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Assembler shouldn't accept invalid TLS instructions, TLS relocations can only be used with specific instructions as specified in TLS psABI and linker issues an error when TLS relocations are used with wrong instructions or format. Since it is inconvenient for gcc to rely on linker to report errors, adding TLS check in the assembler stage so that gcc can know TLS errors earlier. gas/ChangeLog: PR gas/32022 * config.in: Regenerate. * config/tc-i386.c *(enum x86_tls_error_type): New. *(struct _i386_insn): Added has_gotrel to indicate whether TLS relocations need to be checked. (x86_check_tls_relocation): Added a new function to check TLS relocation. (x86_report_tls_error): Created a new function to report TLS error. (i386_assemble): Handle x86_check_tls_relocation. (lex_got): Set i.has_gotrel. (OPTION_MTLS_CHECK): Added a new option to contrl TLS check. (struct option): Ditto. (md_parse_option): Ditto. (md_show_usage): Ditto. * configure.ac: Added a new option to check TLS relocation by default. * configure: Regenerated. * doc/c-i386.texi: Document -mtls-check=. * testsuite/gas/i386/i386.exp: Added new tests. * testsuite/gas/i386/ilp32/ilp32.exp: Ditto. * testsuite/gas/i386/ilp32/reloc64.d: Disable TLS check for it. * testsuite/gas/i386/ilp32/x32-tls.d: Ditto. * testsuite/gas/i386/inval-tls.l: Added more test cases. * testsuite/gas/i386/inval-tls.s: Ditto. * testsuite/gas/i386/reloc32.d: Disable TLS check for it. * testsuite/gas/i386/reloc64.d: Ditto. * testsuite/gas/i386/x86-64-inval-tls.l: Added more test cases. * testsuite/gas/i386/x86-64-inval-tls.s: Ditto. * testsuite/gas/i386/x86-64.exp: Added new tests. * testsuite/gas/i386/ilp32/x32-inval-tls.l: New test. * testsuite/gas/i386/ilp32/x32-inval-tls.s: Ditto. * testsuite/gas/i386/ilp32/x86-64-tls.d: Ditto. * testsuite/gas/i386/tls.d: Ditto. * testsuite/gas/i386/tls.s: Ditto. * testsuite/gas/i386/x86-64-tls.d: Ditto. * testsuite/gas/i386/x86-64-tls.s: Ditto. ld/ChangeLog: PR gas/32022 * testsuite/ld-i386/tlsgdesc1.d: Disable TLS check for it. * testsuite/ld-i386/tlsgdesc2.d: Ditto. * testsuite/ld-i386/tlsie2.d: Ditto. * testsuite/ld-i386/tlsie3.d: Ditto. * testsuite/ld-i386/tlsie4.d: Ditto. * testsuite/ld-i386/tlsie5.d: Ditto. * testsuite/ld-i386/tlsgdesc3.d: Ditto. * testsuite/ld-x86-64/tlsdesc3.d: Ditto. * testsuite/ld-x86-64/tlsdesc4.d: Ditto. * testsuite/ld-x86-64/tlsie2.d: Ditto. * testsuite/ld-x86-64/tlsie3.d: Ditto. * testsuite/ld-x86-64/tlsie5.d: Ditto. * testsuite/ld-x86-64/tlsdesc5.d: Ditto. |
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bfd | ||
binutils | ||
config | ||
contrib | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gdbserver | ||
gdbsupport | ||
gnulib | ||
gold | ||
gprof | ||
gprofng | ||
include | ||
ld | ||
libbacktrace | ||
libctf | ||
libdecnumber | ||
libiberty | ||
libsframe | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
zlib | ||
.cvsignore | ||
.editorconfig | ||
.gitattributes | ||
.gitignore | ||
.pre-commit-config.yaml | ||
ar-lib | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING3 | ||
COPYING3.LIB | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
lt~obsolete.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
multilib.am | ||
README | ||
README-maintainer-mode | ||
SECURITY.txt | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
test-driver | ||
ylwrap |
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.