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authorH.J. Lu <hjl.tools@gmail.com>2024-05-09 20:07:01 -0700
committerH.J. Lu <hjl.tools@gmail.com>2024-05-10 05:05:42 -0700
commit3956fd48d3039eb820f0d742a542a406dd7d153e (patch)
treeb59006820fce7a1f0910228deb253e4ff0c906a0
parentf4de99ea83794152296c5448c5cd00e3becb92bb (diff)
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Force DT_RPATH for --enable-hardcoded-path-in-tests
On Fedora 40/x86-64, linker enables --enable-new-dtags by default which generates DT_RUNPATH instead of DT_RPATH. Unlike DT_RPATH, DT_RUNPATH only applies to DT_NEEDED entries in the executable and doesn't applies to DT_NEEDED entries in shared libraries which are loaded via DT_NEEDED entries in the executable. Some glibc tests have libstdc++.so.6 in DT_NEEDED, which has libm.so.6 in DT_NEEDED. When DT_RUNPATH is generated, /lib64/libm.so.6 is loaded for such tests. If the newly built glibc is older than glibc 2.36, these tests fail with assert/tst-assert-c++: /export/build/gnu/tools-build/glibc-gitlab-release/build-x86_64-linux/libc.so.6: version `GLIBC_2.36' not found (required by /lib64/libm.so.6) assert/tst-assert-c++: /export/build/gnu/tools-build/glibc-gitlab-release/build-x86_64-linux/libc.so.6: version `GLIBC_ABI_DT_RELR' not found (required by /lib64/libm.so.6) Pass -Wl,--disable-new-dtags to linker when building glibc tests with --enable-hardcoded-path-in-tests. This fixes BZ #31719. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> (cherry picked from commit 2dcaf70643710e22f92a351e36e3cff8b48c60dc)
-rw-r--r--Makeconfig9
1 files changed, 6 insertions, 3 deletions
diff --git a/Makeconfig b/Makeconfig
index 2fda4af..81d9fb3 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -585,10 +585,13 @@ link-libc-rpath-link = -Wl,-rpath-link=$(rpath-link)
# before the expansion of LDLIBS-* variables).
# Tests use -Wl,-rpath instead of -Wl,-rpath-link for
-# build-hardcoded-path-in-tests.
+# build-hardcoded-path-in-tests. Add -Wl,--disable-new-dtags to force
+# DT_RPATH instead of DT_RUNPATH which only applies to DT_NEEDED entries
+# in the executable and doesn't applies to DT_NEEDED entries in shared
+# libraries which are loaded via DT_NEEDED entries in the executable.
ifeq (yes,$(build-hardcoded-path-in-tests))
-link-libc-tests-rpath-link = $(link-libc-rpath)
-link-test-modules-rpath-link = $(link-libc-rpath)
+link-libc-tests-rpath-link = $(link-libc-rpath) -Wl,--disable-new-dtags
+link-test-modules-rpath-link = $(link-libc-rpath) -Wl,--disable-new-dtags
else
link-libc-tests-rpath-link = $(link-libc-rpath-link)
link-test-modules-rpath-link =