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21 Commits

Author SHA1 Message Date
Jakub Jelinek 754e45a867 re PR other/26208 (Serious problem with unwinding through signal frames) 
PR other/26208
	* unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
	(extract_cie_info): Handle S flag in augmentation string.
	(execute_cfa_program): If context->signal_frame, execute also
	fs->pc == context->ra instructions.
	(uw_frame_state_for): If context->signal_frame, don't subtract one
	from context->ra to find FDE.
	(uw_update_context_1): Set context->signal_frame to
	fs->signal_frame.
	(_Unwind_GetIPInfo): New function.
	* unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
	* unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* unwind-sjlj.c (_Unwind_GetIPInfo): New function.
	* unwind-generic.h (_Unwind_GetIPInfo): New prototype.
	* unwind-compat.c (_Unwind_GetIPInfo): New function.
	* libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
	* config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
	* config/i386/linux-unwind.h (x86_fallback_frame_state,
	x86_64_fallback_frame_state): Set fs->signal_frame.
	* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
	(MD_FROB_UPDATE_CONTEXT): Define unconditionally.
	(frob_update_context): Likewise.  Workaround missing S flag in
	Linux 2.6.12 - 2.6.16 kernel vDSOs.
	* config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
	Remove the psw_addr + 1 hack.
libjava/
	* exception.cc (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* include/i386-signal.h (MAKE_THROW_FRAME): Change into empty macro.
	(HANDLE_DIVIDE_OVERFLOW): Don't adjust _res->eip if falling through
	to throw.
	* include/x86_64-signal.h (MAKE_THROW_FRAME): Change into empty
	macro.
	* include/powerpc-signal.h (MAKE_THROW_FRAME): Change into empty
	macro.
libstdc++-v3/
	* libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Use
	_Unwind_GetIPInfo instead of _Unwind_GetIP.

From-SVN: r111488
 2006-02-27 18:26:26 +01:00
Andrew Haley ddef717308 re PR libgcj/22084 (Divide_1 test case hangs) 
2005-09-08  Andrew Haley  <aph@redhat.com>

	PR java/22084
	* include/i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Bump IP by 1 if
	R/M field in instruction is 100.

From-SVN: r104094
 2005-09-09 13:05:20 +00:00
Per Bothner c5fe8107bc prims.cc (unblock_signal): Annotate signum with __unused__ to avoid warnings in the non-POSIX_VERSION case. 
* prims.cc (unblock_signal): Annotate signum with __unused__ to
	avoid warnings in the non-POSIX_VERSION case.
	Also, we only need this function if either HANDLE_SEGV or HANDLE_FPE,
	so place it inside an #if block.
	* include/default-signal.h (SIGNAL_HANDLER): Parameters are __unused__.
	* include/i386-signal.h (SIGNAL_HANDLER):  Likewise
	* include/mips-signal.h (SIGNAL_HANDLER):  Likewise
	* include/sparc-signal.h (SIGNAL_HANDLER):  Likewise

From-SVN: r88148
 2004-09-26 13:38:49 -07:00
Diego Novillo 9d4d854dc3 i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Add volatile qualifier to _regs. 
* include/i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Add volatile
	qualifier to _regs.

From-SVN: r77489
 2004-02-08 12:13:50 -05:00
Diego Novillo 6bdd607046 i386-signal.h (MAKE_THROW_FRAME): Add volatile qualifier to _regs. 
* include/i386-signal.h (MAKE_THROW_FRAME): Add volatile
	qualifier to _regs.

From-SVN: r77484
 2004-02-08 11:51:03 -05:00
Andrew Haley cf68fdb19b i386-signal.h (RESTORE): New. 
2003-07-08  Andrew Haley  <aph@redhat.com>

        * include/i386-signal.h (RESTORE): New.
        (INIT_SEGV): Set restorer.
        (INIT_FPE): Likewise.

From-SVN: r69957
 2003-07-30 14:50:02 +00:00
Andrew Haley bec3e66d1a prims.cc (catch_segv): Create exception in handler. 
2003-06-12  Andrew Haley  <aph@redhat.com>

        * prims.cc (catch_segv): Create exception in handler.
        (catch_fpe): Likewise.
        (_Jv_divI, _Jv_remI, _Jv_divJ, _Jv_remJ): Likewise.
        (_Jv_ThrowSignal): Remove.

        * include/x86_64-signal.h (INIT_SEGV): Delete reference to nullp.
        * include/default-signal.h (INIT_SEGV, INIT_FPE): Delete reference
        to nullp and arithexception.
        * include/dwarf2-signal.h (INIT_SEGV, INIT_FPE): Likewise.
        * include/i386-signal.h (INIT_SEGV, INIT_FPE): Likewise.
        * include/s390-signal.h (INIT_SEGV, INIT_FPE): Likewise.
        * include/sparc-signal.h (INIT_SEGV, INIT_FPE): Likewise.
        * include/win32-signal.h (INIT_SEGV, INIT_FPE): Likewise.

From-SVN: r67892
 2003-06-13 12:20:45 +00:00
Andrew Haley 71c6877d3e i386-signal.h (old_i386_kernel_sigaction): New. 
2002-03-18  Andrew Haley  <aph@cambridge.redhat.com>

        * include/i386-signal.h (old_i386_kernel_sigaction): New.
        INIT_SEGV: Use old_i386_kernel_sigaction.
        INIT_FP: Likewise.

From-SVN: r50980
 2002-03-18 17:11:43 +00:00
Alexandre Petit-Bianco ba75520fff i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Removed unused local `_ebp.' 
2001-07-13  Alexandre Petit-Bianco  <apbianco@redhat.com>

	* include/i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Removed unused
	local `_ebp.'

(http://gcc.gnu.org/ml/java-patches/2001-q3/msg00070.html )

From-SVN: r44093
 2001-07-17 16:59:07 -07:00
Andrew Haley b8ef6023aa i386-signal.h: Don't do anything with unsigned divide overflow except throw an exception. 
2001-07-06  Andrew Haley  <aph@cambridge.redhat.com>

        * include/i386-signal.h: Don't do anything with unsigned divide
        overflow except throw an exception.

From-SVN: r43813
 2001-07-06 16:33:10 +00:00
Andrew Haley c9bffcd53e i386-signal.h (MAKE_THROW_FRAME): Don't fix up frame pointer... 
2001-05-29  Andrew Haley  <aph@redhat.com>

        * include/i386-signal.h (MAKE_THROW_FRAME): Don't fix up frame
        pointer: the dwarf unwinder in libgcc will do everything that's
        needed.
        (HANDLE_DIVIDE_OVERFLOW): Tidy.  Don't mess with stack frames any
        more than we absolutely need to.
        * configure.host (EXCEPTIONSPEC): Remove libgcj_sjlj on Alpha.
        * configure.in (SIGNAL_HANDLER): Use include/dwarf2-signal.h on
        Alpha.
        (SIGNAL_HANDLER): Test "$enable_sjlj_exceptions", not
        "$libgcj_sjlj".
        * configure: Rebuilt.
        * include/dwarf2-signal.h (MAKE_THROW_FRAME): Adjust PC
        for Alpha.
        (SIGNAL_HANDLER): Use siginfo style handler.
        (INIT_SEGV): Likewise.
        (INIT_FPE): Likewise.
        * include/ppc-signal.h: Delete whole file.

From-SVN: r42691
 2001-05-29 17:50:50 +00:00
Andrew Haley 6472877ae0 i386-signal.h (INIT_SEGV): Use a direct system call to set the handler. 
2001-02-14  Andrew Haley  <aph@redhat.com>

        * include/i386-signal.h (INIT_SEGV): Use a direct system call to
        set the handler.

From-SVN: r39724
 2001-02-15 19:19:50 +00:00
Andrew Haley cab1f90abf 2001-01-26 Andrew Haley <aph@redhat.com> 
(INIT_FPE): Use a direct system call to set the handler.

From-SVN: r39354
 2001-01-30 21:00:22 +00:00
Tom Tromey 6c80c45e30 Jumbo patch: 
* Imported beans and serialization
* Updated IA-64 port
* Miscellaneous bug fixes

From-SVN: r34028
 2000-05-19 17:55:34 +00:00
Tom Tromey 2ba5f77454 All files: Updated copyright information. 
* All files: Updated copyright information.
	* COPYING: New file.
	* COPYING.LIB: Removed.
	* LIBGCJ_LICENSE: We now use GPL + special exception.

From-SVN: r32387
 2000-03-07 19:55:28 +00:00
Tom Tromey 7c734b1758 * All files: Updated copyright to reflect Cygnus purchase. 
From-SVN: r31504
 2000-01-19 18:39:27 +00:00
Andrew Haley 80be8f05f1 i386-signal.h (MAKE_THROW_FRAME): Advance EIP by two bytes to make it point after the instruction where the trap... 
1999-07-07  Andrew Haley  <aph@cygnus.com>
        * include/i386-signal.h (MAKE_THROW_FRAME): Advance EIP by two
	bytes to make it point after the instruction where the trap
	occurred.
	(HANDLE_DIVIDE_OVERFLOW): Ditto.

From-SVN: r27989
 1999-07-07 09:09:39 +00:00
Andrew Haley 0d072f2298 i386-signal.h: Replace sigaction () with __sigaction (). 
1999-07-01  Andrew Haley  <aph@cygnus.com>
	* include/i386-signal.h: Replace sigaction () with __sigaction ().
	This is a workaround for a bug in glibc's pthreads package which
	doesn't deliver any sigcontext information to a signal handler.

From-SVN: r27876
 1999-07-01 10:30:58 +00:00
Andrew Haley 554b61bb30 prims.cc (catch_fpe): Call to HANDLE_DIVIDE_OVERFLOW added. 
1999-05-20  Andrew Haley  <aph@cygnus.com>
        * libjava/prims.cc (catch_fpe): Call to HANDLE_DIVIDE_OVERFLOW
        added.
        * include/i386-signal.h (HANDLE_DIVIDE_OVERFLOW): New macro.
        (INIT_FPE): Exception string made more informative.
        * include/sparc-signal.h (INIT_FPE): Exception string made more
        informative.
        * testsuite/libjava.lang/Divide_1.java: New file.
        * testsuite/libjava.lang/Divide_1.out: New file.

From-SVN: r27056
 1999-05-20 08:26:55 +00:00
Andrew Haley 01f78a025e sparc-signal.h: new file. 
1999-04-20  Andrew Haley  <aph@cygnus.com>
        * include/sparc-signal.h: new file.
        * configure.in: include/sparc-signal.h added.
        * configure: regenerated.
        * prims.cc (JvRunMain): signal handling code rewritten to be more
        portable.
        (catch_segv): ditto.
        (catch_fpe): ditto.
        * include/i386-signal.h: reorganized.
        * include/default-signal.h: reorganized.

From-SVN: r26560
 1999-04-20 06:27:11 +00:00
Andrew Haley a4e44caa6d i386-signal.h, [...]: New files. 
1999-04-13  Andrew Haley  <aph@cygnus.com>
        * include/i386-signal.h, include/default-signal.h: New files.
        * prims.cc (catch_segv): Call MAKE_THROW_FRAME in exception
        handler.
        (catch_fpe): New function.
        * configure.in: Make link to appropriate include/java-signal.h.
        * configure: Rebuilt.
        * Makefile.am: include/java-signal.h added to dependency list.
        * Makefile.in: Rebuilt.

From-SVN: r26400
 1999-04-13 09:18:09 +00:00