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Add a test to check for duplicate definitions in the static library

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This change follows two previous fixes addressing multiple definitions
of __memcpy_chk and __mempcpy_chk functions on i586, and __memmove_chk
and __memset_chk functions on i686.  The test is intended to prevent
such issues from occurring in the future.

Signed-off-by: Gabi Falk <gabifalk@gmx.com>
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
(cherry picked from commit ded2e0753e)
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Gabi Falk 2024-04-30 20:05:04 +00:00 committed by Sam James
parent ad92c483a4
commit ff110b2591
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1 changed files with 7 additions and 0 deletions
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7
Makefile
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@ -577,6 +577,13 @@ $(objpfx)lint-makefiles.out: scripts/lint-makefiles.sh
$(SHELL) $< "$(PYTHON)" `pwd` > $@ ; \
$(evaluate-test)
# Link libc.a as a whole to verify that it does not contain multiple
# definitions of any symbols.
tests-special += $(objpfx)link-static-libc.out
$(objpfx)link-static-libc.out:
$(LINK.o) $(whole-archive) -r $(objpfx)libc.a -o /dev/null > $@ 2>&1; \
$(evaluate-test)
# Print test summary for tests in $1 .sum file;
# $2 is optional test identifier.
# Fail if there are unexpected failures in the test results.