lib/bzip2.c winsup/bz2lib/bzip2.txt winsup/bz2lib/bzip2recover.c winsup/bz2lib/bzlib.c winsup/bz2lib/bzlib.h winsup/bz2lib/bzlib_private.h winsup/bz2lib/compress.c winsup/bz2lib/configure winsup/bz2lib/configure.in winsup/bz2lib/crctable.c winsup/bz2lib/decompress.c winsup/bz2lib/dlltest.c 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winsup/w32api/include/tmschema.h winsup/w32api/include/unknwn.h winsup/w32api/include/userenv.h winsup/w32api/include/uxtheme.h winsup/w32api/include/vfw.h winsup/w32api/include/w32api.h winsup/w32api/include/winable.h winsup/w32api/include/winbase.h winsup/w32api/include/winber.h winsup/w32api/include/wincon.h winsup/w32api/include/wincrypt.h winsup/w32api/include/windef.h winsup/w32api/include/windows.h winsup/w32api/include/windowsx.h winsup/w32api/include/winerror.h winsup/w32api/include/wingdi.h winsup/w32api/include/wininet.h winsup/w32api/include/winioctl.h winsup/w32api/include/winldap.h winsup/w32api/include/winnetwk.h winsup/w32api/include/winnls.h winsup/w32api/include/winnt.h winsup/w32api/include/winperf.h winsup/w32api/include/winreg.h winsup/w32api/include/winresrc.h winsup/w32api/include/winsnmp.h winsup/w32api/include/winsock.h winsup/w32api/include/winsock2.h winsup/w32api/include/winspool.h winsup/w32api/include/winsvc.h winsup/w32api/include/winuser.h winsup/w32api/include/winver.h winsup/w32api/include/ws2spi.h winsup/w32api/include/ws2tcpip.h winsup/w32api/include/wsahelp.h winsup/w32api/include/wsipx.h winsup/w32api/include/wsnetbs.h winsup/w32api/include/wtypes.h winsup/w32api/include/zmouse.h winsup/w32api/install-sh winsup/w32api/lib/Makefile.in winsup/w32api/lib/advapi32.def winsup/w32api/lib/avicap32.def winsup/w32api/lib/avifil32.def winsup/w32api/lib/cap.def winsup/w32api/lib/comctl32.def winsup/w32api/lib/comdlg32.def winsup/w32api/lib/crypt32.def winsup/w32api/lib/ctl3d32.def winsup/w32api/lib/d3dim.def winsup/w32api/lib/d3drm.def winsup/w32api/lib/d3dxof.def winsup/w32api/lib/ddk/Makefile.in winsup/w32api/lib/ddk/apcups.def winsup/w32api/lib/ddk/cfgmgr32.def winsup/w32api/lib/ddk/dxapi.def winsup/w32api/lib/ddk/hal.def winsup/w32api/lib/ddk/hid.def winsup/w32api/lib/ddk/hidparse.def winsup/w32api/lib/ddk/mcd.def winsup/w32api/lib/ddk/ndis.def winsup/w32api/lib/ddk/ntoskrnl.def winsup/w32api/lib/ddk/scsiport.def winsup/w32api/lib/ddk/tdi.def winsup/w32api/lib/ddk/usbcamd.def winsup/w32api/lib/ddk/usbcamd2.def winsup/w32api/lib/ddk/videoprt.def winsup/w32api/lib/ddk/win32k.def winsup/w32api/lib/ddraw.def winsup/w32api/lib/dhcpcsvc.def winsup/w32api/lib/dinput.c winsup/w32api/lib/dinput.def winsup/w32api/lib/dlcapi.def winsup/w32api/lib/dplayx.def winsup/w32api/lib/dsetup.def winsup/w32api/lib/dsound.def winsup/w32api/lib/dxguid.c winsup/w32api/lib/faultrep.def winsup/w32api/lib/gdi32.def winsup/w32api/lib/glaux.def winsup/w32api/lib/glu32.def winsup/w32api/lib/glut.def winsup/w32api/lib/glut32.def winsup/w32api/lib/igmpagnt.def winsup/w32api/lib/imagehlp.def winsup/w32api/lib/imm32.def winsup/w32api/lib/iphlpapi.def winsup/w32api/lib/kernel32.c winsup/w32api/lib/kernel32.def winsup/w32api/lib/largeint.c winsup/w32api/lib/lz32.def winsup/w32api/lib/mapi32.def winsup/w32api/lib/mfcuia32.def winsup/w32api/lib/mgmtapi.def winsup/w32api/lib/mpr.def winsup/w32api/lib/msacm32.def winsup/w32api/lib/mshtml-uuid.c winsup/w32api/lib/msimg32.def winsup/w32api/lib/msvcp60.def winsup/w32api/lib/msvfw32.def winsup/w32api/lib/mswsock.def winsup/w32api/lib/nddeapi.def winsup/w32api/lib/netapi32.def winsup/w32api/lib/ntdll.def winsup/w32api/lib/odbc32.def winsup/w32api/lib/odbccp32.def winsup/w32api/lib/ole32.def winsup/w32api/lib/oleacc.def winsup/w32api/lib/oleaut32.def winsup/w32api/lib/olecli32.def winsup/w32api/lib/oledlg.def winsup/w32api/lib/olepro32.def winsup/w32api/lib/olesvr32.def winsup/w32api/lib/opengl32.def winsup/w32api/lib/penwin32.def winsup/w32api/lib/pkpd32.def winsup/w32api/lib/powrprof.def winsup/w32api/lib/psapi.def winsup/w32api/lib/rapi.def winsup/w32api/lib/rasapi32.def winsup/w32api/lib/rasdlg.def winsup/w32api/lib/res.rc winsup/w32api/lib/rpcdce4.def winsup/w32api/lib/rpcns4.def winsup/w32api/lib/rpcrt4.def winsup/w32api/lib/scrnsave.c winsup/w32api/lib/secur32.def winsup/w32api/lib/setupapi.def winsup/w32api/lib/shell32.c winsup/w32api/lib/shell32.def winsup/w32api/lib/shfolder.def winsup/w32api/lib/shlwapi.def winsup/w32api/lib/snmpapi.def winsup/w32api/lib/svrapi.def winsup/w32api/lib/tapi32.def winsup/w32api/lib/test.c winsup/w32api/lib/th32.def winsup/w32api/lib/thunk32.def winsup/w32api/lib/url.def winsup/w32api/lib/user32.def winsup/w32api/lib/userenv.def winsup/w32api/lib/uuid.c winsup/w32api/lib/uxtheme.def winsup/w32api/lib/vdmdbg.def winsup/w32api/lib/version.def winsup/w32api/lib/vfw32.mri winsup/w32api/lib/win32spl.def winsup/w32api/lib/wininet.def winsup/w32api/lib/winmm.def winsup/w32api/lib/winspool.def winsup/w32api/lib/winstrm.def winsup/w32api/lib/wldap32.def winsup/w32api/lib/wow32.def winsup/w32api/lib/ws2_32.def winsup/w32api/lib/wsnmp32.def winsup/w32api/lib/wsock32.def winsup/w32api/lib/wst.def
Diffstat (limited to 'winsup/cygwin/exceptions.cc')
-rw-r--r--winsup/cygwin/exceptions.cc1237
1 files changed, 0 insertions, 1237 deletions
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
deleted file mode 100644
index ffa6d4d3b..000000000
--- a/winsup/cygwin/exceptions.cc
+++ /dev/null
@@ -1,1237 +0,0 @@
-/* exceptions.cc
-
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license. Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include "winsup.h"
-#include <imagehlp.h>
-#include <stdlib.h>
-#include <setjmp.h>
-#include <assert.h>
-
-#include "exceptions.h"
-#include "sync.h"
-#include "pinfo.h"
-#include "cygtls.h"
-#include "sigproc.h"
-#include "cygerrno.h"
-#define NEED_VFORK
-#include "perthread.h"
-#include "shared_info.h"
-#include "perprocess.h"
-#include "security.h"
-#include "cygthread.h"
-
-#define CALL_HANDLER_RETRY 20
-
-char debugger_command[2 * CYG_MAX_PATH + 20];
-
-extern "C" {
-static int handle_exceptions (EXCEPTION_RECORD *, void *, CONTEXT *, void *);
-extern void sigdelayed ();
-};
-
-_threadinfo NO_COPY dummy_thread;
-_threadinfo NO_COPY *_last_thread = &dummy_thread;
-
-CRITICAL_SECTION NO_COPY _threadinfo::protect_linked_list;
-
-extern DWORD sigtid;
-
-extern HANDLE hExeced;
-extern DWORD dwExeced;
-
-static BOOL WINAPI ctrl_c_handler (DWORD);
-static void signal_exit (int) __attribute__ ((noreturn));
-static char windows_system_directory[1024];
-static size_t windows_system_directory_length;
-
-/* This is set to indicate that we have already exited. */
-
-static NO_COPY int exit_already = 0;
-static NO_COPY muto *mask_sync = NULL;
-
-NO_COPY static struct
-{
- unsigned int code;
- const char *name;
-} status_info[] =
-{
-#define X(s) s, #s
- { X (STATUS_ABANDONED_WAIT_0) },
- { X (STATUS_ACCESS_VIOLATION) },
- { X (STATUS_ARRAY_BOUNDS_EXCEEDED) },
- { X (STATUS_BREAKPOINT) },
- { X (STATUS_CONTROL_C_EXIT) },
- { X (STATUS_DATATYPE_MISALIGNMENT) },
- { X (STATUS_FLOAT_DENORMAL_OPERAND) },
- { X (STATUS_FLOAT_DIVIDE_BY_ZERO) },
- { X (STATUS_FLOAT_INEXACT_RESULT) },
- { X (STATUS_FLOAT_INVALID_OPERATION) },
- { X (STATUS_FLOAT_OVERFLOW) },
- { X (STATUS_FLOAT_STACK_CHECK) },
- { X (STATUS_FLOAT_UNDERFLOW) },
- { X (STATUS_GUARD_PAGE_VIOLATION) },
- { X (STATUS_ILLEGAL_INSTRUCTION) },
- { X (STATUS_INTEGER_DIVIDE_BY_ZERO) },
- { X (STATUS_INTEGER_OVERFLOW) },
- { X (STATUS_INVALID_DISPOSITION) },
- { X (STATUS_IN_PAGE_ERROR) },
- { X (STATUS_NONCONTINUABLE_EXCEPTION) },
- { X (STATUS_NO_MEMORY) },
- { X (STATUS_PENDING) },
- { X (STATUS_PRIVILEGED_INSTRUCTION) },
- { X (STATUS_SINGLE_STEP) },
- { X (STATUS_STACK_OVERFLOW) },
- { X (STATUS_TIMEOUT) },
- { X (STATUS_USER_APC) },
- { X (STATUS_WAIT_0) },
- { 0, 0 }
-#undef X
-};
-
-/* Initialization code. */
-
-// Set up the exception handler for the current thread. The PowerPC & Mips
-// use compiler generated tables to set up the exception handlers for each
-// region of code, and the kernel walks the call list until it finds a region
-// of code that handles exceptions. The x86 on the other hand uses segment
-// register fs, offset 0 to point to the current exception handler.
-
-asm (".equ __except_list,0");
-
-extern exception_list *_except_list asm ("%fs:__except_list");
-
-static void
-init_exception_handler (exception_list *el)
-{
- el->handler = handle_exceptions;
- el->prev = _except_list;
- _except_list = el;
-}
-
-void
-init_console_handler ()
-{
- (void) SetConsoleCtrlHandler (ctrl_c_handler, FALSE);
- if (!SetConsoleCtrlHandler (ctrl_c_handler, TRUE))
- system_printf ("SetConsoleCtrlHandler failed, %E");
-}
-
-extern "C" void
-init_exceptions (exception_list *el)
-{
- init_exception_handler (el);
-}
-
-void
-_threadinfo::set_state (bool is_exception)
-{
- initialized = CYGTLS_INITIALIZED + is_exception;
-}
-
-void
-_threadinfo::reset_exception ()
-{
- if (initialized == CYGTLS_EXCEPTION)
- {
-#ifdef DEBUGGING
- debug_printf ("resetting stack after an exception stack %p, stackptr %p", stack, stackptr);
-#endif
- set_state (false);
- stackptr--;
- }
-}
-
-void
-_threadinfo::call (DWORD (*func) (void *, void *), void *arg)
-{
- char buf[CYGTLS_PADSIZE];
- _my_tls.call2 (func, arg, buf);
-}
-
-void
-_threadinfo::call2 (DWORD (*func) (void *, void *), void *arg, void *buf)
-{
- init_thread (buf);
- ExitThread (func (arg, buf));
-}
-
-void
-_threadinfo::init ()
-{
- InitializeCriticalSection (&protect_linked_list);
-}
-
-void
-_threadinfo::init_thread (void *x)
-{
- if (x)
- {
- memset (this, 0, sizeof (*this));
- stackptr = stack;
- }
-
- EnterCriticalSection (&protect_linked_list);
- prev = _last_thread;
- _last_thread->next = this;
- _last_thread = this;
- LeaveCriticalSection (&protect_linked_list);
-
- set_state (false);
- errno_addr = &errno;
-}
-
-void
-_threadinfo::remove ()
-{
- EnterCriticalSection (&protect_linked_list);
- if (prev)
- {
- prev->next = next;
- if (next)
- next->prev = prev;
- if (this == _last_thread)
- _last_thread = prev;
- prev = next = NULL;
- }
- LeaveCriticalSection (&protect_linked_list);
-}
-
-void
-_threadinfo::push (__stack_t addr, bool exception)
-{
- *stackptr++ = (__stack_t) addr;
- set_state (exception);
-}
-
-__stack_t
-_threadinfo::pop ()
-{
-#ifdef DEBUGGING
- assert (stackptr > stack);
-#endif
- __stack_t res = *--stackptr;
-#ifdef DEBUGGING
- *stackptr = 0;
- debug_printf ("popped %p, stack %p, stackptr %p", res, stack, stackptr);
-#endif
- return res;
-}
-
-extern "C" void
-error_start_init (const char *buf)
-{
- if (!buf || !*buf)
- {
- debugger_command[0] = '\0';
- return;
- }
-
- char pgm[CYG_MAX_PATH + 1];
- if (!GetModuleFileName (NULL, pgm, CYG_MAX_PATH))
- strcpy (pgm, "cygwin1.dll");
- for (char *p = strchr (pgm, '\\'); p; p = strchr (p, '\\'))
- *p = '/';
-
- __small_sprintf (debugger_command, "%s \"%s\"", buf, pgm);
-}
-
-static void
-open_stackdumpfile ()
-{
- if (myself->progname[0])
- {
- const char *p;
- /* write to progname.stackdump if possible */
- if (!myself->progname[0])
- p = "unknown";
- else if ((p = strrchr (myself->progname, '\\')))
- p++;
- else
- p = myself->progname;
- char corefile[strlen (p) + sizeof (".stackdump")];
- __small_sprintf (corefile, "%s.stackdump", p);
- HANDLE h = CreateFile (corefile, GENERIC_WRITE, 0, &sec_none_nih,
- CREATE_ALWAYS, 0, 0);
- if (h != INVALID_HANDLE_VALUE)
- {
- if (!myself->ppid_handle)
- system_printf ("Dumping stack trace to %s", corefile);
- else
- debug_printf ("Dumping stack trace to %s", corefile);
- SetStdHandle (STD_ERROR_HANDLE, h);
- }
- }
-}
-
-/* Utilities for dumping the stack, etc. */
-
-static void
-exception (EXCEPTION_RECORD *e, CONTEXT *in)
-{
- const char *exception_name = NULL;
-
- if (e)
- {
- for (int i = 0; status_info[i].name; i++)
- {
- if (status_info[i].code == e->ExceptionCode)
- {
- exception_name = status_info[i].name;
- break;
- }
- }
- }
-
-#ifdef __i386__
-#define HAVE_STATUS
- if (exception_name)
- small_printf ("Exception: %s at eip=%08x\r\n", exception_name, in->Eip);
- else
- small_printf ("Exception %d at eip=%08x\r\n", e->ExceptionCode, in->Eip);
- small_printf ("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\r\n",
- in->Eax, in->Ebx, in->Ecx, in->Edx, in->Esi, in->Edi);
- small_printf ("ebp=%08x esp=%08x program=%s\r\n",
- in->Ebp, in->Esp, myself->progname);
- small_printf ("cs=%04x ds=%04x es=%04x fs=%04x gs=%04x ss=%04x\r\n",
- in->SegCs, in->SegDs, in->SegEs, in->SegFs, in->SegGs, in->SegSs);
-#endif
-
-#ifndef HAVE_STATUS
- system_printf ("Had an exception");
-#endif
-}
-
-#ifdef __i386__
-/* Print a stack backtrace. */
-
-#define HAVE_STACK_TRACE
-
-/* A class for manipulating the stack. */
-class stack_info
-{
- int walk (); /* Uses the "old" method */
- char *next_offset () {return *((char **) sf.AddrFrame.Offset);}
- bool needargs;
- DWORD dummy_frame;
-public:
- STACKFRAME sf; /* For storing the stack information */
- void init (DWORD, bool, bool); /* Called the first time that stack info is needed */
-
- /* Postfix ++ iterates over the stack, returning zero when nothing is left. */
- int operator ++(int) { return walk (); }
-};
-
-/* The number of parameters used in STACKFRAME */
-#define NPARAMS (sizeof (thestack.sf.Params) / sizeof (thestack.sf.Params[0]))
-
-/* This is the main stack frame info for this process. */
-static NO_COPY stack_info thestack;
-
-/* Initialize everything needed to start iterating. */
-void
-stack_info::init (DWORD ebp, bool wantargs, bool goodframe)
-{
-# define debp ((DWORD *) ebp)
- memset (&sf, 0, sizeof (sf));
- if (!goodframe)
- sf.AddrFrame.Offset = ebp;
- else
- {
- dummy_frame = ebp;
- sf.AddrFrame.Offset = (DWORD) &dummy_frame;
- }
- sf.AddrReturn.Offset = debp[1];
- sf.AddrFrame.Mode = AddrModeFlat;
- needargs = wantargs;
-# undef debp
-}
-
-/* Walk the stack by looking at successive stored 'bp' frames.
- This is not foolproof. */
-int
-stack_info::walk ()
-{
- char **ebp;
- if ((ebp = (char **) next_offset ()) == NULL)
- return 0;
-
- sf.AddrFrame.Offset = (DWORD) ebp;
- sf.AddrPC.Offset = sf.AddrReturn.Offset;
-
- if (!sf.AddrPC.Offset)
- return 0; /* stack frames are exhausted */
-
- /* The return address always follows the stack pointer */
- sf.AddrReturn.Offset = (DWORD) *++ebp;
-
- if (needargs)
- /* The arguments follow the return address */
- for (unsigned i = 0; i < NPARAMS; i++)
- sf.Params[i] = (DWORD) *++ebp;
-
- return 1;
-}
-
-static void
-stackdump (DWORD ebp, int open_file, bool isexception)
-{
- extern unsigned long rlim_core;
-
- if (rlim_core == 0UL)
- return;
-
- if (open_file)
- open_stackdumpfile ();
-
- int i;
-
- thestack.init (ebp, 1, !isexception); /* Initialize from the input CONTEXT */
- small_printf ("Stack trace:\r\nFrame Function Args\r\n");
- for (i = 0; i < 16 && thestack++; i++)
- {
- small_printf ("%08x %08x ", thestack.sf.AddrFrame.Offset,
- thestack.sf.AddrPC.Offset);
- for (unsigned j = 0; j < NPARAMS; j++)
- small_printf ("%s%08x", j == 0 ? " (" : ", ", thestack.sf.Params[j]);
- small_printf (")\r\n");
- }
- small_printf ("End of stack trace%s",
- i == 16 ? " (more stack frames may be present)" : "");
-}
-
-/* Temporary (?) function for external callers to get a stack dump */
-extern "C" void
-cygwin_stackdump ()
-{
- CONTEXT c;
- c.ContextFlags = CONTEXT_FULL;
- GetThreadContext (GetCurrentThread (), &c);
- stackdump (c.Ebp, 0, 0);
-}
-
-#define TIME_TO_WAIT_FOR_DEBUGGER 10000
-
-extern "C" int
-try_to_debug (bool waitloop)
-{
- debug_printf ("debugger_command '%s'", debugger_command);
- if (*debugger_command == '\0' || being_debugged ())
- return 0;
-
- __small_sprintf (strchr (debugger_command, '\0'), " %u", GetCurrentProcessId ());
-
- LONG prio = GetThreadPriority (GetCurrentThread ());
- SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_HIGHEST);
- PROCESS_INFORMATION pi = {NULL, 0, 0, 0};
-
- STARTUPINFO si = {0, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL};
- si.lpReserved = NULL;
- si.lpDesktop = NULL;
- si.dwFlags = 0;
- si.cb = sizeof (si);
-
- /* FIXME: need to know handles of all running threads to
- suspend_all_threads_except (current_thread_id);
- */
-
- /* if any of these mutexes is owned, we will fail to start any cygwin app
- until trapped app exits */
-
- ReleaseMutex (title_mutex);
-
- /* prevent recursive exception handling */
- char* rawenv = GetEnvironmentStrings () ;
- for (char* p = rawenv; *p != '\0'; p = strchr (p, '\0') + 1)
- {
- if (strncmp (p, "CYGWIN=", sizeof ("CYGWIN=") - 1) == 0)
- {
- char* q = strstr (p, "error_start") ;
- /* replace 'error_start=...' with '_rror_start=...' */
- if (q) *q = '_' ;
- SetEnvironmentVariable ("CYGWIN", p + sizeof ("CYGWIN=")) ;
- break ;
- }
- }
-
- BOOL dbg;
- dbg = CreateProcess (NULL,
- debugger_command,
- NULL,
- NULL,
- FALSE,
- CREATE_NEW_CONSOLE | CREATE_NEW_PROCESS_GROUP,
- NULL,
- NULL,
- &si,
- &pi);
-
- if (!dbg)
- system_printf ("Failed to start debugger: %E");
- else
- {
- if (!waitloop)
- return 1;
- SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_IDLE);
- while (!being_debugged ())
- Sleep (0);
- Sleep (2000);
- small_printf ("*** continuing from debugger call\n");
- }
-
- SetThreadPriority (GetCurrentThread (), prio);
- return 0;
-}
-
-/* Main exception handler. */
-
-extern "C" DWORD __stdcall RtlUnwind (void *, void *, void *, DWORD);
-static int
-handle_exceptions (EXCEPTION_RECORD *e0, void *frame, CONTEXT *in0, void *)
-{
- static bool NO_COPY debugging = false;
- static int NO_COPY recursed = 0;
-
- if (debugging && ++debugging < 500000)
- {
- SetThreadPriority (hMainThread, THREAD_PRIORITY_NORMAL);
- return 0;
- }
-
- /* If we've already exited, don't do anything here. Returning 1
- tells Windows to keep looking for an exception handler. */
- if (exit_already)
- return 1;
-
- EXCEPTION_RECORD e = *e0;
- CONTEXT in = *in0;
-
- extern DWORD ret_here[];
- RtlUnwind (frame, ret_here, e0, 0);
- __asm__ volatile (".equ _ret_here,.");
-
- int sig;
- /* Coerce win32 value to posix value. */
- switch (e.ExceptionCode)
- {
- case STATUS_FLOAT_DENORMAL_OPERAND:
- case STATUS_FLOAT_DIVIDE_BY_ZERO:
- case STATUS_FLOAT_INEXACT_RESULT:
- case STATUS_FLOAT_INVALID_OPERATION:
- case STATUS_FLOAT_OVERFLOW:
- case STATUS_FLOAT_STACK_CHECK:
- case STATUS_FLOAT_UNDERFLOW:
- case STATUS_INTEGER_DIVIDE_BY_ZERO:
- case STATUS_INTEGER_OVERFLOW:
- sig = SIGFPE;
- break;
-
- case STATUS_ILLEGAL_INSTRUCTION:
- case STATUS_PRIVILEGED_INSTRUCTION:
- case STATUS_NONCONTINUABLE_EXCEPTION:
- sig = SIGILL;
- break;
-
- case STATUS_TIMEOUT:
- sig = SIGALRM;
- break;
-
- case STATUS_ACCESS_VIOLATION:
- case STATUS_DATATYPE_MISALIGNMENT:
- case STATUS_ARRAY_BOUNDS_EXCEEDED:
- case STATUS_GUARD_PAGE_VIOLATION:
- case STATUS_IN_PAGE_ERROR:
- case STATUS_NO_MEMORY:
- case STATUS_INVALID_DISPOSITION:
- case STATUS_STACK_OVERFLOW:
- sig = SIGSEGV;
- break;
-
- case STATUS_CONTROL_C_EXIT:
- sig = SIGINT;
- break;
-
- case STATUS_INVALID_HANDLE:
- /* CloseHandle will throw this exception if it is given an
- invalid handle. We don't care about the exception; we just
- want CloseHandle to return an error. This can be revisited
- if gcc ever supports Windows style structured exception
- handling. */
- return 0;
-
- default:
- /* If we don't recognize the exception, we have to assume that
- we are doing structured exception handling, and we let
- something else handle it. */
- return 1;
- }
-
- debug_printf ("In cygwin_except_handler exc %p at %p sp %p", e.ExceptionCode, in.Eip, in.Esp);
- debug_printf ("In cygwin_except_handler sig = %d at %p", sig, in.Eip);
-
- if (global_sigs[sig].sa_mask & SIGTOMASK (sig))
- syscall_printf ("signal %d, masked %p", sig, global_sigs[sig].sa_mask);
-
- debug_printf ("In cygwin_except_handler calling %p",
- global_sigs[sig].sa_handler);
-
- DWORD *ebp = (DWORD *)in.Esp;
- for (DWORD *bpend = (DWORD *) __builtin_frame_address (0); ebp > bpend; ebp--)
- if (*ebp == in.SegCs && ebp[-1] == in.Eip)
- {
- ebp -= 2;
- break;
- }
-
- if (!myself->progname[0]
- || GetCurrentThreadId () == sigtid
- || (void *) global_sigs[sig].sa_handler == (void *) SIG_DFL
- || (void *) global_sigs[sig].sa_handler == (void *) SIG_IGN
- || (void *) global_sigs[sig].sa_handler == (void *) SIG_ERR)
- {
- /* Print the exception to the console */
- if (1)
- {
- for (int i = 0; status_info[i].name; i++)
- {
- if (status_info[i].code == e.ExceptionCode)
- {
- if (!myself->ppid_handle)
- system_printf ("Exception: %s", status_info[i].name);
- break;
- }
- }
- }
-
- /* Another exception could happen while tracing or while exiting.
- Only do this once. */
- if (recursed++)
- system_printf ("Error while dumping state (probably corrupted stack)");
- else
- {
- if (try_to_debug (0))
- {
- debugging = true;
- return 0;
- }
-
- open_stackdumpfile ();
- exception (&e, &in);
- stackdump ((DWORD) ebp, 0, 1);
- }
-
- signal_exit (0x80 | sig); // Flag signal + core dump
- }
-
- _my_tls.push ((__stack_t) ebp, true);
- sig_send (NULL, sig, &_my_tls); // Signal myself
- return 1;
-}
-#endif /* __i386__ */
-
-#ifndef HAVE_STACK_TRACE
-void
-stack (void)
-{
- system_printf ("Stack trace not yet supported on this machine.");
-}
-#endif
-
-/* Utilities to call a user supplied exception handler. */
-
-#define SIG_NONMASKABLE (SIGTOMASK (SIGKILL) | SIGTOMASK (SIGSTOP))
-
-#ifdef __i386__
-#define HAVE_CALL_HANDLER
-
-/* Non-raceable sigsuspend
- * Note: This implementation is based on the Single UNIX Specification
- * man page. This indicates that sigsuspend always returns -1 and that
- * attempts to block unblockable signals will be silently ignored.
- * This is counter to what appears to be documented in some UNIX
- * man pages, e.g. Linux.
- */
-int __stdcall
-handle_sigsuspend (sigset_t tempmask)
-{
- sig_dispatch_pending ();
- sigset_t oldmask = myself->getsigmask (); // Remember for restoration
-
- set_signal_mask (tempmask & ~SIG_NONMASKABLE);// Let signals we're
- // interested in through.
- sigproc_printf ("old mask %x, new mask %x", oldmask, tempmask);
-
- pthread_testcancel ();
- pthread::cancelable_wait (signal_arrived, INFINITE);
-
- set_sig_errno (EINTR); // Per POSIX
-
- /* A signal dispatch function will have been added to our stack and will
- be hit eventually. Set the old mask to be restored when the signal
- handler returns. */
-
- _my_tls.oldmask = oldmask; // Will be restored by signal handler
- return -1;
-}
-
-extern DWORD exec_exit; // Possible exit value for exec
-
-extern "C" {
-static void
-sig_handle_tty_stop (int sig)
-{
- /* Silently ignore attempts to suspend if there is no accomodating
- cygwin parent to deal with this behavior. */
- if (!myself->ppid_handle)
- {
- myself->process_state &= ~PID_STOPPED;
- return;
- }
-
- myself->stopsig = sig;
- /* See if we have a living parent. If so, send it a special signal.
- It will figure out exactly which pid has stopped by scanning
- its list of subprocesses. */
- if (my_parent_is_alive ())
- {
- pinfo parent (myself->ppid);
- if (ISSTATE (parent, PID_NOCLDSTOP))
- sig_send (parent, SIGCHLD);
- }
- sigproc_printf ("process %d stopped by signal %d, myself->ppid_handle %p",
- myself->pid, sig, myself->ppid_handle);
- if (WaitForSingleObject (sigCONT, INFINITE) != WAIT_OBJECT_0)
- api_fatal ("WaitSingleObject failed, %E");
- return;
-}
-}
-
-int
-interruptible (DWORD pc)
-{
- int res;
- MEMORY_BASIC_INFORMATION m;
-
- memset (&m, 0, sizeof m);
- if (!VirtualQuery ((LPCVOID) pc, &m, sizeof m))
- sigproc_printf ("couldn't get memory info, pc %p, %E", pc);
-
- char *checkdir = (char *) alloca (windows_system_directory_length + 4);
- memset (checkdir, 0, sizeof (checkdir));
-
-# define h ((HMODULE) m.AllocationBase)
- /* Apparently Windows 95 can sometimes return bogus addresses from
- GetThreadContext. These resolve to a strange allocation base.
- These should *never* be treated as interruptible. */
- if (!h || m.State != MEM_COMMIT)
- res = 0;
- else if (h == user_data->hmodule)
- res = 1;
- else if (!GetModuleFileName (h, checkdir, windows_system_directory_length + 2))
- res = 0;
- else
- res = !strncasematch (windows_system_directory, checkdir,
- windows_system_directory_length);
- sigproc_printf ("pc %p, h %p, interruptible %d", pc, h, res);
-# undef h
- return res;
-}
-void __stdcall
-_threadinfo::interrupt_setup (int sig, void *handler,
- struct sigaction& siga, __stack_t retaddr)
-{
- __stack_t *retaddr_in_tls = stackptr - 1;
- push ((__stack_t) sigdelayed);
- oldmask = myself->getsigmask ();
- newmask = oldmask | siga.sa_mask | SIGTOMASK (sig);
- sa_flags = siga.sa_flags;
- func = (void (*) (int)) handler;
- saved_errno = -1; // Flag: no errno to save
- if (handler == sig_handle_tty_stop)
- {
- myself->stopsig = 0;
- myself->process_state |= PID_STOPPED;
- }
- this->sig = sig; // Should ALWAYS be second to last setting set to avoid a race
- *retaddr_in_tls = retaddr;
- /* Clear any waiting threads prior to dispatching to handler function */
- int res = SetEvent (signal_arrived); // For an EINTR case
- proc_subproc (PROC_CLEARWAIT, 1);
- sigproc_printf ("armed signal_arrived %p, res %d", signal_arrived, res);
-}
-
-bool
-_threadinfo::interrupt_now (CONTEXT *ctx, int sig, void *handler,
- struct sigaction& siga)
-{
- push (0);
- interrupt_setup (sig, handler, siga, (__stack_t) ctx->Eip);
- ctx->Eip = (DWORD) sigdelayed;
- SetThreadContext (*this, ctx); /* Restart the thread in a new location */
- return 1;
-}
-
-void __stdcall
-signal_fixup_after_fork ()
-{
- if (_my_tls.sig)
- {
- _my_tls.sig = 0;
- _my_tls.stackptr = _my_tls.stack + 1; // FIXME?
- set_signal_mask (_my_tls.oldmask);
- }
- sigproc_init ();
-}
-
-extern "C" void __stdcall
-set_sig_errno (int e)
-{
- *_my_tls.errno_addr = e;
- _my_tls.saved_errno = e;
- // sigproc_printf ("errno %d", e);
-}
-
-static int setup_handler (int, void *, struct sigaction&, _threadinfo *tls)
- __attribute__((regparm(3)));
-static int
-setup_handler (int sig, void *handler, struct sigaction& siga, _threadinfo *tls)
-{
- CONTEXT cx;
- bool interrupted = false;
-
- if (tls->sig)
- goto out;
-
- for (int i = 0; i < CALL_HANDLER_RETRY; i++)
- {
- __stack_t retaddr;
- __stack_t *retaddr_on_stack = tls->stackptr - 1;
- if (retaddr_on_stack >= tls->stack
- && (retaddr = InterlockedExchange ((LONG *) retaddr_on_stack, 0)))
- {
- if (!retaddr)
- continue;
- tls->reset_exception ();
- tls->interrupt_setup (sig, handler, siga, retaddr);
- sigproc_printf ("interrupted known cygwin routine");
- interrupted = true;
- break;
- }
-
- DWORD res;
- HANDLE hth = (HANDLE) *tls;
-
- /* Suspend the thread which will receive the signal. But first ensure that
- this thread doesn't have any mutos. (FIXME: Someday we should just grab
- all of the mutos rather than checking for them)
- For Windows 95, we also have to ensure that the addresses returned by GetThreadContext
- are valid.
- If one of these conditions is not true we loop for a fixed number of times
- since we don't want to stall the signal handler. FIXME: Will this result in
- noticeable delays?
- If the thread is already suspended (which can occur when a program has called
- SuspendThread on itself then just queue the signal. */
-
-#ifndef DEBUGGING
- sigproc_printf ("suspending mainthread");
-#else
- cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
- if (!GetThreadContext (hth, &cx))
- memset (&cx, 0, sizeof cx);
- sigproc_printf ("suspending mainthread PC %p", cx.Eip);
-#endif
- res = SuspendThread (hth);
- /* Just release the lock now since we hav suspended the main thread and it
- definitely can't be grabbing it now. This will have to change, of course,
- if/when we can send signals to other than the main thread. */
-
- /* Just set pending if thread is already suspended */
- if (res)
- {
- (void) ResumeThread (hth);
- break;
- }
-
- // FIXME - add check for reentering of DLL here
-
- muto *m;
- /* FIXME: Make multi-thread aware */
- for (m = muto_start.next; m != NULL; m = m->next)
- if (m->unstable () || m->owner () == cygthread::main_thread_id)
- {
- sigproc_printf ("suspended thread owns a muto (%s)", m->name);
- goto resume_thread;
- }
-
- cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
- if (!GetThreadContext (hth, &cx))
- system_printf ("couldn't get context of main thread, %E");
- else if (interruptible (cx.Eip))
- interrupted = tls->interrupt_now (&cx, sig, handler, siga);
-
- resume_thread:
- res = ResumeThread (hth);
-
- if (interrupted)
- break;
- sigproc_printf ("couldn't interrupt. trying again.");
- low_priority_sleep (0);
- }
-
-out:
- sigproc_printf ("signal %d %sdelivered", sig, interrupted ? "" : "not ");
- return interrupted;
-}
-#endif /* i386 */
-
-#ifndef HAVE_CALL_HANDLER
-#error "Need to supply machine dependent setup_handler"
-#endif
-
-/* Keyboard interrupt handler. */
-static BOOL WINAPI
-ctrl_c_handler (DWORD type)
-{
- static bool saw_close;
- _my_tls.remove ();
-
- /* Return FALSE to prevent an "End task" dialog box from appearing
- for each Cygwin process window that's open when the computer
- is shut down or console window is closed. */
-
- if (type == CTRL_SHUTDOWN_EVENT)
- {
-#if 0
- /* Don't send a signal. Only NT service applications and their child
- processes will receive this event and the services typically already
- handle the shutdown action when getting the SERVICE_CONTROL_SHUTDOWN
- control message. */
- sig_send (NULL, SIGTERM);
-#endif
- return FALSE;
- }
-
- if (myself->ctty != -1)
- {
- if (type == CTRL_CLOSE_EVENT)
- {
- saw_close = true;
- sig_send (NULL, SIGHUP);
- return FALSE;
- }
- if (!saw_close && type == CTRL_LOGOFF_EVENT)
- {
- /* Check if the process is actually associated with a visible
- window station, one which actually represents a visible desktop.
- If not, the CTRL_LOGOFF_EVENT doesn't concern this process. */
- if (has_visible_window_station ())
- sig_send (myself_nowait, SIGHUP);
- return FALSE;
- }
- }
-
- /* If we are a stub and the new process has a pinfo structure, let it
- handle this signal. */
- if (dwExeced && pinfo (dwExeced))
- return TRUE;
-
- /* We're only the process group leader when we have a valid pinfo structure.
- If we don't have one, then the parent "stub" will handle the signal. */
- if (!pinfo (cygwin_pid (GetCurrentProcessId ())))
- return TRUE;
-
- tty_min *t = cygwin_shared->tty.get_tty (myself->ctty);
- /* Ignore this if we're not the process group leader since it should be handled
- *by* the process group leader. */
- if (myself->ctty != -1 && t->getpgid () == myself->pid &&
- (GetTickCount () - t->last_ctrl_c) >= MIN_CTRL_C_SLOP)
- /* Otherwise we just send a SIGINT to the process group and return TRUE (to indicate
- that we have handled the signal). At this point, type should be
- a CTRL_C_EVENT or CTRL_BREAK_EVENT. */
- {
- t->last_ctrl_c = GetTickCount ();
- kill (-myself->pid, SIGINT);
- t->last_ctrl_c = GetTickCount ();
- return TRUE;
- }
-
- return TRUE;
-}
-
-/* Function used by low level sig wrappers. */
-extern "C" void __stdcall
-set_process_mask (sigset_t newmask)
-{
- set_signal_mask (newmask);
-}
-
-/* Set the signal mask for this process.
- Note that some signals are unmaskable, as in UNIX. */
-extern "C" void __stdcall
-set_signal_mask (sigset_t newmask, sigset_t& oldmask)
-{
- mask_sync->acquire (INFINITE);
- newmask &= ~SIG_NONMASKABLE;
- sigproc_printf ("old mask %p, new mask %p", oldmask, newmask);
- myself->setsigmask (newmask); // Set a new mask
- mask_sync->release ();
- if (oldmask & ~newmask)
- sig_dispatch_pending ();
- else
- sigproc_printf ("not calling sig_dispatch_pending");
- return;
-}
-
-_threadinfo *
-_threadinfo::find_tls (int sig)
-{
- EnterCriticalSection (&protect_linked_list);
- for (_threadinfo *t = _last_thread; t ; t = t->prev)
- if (sigismember (&t->sigwait_mask, sig))
- return t;
- LeaveCriticalSection (&protect_linked_list);
- return NULL;
-}
-
-int __stdcall
-sig_handle (int sig, sigset_t mask, int pid, _threadinfo *tls)
-{
- if (sig == SIGCONT)
- {
- DWORD stopped = myself->process_state & PID_STOPPED;
- myself->stopsig = 0;
- myself->process_state &= ~PID_STOPPED;
- /* Clear pending stop signals */
- sig_clear (SIGSTOP);
- sig_clear (SIGTSTP);
- sig_clear (SIGTTIN);
- sig_clear (SIGTTOU);
- if (stopped)
- SetEvent (sigCONT);
- }
-
- int rc = 1;
- bool insigwait_mask = tls ? sigismember (&tls->sigwait_mask, sig) : false;
- if (sig != SIGKILL && sig != SIGSTOP
- && (sigismember (&mask, sig)
- || (tls
- && (insigwait_mask || sigismember (&tls->sigmask, sig)))
- || main_vfork->pid
- || ISSTATE (myself, PID_STOPPED)))
- {
- sigproc_printf ("signal %d blocked", sig);
- if (insigwait_mask || (tls = _threadinfo::find_tls (sig)) != NULL)
- goto thread_specific;
- rc = -1;
- goto done;
- }
-
- /* Clear pending SIGCONT on stop signals */
- if (sig == SIGSTOP || sig == SIGTSTP || sig == SIGTTIN || sig == SIGTTOU)
- sig_clear (SIGCONT);
-
- sigproc_printf ("signal %d processing", sig);
- struct sigaction thissig = global_sigs[sig];
- void *handler;
- handler = (void *) thissig.sa_handler;
-
- myself->rusage_self.ru_nsignals++;
-
- if (sig == SIGKILL)
- goto exit_sig;
-
- if (sig == SIGSTOP)
- goto stop;
-
-#if 0
- char sigmsg[24];
- __small_sprintf (sigmsg, "cygwin: signal %d\n", sig);
- OutputDebugString (sigmsg);
-#endif
-
- if (handler == (void *) SIG_DFL)
- {
- if (insigwait_mask)
- goto thread_specific;
- if (sig == SIGCHLD || sig == SIGIO || sig == SIGCONT || sig == SIGWINCH
- || sig == SIGURG)
- {
- sigproc_printf ("default signal %d ignored", sig);
- goto done;
- }
-
- if (sig == SIGTSTP || sig == SIGTTIN || sig == SIGTTOU)
- goto stop;
-
- goto exit_sig;
- }
-
- if (handler == (void *) SIG_IGN)
- {
- sigproc_printf ("signal %d ignored", sig);
- goto done;
- }
-
- if (handler == (void *) SIG_ERR)
- goto exit_sig;
-
- goto dosig;
-
-stop:
- /* Eat multiple attempts to STOP */
- if (ISSTATE (myself, PID_STOPPED))
- goto done;
- handler = (void *) sig_handle_tty_stop;
- thissig = global_sigs[SIGSTOP];
-
-dosig:
- /* Dispatch to the appropriate function. */
- sigproc_printf ("signal %d, about to call %p", sig, handler);
- rc = setup_handler (sig, handler, thissig, tls ?: _main_tls);
-
-done:
- sigproc_printf ("returning %d", rc);
- return rc;
-
-thread_specific:
- tls->sig = sig;
- sigproc_printf ("releasing sigwait for thread");
- SetEvent (tls->event);
- goto done;
-
-exit_sig:
- if (sig == SIGQUIT || sig == SIGABRT)
- {
- CONTEXT c;
- c.ContextFlags = CONTEXT_FULL;
- GetThreadContext (hMainThread, &c);
- if (!try_to_debug ())
- stackdump (c.Ebp, 1, 1);
- sig |= 0x80;
- }
- sigproc_printf ("signal %d, about to call do_exit", sig);
- signal_exit (sig);
- /* Never returns */
-}
-
-CRITICAL_SECTION NO_COPY exit_lock;
-
-/* Cover function to `do_exit' to handle exiting even in presence of more
- exceptions. We used to call exit, but a SIGSEGV shouldn't cause atexit
- routines to run. */
-static void
-signal_exit (int rc)
-{
- EnterCriticalSection (&exit_lock);
- rc = EXIT_SIGNAL | (rc << 8);
- if (exit_already++)
- myself->exit (rc);
-
- /* We'd like to stop the main thread from executing but when we do that it
- causes random, inexplicable hangs. So, instead, we set up the priority
- of this thread really high so that it should do its thing and then exit. */
- (void) SetThreadPriority (hMainThread, THREAD_PRIORITY_IDLE);
- (void) SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_TIME_CRITICAL);
-
- /* Unlock any main thread mutos since we're executing with prejudice. */
- muto *m;
- for (m = muto_start.next; m != NULL; m = m->next)
- if (m->unstable () || m->owner () == cygthread::main_thread_id)
- m->reset ();
-
- user_data->resourcelocks->Delete ();
- user_data->resourcelocks->Init ();
-
- if (hExeced)
- {
- sigproc_printf ("terminating captive process");
- TerminateProcess (hExeced, rc);
- }
-
- sigproc_printf ("about to call do_exit (%x)", rc);
- (void) SetEvent (signal_arrived);
- do_exit (rc);
-}
-
-HANDLE NO_COPY title_mutex = NULL;
-
-void
-events_init (void)
-{
- char *name;
- char mutex_name[CYG_MAX_PATH];
- /* title_mutex protects modification of console title. It's necessary
- while finding console window handle */
-
- if (!(title_mutex = CreateMutex (&sec_all_nih, FALSE,
- name = shared_name (mutex_name,
- "title_mutex", 0))))
- api_fatal ("can't create title mutex '%s', %E", name);
-
- ProtectHandle (title_mutex);
- new_muto (mask_sync);
- windows_system_directory[0] = '\0';
- (void) GetSystemDirectory (windows_system_directory, sizeof (windows_system_directory) - 2);
- char *end = strchr (windows_system_directory, '\0');
- if (end == windows_system_directory)
- api_fatal ("can't find windows system directory");
- if (end[-1] != '\\')
- {
- *end++ = '\\';
- *end = '\0';
- }
- windows_system_directory_length = end - windows_system_directory;
- debug_printf ("windows_system_directory '%s', windows_system_directory_length %d",
- windows_system_directory, windows_system_directory_length);
- InitializeCriticalSection (&exit_lock);
-}
-
-void
-events_terminate (void)
-{
- exit_already = 1;
-}
-
-extern "C" {
-int __stdcall
-call_signal_handler_now ()
-{
- int sa_flags = 0;
- while (_my_tls.sig && _my_tls.stackptr > _my_tls.stack)
- {
- sa_flags = _my_tls.sa_flags;
- int sig = _my_tls.sig;
- void (*sigfunc) (int) = _my_tls.func;
- (void) _my_tls.pop ();
-#ifdef DEBUGGING
- if (_my_tls.stackptr > (_my_tls.stack + 1))
- try_to_debug ();
-#endif
- reset_signal_arrived ();
- sigset_t oldmask = _my_tls.oldmask;
- int this_errno = _my_tls.saved_errno;
- set_process_mask (_my_tls.newmask);
- _my_tls.sig = 0;
- sigfunc (sig);
- set_process_mask (oldmask);
- if (this_errno >= 0)
- set_errno (this_errno);
- }
-
- return sa_flags & SA_RESTART;
-}
-
-#define pid_offset (unsigned)(((_pinfo *)NULL)->pid)
-void __stdcall
-reset_signal_arrived ()
-{
- (void) ResetEvent (signal_arrived);
- sigproc_printf ("reset signal_arrived");
-}
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-06 03:39:23 +0300