From 58cd1d70dd8cd4b95773c0487a5d2aecad2b4dc1 Mon Sep 17 00:00:00 2001 From: Rainer Orth Date: Fri, 3 Jun 2011 18:30:39 +0000 Subject: linux.h (MD_UNWIND_SUPPORT): Remove. gcc: * config/alpha/linux.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/osf5.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/vms.h (MD_UNWIND_SUPPORT): Remove. * config/bfin/linux.h (MD_UNWIND_SUPPORT): Remove. * config/bfin/uclinux.h (MD_UNWIND_SUPPORT): Remove. * config/i386/linux.h (MD_UNWIND_SUPPORT): Remove. * config/i386/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/i386/sol2.h (MD_UNWIND_SUPPORT): Remove. * config/i386/mingw32.h (MD_UNWIND_SUPPORT): Remove. * config/ia64/linux.h (MD_UNWIND_SUPPORT): Remove. * config/ia64/vms.h (MD_UNWIND_SUPPORT): Remove. * config/m68k/linux.h (MD_UNWIND_SUPPORT): Remove. * config/mips/linux.h (MD_UNWIND_SUPPORT): Remove. * config/pa/pa-hpux.h (MD_UNWIND_SUPPORT): Remove. * config/pa/pa32-linux.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/linux.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/s390/linux.h (MD_UNWIND_SUPPORT): Remove. * config/s390/tpf.h (MD_UNWIND_SUPPORT): Remove. * config/sh/linux.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/linux.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/sol2.h (MD_UNWIND_SUPPORT): Remove. * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/linux-unwind.h: Move to ../libgcc/config/alpha. * config/alpha/osf5-unwind.h: Move to ../libgcc/config/alpha. * config/alpha/vms-unwind.h: Move to ../libgcc/config/alpha. * config/bfin/linux-unwind.h: Move to ../libgcc/config/bfin. * config/i386/linux-unwind.h: Move to ../libgcc/config/i386. * config/i386/sol2-unwind.h: Move to ../libgcc/config/i386. * config/i386/w32-unwind.h: Move to ../libgcc/config/i386. * config/ia64/linux-unwind.h: Move to ../libgcc/config/ia64. * config/ia64/vms-unwind.h: Move to ../libgcc/config/ia64. * config/m68k/linux-unwind.h: Move to ../libgcc/config/m68k. * config/mips/linux-unwind.h: Move to ../libgcc/config/mips. * config/pa/hpux-unwind.h: Move to ../libgcc/config/pa. * config/pa/linux-unwind.h: Move to ../libgcc/config/pa. * config/rs6000/darwin-unwind.h: Move to ../libgcc/config/rs6000. * config/rs6000/linux-unwind.h: Move to ../libgcc/config/rs6000. * config/s390/linux-unwind.h: Move to ../libgcc/config/s390. * config/s390/tpf-unwind.h: Move to ../libgcc/config/s390. * config/sh/linux-unwind.h: Move to ../libgcc/config/sh. * config/sparc/linux-unwind.h: Move to ../libgcc/config/sparc. * config/sparc/sol2-unwind.h: Move to ../libgcc/config/sparc. * config/xtensa/linux-unwind.h: Move to ../libgcc/config/xtensa. * config/darwin9.h (DARWIN_LIBSYSTEM_HAS_UNWIND): Remove. * system.h (MD_UNWIND_SUPPORT): Poison. * doc/tm.texi.in (Exception Handling, MD_UNWIND_SUPPORT): Remove. * doc/tm.texi: Regenerate. * unwind-dw2.c: Include md-unwind-support.h instead of MD_UNWIND_SUPPORT. * config/ia64/unwind-ia64.c: Likewise. * config/xtensa/unwind-dw2-xtensa.c: Likewise. libgcc: * config/alpha/linux-unwind.h: Move from ../gcc/config/alpha. * config/alpha/osf5-unwind.h: Move from ../gcc/config/alpha. * config/alpha/vms-unwind.h: Move from ../gcc/config/alpha. * config/bfin/linux-unwind.h: Move from ../gcc/config/bfin. * config/i386/linux-unwind.h: Move from ../gcc/config/i386. * config/i386/sol2-unwind.h: Move from ../gcc/config/i386. * config/i386/w32-unwind.h: Move from ../gcc/config/i386. Wrap in !__MINGW64__. * config/ia64/linux-unwind.h: Move from ../gcc/config/ia64. * config/ia64/vms-unwind.h: Move from ../gcc/config/ia64. * config/m68k/linux-unwind.h: Move from ../gcc/config/m68k. * config/mips/linux-unwind.h: Move from ../gcc/config/mips. * config/pa/hpux-unwind.h: Move from ../gcc/config/pa. * config/pa/linux-unwind.h: Move from ../gcc/config/pa. * config/rs6000/darwin-unwind.h: Move from ../gcc/config/rs6000. Wrap in !__LP64__. * config/rs6000/linux-unwind.h: Move from ../gcc/config/rs6000. * config/s390/linux-unwind.h: Move from ../gcc/config/s390. * config/s390/tpf-unwind.h: Move from ../gcc/config/s390. * config/sh/linux-unwind.h: Move from ../gcc/config/sh. * config/sparc/linux-unwind.h: Move from ../gcc/config/sparc. * config/sparc/sol2-unwind.h: Move from ../gcc/config/sparc. * config/xtensa/linux-unwind.h: Move from ../gcc/config/xtensa. * config/no-unwind.h: New file. * config.host (md_unwind_header): Document. Define. (alpha*-*-linux*, alpha*-dec-osf5.1*, alpha64-dec-*vms*, alpha*-dec-*vms*, bfin*-uclinux*, bfin*-linux-uclibc*, hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*, hppa[12]*-*-hpux11*): Set md_unwind_header. (i[34567]86-*-linux*): Handle i[34567]86-*-kopensolaris*-gnu. Set md_unwind_header. (x86_64-*-linux*, i[34567]86-*-solaris2*): Set md_unwind_header. (i[34567]86-*-cygwin*): Split from i[34567]86-*-mingw*. (i[34567]86-*-mingw*, ia64*-*-linux*, ia64-hp-*vms*, m68k-*-uclinux*, m68k-*-linux*, mips64*-*-linux*, mips*-*-linux*, powerpc-*-darwin*, powerpc-*-linux*, s390-*-linux*, s390x-*-linux*, s390x-ibm-tpf*, sh*-*-linux*, sparc-*-linux*, sparc*-*-solaris2*, sparc64-*-linux*, xtensa*-*-linux*): Set md_unwind_header. * configure.ac: Link md-unwind-support.h to $md_unwind_header. * configure: Regenerate. From-SVN: r174613 --- libgcc/config/alpha/linux-unwind.h | 78 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 libgcc/config/alpha/linux-unwind.h (limited to 'libgcc/config/alpha/linux-unwind.h') diff --git a/libgcc/config/alpha/linux-unwind.h b/libgcc/config/alpha/linux-unwind.h new file mode 100644 index 00000000000..e43aacfd00b --- /dev/null +++ b/libgcc/config/alpha/linux-unwind.h @@ -0,0 +1,78 @@ +/* DWARF2 EH unwinding support for Alpha Linux. + Copyright (C) 2004, 2005, 2009 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 3, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +/* Do code reading to identify a signal frame, and set the frame + state data appropriately. See unwind-dw2.c for the structs. */ + +#include +#include + +#define MD_FALLBACK_FRAME_STATE_FOR alpha_fallback_frame_state + +static _Unwind_Reason_Code +alpha_fallback_frame_state (struct _Unwind_Context *context, + _Unwind_FrameState *fs) +{ + unsigned int *pc = context->ra; + struct sigcontext *sc; + long new_cfa, i; + + if (pc[0] != 0x47fe0410 /* mov $30,$16 */ + || pc[2] != 0x00000083 /* callsys */) + return _URC_END_OF_STACK; + if (context->cfa == 0) + return _URC_END_OF_STACK; + if (pc[1] == 0x201f0067) /* lda $0,NR_sigreturn */ + sc = context->cfa; + else if (pc[1] == 0x201f015f) /* lda $0,NR_rt_sigreturn */ + { + struct rt_sigframe { + struct siginfo info; + struct ucontext uc; + } *rt_ = context->cfa; + sc = &rt_->uc.uc_mcontext; + } + else + return _URC_END_OF_STACK; + new_cfa = sc->sc_regs[30]; + fs->regs.cfa_how = CFA_REG_OFFSET; + fs->regs.cfa_reg = 30; + fs->regs.cfa_offset = new_cfa - (long) context->cfa; + for (i = 0; i < 30; ++i) + { + fs->regs.reg[i].how = REG_SAVED_OFFSET; + fs->regs.reg[i].loc.offset + = (long)&sc->sc_regs[i] - new_cfa; + } + for (i = 0; i < 31; ++i) + { + fs->regs.reg[i+32].how = REG_SAVED_OFFSET; + fs->regs.reg[i+32].loc.offset + = (long)&sc->sc_fpregs[i] - new_cfa; + } + fs->regs.reg[64].how = REG_SAVED_OFFSET; + fs->regs.reg[64].loc.offset = (long)&sc->sc_pc - new_cfa; + fs->retaddr_column = 64; + return _URC_NO_REASON; +} -- cgit v1.2.1