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
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* Copyright (C) 2011-2019 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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#define _SYSDEPS_SYSDEP_H 1
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#include <bits/hwcap.h>
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#ifdef __ASSEMBLER__
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#define SPARC_PIC_THUNK(reg) \
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.ifndef __sparc_get_pc_thunk.reg; \
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.section .text.__sparc_get_pc_thunk.reg,"axG",@progbits,__sparc_get_pc_thunk.reg,comdat; \
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.align 32; \
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.weak __sparc_get_pc_thunk.reg; \
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.hidden __sparc_get_pc_thunk.reg; \
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.type __sparc_get_pc_thunk.reg, #function; \
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__sparc_get_pc_thunk.reg: \
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jmp %o7 + 8; \
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add %o7, %reg, %##reg; \
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.previous; \
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.endif;
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/* The "-4" and "+4" offsets against _GLOBAL_OFFSET_TABLE_ are
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critical since they represent the offset from the thunk call to the
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instruction containing the _GLOBAL_OFFSET_TABLE_ reference.
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Therefore these instructions cannot be moved around without
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appropriate adjustments to those offsets.
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Furthermore, these expressions are special in another regard. When
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the assembler sees a reference to _GLOBAL_OFFSET_TABLE_ inside of
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a %hi() or %lo(), it emits a PC-relative relocation. This causes
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R_SPARC_HI22 to turn into R_SPARC_PC22, and R_SPARC_LO10 to turn into
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R_SPARC_PC10, respectively.
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Even when v9 we use a call sequence instead of using "rd %pc" because
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RDPC is extremely expensive and incurs a full pipeline flush. */
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#define SPARC_PIC_THUNK_CALL(reg) \
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sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %##reg; \
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call __sparc_get_pc_thunk.reg; \
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or %##reg, %lo(_GLOBAL_OFFSET_TABLE_+4), %##reg;
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#define SETUP_PIC_REG(reg) \
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SPARC_PIC_THUNK(reg) \
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SPARC_PIC_THUNK_CALL(reg)
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#define SETUP_PIC_REG_LEAF(reg, tmp) \
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SPARC_PIC_THUNK(reg) \
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mov %o7, %##tmp; \
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SPARC_PIC_THUNK_CALL(reg); \
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mov %##tmp, %o7;
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#undef ENTRY
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#define ENTRY(name) \
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.align 4; \
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.global C_SYMBOL_NAME(name); \
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.type name, @function; \
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C_LABEL(name) \
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cfi_startproc;
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#undef END
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#define END(name) \
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cfi_endproc; \
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.size name, . - name
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#undef LOC
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#define LOC(name) .L##name
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#endif /* __ASSEMBLER__ */
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