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authorUlrich Drepper <drepper@redhat.com>1997-07-28 22:35:20 +0000
committerUlrich Drepper <drepper@redhat.com>1997-07-28 22:35:20 +0000
commit3996f34b46043ed8ea8fdc6f44377d969d64396b (patch)
tree563f433dab9b5299d81ced72885bf1e8c29b9159 /elf/rtld.c
parent0a54e4010fe0085cd36deaff9442a7e88de3270d (diff)
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1997-07-28 23:35 Ulrich Drepper <drepper@cygnus.com> * csu/gmon-start.c (__gmon_start__): Call __monstartup not monstartup. * gmon/gmon.c: Rename moncontrol to __moncontrol and monstartup to __monstartup. * gmon/sys/gmon.h: Fix prototypes. * gmon/sys/gmon_out.h: Pretty print. * gmon/bb_exit_func.c (__bb_exit_func): Use memcpy instead of bcopy. * gmon/gmon.c (__monstartup): Likewise. (write_hist): Remove dependency on 32 int. (_mcleanup): Don't call perror, use fprintf. * elf/dl-load.c: Fix handling of current directory in search path. * elf/Makefile (dl-routines): Add dl-profile. * elf/dl-profile.c: New file. * elf/dl-runtime.c (fixup): Add new parameter with address to store relocation result in to elf_machine_relplt. (profile_fixup): New function. * elf/do-rel.h (elf_dynamic_do_rel): Add new parameter with address to store relocation result in to elf_machine_relplt. * elf/dl-support.c: Define _dl_profile and _dl_profile_map. * elf/dynamic-link.h (ELF_DYNAMIC_RELOCATE): Add new parameter and call elf_machine_runtime_setup with extra argument. * elf/dl-reloc.c (_dl_relocate_object): Add new argument to ELF_DYNAMIC_RELOCATE. * elf/link.h: Add prototypes for new functions and variables. * elf/rtld.c: Parse LD_PROFILE and LD_PROFILE_OUTPUT environment variables and call _dl_start_profile if necessary. * include/sys/gmon_out.h: New file. * sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Add new parameter to enable profiling. (elf_machine_rela): Add new parameter to specify place to store result in. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/mips/mips64/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/sparc/dl-machine.h: Likewise. * sysdeps/sparc64/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. (elf_machine_runtime_setup): Setup got[2] to _dl_runtime_resolve if we do profiling. (ELF_MACHINE_RUNTIME_TRAMPOLINE): Add code for _dl_runtime_profile. * nis/nss_compat/compat-grp.c (internal_setgrent): Set FD_CLOEXEC for stream on input file. * nis/nss_compat/compat-pwd.c (internal_setpwent): Likewise. * nis/nss_compat/compat-spwd.c (internal_setspent): Likewise. * nss/nss_db/db-XXX.c (internal_setent): Likewise. * nss/nss_db/db-alias.c (internal_setent): Likewise. * nss/nss_db/db-netgrp.c (internal_setent): Likewise. * nss/nss_files/files-XXX.c (internal_setent): Likewise. * nss/nss_files/files-alias.c (internal_setent): Likewise. * nss/nss_files/files-netgrp.c (internal_setent): Likewise. * string/string.h: Pretty print. * sysdeps/i386/fpu/bits/mathinline.h: Major update by John Bowman. Add float and long double versions. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/rtld.c (print_unresolved): Replace empty object name by main program name. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/htons.c (htons): Renamed from __htons. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/bits/byteswap.h: New file. 1997-07-27 23:50 Philip Blundell <Philip.Blundell@pobox.com> * inet/netinet/icmp6.h: Update for new drafts of POSIX.1g and IPv6 advanced API. * inet/netinet/in.h: Likewise. * inet/netinet/ip6.h: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * posix/sys/types.h: Add socklen_t. * manual/socket.texi: Document some more IPv6 things. * manual/libc.texinfo: Likewise. 1997-07-26 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libc.map: Define missing symbol. 1997-07-27 14:31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/Makefile: Add nis_findserv. * nis/lckcache.c: Fix typo. * nis/nis_call.c: Fix problems with multihomed servers. * nis/nis_findserv.c: New file. * nis/nis_intern.h: Add more prototypes. * nis/nis_lookup.c (nis_lookup): Don't try the next server if network is unreachable. * nis/nis_table.c (nis_list): Likewise. * nis/nis_ping.c (nis_ping): Use MASTER_ONLY, don't call abort() in error case. * nis/nis_util.c (__nis_finddirectory): Give the right error code back. * nis/ypclnt.c: Make sure, that all sockets are closed.
Diffstat (limited to 'elf/rtld.c')
-rw-r--r--elf/rtld.c32
1 files changed, 31 insertions, 1 deletions
diff --git a/elf/rtld.c b/elf/rtld.c
index 7189ca6..726463c 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -61,6 +61,9 @@ int _dl_verbose;
const char *_dl_platform;
size_t _dl_platformlen;
struct r_search_path *_dl_search_paths;
+const char *_dl_profile;
+const char *_dl_profile_output;
+struct link_map *_dl_profile_map;
/* Set nonzero during loading and initialization of executable and
libraries, cleared before the executable's entry point runs. This
@@ -109,7 +112,7 @@ _dl_start (void *arg)
/* Relocate ourselves so we can do normal function calls and
data access using the global offset table. */
- ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0);
+ ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, 0);
/* Now life is sane; we can call functions and access global data.
Set up to use the operating system facilities, and find out from
@@ -269,6 +272,26 @@ dl_main (const ElfW(Phdr) *phdr,
else
lazy = !__libc_enable_secure && *(getenv ("LD_BIND_NOW") ?: "") == '\0';
+ /* See whether we want to use profiling. */
+ _dl_profile = getenv ("LD_PROFILE");
+ if (_dl_profile != NULL)
+ if (_dl_profile[0] == '\0')
+ /* An empty string is of not much help. Disable profiling. */
+ _dl_profile = NULL;
+ else
+ {
+ /* OK, we have the name of a shared object we want to
+ profile. It's up to the user to provide a good name, it
+ must match the file name or soname of one of the loaded
+ objects. Now let's see where we are supposed to place the
+ result. */
+ _dl_profile_output = getenv ("LD_PROFILE_OUTPUT");
+
+ if (_dl_profile_output == NULL || _dl_profile_output[0] == '\0')
+ /* This is the default place. */
+ _dl_profile_output = "/var/tmp";
+ }
+
/* Set up a flag which tells we are just starting. */
_dl_starting_up = 1;
@@ -814,6 +837,11 @@ of this helper program; chances are you did not intend to run this program.\n",
_dl_debug_state ();
}
+ /* Now enable profiling if needed. */
+ if (_dl_profile_map != NULL)
+ /* We must prepare the profiling. */
+ _dl_start_profile (_dl_profile_map, _dl_profile_output);
+
/* Once we return, _dl_sysdep_start will invoke
the DT_INIT functions and then *USER_ENTRY. */
}
@@ -824,6 +852,8 @@ static void
print_unresolved (int errcode __attribute__ ((unused)), const char *objname,
const char *errstring)
{
+ if (objname[0] == '\0')
+ objname = _dl_argv[0] ?: "<main program>";
_dl_sysdep_error (errstring, " (", objname, ")\n", NULL);
}