diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-07-28 22:35:20 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-07-28 22:35:20 +0000 |
commit | 3996f34b46043ed8ea8fdc6f44377d969d64396b (patch) | |
tree | 563f433dab9b5299d81ced72885bf1e8c29b9159 /sysdeps/i386/dl-machine.h | |
parent | 0a54e4010fe0085cd36deaff9442a7e88de3270d (diff) |
Update.cvs/libc-ud-970729
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 'sysdeps/i386/dl-machine.h')
-rw-r--r-- | sysdeps/i386/dl-machine.h | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index d6fc038411..e517cff0ff 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -81,16 +81,20 @@ elf_machine_load_address (void) destroys the passed register information. */ static ElfW(Addr) fixup (struct link_map *l, ElfW(Word) reloc_offset) __attribute__ ((regparm (2), unused)); +static ElfW(Addr) profile_fixup (struct link_map *l, ElfW(Word) reloc_offset, + ElfW(Addr) retaddr) + __attribute__ ((regparm (3), unused)); #endif /* Set up the loaded object described by L so its unrelocated PLT entries will jump to the on-demand fixup code in dl-runtime.c. */ static inline int __attribute__ ((unused)) -elf_machine_runtime_setup (struct link_map *l, int lazy) +elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) { Elf32_Addr *got; extern void _dl_runtime_resolve (Elf32_Word); + extern void _dl_runtime_profile (Elf32_Word); if (l->l_info[DT_JMPREL] && lazy) { @@ -100,9 +104,23 @@ elf_machine_runtime_setup (struct link_map *l, int lazy) and then jump to _GLOBAL_OFFSET_TABLE[2]. */ got = (Elf32_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr); got[1] = (Elf32_Addr) l; /* Identify this shared object. */ - /* This function will get called to fix up the GOT entry indicated by - the offset on the stack, and then jump to the resolved address. */ - got[2] = (Elf32_Addr) &_dl_runtime_resolve; + + /* The got[2] entry contains the address of a function which gets + called to get the address of a so far unresolved function and + jump to it. The profiling extension of the dynamic linker allows + to intercept the calls to collect information. In this case we + don't store the address in the GOT so that all future calls also + end in this function. */ + if (profile) + { + got[2] = (Elf32_Addr) &_dl_runtime_profile; + /* Say that we really want profiling and the timers are started. */ + _dl_profile_map = l; + } + else + /* This function will get called to fix up the GOT entry indicated by + the offset on the stack, and then jump to the resolved address. */ + got[2] = (Elf32_Addr) &_dl_runtime_resolve; } return lazy; @@ -126,12 +144,31 @@ _dl_runtime_resolve: xchgl %eax, (%esp) # Get %eax contents end store function address. ret $8 # Jump to function address. .size _dl_runtime_resolve, .-_dl_runtime_resolve + + .globl _dl_runtime_profile + .type _dl_runtime_profile, @function +_dl_runtime_profile: + pushl %eax # Preserve registers otherwise clobbered. + pushl %ecx + pushl %edx + movl 20(%esp), %ecx # Load return address + movl 16(%esp), %edx # Copy args pushed by PLT in register. Note + movl 12(%esp), %eax # that `fixup' takes its parameters in regs. + call profile_fixup # Call resolver. + popl %edx # Get register content back. + popl %ecx + xchgl %eax, (%esp) # Get %eax contents end store function address. + ret $8 # Jump to function address. + .size _dl_runtime_profile, .-_dl_runtime_profile "); #else # define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ .globl _dl_runtime_resolve + .globl _dl_runtime_profile .type _dl_runtime_resolve, @function + .type _dl_runtime_profile, @function _dl_runtime_resolve: +_dl_runtime_profile: pushl %eax # Preserve registers otherwise clobbered. pushl %ecx pushl %edx @@ -147,6 +184,7 @@ _dl_runtime_resolve: xchgl %eax, (%esp) # Get %eax contents end store function address. ret $8 # Jump to function address. .size _dl_runtime_resolve, .-_dl_runtime_resolve + .size _dl_runtime_profile, .-_dl_runtime_profile "); #endif /* The PLT uses Elf32_Rel relocs. */ @@ -261,10 +299,9 @@ extern char **_dl_argv; static inline void elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc, - const Elf32_Sym *sym, const struct r_found_version *version) + const Elf32_Sym *sym, const struct r_found_version *version, + Elf32_Addr *const reloc_addr) { - Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); - if (ELF32_R_TYPE (reloc->r_info) == R_386_RELATIVE) { #ifndef RTLD_BOOTSTRAP |