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2004-06-28 Geoffrey Keating <geoffk@apple.com> Andreas Tobler <a.tobler@schweiz.ch> PR 15813 * dwarf2out.c (reg_save): Output DW_CFA_same_value when a register is saved in itself. (initial_return_save): If the return address is a register, it's already there, don't bother to mention it in the CFI. (struct queued_reg_save): Add field saved_reg. (struct reg_saved_in_data): New. (regs_saved_in_regs): New. (num_regs_saved_in_regs): New. (queue_reg_save): Add extra parameter to specify register saved in register. Remove duplicate entries from queue. Add comment for function. (flush_queued_reg_saves): Handle registers saved in registers. Update regs_saved_in_regs. Add comment for function. (clobbers_queued_reg_save): Add comment for function. Allow for regs_saved_in_regs. (reg_saved_in): New. (dwarf2out_frame_debug_expr): Handle saving registers in other registers. (dwarf2out_frame_debug): Reset regs_saved_in_regs. * unwind-dw2.c (execute_cfa_program): Correct handling of DW_CFA_same_value. Add FIXME comment about incorrect implementation of DW_CFA_restore_extended. * config/rs6000/rs6000.c (rs6000_emit_prologue): Let dwarf2out_frame_debug_expr see instructions that save registers in other registers or save those other registers in memory. * unwind-dw2.c (DWARF_FRAME_REGISTERS): Move to unwind-dw2.h. (_Unwind_FrameState): Likewise. * unwind-dw2.h: New. * Makefile.in (LIB2ADDEHDEP): Add unwind-dw2.h. * config/rs6000/darwin-fallback.c: New file. * config/rs6000/darwin.h (MD_FALLBACK_FRAME_STATE_FOR): Define. * config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Add darwin-fallback.o. Index: gcc/testsuite/ChangeLog 2004-06-26 Geoffrey Keating <geoffk@apple.com> Andreas Tobler <a.tobler@schweiz.ch> * gcc.dg/cleanup-10.c: Run on all Linux platforms and powerpc-darwin. Use SA_RESETHAND rather than SA_ONESHOT. Trap SIGBUS as well as SIGSEGV. * gcc.dg/cleanup-11.c: Likewise. * gcc.dg/cleanup-8.c: Likewise. * gcc.dg/cleanup-9.c: Likewise. * gcc.dg/cleanup-5.c: Run on all platforms. Index: libjava/ChangeLog 2004-06-26 Geoffrey Keating <geoffk@apple.com> Andreas Tobler <a.tobler@schweiz.ch> * configure.host (powerpc-*-darwin*): New case, define can_unwind_signal. * configure.in (*-*-darwin*): New case, point to darwin-signal.h. * configure: Regenerate. * include/darwin-signal.h: New. Co-Authored-By: Andreas Tobler <a.tobler@schweiz.ch> From-SVN: r83953
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* darwin-signal.h - Catch runtime signals and turn them into exceptions,
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on a Darwin system. */
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/* Copyright (C) 2004 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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/* This file is really more of a specification. The rest of the system
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should be arranged so that this Just Works. */
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#ifndef JAVA_SIGNAL_H
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# define JAVA_SIGNAL_H 1
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#include <sys/types.h>
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#include <stdio.h>
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#include <signal.h>
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typedef void (* SIG_PF)(int);
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# define HANDLE_SEGV 1
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# undef HANDLE_FPE
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# define SIGNAL_HANDLER(_name) \
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static void _name (int _dummy __attribute__ ((unused)))
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# define MAKE_THROW_FRAME(_exception)
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# define INIT_SEGV \
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do { \
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struct sigaction sa; \
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sa.sa_handler = catch_segv; \
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sigemptyset (&sa.sa_mask); \
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sa.sa_flags = SA_NODEFER; \
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sigaction (SIGBUS, &sa, NULL); \
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sigaction (SIGSEGV, &sa, NULL); \
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} while (0)
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# define INIT_FPE \
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do { \
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struct sigaction sa; \
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sa.sa_handler = catch_fpe; \
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sigemptyset (&sa.sa_mask); \
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sa.sa_flags = SA_NODEFER; \
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sigaction (SIGFPE, &sa, NULL); \
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} while (0)
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#endif /* JAVA_SIGNAL_H */
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