mirror of
https://sourceware.org/git/glibc.git
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5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
89 lines
2.9 KiB
ArmAsm
89 lines
2.9 KiB
ArmAsm
/* Copyright (C) 2009-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sigaltstack-offsets.h>
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.section .rodata.str1.8,"aMS",@progbits,1
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.align 8
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.LC0:
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.string "longjmp causes uninitialized stack frame"
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.section .sdata,"aws",@progbits
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.align 8
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.type longjmp_msg,@object
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longjmp_msg:
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data8 .LC0
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.size longjmp_msg, .-longjmp_msg
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#define __longjmp ____longjmp_chk
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/* We use 32 bytes (rather than sizeof(stack_t)) so that we keep the stack
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properly aligned. But we still want a sanity check to make sure 32 is
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actually enough. */
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#define STACK_SPACE ((sizeSS + 31) & -32)
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/* Check the stack pointer held in the jumpbuf. Make sure it's in either the
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current stack (r12) or in the signal stack. */
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#define CHECK_RSP \
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ld8 loc0 = [in0]; \
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;; \
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/* First see if target stack is within current one. */ \
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cmp.ltu p0, p8 = loc0, r12; \
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(p8) br.cond.dptk.many .Lok; \
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\
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/* Check if it's an alternative signal stack. */ \
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mov out0 = r0; \
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add out1 = -STACK_SPACE, r12; \
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;; \
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mov r12 = out1; \
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DO_CALL_VIA_BREAK (SYS_ify (sigaltstack)); \
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;; \
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/* If the syscall failed, then assume it's OK. */ \
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cmp.eq p8, p0 = -1, r10; \
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(p8) br.cond.spnt .Lok; \
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/* Move stack_t into regs. */ \
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add r14 = oSS_FLAGS, r12; /* ss_flags */ \
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add r15 = oSS_SIZE, r12; /* ss_size */ \
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ld8 r16 = [r12]; /* ss_sp */ \
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;; \
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ld4 r17 = [r14]; /* ss_flags */ \
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ld8 r18 = [r15]; /* ss_size */ \
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;; \
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sub r19 = r16, r18; /* sp - size */ \
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/* See if we're currently on the altstack. */ \
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tbit.nz p0, p8 = r17, 0; /* SS_ONSTACK */ \
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(p8) br.cond.spnt .Lfail; \
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/* Verify target is within alternative stack. */ \
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cmp.gtu p7, p0 = loc0, r16; \
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(p7) br.cond.spnt .Lfail; \
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;; \
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cmp.ltu p0, p8 = loc0, r19; \
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(p8) br.cond.sptk.many .Lok; \
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;; \
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\
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/* Still here? Abort! */ \
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.Lfail: \
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add r12 = STACK_SPACE, r12; \
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addl loc0 = @ltoffx(longjmp_msg#), r1;; \
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ld8.mov loc0 = [loc0], longjmp_msg#;; \
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ld8 out0 = [loc0]; \
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br.call.sptk.many b0 = HIDDEN_JUMPTARGET(__fortify_fail)#;; \
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.Lok: \
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add r12 = STACK_SPACE, r12;
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#include "__longjmp.S"
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