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Exclude routines from fortification

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Since the _FORTIFY_SOURCE feature uses some routines of Glibc, they need to
be excluded from the fortification.

On top of that:
 - some tests explicitly verify that some level of fortification works
   appropriately, we therefore shouldn't modify the level set for them.
 - some objects need to be build with optimization disabled, which
   prevents _FORTIFY_SOURCE to be used for them.

Assembler files that implement architecture specific versions of the
fortified routines were not excluded from _FORTIFY_SOURCE as there is no
C header included that would impact their behavior.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Frédéric Bérat
2023-03-17 10:17:28 +01:00
parent 64d9580cdf
commit 20c894d21e
17 changed files with 248 additions and 26 deletions
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4
sysdeps/pthread/Makefile
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@ -304,6 +304,10 @@ tests-nolibpthread += \
CFLAGS-tst-cleanup2.c += -fno-builtin
CFLAGS-tst-cleanupx2.c += -fno-builtin
# Disable fortification due to sprintf(NULL,...)
CFLAGS-tst-cleanup2.c += $(no-fortify-source)
CFLAGS-tst-cleanupx2.c += $(no-fortify-source)
tests += \
tst-cancelx2 \
tst-cancelx3 \