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Frédéric Bérat 64d9580cdf Allow glibc to be built with _FORTIFY_SOURCE 
Add --enable-fortify-source option.

It is now possible to enable fortification through a configure option.
The level may be given as parameter, if none is provided, the configure
script will determine what is the highest level possible that can be set
considering GCC built-ins availability and set it.
If level is explicitly set to 3, configure checks if the compiler
supports the built-in function necessary for it or raise an error if it
isn't.

If the configure option isn't explicitly enabled, it _FORTIFY_SOURCE is
forcibly undefined (and therefore disabled).

The result of the configure checks are new variables, ${fortify_source}
and ${no_fortify_source} that can be used to appropriately populate
CFLAGS.

A dedicated patch will follow to make use of this variable in Makefiles
when necessary.

Updated NEWS and INSTALL.

Adding dedicated x86_64 variant that enables the configuration.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-07-05 16:59:34 +02:00
..
abi-versions.awk Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
abilist.awk Add GLIBC_ABI_DT_RELR for DT_RELR support 2022-04-26 10:16:11 -07:00
backport-support.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
build-many-glibcs.py Allow glibc to be built with _FORTIFY_SOURCE 2023-07-05 16:59:34 +02:00
check-c++-types.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-execstack.awk check-execstack: Permit sysdeps to xfail some libs 2018-07-20 03:28:14 +02:00
check-initfini.awk Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-installed-headers.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-local-headers.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-localplt.awk Extend local PLT reference check 2015-07-29 11:58:06 -07:00
check-obsolete-constructs.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-textrel.awk Do check-textrel test using readelf rather than a build-time C program. 2012-05-01 13:27:11 -07:00
check-wrapper-headers.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-wx-segment.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
config-uname.sh Rejigger header generation for default uname implementation. 2010-08-24 11:56:52 -07:00
config.guess Update scripts/config.* files from upstream GNU config version 2022-07-19 09:32:19 -03:00
config.sub Update scripts/config.* files from upstream GNU config version 2022-07-19 09:32:19 -03:00
cpp Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
cross-test-ssh.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
documented.sh grep: egrep -> grep -E, fgrep -> grep -F 2022-06-05 12:09:02 -07:00
dso-ordering-test.py Fix all the remaining misspellings -- BZ 25337 2023-06-02 01:39:48 +00:00
evaluate-test.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
firstversions.awk Fix bug in firstversions.awk version range handling. 2012-01-28 12:02:44 -05:00
gen-as-const.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
gen-libc-abis Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
gen-libc-modules.awk Auto-generate libc-modules.h 2014-11-19 12:16:00 +05:30
gen-posix-conf-vars.awk Remove uses of sprintf in gen-posix-conf-vars.awk 2015-01-02 11:16:35 +05:30
gen-rrtypes.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
gen-sorted.awk Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
gen-tunables.awk scripts: Use bool in tunables initializer 2022-10-28 11:14:54 +01:00
glibc_shared_code.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
glibcelf.py Fix all the remaining misspellings -- BZ 25337 2023-06-02 01:39:48 +00:00
glibcextract.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
glibcpp.py Fix all the remaining misspellings -- BZ 25337 2023-06-02 01:39:48 +00:00
glibcsymbols.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
haveversions.awk Don't build libnsl for new ABIs 2018-09-24 10:23:10 +02:00
install-sh Update miscellaneous files from upstream sources. 2018-12-06 17:21:47 +00:00
lib-names.awk Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
lint-makefiles.sh Add lint-makefiles Makefile linting test. 2023-06-02 21:43:05 -04:00
list-fixed-bugs.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
list-sources.sh Update scripts/list-sources.sh for ports repository merge. 2014-06-26 21:30:07 +00:00
localplt.awk scripts/localplt.awk: Handle DT_JMPREL with empty PLT (for C-SKY) 2022-10-27 11:36:44 +02:00
merge-test-results.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
mkinstalldirs Update miscellaneous files from upstream sources. 2018-12-06 17:21:47 +00:00
move-if-change Sync move-if-change from Gnulib, updating copyright 2022-01-01 11:42:26 -08:00
move-symbol-to-libc.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
pylint Implement benchmarking script in python 2014-03-21 17:32:50 +05:30
pylintrc Fix all the remaining misspellings -- BZ 25337 2023-06-02 01:39:48 +00:00
rellns-sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
sort-makefile-lines.py Fix a few more typos I missed in previous round -- BZ 25337 2023-06-02 23:46:32 +00:00
soversions.awk Remove bitrotten --enable-oldest-abi (bug 6652). 2014-09-16 17:45:03 +00:00
sysd-rules.awk sysd-rules: Cut down the number of rtld-% pattern rules 2016-09-20 10:41:05 +02:00
test_printers_common.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
test_printers_exceptions.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
test-installation.pl Update copyright dates not handled by scripts/update-copyrights 2023-01-06 21:45:36 +00:00
tst-elf-edit.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
tst-ld-trace.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
update-abilist.sh Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
update-copyrights Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
vcstocl_quirks.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
versionlist.awk Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
versions.awk Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00