diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/____longjmp_chk.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/____longjmp_chk.S | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S b/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S deleted file mode 100644 index 386d7038a5..0000000000 --- a/sysdeps/unix/sysv/linux/sh/____longjmp_chk.S +++ /dev/null @@ -1,122 +0,0 @@ -/* Copyright (C) 2009-2017 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 <sigaltstack-offsets.h> - - .section .rodata.str1.1,"aMS",@progbits,1 - .type longjmp_msg,@object -longjmp_msg: - .string "longjmp causes uninitialized stack frame" - .size longjmp_msg, .-longjmp_msg - .text - -#define __longjmp ____longjmp_chk - -#ifdef PIC -# define CALL_FAIL \ - mov.l .Lfail, r1; \ - mov.l .Lstr, r4; \ - mov.l r12, @-r15; \ - cfi_remember_state; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r12, 0); \ - mova .Lgot, r0; \ - mov.l .Lgot, r12; \ - add r0, r12; \ - sts.l pr, @-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (pr, 0); \ - bsrf r1; \ - add r12, r4; \ -.Lfail0: \ - /* Unreachable. */ \ - .align 2; \ -.Lgot: \ - .long _GLOBAL_OFFSET_TABLE_; \ -.Lstr: \ - .long longjmp_msg@GOTOFF; \ -.Lfail: \ - .long __GI___fortify_fail@PLT-(.Lfail0-.); \ - cfi_restore_state; -#else -# define CALL_FAIL \ - mov.l .Lfail, r1; \ - mov.l .Lstr, r4; \ - sts.l pr, @-r15; \ - cfi_remember_state; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (pr, 0); \ - jsr @r1; \ - nop; \ - /* Unreachable. */ \ - .align 2; \ -.Lstr: \ - .long longjmp_msg; \ -.Lfail: \ - .long __fortify_fail; \ - cfi_restore_state; -#endif - -#define CHECK_SP(reg) \ - /* Jumping to a higher-address frame is always allowed. */ \ - cmp/hs r15, reg; \ - bt .Lok; \ - \ - mov.l r0, @-r15; /* The return value is already in here. */ \ - cfi_adjust_cfa_offset (4); \ - mov.l r1, @-r15; /* PTR_DEMANGLE helper. */ \ - cfi_adjust_cfa_offset (4); \ - mov.l r2, @-r15; /* The new SP value is already in here. */ \ - cfi_adjust_cfa_offset (4); \ - mov.l r4, @-r15; /* We'll still need this one. */ \ - cfi_adjust_cfa_offset (4); \ - add #-sizeSS, r15; \ - cfi_adjust_cfa_offset (sizeSS); \ - mov #0, r4; \ - mov r15, r5; \ - DO_CALL (sigaltstack, 2); \ - /* Without working sigaltstack we cannot perform the test. */ \ - tst r0, r0; \ - bf .Lok2; \ - mov.l @(oSS_FLAGS, r15), r0; \ - tst #SS_ONSTACK, r0; \ - bt .Lcall_fail; \ - mov.l @(oSS_SIZE, r15), r2; \ - mov.l @(oSS_SP, r15), r1; \ - add r2, r1; \ - sub r8, r1; \ - cmp/hi r1, r2; \ - bf .Lok2; \ -.Lcall_fail: \ - CALL_FAIL \ - \ -.Lok2: \ - add #sizeSS, r15; \ - cfi_adjust_cfa_offset (-sizeSS); \ - mov.l @r15+, r4; \ - cfi_adjust_cfa_offset (-4); \ - mov.l @r15+, r2; \ - cfi_adjust_cfa_offset (-4); \ - mov.l @r15+, r1; \ - cfi_adjust_cfa_offset (-4); \ - mov.l @r15+, r0; \ - cfi_adjust_cfa_offset (-4); \ -.Lok: - -#include <__longjmp.S> |