mirror of
https://git.yoctoproject.org/poky
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8a6b3d82f6
This brings in: * nftw, nftw64: add wrapper * ftw, nftw, ftw64, nftw64: add tests * Move ftw and ftw64 to calling ntfw and nftw64 * makewrappers: Introduce 'array' support * pseudo_util.c: Avoid warning when we intentionally discard const * pseudo_client.c: Fix warning * yocto-older-glibc-symbols.path: Add as a reference patch * pseudo/pseudo_client: Add wrapper functions to operate correctly with glibc 2.38 onwards * configure: Prune PIE flags * test/test-parallel-rename.sh: Add parallel rename test * test/test-parallel-symlinks.sh: Add parallel symlink test * ports/linux/guts: Add .gitignore to ignore generated files (From OE-Core rev: b3140c624504b19a2b2faec8df89f57a99cefce1) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit 994e508b2a0ede8b5cc4fe39444cf25dc9a53faf) Signed-off-by: Yoann Congal <yoann.congal@smile.fr> Signed-off-by: Paul Barker <paul@pbarker.dev> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
58 lines
2.1 KiB
Diff
58 lines
2.1 KiB
Diff
If we link against a newer glibc 2.34 and then try and our LD_PRELOAD is run against a
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binary on a host with an older libc, we see symbol errors since in glibc 2.34, pthread
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and dl are merged into libc itself.
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We need to use the older form of linking so use glibc binaries from an older release
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to force this. We only use minimal symbols from these anyway.
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pthread_atfork is problematic, particularly on arm so use the internal glibc routine
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it maps too. This was always present in the main libc from 2.3.2 onwards.
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Yes this is horrible. Better solutions welcome.
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There is more info in the bug: [YOCTO #14521]
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Upstream-Status: Inappropriate [this patch is native and nativesdk]
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Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Tweak library search order, make prebuilt lib ahead of recipe lib
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Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
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---
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Makefile.in | 2 +-
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pseudo_wrappers.c | 5 ++++-
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2 files changed, 5 insertions(+), 2 deletions(-)
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diff --git a/Makefile.in b/Makefile.in
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -120,7 +120,7 @@ $(PSEUDODB): pseudodb.o $(SHOBJS) $(DBOBJS) pseudo_ipc.o | $(BIN)
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libpseudo: $(LIBPSEUDO)
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$(LIBPSEUDO): $(WRAPOBJS) pseudo_client.o pseudo_client_scanf.o pseudo_ipc.o $(SHOBJS) | $(LIB)
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- $(CC) $(CFLAGS) $(CFLAGS_PSEUDO) -shared -o $(LIBPSEUDO) \
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+ $(CC) $(CFLAGS) -Lprebuilt/$(shell uname -m)-linux/lib/ $(CFLAGS_PSEUDO) -shared -o $(LIBPSEUDO) \
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pseudo_client.o pseudo_client_scanf.o pseudo_ipc.o \
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$(WRAPOBJS) $(SHOBJS) $(LDFLAGS) $(CLIENT_LDFLAGS)
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diff --git a/pseudo_wrappers.c b/pseudo_wrappers.c
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--- a/pseudo_wrappers.c
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+++ b/pseudo_wrappers.c
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@@ -100,10 +100,13 @@ static void libpseudo_atfork_child(void)
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pseudo_mutex_holder = 0;
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}
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+extern void *__dso_handle;
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+extern int __register_atfork (void (*) (void), void (*) (void), void (*) (void), void *);
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+
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static void
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_libpseudo_init(void) {
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if (!_libpseudo_initted)
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- pthread_atfork(NULL, NULL, libpseudo_atfork_child);
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+ __register_atfork (NULL, NULL, libpseudo_atfork_child, &__dso_handle == NULL ? NULL : __dso_handle);
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pseudo_getlock();
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pseudo_antimagic();
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--
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2.27.0
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