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.

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