aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S88
1 files changed, 0 insertions, 88 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S b/sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S
deleted file mode 100644
index 179d43d372..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/____longjmp_chk.S
+++ /dev/null
@@ -1,88 +0,0 @@
-/* Copyright (C) 2009-2024 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
- <https://www.gnu.org/licenses/>. */
-
-#include <sigaltstack-offsets.h>
-
- .section .rodata.str1.8,"aMS",@progbits,1
- .align 8
-.LC0:
- .string "longjmp causes uninitialized stack frame"
-
- .section .sdata,"aws",@progbits
- .align 8
- .type longjmp_msg,@object
-longjmp_msg:
- data8 .LC0
- .size longjmp_msg, .-longjmp_msg
-
-#define __longjmp ____longjmp_chk
-
-/* We use 32 bytes (rather than sizeof(stack_t)) so that we keep the stack
- properly aligned. But we still want a sanity check to make sure 32 is
- actually enough. */
-#define STACK_SPACE ((sizeSS + 31) & -32)
-
-/* Check the stack pointer held in the jumpbuf. Make sure it's in either the
- current stack (r12) or in the signal stack. */
-#define CHECK_RSP \
- ld8 loc0 = [in0]; \
- ;; \
- /* First see if target stack is within current one. */ \
- cmp.ltu p0, p8 = loc0, r12; \
-(p8) br.cond.dptk.many .Lok; \
- \
- /* Check if it's an alternative signal stack. */ \
- mov out0 = r0; \
- add out1 = -STACK_SPACE, r12; \
- ;; \
- mov r12 = out1; \
- DO_CALL_VIA_BREAK (SYS_ify (sigaltstack)); \
- ;; \
- /* If the syscall failed, then assume it's OK. */ \
- cmp.eq p8, p0 = -1, r10; \
-(p8) br.cond.spnt .Lok; \
- /* Move stack_t into regs. */ \
- add r14 = oSS_FLAGS, r12; /* ss_flags */ \
- add r15 = oSS_SIZE, r12; /* ss_size */ \
- ld8 r16 = [r12]; /* ss_sp */ \
- ;; \
- ld4 r17 = [r14]; /* ss_flags */ \
- ld8 r18 = [r15]; /* ss_size */ \
- ;; \
- sub r19 = r16, r18; /* sp - size */ \
- /* See if we're currently on the altstack. */ \
- tbit.nz p0, p8 = r17, 0; /* SS_ONSTACK */ \
-(p8) br.cond.spnt .Lfail; \
- /* Verify target is within alternative stack. */ \
- cmp.gtu p7, p0 = loc0, r16; \
-(p7) br.cond.spnt .Lfail; \
- ;; \
- cmp.ltu p0, p8 = loc0, r19; \
-(p8) br.cond.sptk.many .Lok; \
- ;; \
- \
- /* Still here? Abort! */ \
-.Lfail: \
- add r12 = STACK_SPACE, r12; \
- addl loc0 = @ltoffx(longjmp_msg#), r1;; \
- ld8.mov loc0 = [loc0], longjmp_msg#;; \
- ld8 out0 = [loc0]; \
- br.call.sptk.many b0 = HIDDEN_JUMPTARGET(__fortify_fail)#;; \
-.Lok: \
- add r12 = STACK_SPACE, r12;
-
-#include "__longjmp.S"