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35f1e82763
* configure.in: Add --enable-stackguard-randomization option.
(ENABLE_STACKGUARD_RANDOMIZE): New define.
* config.h.in (ENABLE_STACKGUARD_RANDOMIZE): Add.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Include stdint.h.
(_dl_setup_stack_chk_guard): New inline function.
* sysdeps/generic/dl-osinfo.h: Include stdint.h.
(_dl_setup_stack_chk_guard): New inline function.
* elf/rtld.c (__stack_chk_guard): New variable.
(dl_main): Remove all traces of TLS_INIT_TP_EXPENSIVE.
Set __stack_chk_guard to _dl_setup_stack_chk_guard (),
use THREAD_SET_STACK_GUARD if defined.
* elf/Versions (ld): Export __stack_chk_guard@@GLIBC_2.4.
* sysdeps/generic/libc-start.c (__stack_chk_guard): New variable.
(__libc_start_main): Set __stack_chk_guard to
_dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Remove all
traces of TLS_INIT_TP_EXPENSIVE.
* debug/Versions (libc): Export __stack_chk_fail@@GLIBC_2.4.
* debug/Makefile (routines): Add stack_chk_fail.
(static-only-routines): Add stack_chk_fail_local.
* debug/stack_chk_fail_local.c: New file.
* debug/stack_chk_fail.c: New file.
* elf/Makefile: Add rules to build and run tst-stackguard1{,-static}
tests.
* elf/tst-stackguard1.c: New file.
* elf/tst-stackguard1-static.c: New file.
* elf/stackguard-macros.h: New file.
65 lines
1.4 KiB
Plaintext
65 lines
1.4 KiB
Plaintext
libc {
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GLIBC_2.0 {
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%ifdef EXPORT_UNWIND_FIND_FDE
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__register_frame_info; __deregister_frame_info;
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%endif
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}
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GLIBC_2.1 {
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# functions used in other libraries
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_dl_mcount_wrapper; _dl_mcount_wrapper_check;
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}
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GLIBC_2.2.4 {
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dl_iterate_phdr;
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}
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%ifdef EXPORT_UNWIND_FIND_FDE
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GCC_3.0 {
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__register_frame_info_bases; __deregister_frame_info_bases;
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__register_frame_info_table_bases; _Unwind_Find_FDE;
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}
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%endif
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GLIBC_PRIVATE {
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# functions used in other libraries
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_dl_addr;
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_dl_sym; _dl_vsym;
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_dl_open_hook;
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__libc_dlopen_mode; __libc_dlsym; __libc_dlclose;
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}
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}
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ld {
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GLIBC_2.0 {
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# Function from libc.so which must be shared with libc.
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calloc; free; malloc; realloc; __libc_memalign;
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_r_debug;
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}
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GLIBC_2.1 {
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# functions used in other libraries
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_dl_mcount;
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# historically used by Garbage Collectors
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__libc_stack_end;
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}
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GLIBC_2.3 {
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# runtime interface to TLS
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__tls_get_addr;
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}
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GLIBC_2.4 {
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# stack canary
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__stack_chk_guard;
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}
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GLIBC_PRIVATE {
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# Those are in the dynamic linker, but used by libc.so.
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__libc_enable_secure;
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_dl_argv;
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_dl_out_of_memory;
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_dl_starting_up;
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_rtld_global; _rtld_global_ro;
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_dl_allocate_tls; _dl_deallocate_tls;
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_dl_get_tls_static_info; _dl_allocate_tls_init;
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_dl_tls_setup; _dl_rtld_di_serinfo;
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_dl_make_stack_executable;
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# Only here for gdb while a better method is developed.
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_dl_debug_state;
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}
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}
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