mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
82eef55f8f
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.
83 lines
2.0 KiB
Plaintext
83 lines
2.0 KiB
Plaintext
libc {
|
|
GLIBC_2.0 {
|
|
%ifdef EXPORT_UNWIND_FIND_FDE
|
|
__deregister_frame_info; __register_frame_info;
|
|
%endif
|
|
}
|
|
GLIBC_2.1 {
|
|
# functions used in other libraries
|
|
_dl_mcount_wrapper; _dl_mcount_wrapper_check;
|
|
}
|
|
GLIBC_2.2.4 {
|
|
dl_iterate_phdr;
|
|
}
|
|
%ifdef EXPORT_UNWIND_FIND_FDE
|
|
# Needed for SHLIB_COMPAT calls using this version.
|
|
GLIBC_2.2.5 {
|
|
}
|
|
GCC_3.0 {
|
|
__deregister_frame_info_bases; __register_frame_info_bases;
|
|
__register_frame_info_table_bases; _Unwind_Find_FDE;
|
|
}
|
|
%endif
|
|
GLIBC_PRIVATE {
|
|
# functions used in other libraries
|
|
_dl_addr;
|
|
_dl_open_hook; _dl_open_hook2;
|
|
_dl_sym; _dl_vsym;
|
|
__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;
|
|
_dl_signal_error; _dl_catch_error;
|
|
}
|
|
}
|
|
|
|
ld {
|
|
GLIBC_2.0 {
|
|
# Functions which are interposed from libc.so.
|
|
calloc; free; malloc; realloc;
|
|
|
|
_r_debug;
|
|
}
|
|
GLIBC_2.1 {
|
|
# functions used in other libraries
|
|
_dl_mcount;
|
|
# historically used by Garbage Collectors
|
|
__libc_stack_end;
|
|
}
|
|
GLIBC_2.3 {
|
|
# runtime interface to TLS
|
|
__tls_get_addr;
|
|
}
|
|
GLIBC_2.4 {
|
|
# stack canary
|
|
__stack_chk_guard;
|
|
}
|
|
GLIBC_PRIVATE {
|
|
# Those are in the dynamic linker, but used by libc.so.
|
|
__libc_enable_secure;
|
|
_dl_allocate_tls; _dl_allocate_tls_init;
|
|
_dl_argv; _dl_find_dso_for_object; _dl_get_tls_static_info;
|
|
_dl_deallocate_tls; _dl_make_stack_executable;
|
|
_dl_rtld_di_serinfo; _dl_starting_up;
|
|
_rtld_global; _rtld_global_ro;
|
|
|
|
# Only here for gdb while a better method is developed.
|
|
_dl_debug_state;
|
|
|
|
# Pointer protection.
|
|
__pointer_chk_guard;
|
|
|
|
# Internal error handling support.
|
|
_dl_exception_create; _dl_exception_create_format; _dl_exception_free;
|
|
|
|
# Internal error handling support. Interposed by libc.so.
|
|
_dl_signal_exception; _dl_catch_exception;
|
|
_dl_signal_error; _dl_catch_error;
|
|
|
|
# Set value of a tunable.
|
|
__tunable_get_val;
|
|
}
|
|
}
|