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authorFlorian Weimer <fweimer@redhat.com>2018-01-04 18:46:17 +0100
committerFlorian Weimer <fweimer@redhat.com>2018-01-04 18:46:24 +0100
commit82eef55f8fad3e00c53050de5d6ebea08df488b3 (patch)
treee0e1ed86b2296703182789d7f5ea607bf066ffe4 /elf/Versions
parent7abf02f3ee7627d617def77d0d6e7bea2da8d98c (diff)
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elf: Support dlvsym within libc.so
This commit adds a new _dl_open_hook entry for dlvsym and implements the function using the existing dl_lookup_symbol_x function supplied by the dynamic loader. A new hook variable, _dl_open_hook2, is introduced, which should make this change suitable for backporting: For old statically linked binaries, __libc_dlvsym will always return NULL.
Diffstat (limited to 'elf/Versions')
-rw-r--r--elf/Versions4
1 files changed, 2 insertions, 2 deletions
diff --git a/elf/Versions b/elf/Versions
index 79ffaf73d2..3b09901f6c 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -23,9 +23,9 @@ libc {
GLIBC_PRIVATE {
# functions used in other libraries
_dl_addr;
- _dl_open_hook;
+ _dl_open_hook; _dl_open_hook2;
_dl_sym; _dl_vsym;
- __libc_dlclose; __libc_dlopen_mode; __libc_dlsym;
+ __libc_dlclose; __libc_dlopen_mode; __libc_dlsym; __libc_dlvsym;
# Internal error handling support. Interposes the functions in ld.so.
_dl_signal_exception; _dl_catch_exception;