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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-11-10 23:35:19 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-11-11 02:36:22 +0100 |
| commit | 3d3316b1dee885153d44210b2e95dba68d00613a (patch) | |
| tree | 997c7734e51a76d2c11d0bfb5227f463c75df2e2 /include/string.h | |
| parent | a40b18b2330026cedc07348481bf3219f668adca (diff) | |
| download | glibc-3d3316b1dee885153d44210b2e95dba68d00613a.tar.gz glibc-3d3316b1dee885153d44210b2e95dba68d00613a.tar.xz glibc-3d3316b1dee885153d44210b2e95dba68d00613a.zip | |
hurd: keep only required PLTs in ld.so
We need NO_RTLD_HIDDEN because of the need for PLT calls in ld.so. See Roland's comment in https://sourceware.org/bugzilla/show_bug.cgi?id=15605 "in the Hurd it's crucial that calls like __mmap be the libc ones instead of the rtld-local ones after the bootstrap phase, when the dynamic linker is being used for dlopen and the like." We used to just avoid all hidden use in the rtld ; this commit switches to keeping only those that should use PLT calls, i.e. essentially those defined in sysdeps/mach/hurd/dl-sysdep.c: __assert_fail __assert_perror_fail __*stat64 _exit This fixes a few startup issues, notably the call to __tunable_get_val that is made before PLTs are set up.
Diffstat (limited to 'include/string.h')
| -rw-r--r-- | include/string.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/string.h b/include/string.h index f4ce138622..7d344d77d4 100644 --- a/include/string.h +++ b/include/string.h @@ -150,7 +150,7 @@ libc_hidden_builtin_proto (strspn) libc_hidden_builtin_proto (strstr) libc_hidden_builtin_proto (ffs) -#if IS_IN (rtld) && !defined NO_RTLD_HIDDEN +#if IS_IN (rtld) extern __typeof (__stpcpy) __stpcpy attribute_hidden; extern __typeof (__strdup) __strdup attribute_hidden; extern __typeof (__strerror_r) __strerror_r attribute_hidden; |