diff options
Diffstat (limited to 'sysdeps/arm/__longjmp.S')
| -rw-r--r-- | sysdeps/arm/__longjmp.S | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/sysdeps/arm/__longjmp.S b/sysdeps/arm/__longjmp.S deleted file mode 100644 index 5202c728bc..0000000000 --- a/sysdeps/arm/__longjmp.S +++ /dev/null @@ -1,121 +0,0 @@ -/* longjmp for ARM. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <stap-probe.h> -#include <bits/setjmp.h> -#include <rtld-global-offsets.h> -#include <arm-features.h> - -/* __longjmp(jmpbuf, val) */ - -ENTRY (__longjmp) - mov ip, r0 - -#ifdef CHECK_SP - ldr r4, [ip] /* jmpbuf's sp */ - cfi_undefined (r4) -#ifdef PTR_DEMANGLE - PTR_DEMANGLE (r4, r4, a3, a4) -#endif - CHECK_SP (r4) -#endif - -#ifdef PTR_DEMANGLE - ldr a4, [ip], #4 - PTR_DEMANGLE (a4, a4, a3, r4) - cfi_undefined (r4) - ldr r4, [ip], #4 - PTR_DEMANGLE2 (r4, r4, a3) -#else - ldr a4, [ip], #4 - ldr r4, [ip], #4 - cfi_undefined (r4) -#endif - /* longjmp probe expects longjmp first argument (4@r0), second - argument (-4@r1), and target address (4@r4), respectively. */ - LIBC_PROBE (longjmp, 3, 4@r0, -4@r1, 4@r4) - mov sp, a4 - mov lr, r4 - ldmia ip!, JMP_BUF_REGLIST - cfi_restore (v1) - cfi_restore (v2) - cfi_restore (v3) - cfi_restore (v4) - cfi_restore (v5) - cfi_restore (v6) - cfi_restore (sl) - cfi_restore (fp) - cfi_restore (sp) - cfi_restore (lr) - -#if !defined ARM_ASSUME_NO_IWMMXT || defined __SOFTFP__ -# define NEED_HWCAP 1 -#endif - -#ifdef NEED_HWCAP -# if IS_IN (rtld) - LDST_PCREL (ldr, a4, a3, \ - C_SYMBOL_NAME(_rtld_local_ro) \ - + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) -# else -# ifdef SHARED - LDR_GLOBAL (a4, a3, C_SYMBOL_NAME(_rtld_global_ro), \ - RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) -# else - LDR_GLOBAL (a4, a3, C_SYMBOL_NAME(_dl_hwcap), 0) -# endif -# endif -#endif - -#ifdef __SOFTFP__ - tst a4, #HWCAP_ARM_VFP - beq .Lno_vfp -#endif - - /* Restore the VFP registers. */ - /* Following instruction is vldmia ip!, {d8-d15}. */ - ldc p11, cr8, [r12], #64 -.Lno_vfp: - -#ifndef ARM_ASSUME_NO_IWMMXT - tst a4, #HWCAP_ARM_IWMMXT - beq .Lno_iwmmxt - - /* Restore the call-preserved iWMMXt registers. */ - /* Following instructions are wldrd wr10, [ip], #8 (etc.) */ - ldcl p1, cr10, [r12], #8 - ldcl p1, cr11, [r12], #8 - ldcl p1, cr12, [r12], #8 - ldcl p1, cr13, [r12], #8 - ldcl p1, cr14, [r12], #8 - ldcl p1, cr15, [r12], #8 -.Lno_iwmmxt: -#endif - - /* longjmp_target probe expects longjmp first argument (4@r0), second - argument (-4@r1), and target address (4@r14), respectively. */ - LIBC_PROBE (longjmp_target, 3, 4@r0, -4@r1, 4@r14) - - movs r0, r1 /* get the return value in place */ - it eq - moveq r0, #1 /* can't let setjmp() return zero! */ - - DO_RET(lr) - -END (__longjmp) |