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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174613 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 164 insertions, 0 deletions

diff --git a/libgcc/config/bfin/linux-unwind.h b/libgcc/config/bfin/linux-unwind.h
new file mode 100644
index 00000000000..88c8285632d
--- /dev/null
+++ b/libgcc/config/bfin/linux-unwind.h
@@ -0,0 +1,164 @@
+/* DWARF2 EH unwinding support for Blackfin.
+   Copyright (C) 2007, 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
+<http://www.gnu.org/licenses/>.  */
+
+/* Do code reading to identify a signal frame, and set the frame
+   state data appropriately.  See unwind-dw2.c for the structs.
+   Don't use this at all if inhibit_libc is used.  */
+
+#ifndef inhibit_libc
+
+#include <signal.h>
+#include <sys/ucontext.h>
+
+#define MD_FALLBACK_FRAME_STATE_FOR bfin_fallback_frame_state
+
+static _Unwind_Reason_Code
+bfin_fallback_frame_state (struct _Unwind_Context *context,
+			   _Unwind_FrameState *fs)
+{
+  unsigned char *pc = context->ra;
+  struct sigcontext *sc;
+  long new_cfa;
+
+  /* P0=__NR_rt_sigreturn (X); EXCPT  0x0; */
+  if (*(unsigned short *)pc == 0xe128
+      && *(unsigned short *)(pc + 2) == 0x00ad
+      && *(unsigned short *)(pc + 4) == 0x00a0)
+    {
+      struct rt_sigframe {
+	int sig;
+	struct siginfo *pinfo;
+	void *puc;
+	char retcode[8];
+	struct siginfo info;
+	struct ucontext uc;
+      } *rt_ = context->cfa;
+
+      /* The void * cast is necessary to avoid an aliasing warning.
+         The aliasing warning is correct, but should not be a problem
+         because it does not alias anything.  */
+      sc = (struct sigcontext *)(void *)&rt_->uc.uc_mcontext.gregs;
+    }
+  else
+    return _URC_END_OF_STACK;
+
+  new_cfa = sc->sc_usp;
+  fs->regs.cfa_how = CFA_REG_OFFSET;
+  fs->regs.cfa_reg = 14;
+  fs->regs.cfa_offset = new_cfa - (long) context->cfa;
+
+  fs->regs.reg[0].how = REG_SAVED_OFFSET;
+  fs->regs.reg[0].loc.offset = (long)&sc->sc_r0 - new_cfa;
+  fs->regs.reg[1].how = REG_SAVED_OFFSET;
+  fs->regs.reg[1].loc.offset = (long)&sc->sc_r1 - new_cfa;
+  fs->regs.reg[2].how = REG_SAVED_OFFSET;
+  fs->regs.reg[2].loc.offset = (long)&sc->sc_r2 - new_cfa;
+  fs->regs.reg[3].how = REG_SAVED_OFFSET;
+  fs->regs.reg[3].loc.offset = (long)&sc->sc_r3 - new_cfa;
+  fs->regs.reg[4].how = REG_SAVED_OFFSET;
+  fs->regs.reg[4].loc.offset = (long)&sc->sc_r4 - new_cfa;
+  fs->regs.reg[5].how = REG_SAVED_OFFSET;
+  fs->regs.reg[5].loc.offset = (long)&sc->sc_r5 - new_cfa;
+  fs->regs.reg[6].how = REG_SAVED_OFFSET;
+  fs->regs.reg[6].loc.offset = (long)&sc->sc_r6 - new_cfa;
+  fs->regs.reg[7].how = REG_SAVED_OFFSET;
+  fs->regs.reg[7].loc.offset = (long)&sc->sc_r7 - new_cfa;
+  fs->regs.reg[8].how = REG_SAVED_OFFSET;
+  fs->regs.reg[8].loc.offset = (long)&sc->sc_p0 - new_cfa;
+  fs->regs.reg[9].how = REG_SAVED_OFFSET;
+  fs->regs.reg[9].loc.offset = (long)&sc->sc_p1 - new_cfa;
+  fs->regs.reg[10].how = REG_SAVED_OFFSET;
+  fs->regs.reg[10].loc.offset = (long)&sc->sc_p2 - new_cfa;
+  fs->regs.reg[11].how = REG_SAVED_OFFSET;
+  fs->regs.reg[11].loc.offset = (long)&sc->sc_p3 - new_cfa;
+  fs->regs.reg[12].how = REG_SAVED_OFFSET;
+  fs->regs.reg[12].loc.offset = (long)&sc->sc_p4 - new_cfa;
+  fs->regs.reg[13].how = REG_SAVED_OFFSET;
+  fs->regs.reg[13].loc.offset = (long)&sc->sc_p5 - new_cfa;
+
+  fs->regs.reg[15].how = REG_SAVED_OFFSET;
+  fs->regs.reg[15].loc.offset = (long)&sc->sc_fp - new_cfa;
+  fs->regs.reg[16].how = REG_SAVED_OFFSET;
+  fs->regs.reg[16].loc.offset = (long)&sc->sc_i0 - new_cfa;
+  fs->regs.reg[17].how = REG_SAVED_OFFSET;
+  fs->regs.reg[17].loc.offset = (long)&sc->sc_i1 - new_cfa;
+  fs->regs.reg[18].how = REG_SAVED_OFFSET;
+  fs->regs.reg[18].loc.offset = (long)&sc->sc_i2 - new_cfa;
+  fs->regs.reg[19].how = REG_SAVED_OFFSET;
+  fs->regs.reg[19].loc.offset = (long)&sc->sc_i3 - new_cfa;
+  fs->regs.reg[20].how = REG_SAVED_OFFSET;
+  fs->regs.reg[20].loc.offset = (long)&sc->sc_b0 - new_cfa;
+  fs->regs.reg[21].how = REG_SAVED_OFFSET;
+  fs->regs.reg[21].loc.offset = (long)&sc->sc_b1 - new_cfa;
+  fs->regs.reg[22].how = REG_SAVED_OFFSET;
+  fs->regs.reg[22].loc.offset = (long)&sc->sc_b2 - new_cfa;
+  fs->regs.reg[23].how = REG_SAVED_OFFSET;
+  fs->regs.reg[23].loc.offset = (long)&sc->sc_b3 - new_cfa;
+  fs->regs.reg[24].how = REG_SAVED_OFFSET;
+  fs->regs.reg[24].loc.offset = (long)&sc->sc_l0 - new_cfa;
+  fs->regs.reg[25].how = REG_SAVED_OFFSET;
+  fs->regs.reg[25].loc.offset = (long)&sc->sc_l1 - new_cfa;
+  fs->regs.reg[26].how = REG_SAVED_OFFSET;
+  fs->regs.reg[26].loc.offset = (long)&sc->sc_l2 - new_cfa;
+  fs->regs.reg[27].how = REG_SAVED_OFFSET;
+  fs->regs.reg[27].loc.offset = (long)&sc->sc_l3 - new_cfa;
+  fs->regs.reg[28].how = REG_SAVED_OFFSET;
+  fs->regs.reg[28].loc.offset = (long)&sc->sc_m0 - new_cfa;
+  fs->regs.reg[29].how = REG_SAVED_OFFSET;
+  fs->regs.reg[29].loc.offset = (long)&sc->sc_m1 - new_cfa;
+  fs->regs.reg[30].how = REG_SAVED_OFFSET;
+  fs->regs.reg[30].loc.offset = (long)&sc->sc_m2 - new_cfa;
+  fs->regs.reg[31].how = REG_SAVED_OFFSET;
+  fs->regs.reg[31].loc.offset = (long)&sc->sc_m3 - new_cfa;
+  /* FIXME: Handle A0, A1, CC.  */
+  fs->regs.reg[35].how = REG_SAVED_OFFSET;
+  fs->regs.reg[35].loc.offset = (long)&sc->sc_rets - new_cfa;
+  fs->regs.reg[36].how = REG_SAVED_OFFSET;
+  fs->regs.reg[36].loc.offset = (long)&sc->sc_pc - new_cfa;
+  fs->regs.reg[37].how = REG_SAVED_OFFSET;
+  fs->regs.reg[37].loc.offset = (long)&sc->sc_retx - new_cfa;
+
+  fs->regs.reg[40].how = REG_SAVED_OFFSET;
+  fs->regs.reg[40].loc.offset = (long)&sc->sc_astat - new_cfa;
+  fs->regs.reg[41].how = REG_SAVED_OFFSET;
+  fs->regs.reg[41].loc.offset = (long)&sc->sc_seqstat - new_cfa;
+
+  fs->regs.reg[44].how = REG_SAVED_OFFSET;
+  fs->regs.reg[44].loc.offset = (long)&sc->sc_lt0 - new_cfa;
+  fs->regs.reg[45].how = REG_SAVED_OFFSET;
+  fs->regs.reg[45].loc.offset = (long)&sc->sc_lt1 - new_cfa;
+  fs->regs.reg[46].how = REG_SAVED_OFFSET;
+  fs->regs.reg[46].loc.offset = (long)&sc->sc_lc0 - new_cfa;
+  fs->regs.reg[47].how = REG_SAVED_OFFSET;
+  fs->regs.reg[47].loc.offset = (long)&sc->sc_lc1 - new_cfa;
+  fs->regs.reg[48].how = REG_SAVED_OFFSET;
+  fs->regs.reg[48].loc.offset = (long)&sc->sc_lb0 - new_cfa;
+  fs->regs.reg[49].how = REG_SAVED_OFFSET;
+  fs->regs.reg[49].loc.offset = (long)&sc->sc_lb1 - new_cfa;
+  fs->retaddr_column = 35;
+
+  return _URC_NO_REASON;
+}
+
+#endif /* ifdef inhibit_libc */