diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/Makefile | 5 | ||||
| -rw-r--r-- | elf/Versions | 9 | ||||
| -rw-r--r-- | elf/soinit.c | 24 |
3 files changed, 38 insertions, 0 deletions
diff --git a/elf/Makefile b/elf/Makefile index 91d7e3a508..b39034c7bf 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -66,6 +66,11 @@ distribute := $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \ include ../Makeconfig +ifeq ($(unwind-find-fde),yes) +routines += unwind-dw2-fde +shared-only-routines = unwind-dw2-fde +endif + before-compile = $(objpfx)trusted-dirs.h generated := trusted-dirs.h trusted-dirs.st for-renamed/renamed.so generated-dirs := for-renamed diff --git a/elf/Versions b/elf/Versions index 2506d100a6..a0e691c0ac 100644 --- a/elf/Versions +++ b/elf/Versions @@ -2,6 +2,9 @@ libc { GLIBC_2.0 { # functions used in other libraries _dl_open; _dl_close; _dl_addr; +%ifdef EXPORT_UNWIND_FIND_FDE + __register_frame_info; __deregister_frame_info; +%endif } GLIBC_2.1 { # functions used in other libraries @@ -17,6 +20,12 @@ libc { GLIBC_2.2.4 { dl_iterate_phdr; } +%ifdef EXPORT_UNWIND_FIND_FDE + GLIBC_2.2.5 { + __register_frame_info_bases; __deregister_frame_info_bases; + __register_frame_info_table_bases; _Unwind_Find_FDE; + } +%endif } ld { diff --git a/elf/soinit.c b/elf/soinit.c index ff65af4a36..32ed4454b5 100644 --- a/elf/soinit.c +++ b/elf/soinit.c @@ -4,6 +4,7 @@ calling those lists of functions. */ #include <libc-internal.h> +#include <stdlib.h> #ifdef HAVE_DWARF2_UNWIND_INFO_STATIC # include <gccframe.h> @@ -29,7 +30,10 @@ static char __EH_FRAME_BEGIN__[] = { }; # ifdef HAVE_DWARF2_UNWIND_INFO_STATIC extern void __register_frame_info (const void *, struct object *); +extern void __register_frame_info_bases (const void *, struct object *, + void *, void *); extern void __deregister_frame_info (const void *); +extern void __deregister_frame_info_bases (const void *); # else extern void __register_frame (const void *); extern void __deregister_frame (const void *); @@ -47,7 +51,23 @@ __libc_global_ctors (void) # ifdef HAVE_DWARF2_UNWIND_INFO_STATIC { static struct object ob; +# if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA + void *tbase, *dbase; + +# ifdef CRT_GET_RFIB_TEXT + CRT_GET_RFIB_TEXT (tbase); +# else + tbase = NULL; +# endif +# ifdef CRT_GET_RFIB_DATA + CRT_GET_RFIB_DATA (dbase); +# else + dbase = NULL; +# endif + __register_frame_info_bases (__EH_FRAME_BEGIN__, &ob, tbase, dbase); +# else __register_frame_info (__EH_FRAME_BEGIN__, &ob); +# endif } # else __register_frame (__EH_FRAME_BEGIN__); @@ -66,7 +86,11 @@ _fini (void) run_hooks (__DTOR_LIST__); #ifdef HAVE_DWARF2_UNWIND_INFO # ifdef HAVE_DWARF2_UNWIND_INFO_STATIC +# if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA + __deregister_frame_info_bases (__EH_FRAME_BEGIN__); +# else __deregister_frame_info (__EH_FRAME_BEGIN__); +# endif # else __deregister_frame (__EH_FRAME_BEGIN__); # endif |