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Diffstat (limited to 'contrib/gcc/config/sparc/linux-unwind.h')
| -rw-r--r-- | contrib/gcc/config/sparc/linux-unwind.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/contrib/gcc/config/sparc/linux-unwind.h b/contrib/gcc/config/sparc/linux-unwind.h deleted file mode 100644 index 958cb2d66aed..000000000000 --- a/contrib/gcc/config/sparc/linux-unwind.h +++ /dev/null @@ -1,158 +0,0 @@ -/* DWARF2 EH unwinding support for SPARC Linux. - Copyright 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. */ - -/* Handle multilib correctly. */ -#if defined(__arch64__) - -/* 64-bit SPARC version */ -#define MD_FALLBACK_FRAME_STATE_FOR sparc64_fallback_frame_state - -static _Unwind_Reason_Code -sparc64_fallback_frame_state (struct _Unwind_Context *context, - _Unwind_FrameState *fs) -{ - unsigned int *pc = context->ra; - long new_cfa, i; - long regs_off, fpu_save_off; - long this_cfa, fpu_save; - - if (pc[0] != 0x82102065 /* mov NR_rt_sigreturn, %g1 */ - || pc[1] != 0x91d0206d) /* ta 0x6d */ - return _URC_END_OF_STACK; - regs_off = 192 + 128; - fpu_save_off = regs_off + (16 * 8) + (3 * 8) + (2 * 4); - this_cfa = (long) context->cfa; - new_cfa = *(long *)((context->cfa) + (regs_off + (14 * 8))); - new_cfa += 2047; /* Stack bias */ - fpu_save = *(long *)((this_cfa) + (fpu_save_off)); - fs->cfa_how = CFA_REG_OFFSET; - fs->cfa_reg = 14; - fs->cfa_offset = new_cfa - (long) context->cfa; - for (i = 1; i < 16; ++i) - { - fs->regs.reg[i].how = REG_SAVED_OFFSET; - fs->regs.reg[i].loc.offset = - this_cfa + (regs_off + (i * 8)) - new_cfa; - } - for (i = 0; i < 16; ++i) - { - fs->regs.reg[i + 16].how = REG_SAVED_OFFSET; - fs->regs.reg[i + 16].loc.offset = - this_cfa + (i * 8) - new_cfa; - } - if (fpu_save) - { - for (i = 0; i < 64; ++i) - { - if (i > 32 && (i & 0x1)) - continue; - fs->regs.reg[i + 32].how = REG_SAVED_OFFSET; - fs->regs.reg[i + 32].loc.offset = - (fpu_save + (i * 4)) - new_cfa; - } - } - /* Stick return address into %g0, same trick Alpha uses. */ - fs->regs.reg[0].how = REG_SAVED_OFFSET; - fs->regs.reg[0].loc.offset = - this_cfa + (regs_off + (16 * 8) + 8) - new_cfa; - fs->retaddr_column = 0; - return _URC_NO_REASON; -} - -#else - -/* 32-bit SPARC version */ -#define MD_FALLBACK_FRAME_STATE_FOR sparc_fallback_frame_state - -static _Unwind_Reason_Code -sparc_fallback_frame_state (struct _Unwind_Context *context, - _Unwind_FrameState *fs) -{ - unsigned int *pc = context->ra; - int new_cfa, i, oldstyle; - int regs_off, fpu_save_off; - int fpu_save, this_cfa; - - if (pc[1] != 0x91d02010) /* ta 0x10 */ - return _URC_END_OF_STACK; - if (pc[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ - oldstyle = 1; - else if (pc[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ - oldstyle = 0; - else - return _URC_END_OF_STACK; - if (oldstyle) - { - regs_off = 96; - fpu_save_off = regs_off + (4 * 4) + (16 * 4); - } - else - { - regs_off = 96 + 128; - fpu_save_off = regs_off + (4 * 4) + (16 * 4) + (2 * 4); - } - this_cfa = (int) context->cfa; - new_cfa = *(int *)((context->cfa) + (regs_off+(4*4)+(14 * 4))); - fpu_save = *(int *)((this_cfa) + (fpu_save_off)); - fs->cfa_how = CFA_REG_OFFSET; - fs->cfa_reg = 14; - fs->cfa_offset = new_cfa - (int) context->cfa; - for (i = 1; i < 16; ++i) - { - if (i == 14) - continue; - fs->regs.reg[i].how = REG_SAVED_OFFSET; - fs->regs.reg[i].loc.offset = - this_cfa + (regs_off+(4 * 4)+(i * 4)) - new_cfa; - } - for (i = 0; i < 16; ++i) - { - fs->regs.reg[i + 16].how = REG_SAVED_OFFSET; - fs->regs.reg[i + 16].loc.offset = - this_cfa + (i * 4) - new_cfa; - } - if (fpu_save) - { - for (i = 0; i < 32; ++i) - { - fs->regs.reg[i + 32].how = REG_SAVED_OFFSET; - fs->regs.reg[i + 32].loc.offset = - (fpu_save + (i * 4)) - new_cfa; - } - } - /* Stick return address into %g0, same trick Alpha uses. */ - fs->regs.reg[0].how = REG_SAVED_OFFSET; - fs->regs.reg[0].loc.offset = this_cfa+(regs_off+4)-new_cfa; - fs->retaddr_column = 0; - return _URC_NO_REASON; -} - -#endif |