From 162434a68226eb9a81fe92979fb59c8081aefcc0 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 15 Apr 2003 22:46:40 +0000 Subject: Update. 2003-04-15 Ulrich Drepper * elf/elf.h: Define AT_SYSINFO_EH_FRAME. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Handle AT_SYSINFO_EH_FRAME. (_dl_show_auxv):Display AT_SYSINFO_EH_FRAME value. * sysdeps/generic/ldsodefs.h [NEED_DL_SYSINFO] (struct rtld_global): Add _dl_sysinfo_eh_frame field. * elf/dl-support.c [NEED_DL_SYSINFO]: Define _dl_sysinfo_eh_frame. * sysdeps/generic/libc-start.c [NEED_DL_SYSINFO] Define eh_obj variable. [NEED_DL_SYSINFO] (LIBC_START_MAIN): Call __register_frame_info_bases if _dl_sysinfo_eh_frame is non-NULL. * Makeconfig (gnulib): Add -lgcc_eh. * config.h.in: Define HAVE_FORCED_UNWIND. --- sysdeps/generic/libc-start.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'sysdeps/generic/libc-start.c') diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c index b98f0a2..318d070 100644 --- a/sysdeps/generic/libc-start.c +++ b/sysdeps/generic/libc-start.c @@ -28,6 +28,11 @@ extern void __libc_init_first (int argc, char **argv, char **envp); extern int __libc_multiple_libcs; extern void *__libc_stack_end; +#ifdef NEED_DL_SYSINFO +# include "unwind-dw2-fde.h" +static struct object eh_obj; +#endif + #include #ifndef SHARED # include @@ -150,6 +155,13 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL), __libc_check_standard_fds (); #endif +#ifdef NEED_DL_SYSINFO + /* Register the kernel's unwind table. */ + if (GL(dl_sysinfo_eh_frame) != 0) + INTUSE(__register_frame_info_bases) ((void *) GL(dl_sysinfo_eh_frame), + &eh_obj, 0, 0); +#endif + /* Register the destructor of the dynamic linker if there is any. */ if (__builtin_expect (rtld_fini != NULL, 1)) __cxa_atexit ((void (*) (void *)) rtld_fini, NULL, NULL); -- cgit v1.1