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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
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
check-obsolete-constructs.py Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
check-textrel.awk
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
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
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
gen-posix-conf-vars.awk
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
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
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
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
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