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Diffstat (limited to 'contrib/gcc/config/ia64/linux-unwind.h')
-rw-r--r--contrib/gcc/config/ia64/linux-unwind.h193
1 files changed, 0 insertions, 193 deletions
diff --git a/contrib/gcc/config/ia64/linux-unwind.h b/contrib/gcc/config/ia64/linux-unwind.h
deleted file mode 100644
index 8b2878e923a8..000000000000
--- a/contrib/gcc/config/ia64/linux-unwind.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/* DWARF2 EH unwinding support for IA64 Linux.
- Copyright (C) 2004, 2005 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 2, or (at your
- option) any later version.
-
- In addition to the permissions in the GNU General Public License,
- the Free Software Foundation gives you unlimited permission to link
- the compiled version of this file with other programs, and to
- distribute those programs without any restriction coming from the
- use of this file. (The General Public License restrictions do
- apply in other respects; for example, they cover modification of
- the file, and distribution when not linked into another program.)
-
- 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.
-
- You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to the
- Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
-
-/* Do code reading to identify a signal frame, and set the frame
- state data appropriately. See unwind-dw2.c for the structs. */
-
-/* This works only for glibc-2.3 and later, because sigcontext is different
- in glibc-2.2.4. */
-
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
-#include <signal.h>
-#include <sys/ucontext.h>
-
-#define IA64_GATE_AREA_START 0xa000000000000100LL
-#define IA64_GATE_AREA_END 0xa000000000030000LL
-
-#define MD_FALLBACK_FRAME_STATE_FOR ia64_fallback_frame_state
-
-static _Unwind_Reason_Code
-ia64_fallback_frame_state (struct _Unwind_Context *context,
- _Unwind_FrameState *fs)
-{
- if (context->rp >= IA64_GATE_AREA_START
- && context->rp < IA64_GATE_AREA_END)
- {
- struct sigframe {
- char scratch[16];
- unsigned long sig_number;
- struct siginfo *info;
- struct sigcontext *sc;
- } *frame_ = (struct sigframe *)context->psp;
- struct sigcontext *sc = frame_->sc;
-
- /* Restore scratch registers in case the unwinder needs to
- refer to a value stored in one of them. */
- {
- int i;
-
- for (i = 2; i < 4; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- for (i = 8; i < 12; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- for (i = 14; i < 32; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- }
-
- context->fpsr_loc = &(sc->sc_ar_fpsr);
- context->pfs_loc = &(sc->sc_ar_pfs);
- context->lc_loc = &(sc->sc_ar_lc);
- context->unat_loc = &(sc->sc_ar_unat);
- context->br_loc[0] = &(sc->sc_br[0]);
- context->br_loc[6] = &(sc->sc_br[6]);
- context->br_loc[7] = &(sc->sc_br[7]);
- context->pr = sc->sc_pr;
- context->psp = sc->sc_gr[12];
- context->gp = sc->sc_gr[1];
- /* Signal frame doesn't have an associated reg. stack frame
- other than what we adjust for below. */
- fs -> no_reg_stack_frame = 1;
-
- if (sc->sc_rbs_base)
- {
- /* Need to switch from alternate register backing store. */
- long ndirty, loadrs = sc->sc_loadrs >> 16;
- unsigned long alt_bspstore = context->bsp - loadrs;
- unsigned long bspstore;
- unsigned long *ar_bsp = (unsigned long *)(sc->sc_ar_bsp);
-
- ndirty = ia64_rse_num_regs ((unsigned long *) alt_bspstore,
- (unsigned long *) context->bsp);
- bspstore = (unsigned long)
- ia64_rse_skip_regs (ar_bsp, -ndirty);
- ia64_copy_rbs (context, bspstore, alt_bspstore, loadrs,
- sc->sc_ar_rnat);
- }
-
- /* Don't touch the branch registers o.t. b0, b6 and b7.
- The kernel doesn't pass the preserved branch registers
- in the sigcontext but leaves them intact, so there's no
- need to do anything with them here. */
- {
- unsigned long sof = sc->sc_cfm & 0x7f;
- context->bsp = (unsigned long)
- ia64_rse_skip_regs ((unsigned long *)(sc->sc_ar_bsp), -sof);
- }
-
- fs->curr.reg[UNW_REG_RP].where = UNW_WHERE_SPREL;
- fs->curr.reg[UNW_REG_RP].val
- = (unsigned long)&(sc->sc_ip) - context->psp;
- fs->curr.reg[UNW_REG_RP].when = -1;
-
- return _URC_NO_REASON;
- }
- return _URC_END_OF_STACK;
-}
-
-#define MD_HANDLE_UNWABI ia64_handle_unwabi
-
-static void
-ia64_handle_unwabi (struct _Unwind_Context *context, _Unwind_FrameState *fs)
-{
- if (fs->unwabi == ((3 << 8) | 's')
- || fs->unwabi == ((0 << 8) | 's'))
- {
- struct sigframe {
- char scratch[16];
- unsigned long sig_number;
- struct siginfo *info;
- struct sigcontext *sc;
- } *frame = (struct sigframe *)context->psp;
- struct sigcontext *sc = frame->sc;
-
- /* Restore scratch registers in case the unwinder needs to
- refer to a value stored in one of them. */
- {
- int i;
-
- for (i = 2; i < 4; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- for (i = 8; i < 12; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- for (i = 14; i < 32; i++)
- context->ireg[i - 2].loc = &sc->sc_gr[i];
- }
-
- context->pfs_loc = &(sc->sc_ar_pfs);
- context->lc_loc = &(sc->sc_ar_lc);
- context->unat_loc = &(sc->sc_ar_unat);
- context->br_loc[0] = &(sc->sc_br[0]);
- context->br_loc[6] = &(sc->sc_br[6]);
- context->br_loc[7] = &(sc->sc_br[7]);
- context->pr = sc->sc_pr;
- context->gp = sc->sc_gr[1];
- /* Signal frame doesn't have an associated reg. stack frame
- other than what we adjust for below. */
- fs -> no_reg_stack_frame = 1;
-
- if (sc->sc_rbs_base)
- {
- /* Need to switch from alternate register backing store. */
- long ndirty, loadrs = sc->sc_loadrs >> 16;
- unsigned long alt_bspstore = context->bsp - loadrs;
- unsigned long bspstore;
- unsigned long *ar_bsp = (unsigned long *)(sc->sc_ar_bsp);
-
- ndirty = ia64_rse_num_regs ((unsigned long *) alt_bspstore,
- (unsigned long *) context->bsp);
- bspstore = (unsigned long) ia64_rse_skip_regs (ar_bsp, -ndirty);
- ia64_copy_rbs (context, bspstore, alt_bspstore, loadrs,
- sc->sc_ar_rnat);
- }
-
- /* Don't touch the branch registers o.t. b0, b6 and b7.
- The kernel doesn't pass the preserved branch registers
- in the sigcontext but leaves them intact, so there's no
- need to do anything with them here. */
- {
- unsigned long sof = sc->sc_cfm & 0x7f;
- context->bsp = (unsigned long)
- ia64_rse_skip_regs ((unsigned long *)(sc->sc_ar_bsp), -sof);
- }
-
- /* pfs_loc already set above. Without this pfs_loc would point
- incorrectly to sc_cfm instead of sc_ar_pfs. */
- fs->curr.reg[UNW_REG_PFS].where = UNW_WHERE_NONE;
- }
-}
-#endif /* glibc-2.3 or better */
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