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Diffstat (limited to 'contrib/gcc/config/arm/libunwind-arm.S')
| -rw-r--r-- | contrib/gcc/config/arm/libunwind-arm.S | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/contrib/gcc/config/arm/libunwind-arm.S b/contrib/gcc/config/arm/libunwind-arm.S deleted file mode 100644 index da553a4bfe78..000000000000 --- a/contrib/gcc/config/arm/libunwind-arm.S +++ /dev/null @@ -1,154 +0,0 @@ -/* Support functions for the unwinder. - Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. - Contributed by Paul Brook - - This file 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 into combinations with other programs, - and to distribute those combinations 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 a combine - executable.) - - This file 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 this program; see the file COPYING. If not, write to - the Free Software Foundation, 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. */ - -#include <machine/acle-compat.h> - -/* Allow the use of VFP instructions */ -#if __ARM_ARCH >= 7 -.fpu vfp -#endif - -#ifndef __symbian__ - -#include "lib1funcs.asm" - -.macro UNPREFIX name - .global SYM (\name) - EQUIV SYM (\name), SYM (__\name) -.endm - -/* r0 points to a 16-word block. Upload these values to the actual core - state. */ -ARM_FUNC_START restore_core_regs - /* We must use sp as the base register when restoring sp. Push the - last 3 registers onto the top of the current stack to achieve - this. */ - add r1, r0, #52 - ldmia r1, {r3, r4, r5} /* {sp, lr, pc}. */ -#ifdef __INTERWORKING__ - /* Restore pc into ip. */ - mov r2, r5 - stmfd sp!, {r2, r3, r4} -#else - stmfd sp!, {r3, r4, r5} -#endif - /* Don't bother restoring ip. */ - ldmia r0, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp} - /* Pop the three registers we pushed earlier. */ -#ifdef __INTERWORKING__ - ldmfd sp, {ip, sp, lr} - bx ip -#else - ldmfd sp, {sp, lr, pc} -#endif - FUNC_END restore_core_regs - UNPREFIX restore_core_regs - -/* Load VFP registers d0-d15 from the address in r0. */ -ARM_FUNC_START gnu_Unwind_Restore_VFP - /* Use the generic coprocessor form so that gas doesn't complain - on soft-float targets. */ -#if __ARM_ARCH >= 7 - fldmiax r0, {d0-d15} -#else - ldc p11,cr0,[r0],{0x21} /* fldmiax r0, {d0-d15} */ -#endif - RET - -/* Store VFR regsters d0-d15 to the address in r0. */ -ARM_FUNC_START gnu_Unwind_Save_VFP - /* Use the generic coprocessor form so that gas doesn't complain - on soft-float targets. */ -#if __ARM_ARCH >= 7 - fstmiax r0, {d0-d15} -#else - stc p11,cr0,[r0],{0x21} /* fstmiax r0, {d0-d15} */ -#endif - RET - -/* Wrappers to save core registers, then call the real routine. */ - -.macro UNWIND_WRAPPER name nargs - ARM_FUNC_START \name - /* Create a phase2_vrs structure. */ - /* Split reg push in two to ensure the correct value for sp. */ - stmfd sp!, {sp, lr, pc} - stmfd sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp, ip} - - /* Demand-save flags, plus an extra word for alignment. */ - mov r3, #0 - stmfd sp!, {r2, r3} - - /* Point r1 at the block. Pass r[0..nargs) unchanged. */ - add r\nargs, sp, #4 -#if defined(__thumb__) - /* Switch back to thumb mode to avoid interworking hassle. */ - adr ip, .L1_\name - orr ip, ip, #1 - bx ip - .thumb -.L1_\name: - bl SYM (__gnu\name) __PLT__ - ldr r3, [sp, #64] - add sp, #72 - bx r3 -#else - bl SYM (__gnu\name) __PLT__ - ldr lr, [sp, #64] - add sp, sp, #72 - RET -#endif - FUNC_END \name - UNPREFIX \name -.endm - -UNWIND_WRAPPER _Unwind_RaiseException 1 -UNWIND_WRAPPER _Unwind_Resume 1 -UNWIND_WRAPPER _Unwind_Resume_or_Rethrow 1 -UNWIND_WRAPPER _Unwind_ForcedUnwind 3 -UNWIND_WRAPPER _Unwind_Backtrace 2 - -/* - * Originally, we incorrectly export _Unwind_Backtrace symbol - * with GCC_3.3 version, but real GCC libgcc export it as GCC_4.3.0. - * To maintain backward compatibility, export it with both versions where - * GCC_4.3.0 is default one. - * - * The workaround is complicated by next two issues: - * - old GNU ld cannot handle two (or more) symbol versions - * targeting same function. - * - the .weakref crashes clang 4.0 - */ - .globl SYM(_Unwind_Backtrace33) - TYPE(_Unwind_Backtrace33) -SYM(_Unwind_Backtrace33): - b _Unwind_Backtrace - - .symver SYM(_Unwind_Backtrace33),_Unwind_Backtrace@GCC_3.3 - -#endif /* ndef __symbian__ */ |