Update.
2003-04-15 Ulrich Drepper <drepper@redhat.com> * 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.
This commit is contained in:
Ulrich Drepper
parent
482eb33c43
commit
162434a682
18
ChangeLog
18
ChangeLog
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@ -1,3 +1,21 @@
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2003-04-15 Ulrich Drepper <drepper@redhat.com>
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* elf/elf.h: Define AT_SYSINFO_EH_FRAME.
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* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Handle
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AT_SYSINFO_EH_FRAME.
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(_dl_show_auxv):Display AT_SYSINFO_EH_FRAME value.
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* sysdeps/generic/ldsodefs.h [NEED_DL_SYSINFO] (struct rtld_global):
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Add _dl_sysinfo_eh_frame field.
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* elf/dl-support.c [NEED_DL_SYSINFO]: Define _dl_sysinfo_eh_frame.
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* sysdeps/generic/libc-start.c [NEED_DL_SYSINFO] Define eh_obj
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variable.
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[NEED_DL_SYSINFO] (LIBC_START_MAIN): Call __register_frame_info_bases
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if _dl_sysinfo_eh_frame is non-NULL.
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* Makeconfig (gnulib): Add -lgcc_eh.
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* config.h.in: Define HAVE_FORCED_UNWIND.
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2003-04-15 Steven Munroe <sjmunroe@us.ibm.com>
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* sysdeps/powerpc/powerpc64/strcmp.S: Convert to full 64-bit.
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@ -505,7 +505,7 @@ link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a
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link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a)
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ifndef gnulib
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gnulib := -lgcc
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gnulib := -lgcc -lgcc_eh
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endif
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ifeq ($(elf),yes)
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+preinit = $(addprefix $(csu-objpfx),crti.o)
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@ -189,6 +189,9 @@
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/* Mach/i386 specific: define if the `i386_set_gdt' RPC is available. */
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#undef HAVE_I386_SET_GDT
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/* Defined if forced unwind support is available. */
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#undef HAVE_FORCED_UNWIND
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/*
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*/
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@ -127,6 +127,8 @@ size_t _dl_phnum;
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#ifdef NEED_DL_SYSINFO
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/* Needed for improved syscall handling on at least x86/Linux. */
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uintptr_t _dl_sysinfo = DL_SYSINFO_DEFAULT;
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/* Address of the unwind info for the vsyscall page. */
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uintptr_t _dl_sysinfo_eh_frame;
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#endif
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/* During the program run we must not modify the global data of
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@ -949,6 +949,7 @@ typedef struct
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/* Pointer to the global system page used for system calls and other
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nice things. */
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#define AT_SYSINFO 32
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#define AT_SYSINFO_EH_FRAME 33
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/* Note section contents. Each entry in the note section begins with
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@ -1,3 +1,7 @@
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2003-04-15 Ulrich Drepper <drepper@redhat.com>
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* pthreadP.h: Move THREAD_ATOMIC_* replacements to the top.
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2003-04-14 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Don't
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@ -139,6 +139,9 @@ _dl_sysdep_start (void **start_argptr,
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case AT_SYSINFO:
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GL(dl_sysinfo) = av->a_un.a_val;
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break;
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case AT_SYSINFO_EH_FRAME:
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GL(dl_sysinfo_eh_frame) = av->a_un.a_val;
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break;
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#endif
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#ifdef DL_PLATFORM_AUXV
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DL_PLATFORM_AUXV
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@ -160,7 +163,7 @@ _dl_sysdep_start (void **start_argptr,
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SEE (EGID, gid, egid);
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#endif
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/* If one of the two pairs of IDs does not mattch this is a setuid
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/* If one of the two pairs of IDs does not match this is a setuid
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or setgid run. */
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INTUSE(__libc_enable_secure) = uid | gid;
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@ -228,27 +231,28 @@ _dl_show_auxv (void)
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enum { dec, hex, str } form;
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} auxvars[] =
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{
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[AT_EXECFD - 2] = { "AT_EXECFD: ", dec },
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[AT_PHDR - 2] = { "AT_PHDR: 0x", hex },
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[AT_PHENT - 2] = { "AT_PHENT: ", dec },
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[AT_PHNUM - 2] = { "AT_PHNUM: ", dec },
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[AT_PAGESZ - 2] = { "AT_PAGESZ: ", dec },
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[AT_BASE - 2] = { "AT_BASE: 0x", hex },
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[AT_FLAGS - 2] = { "AT_FLAGS: 0x", hex },
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[AT_ENTRY - 2] = { "AT_ENTRY: 0x", hex },
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[AT_NOTELF - 2] = { "AT_NOTELF: ", hex },
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[AT_UID - 2] = { "AT_UID: ", dec },
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[AT_EUID - 2] = { "AT_EUID: ", dec },
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[AT_GID - 2] = { "AT_GID: ", dec },
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[AT_EGID - 2] = { "AT_EGID: ", dec },
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[AT_PLATFORM - 2] = { "AT_PLATFORM: ", str },
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[AT_HWCAP - 2] = { "AT_HWCAP: ", hex },
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[AT_CLKTCK - 2] = { "AT_CLKTCK: ", dec },
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[AT_FPUCW - 2] = { "AT_FPUCW: ", hex },
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[AT_DCACHEBSIZE - 2] = { "AT_DCACHEBSIZE: 0x", hex },
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[AT_ICACHEBSIZE - 2] = { "AT_ICACHEBSIZE: 0x", hex },
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[AT_UCACHEBSIZE - 2] = { "AT_UCACHEBSIZE: 0x", hex },
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[AT_SYSINFO - 2] = { "AT_SYSINFO: 0x", hex }
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[AT_EXECFD - 2] = { "AT_EXECFD: ", dec },
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[AT_PHDR - 2] = { "AT_PHDR: 0x", hex },
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[AT_PHENT - 2] = { "AT_PHENT: ", dec },
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[AT_PHNUM - 2] = { "AT_PHNUM: ", dec },
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[AT_PAGESZ - 2] = { "AT_PAGESZ: ", dec },
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[AT_BASE - 2] = { "AT_BASE: 0x", hex },
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[AT_FLAGS - 2] = { "AT_FLAGS: 0x", hex },
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[AT_ENTRY - 2] = { "AT_ENTRY: 0x", hex },
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[AT_NOTELF - 2] = { "AT_NOTELF: ", hex },
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[AT_UID - 2] = { "AT_UID: ", dec },
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[AT_EUID - 2] = { "AT_EUID: ", dec },
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[AT_GID - 2] = { "AT_GID: ", dec },
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[AT_EGID - 2] = { "AT_EGID: ", dec },
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[AT_PLATFORM - 2] = { "AT_PLATFORM: ", str },
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[AT_HWCAP - 2] = { "AT_HWCAP: ", hex },
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[AT_CLKTCK - 2] = { "AT_CLKTCK: ", dec },
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[AT_FPUCW - 2] = { "AT_FPUCW: ", hex },
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[AT_DCACHEBSIZE - 2] = { "AT_DCACHEBSIZE: 0x", hex },
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[AT_ICACHEBSIZE - 2] = { "AT_ICACHEBSIZE: 0x", hex },
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[AT_UCACHEBSIZE - 2] = { "AT_UCACHEBSIZE: 0x", hex },
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[AT_SYSINFO - 2] = { "AT_SYSINFO: 0x", hex },
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[AT_SYSINFO_EH_FRAME - 2] = { "AT_SYSINFO_EH_FRAME: 0x", hex }
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};
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unsigned int idx = (unsigned int) (av->a_type - 2);
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@ -394,6 +394,9 @@ struct rtld_global
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#ifdef NEED_DL_SYSINFO
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/* Syscall handling improvements. This is very specific to x86. */
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EXTERN uintptr_t _dl_sysinfo;
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/* Address of the unwind info for the vsyscall page. */
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EXTERN uintptr_t _dl_sysinfo_eh_frame;
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#endif
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#ifdef SHARED
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@ -28,6 +28,11 @@ extern void __libc_init_first (int argc, char **argv, char **envp);
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extern int __libc_multiple_libcs;
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extern void *__libc_stack_end;
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#ifdef NEED_DL_SYSINFO
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# include "unwind-dw2-fde.h"
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static struct object eh_obj;
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#endif
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#include <tls.h>
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#ifndef SHARED
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# include <dl-osinfo.h>
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@ -150,6 +155,13 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
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__libc_check_standard_fds ();
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#endif
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#ifdef NEED_DL_SYSINFO
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/* Register the kernel's unwind table. */
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if (GL(dl_sysinfo_eh_frame) != 0)
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INTUSE(__register_frame_info_bases) ((void *) GL(dl_sysinfo_eh_frame),
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&eh_obj, 0, 0);
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#endif
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/* Register the destructor of the dynamic linker if there is any. */
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if (__builtin_expect (rtld_fini != NULL, 1))
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__cxa_atexit ((void (*) (void *)) rtld_fini, NULL, NULL);
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