Update.

1997-09-11 04:36  Ulrich Drepper  <drepper@cygnus.com>

	* db2/db_int.h: Define __set_errno if not yet available.
	* db2/btree/bt_rec.c: Use __set_errno to set errno value.
	* db2/clib/getlong.c: Likewise.
	* db2/db185/db185.c: Likewise.
	* db2/db185/db185_int.h: Likewise.
	* db2/dbm/dbm.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log_archive.c: Likewise.

	* elf/dl-profile.c: Implement mcount function.

	* gmon/gmon.c: Use __profil not profil because of namespace pollution.
	* gmon/mcount.c: Remove BSD kernel code.
	Use compare&swap instruction if possible to change state variable.
	Optimize frompc folding.
	* gmon/sys/gmon.h (struct gmonparam): Change state field to long int.
	* sysdeps/i386/i486/atomicity.h: New file.
	* sysdeps/stub/atomicity.h: New file.
	* sysdeps/mach/hurd/profil.c: Define function as __profil and make
	profil weak alias.
	* sysdeps/posix/profil.c: Likewise.

	* string/bits/string2.h: New file.
	* include/bits/string2.h: New file.
	* string/Makefile (routines): Add mempcpy.
	(tests): Add inl-tester.
	Remove _D__NO_STRING_INLINES from CFLAGS-* variables.
	* sysdeps/generic/mempcpy.c: New file.
	* sysdeps/generic/memccpy.c: Undef function name to enable definition
	as macro.
	* sysdeps/generic/memchr.c: Likewise.
	* sysdeps/generic/memcmp.c: Likewise.
	* sysdeps/generic/memmem.c: Likewise.
	* sysdeps/generic/memmove.c: Likewise.
	* sysdeps/generic/strcat.c: Likewise.
	* sysdeps/generic/strchr.c: Likewise.
	* sysdeps/generic/strcmp.c: Likewise.
	* sysdeps/generic/strcpy.c: Likewise.
	* sysdeps/generic/strcspn.c: Likewise.
	* sysdeps/generic/strlen.c: Likewise.
	* sysdeps/generic/strncat.c: Likewise.
	* sysdeps/generic/strncmp.c: Likewise.
	* sysdeps/generic/strncpy.c: Likewise.
	* sysdeps/generic/strpbrk.c: Likewise.
	* sysdeps/generic/strrchr.c: Likewise.
	* sysdeps/generic/strsep.c: Likewise.
	* sysdeps/generic/strspn.c: Likewise.
	* sysdeps/generic/strstr.c: Likewise.
	* sysdeps/generic/strtok.c: Likewise.
	* sysdeps/generic/strtok_r.c: Likewise.
	* sysdeps/i386/memset.c: Likewise.
	* sysdeps/i386/bits/string.h: Correct a few types and constraints.
	* sysdeps/i386/i486/bits/string.h: Heavy rewrites and optimizations.
	* string/stratcliff.c: Undefine __USE_STRING_INLINES.
	* string/tst-strlen.c: Likewise.
	* string/string.h: Add prototype for mempcpy.  Include bits/string2.h
	header always if optimizing.
	* intl/dcgettext.c: Don't unconditionally define stpcpy, only if not
	yet defined.
	* intl/l10nflist.c: Likewise.

	* string/tester.c: Add copyright and make little cleanups.

	* inet/test_ifindex.c: Change type of ni variable to unsigned int.

	* locale/programs/ld-ctype.c (struct locale_ctype_t): Change type
	of fields map_collection_max and map_collection_act to size_t.

	* nss/libnss_files.map: Group entries.

	* posix/unistd.h: Add prototype for __setpgid and __profil.

	* sysdeps/generic/crypt.h: Declare __crypt_r.

	* sysdeps/i386/bits/select.h: Fix fatal bugs, use correct casts now.

	* sysdeps/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal,
	isless, islessequal, islessgreater, isunordered): Optimize a bit.

	* sysdeps/stub/ftruncate.c: Include missing header for prototype.
	* sysdeps/stub/getdents.c: Likewise.
	* sysdeps/stub/reboot.c: Likewise.
	* sysdeps/stub/swapon.c: Likewise.
	* sysdeps/stub/syscall.c: Likewise.
	* sysdeps/stub/ualarm.c: Likewise.
	* sysdeps/stub/usleep.c: Likewise.

	* sysdeps/unix/sysv/linux/if_index.c: Don't compile or use opensock
	if SIOGIFINDEX and SIOGIFNAME are not defined.

	* sysdeps/unix/sysv/linux/net/if.h: Add IFF_PORTSEL and IFF_AUTOMEDIA
	according to recent kernel changes.

1997-09-10 21:32  Klaus Espenlaub  <kespenla@student.informatik.uni-ulm.de>

	* Makeconfig: Use $(have-initfini) instead of $(elf) to figure out
	the installed name of the startup code.
	(common-generated): Add version.mk.
	* Makefile (distclean-1): Add glibcbug.
	* Makerules: Replace -lgcc by $(gnulib).
	* catgets/Makefile (generated): Add xmalloc.o.
	* csu/Makefile (generated): Replace align.h and end.h by defs.h to
	match the generated file.
	* manual/Makefile (mostlyclean): Add stub-manual and stamp.o.
	(realclean): Changed to remove chapters-incl[12].
	* po/Makefile (realclean): New rule to remove the generated .mo files.
	* time/Makefile: Only include zonefile dependencies if $(no_deps) is
	not true to avoid make clean failure when directory time doesn't exist
	yet.
	(generated): Add tzselect.

	* stdio/fgets.c (fgets): Add casts to reduce gcc warning noise.
	* stdio/internals.c (flushbuf): Likewise.
	* stdio/linewrap.c (lwupdate): Likewise.
	* stdio/memstream.c (enlarge_buffer): Likewise.
	* stdio-common/vfscanf.c (_IO_vfscanf): Likewise.
	* time/tzset.c (compute_change): Likewise.
	* misc/init-misc.c (__init_misc): Only declare static if HAVE_GNU_LD
	is defined.
	* sysdeps/posix/pipestream.c (FUNC): Change to generate ANSI C style
	functions.
	* sysdeps/stub/init-posix.c: Likewise.
	* sysdeps/stub/profil.c: Likewise.
	* munch-tmpl.c (__libc_init): Convert to ANSI C style declaration to
	reduce gcc warning noise.
	* stdio/glue.c (_filbuf, _flsbuf): Likewise.
	* stdio/obstream.c (grow, seek, input, init_obstream): Likewise.
	* stdio/vasprintf.c (enlarge_buffer): Likewise.
	* sysdeps/generic/sysd-stdio.c (__stdio_read, __stdio_write,
	__stdio_seek, __stdio_close, __stdio_fileno, __stdio_open,
	__stdio_reopen): Likewise.
	* sysdeps/posix/defs.c (_cleanup): Likewise.
	* time/offtime.c (__offtime): Add cast.

	* posix/getopt.c: Don't use text_set_element if not defined.

	* configure.in: Provide a check for underscores before user labels
	that works even when the compiler used for building doesn't work
	(like when there is no C library).  Use the old way if the compiler
	works.

1997-09-10 05:08  David S. Miller  <davem@caip.rutgers.edu>

	* sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: The TC* ioctls use
	'T' not 't' on SparcLinux.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h: tcflag_t is 32 bits.

	* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add aliases for
	_longjmp and siglongjmp.

1997-09-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/stdio.h: Add format attributes to the extra printf and
	scanf like functions.
	* stdio/stdio.h: Likewise.

1997-09-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r):
	Print tablename_val, not tablename_len.

	* nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r):
	Use sprintf instead of sprintf, the string always fits.
	* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_gethostbyaddr_r):
	Likewise.
	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r):
	Likewise.
	* nis/nss_nisplus/nisplus-proto.c
	(_nss_nisplus_getprotobynumber_r): Likewise.
	* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_getrpcbynumber_r):
	Likewise.
	* nis/nss_nisplus/nisplus-service.c
	(_nss_nisplus_getservbynumber_r): Likewise.

	* nis/nss_nisplus/nisplus-alias.c (_nss_create_tablename): Use
	__stpcpy, __stpncpy and __strdup instead of public names.
	* nis/nss_nisplus/nisplus-ethers.c (_nss_create_tablename):
	Likewise.
	* nis/nss_nisplus/nisplus-grp.c (_nss_create_tablename): Likewise.
	* nis/nss_nisplus/nisplus-hosts.c (_nss_create_tablename):
	Likewise.
	* nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_parse_netgroup):
	Likewise.
	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
	Likewise.
	(_nss_create_tablename): Likewise.
	* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
	Likewise.
	(_nss_create_tablename): Likewise.
	* nis/nss_nisplus/nisplus-pwd.c (_nss_create_tablename):
	Likewise.
	* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent):
	Likewise.
	(_nss_create_tablename): Likewise.
	* nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent):
	Likewise.
	(_nss_create_tablename): Likewise.
	* nis/nss_nisplus/nisplus-spwd.c (_nss_create_tablename):
	Likewise.

	* libc.map: Export __stpcpy and __strdup.

1997-09-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c,
	CFLAGS-test-ldouble.c): Pass -ffloat-store to avoid excessive
	precision.

1997-09-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* include/rpc/auth_des.h: New file.

1997-09-09  Paul Eggert  <eggert@twinsun.com>

	* time/mktime.c (__mktime_internal): Declare sec_requested even if
	!LEAP_SECONDS_POSSIBLE, since it's needed at the end when checking
	for time_t overflow.

1997-09-09 22:11  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/posix/getcwd.c: Correct test for too small buffer.
	Reported by Erik Troan <ewt@redhat.com>.

	* elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>.
	* elf/dl-open.c: Likewise.

1997-09-07 17:09  Richard Henderson  <rth@cygnus.com>

	* sysdeps/alpha/Makefile: Kill setjmp_aux.
	* sysdeps/alpha/bits/setjmp.h: Rewrite in terms of an array.
	* sysdeps/alpha/__longjmp.c: Remove.
	* sysdeps/alpha/setjmp_aux.c: Remove.
	* sysdeps/alpha/__longjmp.S: New file.
	* sysdeps/alpha/bsd-_setjmp.S: Stub out.
	* sysdeps/alpha/bsd-setjmp.S: Likewise.
	* sysdeps/alpha/setjmp.S: Do the work; don't call __setjmp_aux.
	Move _setjmp and setjmp from bsd-*.S.

1997-09-06  20:20  Ulrich Drepper  <drepper@cygnus.com>

	* include/rpc/auth.h: New file.
	* include/rpc/auth_unix.h: New file.

1997-09-06  Paul Eggert  <eggert@twinsun.com>

	Fix gmtime so that it reports leap seconds when TZ
	indicates that leap seconds are desired.

	* time/gmtime.c (<stddef.h>): Remove unnecessary include.
	(gmtime): Put after gmtime_r, to help the compiler inline.
	(__tz_convert): New decl.
	(gmtime_r): Use __tz_convert instead of __offtime,
	so that leap seconds are handled correctly.

	* time/localtime.c (<errno.h>, <libc-lock.h>): Remove includes that
	are now unnecessary.
	(__tzset_internal, __tz_compute, __tzfile_compute, __use_tzfile,
	__tzset_lock): Remove extern decls that are now unnecessary.
	(localtime_internal): Moved to __tz_convert in tzset.c.
	so that localtime and gmtime can both use it easily.
	(localtime): Put after localtime_r, to help the compiler inline.
	(localtime_r): Use __tz_convert instead of localtime_internal.

	* time/strftime.c (__tz_compute): Remove unused (and now incorrect)
	decl.

	* time/tzfile.c (__tzfile_compute): New arg USE_LOCALTIME.

	* time/tzset.c (<errno.h>): Include.
	(_tmbuf): New decl.
	(__tzfile_compute): New function.
	(tz_compute): Renamed from __tz_compute.  No longer extern.
	Remove redundant call to tzset_internal.
	(tzset_internal): Renamed from __tzset_internal.  No longer extern.
	(tzset_lock): Renamed from __tzset_lock.  No longer extern.
	(__tz_convert): New function, containing functionality of old
	localtime_internal function, plus locking and optional UTC.

1997-09-06  Paul Eggert  <eggert@twinsun.com>

	* time/tzfile.c (__tzfile_read): Don't read a file if TZ is the empty
	string, just use UTC without leap seconds.  This is for compatibility
	with the Olson code.

1997-09-06  Paul Eggert  <eggert@twinsun.com>

	* time/tzset.c (__tzname_max): Lock tz data structures before
	invoking tzset_internal.

	* time/tzfile.c: Define compute_tzname_max statically.

1997-09-07 10:57  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c: Remove not longer necessary HAVE_SECURE_RPC ifdefs.
	* nis/nis_intern.h: Likewise.
	* nis/nss_nis/nis-publickey.c: Likewise.
	* nis/nss_nisplus/nisplus-publickey.c: Likewise.
	* nis/ypclnt.c: Likewise.

	* sunrpc/auth_des.c: Don't dereference NULL pointer,
	initialize ad->ad_timediff.

	* sunrpc/auth_none.c: Don't define our own prototypes, use the one
	from the header files.
	* sunrpc/auth_unix.c: Likewise.
	* sunrpc/clnt_raw.c: Likewise.
	* sunrpc/clnt_tcp.c: Likewise.
	* sunrpc/rpc_cmsg.c: Likewise.

	* sunrpc/key_call.c: Fix signal handling.

	* sunrpc/openchild.c: Don't use /bin/sh to start /usr/etc/keyenvoy,
	or we will get a deadlock with NIS+.

	* sunrpc/rpc/auth.h: Add prototype for xdr_opaque_auth, don't define
	HAVE_SECURE_RPC.

1997-09-07 15:51  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/bits/select.h [__GNUC__] (__FD_ZERO, __FD_SET, __FD_CLR,
	__FD_ISSET): Use correct casts to address array correctly.
	Reported by urbanw@cs.umu.se.

1997-09-07 05:07  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>.
	* elf/dl-open.c: Likewise.
	* sysdeps/i386/memset.c: Undefine memset in case the header with the
	optimized functions is included.
	Patches by NIIBE Yutaka <gniibe@mri.co.jp>.

	* sysdeps/i386/bits/string.h [__PIC__] (strcspn, strspn, strpbrk,
	strsep): Use register for second parameter.
	* sysdeps/i386/i486/bits/string.h: Likewise.
	Reported by NIIBE Yutaka <gniibe@mri.co.jp>.

1997-09-03 09:48  Geoff Keating  <geoffk@ozemail.com.au>

	* math/libm-test.c: Change various tolerances to match what the
	tested routines can actually provide.

	* math/Makefile: Add new tests.
	* math/atest-sincos.c: New file.
	* math/atest-exp.c: New file.

	* csu/Makefile: Give initfini.s and initfiniS.s their own
	CFLAGS-* macros so they can be overridden.
	* sysdeps/powerpc/Makefile [subdir=csu]: Override flags for
	initfiniS.s to use -fpic instead of -fPIC, because the sed script
	breaks otherwise.

	* sysdeps/powerpc/Makefile [build-shared]: Use -fpic not -fPIC for
	efficiency.

	* sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
	Don't use register 0, to let _mcount be in a shared object.

	* sysdeps/powerpc/dl-machine.h: Use full sentences in comments.
	Generally clean up.  Suppress some code we don't need when relocating
	ld.so.
	* sysdeps/powerpc/test-arith.c: Change loop indices to size_t when
	appropriate to suppress gcc warning.
	* resolv/res_send.c: Suppress warning.
	* sunrpc/xdr_sizeof.c: Suppress warning.

	* FAQ: Add ppc-linux.
	* manual/maint.texi: Add ppc-linux.  Explain that gcc can't build it
	yet.

	* sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Correct for
	current kernels.

1997-08-15 07:45  Geoff Keating  <geoffk@ozemail.com.au>

	* stdlib/fmtmsg.c: Use two parameters for __libc_once_define.
	* sysdeps/i386/machine-gmon.h: Correct typo.

	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Change to match
	kernel.

	* sysdeps/generic/dl-sysdep.c: Add hook for bizzare PPC argument hack.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Rewrite to use
	sysdeps/linux/dl-sysdep.c.

	* sysdeps/powerpc/Makefile [subdir=gmon]: Compile ppc-mcount.
	* sysdeps/powerpc/machine-gmon.h: Use ppc-mcount.
	* sysdeps/powerpc/ppc-mcount: New file.

	The following are mostly changes to allow profiling:
	* sysdeps/powerpc/add_n.S: Added.
	* sysdeps/powerpc/add_n.s: Removed.
	* sysdeps/powerpc/addmul_1.S: Added.
	* sysdeps/powerpc/addmul_1.s: Removed.
	* sysdeps/powerpc/bsd-_setjmp.S: Use JUMPTARGET macro.
	* sysdeps/powerpc/bsd-setjmp.S: Use JUMPTARGET macro.
	* sysdeps/powerpc/lshift.S: Added.
	* sysdeps/powerpc/lshift.s: Removed.
	* sysdeps/powerpc/memset.S: Added.
	* sysdeps/powerpc/memset.s: Removed.
	* sysdeps/powerpc/mul_1.S: Added.
	* sysdeps/powerpc/mul_1.s: Removed.
	* sysdeps/powerpc/rshift.S: Added.
	* sysdeps/powerpc/rshift.s: Removed.
	* sysdeps/powerpc/s_copysign.S: Use ENTRY, END, weak_alias macros.
	* sysdeps/powerpc/s_fabs.S: Use ENTRY, END, weak_alias macros.
	* sysdeps/powerpc/setjmp.S: Use JUMPTARGET macro.
	* sysdeps/powerpc/strchr.S: Added.
	* sysdeps/powerpc/strchr.s: Removed.
	* sysdeps/powerpc/strcmp.S: Added.
	* sysdeps/powerpc/strcmp.s: Removed.
	* sysdeps/powerpc/strlen.S: Added.
	* sysdeps/powerpc/strlen.s: Removed.
	* sysdeps/powerpc/sub_n.S: Added.
	* sysdeps/powerpc/sub_n.s: Removed.
	* sysdeps/powerpc/submul_1.S: Added.
	* sysdeps/powerpc/submul_1.s: Removed.
	* sysdeps/unix/sysv/linux/powerpc/_exit.S: Removed.
	* sysdeps/unix/sysv/linux/powerpc/brk.S: Added.
	* sysdeps/unix/sysv/linux/powerpc/brk.c: Removed.
	* sysdeps/unix/sysv/linux/powerpc/clone.S: Use new macros. Fix
	various bugs. Document that it isn't tested.
	* sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Make look like
	sysdeps/unix/_exit.S.
	* sysdeps/unix/sysv/linux/powerpc/socket.S: Use new macros.
	* sysdeps/unix/sysv/linux/powerpc/syscall.S: Use new macros.
	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Define some new macros
	to make assembler (possibly) more portable, allow profiling, etc.

1 files changed, 79 insertions, 73 deletions

diff --git a/sysdeps/powerpc/dl-machine.h b/sysdeps/powerpc/dl-machine.h
index 917e4f7970..771b711a14 100644
--- a/sysdeps/powerpc/dl-machine.h
+++ b/sysdeps/powerpc/dl-machine.h
@@ -149,33 +149,34 @@ elf_machine_load_address (void)
 #define elf_machine_relplt elf_machine_rela
 
 /* This code is used in dl-runtime.c to call the `fixup' function
-   and then redirect to the address it returns. It is called
-   from code built in the PLT by elf_machine_runtime_setup. */
+   and then redirect to the address it returns.  It is called
+   from code built in the PLT by elf_machine_runtime_setup.  */
 #define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
 	.section \".text\"
 	.align 2
 	.globl _dl_runtime_resolve
 	.type _dl_runtime_resolve,@function
 _dl_runtime_resolve:
- # We need to save the registers used to pass parameters.
- # We build a stack frame to put them in.
+ # We need to save the registers used to pass parameters, and register 0,
+ # which is used by _mcount; the registers are saved in a stack frame.
 	stwu 1,-48(1)
-	mflr 0
+	stw 0,12(1)
 	stw 3,16(1)
 	stw 4,20(1)
-	stw 0,52(1)
+ # The code that calls this has put parameters for `fixup' in r12 and r11.
+	mr 3,12
 	stw 5,24(1)
- # We also need to save some of the condition register fields.
-	mfcr 0
+	mr 4,11
 	stw 6,28(1)
+	mflr 0
+ # We also need to save some of the condition register fields.
 	stw 7,32(1)
+	stw 0,52(1)
 	stw 8,36(1)
+	mfcr 0
 	stw 9,40(1)
 	stw 10,44(1)
-	stw 0,12(1)
- # The code that calls this has put parameters for `fixup' in r12 and r11.
-	mr 3,12
-	mr 4,11
+	stw 0,8(1)
 	bl fixup@local
  # 'fixup' returns the address we want to branch to.
 	mtctr 3
@@ -184,20 +185,21 @@ _dl_runtime_resolve:
 	lwz 10,44(1)
 	lwz 9,40(1)
 	mtlr 0
-	lwz 0,12(1)
 	lwz 8,36(1)
+	lwz 0,8(1)
 	lwz 7,32(1)
 	lwz 6,28(1)
 	mtcrf 0xFF,0
 	lwz 5,24(1)
 	lwz 4,20(1)
 	lwz 3,16(1)
+	lwz 0,12(1)
  # ...unwind the stack frame, and jump to the PLT entry we updated.
 	addi 1,1,48
 	bctr
 0:
 	.size	 _dl_runtime_resolve,0b-_dl_runtime_resolve
- # undo '.section text'.
+ # Undo '.section text'.
 	.previous
 ");
 
@@ -213,20 +215,20 @@ asm ("\
 	.type _start,@function
 _start:
  # We start with the following on the stack, from top:
- # argc (4 bytes)
- # arguments for program (terminated by NULL)
- # environment variables (terminated by NULL)
- # arguments for the program loader
+ # argc (4 bytes);
+ # arguments for program (terminated by NULL);
+ # environment variables (terminated by NULL);
+ # arguments for the program loader.
  # FIXME: perhaps this should do the same trick as elf/start.c?
 
  # Call _dl_start with one parameter pointing at argc
-	mr 3,1
+	mr   3,1
  #  (we have to frob the stack pointer a bit to allow room for
  #   _dl_start to save the link register)
-	li 4,0
+	li   4,0
 	addi 1,1,-16
-	stw 4,0(1)
-	bl _dl_start@local
+	stw  4,0(1)
+	bl   _dl_start@local
 
  # Now, we do our main work of calling initialisation procedures.
  # The ELF ABI doesn't say anything about parameters for these,
@@ -234,70 +236,72 @@ _start:
  # Changing these is strongly discouraged (not least because argc is
  # passed by value!).
 
- #  put our GOT pointer in r31
-	bl _GLOBAL_OFFSET_TABLE_-4@local
+ #  Put our GOT pointer in r31,
+	bl   _GLOBAL_OFFSET_TABLE_-4@local
 	mflr 31
- #  the address of _start in r30
-	mr 30,3
- #  &_dl_argc in 29, &_dl_argv in 27, and _dl_default_scope in 28
-	lwz 28,_dl_default_scope@got(31)
-	lwz 29,_dl_argc@got(31)
-	lwz 27,_dl_argv@got(31)
+ #  the address of _start in r30,
+	mr   30,3
+ #  &_dl_argc in 29, &_dl_argv in 27, and _dl_default_scope in 28.
+	lwz  28,_dl_default_scope@got(31)
+	lwz  29,_dl_argc@got(31)
+	lwz  27,_dl_argv@got(31)
 0:
- #  call initfunc = _dl_init_next(_dl_default_scope[2])
-	lwz 3,8(28)
-	bl _dl_init_next@plt
- # if initfunc is NULL, we exit the loop
-	mr. 0,3
-	beq 1f
+ #  Set initfunc = _dl_init_next(_dl_default_scope[2])
+	lwz  3,8(28)
+	bl   _dl_init_next@plt
+ # If initfunc is NULL, we exit the loop; otherwise,
+	cmpwi 3,0
+	beq  1f
  # call initfunc(_dl_argc, _dl_argv, _dl_argv+_dl_argc+1)
-	mtlr 0
-	lwz 3,0(29)
-	lwz 4,0(27)
+	mtlr 3
+	lwz  3,0(29)
+	lwz  4,0(27)
 	slwi 5,3,2
-	add 5,4,5
+	add  5,4,5
 	addi 5,5,4
 	blrl
  # and loop.
-	b 0b
+	b    0b
 1:
  # Now, to conform to the ELF ABI, we have to:
- # pass argv (actually _dl_argv) in r4
-	lwz 4,0(27)
- # pass argc (actually _dl_argc) in r3
-	lwz 3,0(29)
- # pass envp (actually _dl_argv+_dl_argc+1) in r5
+ # Pass argc (actually _dl_argc) in r3;
+	lwz  3,0(29)
+ # pass argv (actually _dl_argv) in r4;
+	lwz  4,0(27)
+ # pass envp (actually _dl_argv+_dl_argc+1) in r5;
 	slwi 5,3,2
-	add 5,4,5
-	addi 5,5,4
- # pass the auxilary vector in r6. This is passed just after _envp.
-	addi 6,5,-4
+	add  6,4,5
+	addi 5,6,4
+ # pass the auxilary vector in r6. This is passed to us just after _envp.
 2:	lwzu 0,4(6)
-	cmpwi 1,0,0
-	bne 2b
+	cmpwi 0,0,0
+	bne  2b
 	addi 6,6,4
- # pass a termination function pointer (in this case _dl_fini) in r7
-	lwz 7,_dl_fini@got(31)
- # now, call the start function in r30...
+ # Pass a termination function pointer (in this case _dl_fini) in r7.
+	lwz  7,_dl_fini@got(31)
+ # Now, call the start function in r30...
 	mtctr 30
- # pass the stack pointer in r1 (so far so good), pointing to a NULL value
- # (this lets our startup code distinguish between a program linked statically,
+	lwz  26,_dl_starting_up@got(31)
+ # Pass the stack pointer in r1 (so far so good), pointing to a NULL value.
+ # (This lets our startup code distinguish between a program linked statically,
  # which linux will call with argc on top of the stack which will hopefully
  # never be zero, and a dynamically linked program which will always have
  # a NULL on the top of the stack).
  # Take the opportunity to clear LR, so anyone who accidentally returns
- # from _start gets SEGV.
-	li 0,0
-	stw 0,0(1)
-	mtlr 0
- # and also clear _dl_starting_up
-	lwz 26,_dl_starting_up@got(31)
-	stw 0,0(26)
- # go do it!
+ # from _start gets SEGV.  Also clear the next few words of the stack.
+	li   31,0
+	stw  31,0(1)
+	mtlr 31
+	stw  31,4(1)
+ 	stw  31,8(1)
+	stw  31,12(1)
+ # Clear _dl_starting_up.
+	stw  31,0(26)
+ # Go do it!
 	bctr
 0:
 	.size	 _start,0b-_start
- # undo '.section text'.
+ # Undo '.section text'.
 	.previous
 ");
 
@@ -346,7 +350,7 @@ static ElfW(Addr) _dl_preferred_address = 1
 
 /* We require the address of the PLT entry returned from fixup, not
    the first word of the PLT entry. */
-#define ELF_FIXUP_RETURN_VALUE(map, result)  (&(result))
+#define ELF_FIXUP_RETURN_VALUE(map, result)  ((Elf32_Addr) &(result))
 
 /* Nonzero iff TYPE should not be allowed to resolve to one of
    the main executable's symbols, as for a COPY reloc.  */
@@ -396,7 +400,7 @@ elf_machine_runtime_setup (struct link_map *map, int lazy, int profile)
 {
   if (map->l_info[DT_JMPREL])
     {
-      int i;
+      Elf32_Word i;
       /* Fill in the PLT. Its initial contents are directed to a
 	 function earlier in the PLT which arranges for the dynamic
 	 linker to be called back.  */
@@ -516,10 +520,10 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 {
 #ifndef RTLD_BOOTSTRAP
   const Elf32_Sym *const refsym = sym;
+  extern char **_dl_argv;
 #endif
   Elf32_Word loadbase, finaladdr;
   const int rinfo = ELF32_R_TYPE (reloc->r_info);
-  extern char **_dl_argv;
 
   if (rinfo == R_PPC_NONE)
     return;
@@ -551,9 +555,9 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 		     + reloc->r_addend);
     }
 
-  /* This is an if/else if chain because GCC 2.7.2.[012] turns case
-     statements into non-PIC table lookups.  When a later version
-     comes out that fixes this, this should be changed.  */
+  /* This is still an if/else if chain because GCC uses the GOT to find
+     the table for table-based switch statements, and we haven't set it
+     up yet.  */
   if (rinfo == R_PPC_UADDR32 ||
       rinfo == R_PPC_GLOB_DAT ||
       rinfo == R_PPC_ADDR32 ||
@@ -561,6 +565,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
     {
       *reloc_addr = finaladdr;
     }
+#ifndef RTLD_BOOTSTRAP
   else if (rinfo == R_PPC_ADDR16_LO)
     {
       *(Elf32_Half*) reloc_addr = finaladdr;
@@ -573,7 +578,6 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
     {
       *(Elf32_Half*) reloc_addr = (finaladdr + 0x8000) >> 16;
     }
-#ifndef RTLD_BOOTSTRAP
   else if (rinfo == R_PPC_REL24)
     {
       Elf32_Sword delta = finaladdr - (Elf32_Word) (char *) reloc_addr;
@@ -693,12 +697,14 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 #endif
     }
 
+#ifndef RTLD_BOOTSTRAP
   if (rinfo == R_PPC_ADDR16_LO ||
       rinfo == R_PPC_ADDR16_HI ||
       rinfo == R_PPC_ADDR16_HA ||
       rinfo == R_PPC_REL24 ||
       rinfo == R_PPC_ADDR24)
     MODIFIED_CODE_NOQUEUE (reloc_addr);
+#endif
 }
 
 #define ELF_MACHINE_NO_REL 1