581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
69 lines
1.9 KiB
ArmAsm
69 lines
1.9 KiB
ArmAsm
/* Copyright (C) 2009-2022 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 <sysdep.h>
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#include <rtld-global-offsets.h>
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.section .rodata.str1.8,"aMS",@progbits,1
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.align 3
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.LC0:
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.string "longjmp causes uninitialized stack frame"
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.section .toc,"aw"
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.LC1:
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.tc .LC0[TC],.LC0
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.text
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#define __longjmp ____longjmp_chk
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#define CHECK_SP(reg) \
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cmpld reg, r1; \
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bge+ .Lok; \
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mflr r0; \
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std r0,FRAME_LR_SAVE(r1); \
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mr r31,r3; \
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mr r30,r4; \
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stdu r1,-FRAME_MIN_SIZE-32(r1); \
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cfi_remember_state; \
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cfi_adjust_cfa_offset (FRAME_MIN_SIZE+32); \
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cfi_offset (lr, FRAME_LR_SAVE); \
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li r3,0; \
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addi r4,r1,FRAME_MIN_SIZE; \
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li r0,__NR_sigaltstack; \
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sc; \
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/* Without working sigaltstack we cannot perform the test. */ \
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bso .Lok2; \
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lwz r0,FRAME_MIN_SIZE+8(r1); \
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andi. r4,r0,1; \
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beq .Lfail; \
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ld r0,FRAME_MIN_SIZE+16(r1); \
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ld r4,FRAME_MIN_SIZE(r1); \
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add r4,r4,r0; \
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sub r3,r3,reg; \
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cmpld r3,r0; \
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bge+ .Lok2; \
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.Lfail: \
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ld r3,.LC1@toc(2); \
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bl HIDDEN_JUMPTARGET (__fortify_fail); \
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nop; \
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.Lok2: \
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mr r3,r31; \
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mr r4,r30; \
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cfi_restore_state; \
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.Lok:
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#include <__longjmp-common.S>
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