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20 Commits

Author SHA1 Message Date
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Steve Ellcey
8a71d2e27f Fix MIPS64 memcpy regression. 
The MIPS memcpy optimizations at
<https://sourceware.org/ml/libc-alpha/2015-10/msg00597.html>
introduced a bug causing many string function tests to fail with
segfaults for n32 and n64:

FAIL: string/stratcliff
FAIL: string/test-bcopy
FAIL: string/test-memccpy
FAIL: string/test-memcmp
FAIL: string/test-memcpy
FAIL: string/test-memmove
FAIL: string/test-mempcpy
FAIL: string/test-stpncpy
FAIL: string/test-strncmp
FAIL: string/test-strncpy

(Some failures in other directories could also be caused by this bug.)

The problem is that after the check for whether a word of input is
left that can be copied as a word before moving to byte copies, a load
can occur in the branch delay slot, resulting in a segfault if we are
at the end of a page and the following page is unmapped.  I don't see
how this would have passed the tests as reported in the original patch
posting (different kernel configurations affecting the code setting up
unmapped pages, maybe?), since the tests in question don't appear to
have changed recently.

This patch moves a later instruction into the delay slot, as suggested
at <https://sourceware.org/ml/libc-alpha/2016-01/msg00584.html>.

Tested for n32 and n64.

2016-01-28  Steve Ellcey  <sellcey@imgtec.com>
            Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/mips/memcpy.S (MEMCPY_NAME) [USE_DOUBLE]: Avoid word
	load in branch delay slot when less than a word of input left.
 2016-01-28 01:52:05 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Steve Ellcey
45d8d77ad3 Make performance improvement to MIPS memcpy for small copies. 
* sysdeps/mips/memcpy.S (memcpy):  Add word copies for small aligned
	data.
 2015-10-16 14:32:49 -07:00
Steve Ellcey
e72ad0ef31 2015-02-17 Steve Ellcey <sellcey@imgtec.com> 
* sysdeps/mips/memcpy.S: Move R6 PREFETCH_STORE_HINT check.
	* sysdeps/mips/memset.S: Ditto.
 2015-02-17 13:38:49 -08:00
Joseph Myers
e5e72fe9cd Fix MIPS _COMPILING_NEWLIB -Werror=undef build. 
I see an error

../sysdeps/mips/strcmp.S:25:7: error: "_COMPILING_NEWLIB" is not defined [-Werror=undef]
 #elif _COMPILING_NEWLIB
       ^
cc1: some warnings being treated as errors

in MIPS builds.  (This is with GCC 4.9; it's possible that the DR#412
change in GCC 5 - see
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60570> - means that
-Wundef diagnostics no longer occur for #elif conditions where a
previous group's condition was true, just as with other errors there.)
This patch duly adjusts the conditionals to test whether
_COMPILING_NEWLIB is defined.

	* sysdeps/mips/memcpy.S [_COMPILING_NEWLIB]: Change condition to
	[defined _COMPILING_NEWLIB].
	* sysdeps/mips/memset.S [_COMPILING_NEWLIB]: Likewise.
	* sysdeps/mips/strcmp.S [_COMPILING_NEWLIB]: Likewise.
 2015-02-16 22:18:53 +00:00
Steve Ellcey
e525154e84 2015-02-13 Steve Ellcey <sellcey@imgtec.com> 
* sysdeps/mips/bits/endian.h (__MIPSEB): Use #ifdef instead of #if.
	* sysdeps/mips/memcpy.S (__MIPSEB): Ditto.
	* sysdeps/mips/memset.S (__MIPSEB): Ditto.
 2015-02-13 17:38:06 -08:00
Steve Ellcey
882c4b9f1d 2015-01-05 Steve Ellcey <sellcey@imgtec.com> 
* sysdeps/mips/memcpy.S: Add support for mips32r6/mips64r6.
 2015-01-05 13:28:42 -08:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Steve Ellcey
4c0c0e2aef Fix preprocessor indentation in sysdeps/mips/memcpy.S. 
Checked in as obvious.
 2014-12-22 13:29:20 -08:00
Joseph Myers
2ad7600be7 Move mips from ports to libc. 
I've moved the MIPS port from ports to the main sysdeps hierarchy.
Beyond the README update, the move of the files was simply

git mv ports/sysdeps/mips sysdeps/mips
git mv ports/sysdeps/unix/mips sysdeps/unix/mips
git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips

and in addition to the ChangeLog entries here, I put a note at the top
of ports/ChangeLog.mips similar to those in other files.

Tested that disassembly of installed shared libraries for mips is the
same before and after this patch (except for ld.so where paths in
assertions are involved, as for arm).

	* sysdeps/mips: Move directory from ports/sysdeps/mips.
	* sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory from
	ports/sysdeps/unix/sysv/linux/mips.
	* README: Update listing for mips-*-linux-gnu and
	mips64-*-linux-gnu.

	* sysdeps/mips: Move directory to ../sysdeps/mips.
	* sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory to
	../sysdeps/unix/sysv/linux/mips.
 2014-02-10 23:30:21 +00:00
Roland McGrath
0d5cb2c74f [BZ #2329] 
2006-02-20  Roland McGrath  <roland@redhat.com>
	* sysdeps/mips: Directory removed, saved in ports repository.
	* sysdeps/unix/mips: Likewise.
	* sysdeps/unix/sysv/linux/mips: Likewise.
	* sysdeps/mach/mips: Likewise.
	* sysdeps/mach/hurd/mips: Likewise.
	* shlib-versions: Remove mips matches, now in ports fragment.
	* sysdeps/unix/sysv/linux/kernel-features.h: Likewise.
	* configure.in (machine): Likewise.
	* configure: Regenerated.
2006-02-15  Thomas Schwinge  <tschwinge@gnu.org>

	[BZ #2329]
	* include/unistd.h (__getresuid, __getresgid, __setresuid)
	(__setresgid): Fix argument name order in prototypes.
	* posix/unistd.h (getresuid, getresgid, setresuid, setresgid):
	Likewise.
	* posix/getresuid.c (__getresuid): Fix argument order in definition.
	* posix/getresgid.c (__getresgid): Likewise.
	* posix/setresuid.c (__setresuid): Likewise.
	* posix/setresgid.c (__setresgid): Likewise.
	* sysdeps/mach/hurd/getresuid.c (__getresuid): Likewise.
	* sysdeps/mach/hurd/getresgid.c (__getresgid): Likewise.
	* sysdeps/mach/hurd/setresuid.c (__setresuid): Likewise.
	* sysdeps/mach/hurd/setresgid.c (__setresgid): Likewise.
	Reported by Samuel Thibault <samuel.thibault@ens-lyon.org>.
 2006-02-21 02:30:10 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00
Ulrich Drepper
85dd100310 Update. 
* sysdeps/i386/fpu/ftestexcept.c: Also check SSE status word.

	* include/signal.h: Use libc_hidden_proto for sigaddset and sigdelset.
	* signal/sigaddset.c: Add libc_hidden_def.
	* signal/sigdelset.c: Likewise.

2003-04-29  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/i386/i486/string-inlines.c (__memcpy_g, __strchr_g): Move
	to the end of the file.

	* configure.in: Change __oline__ to $LINENO.
	(HAVE_BUILTIN_REDIRECTION): New check.
	* config.h.in (HAVE_BUILTIN_REDIRECTION): Add.
	* include/libc-symbols.h (libc_hidden_builtin_proto,
	libc_hidden_builtin_def, libc_hidden_builtin_weak,
	libc_hidden_builtin_ver): Define.
	* include/string.h (memchr, memcpy, memmove, memset, strcat, strchr,
	strcmp, strcpy, strcspn, strlen, strncmp, strncpy, strpbrk, strrchr,
	strspn, strstr): Add libc_hidden_builtin_proto.
	* intl/plural.y: Include string.h.
	* sysdeps/alpha/alphaev6/memchr.S (memchr): Add
	libc_hidden_builtin_def.
	* sysdeps/alpha/alphaev6/memcpy.S (memcpy): Likewise.
	* sysdeps/alpha/alphaev6/memset.S (memset): Likewise.
	* sysdeps/alpha/alphaev67/strcat.S (strcat): Likewise.
	* sysdeps/alpha/alphaev67/strchr.S (strchr): Likewise.
	* sysdeps/alpha/alphaev67/strlen.S (strlen): Likewise.
	* sysdeps/alpha/alphaev67/strrchr.S (strrchr): Likewise.
	* sysdeps/alpha/memchr.S (memchr): Likewise.
	* sysdeps/alpha/memset.S (memset): Likewise.
	* sysdeps/alpha/strcat.S (strcat): Likewise.
	* sysdeps/alpha/strchr.S (strchr): Likewise.
	* sysdeps/alpha/strcmp.S (strcmp): Likewise.
	* sysdeps/alpha/strcpy.S (strcpy): Likewise.
	* sysdeps/alpha/strlen.S (strlen): Likewise.
	* sysdeps/alpha/strncmp.S (strncmp): Likewise.
	* sysdeps/alpha/strncpy.S (strncpy): Likewise.
	* sysdeps/alpha/strrchr.S (strrchr): Likewise.
	* sysdeps/arm/memset.S (memset): Likewise.
	* sysdeps/arm/strlen.S (strlen): Likewise.
	* sysdeps/generic/memchr.c (memchr): Likewise.
	* sysdeps/generic/memcpy.c (memcpy): Likewise.
	* sysdeps/generic/memmove.c (memmove): Likewise.
	* sysdeps/generic/memset.c (memset): Likewise.
	* sysdeps/generic/strcat.c (strcat): Likewise.
	* sysdeps/generic/strchr.c (strchr): Likewise.
	* sysdeps/generic/strcmp.c (strcmp): Likewise.
	* sysdeps/generic/strcpy.c (strcpy): Likewise.
	* sysdeps/generic/strcspn.c (strcspn): Likewise.
	* sysdeps/generic/strlen.c (strlen): Likewise.
	* sysdeps/generic/strncmp.c (strncmp): Likewise.
	* sysdeps/generic/strncpy.c (strncpy): Likewise.
	* sysdeps/generic/strpbrk.c (strpbrk): Likewise.
	* sysdeps/generic/strrchr.c (strrchr): Likewise.
	* sysdeps/generic/strspn.c (strspn): Likewise.
	* sysdeps/generic/strstr.c (strstr): Likewise.
	* sysdeps/i386/i486/strcat.S (strcat): Likewise.
	* sysdeps/i386/i486/strlen.S (strlen): Likewise.
	* sysdeps/i386/i586/memcpy.S (memcpy): Likewise.
	* sysdeps/i386/i586/memset.S (memset): Likewise.
	* sysdeps/i386/i586/strchr.S (strchr): Likewise.
	* sysdeps/i386/i586/strcpy.S (strcpy): Likewise.
	* sysdeps/i386/i586/strlen.S (strlen): Likewise.
	* sysdeps/i386/i686/memcpy.S (memcpy): Likewise.
	* sysdeps/i386/i686/memmove.S (memmove): Likewise.
	* sysdeps/i386/i686/memset.S (memset): Likewise.
	* sysdeps/i386/i686/strcmp.S (strcmp): Likewise.
	* sysdeps/i386/memchr.S (memchr): Likewise.
	* sysdeps/i386/memset.c (memset): Likewise.
	* sysdeps/i386/strchr.S (strchr): Likewise.
	* sysdeps/i386/strcspn.S (strcspn): Likewise.
	* sysdeps/i386/strlen.c (strlen): Likewise.
	* sysdeps/i386/strpbrk.S (strpbrk): Likewise.
	* sysdeps/i386/strrchr.S (strrchr): Likewise.
	* sysdeps/i386/strspn.S (strspn): Likewise.
	* sysdeps/ia64/memchr.S (memchr): Likewise.
	* sysdeps/ia64/memcpy.S (memcpy): Likewise.
	* sysdeps/ia64/memmove.S (memmove): Likewise.
	* sysdeps/ia64/memset.S (memset): Likewise.
	* sysdeps/ia64/strcat.S (strcat): Likewise.
	* sysdeps/ia64/strchr.S (strchr): Likewise.
	* sysdeps/ia64/strcmp.S (strcmp): Likewise.
	* sysdeps/ia64/strcpy.S (strcpy): Likewise.
	* sysdeps/ia64/strlen.S (strlen): Likewise.
	* sysdeps/ia64/strncmp.S (strncmp): Likewise.
	* sysdeps/ia64/strncpy.S (strncpy): Likewise.
	* sysdeps/m68k/memchr.S (memchr): Likewise.
	* sysdeps/m68k/strchr.S (strchr): Likewise.
	* sysdeps/mips/mips64/memcpy.S (memcpy): Likewise.
	* sysdeps/mips/mips64/memset.S (memset): Likewise.
	* sysdeps/mips/memcpy.S (memcpy): Likewise.
	* sysdeps/mips/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/strchr.S (strchr): Likewise.
	* sysdeps/powerpc/powerpc32/strcmp.S (strcmp): Likewise.
	* sysdeps/powerpc/powerpc32/strcpy.S (strcpy): Likewise.
	* sysdeps/powerpc/powerpc32/strlen.S (strlen): Likewise.
	* sysdeps/powerpc/powerpc64/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc64/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/strchr.S (strchr): Likewise.
	* sysdeps/powerpc/powerpc64/strcmp.S (strcmp): Likewise.
	* sysdeps/powerpc/powerpc64/strcpy.S (strcpy): Likewise.
	* sysdeps/powerpc/powerpc64/strlen.S (strlen): Likewise.
	* sysdeps/powerpc/strcat.c (strcat): Likewise.
	* sysdeps/sparc/sparc32/memchr.S (memchr): Likewise.
	* sysdeps/sparc/sparc32/memcpy.S (memcpy): Likewise.
	* sysdeps/sparc/sparc32/memset.S (memset): Likewise.
	* sysdeps/sparc/sparc32/strcat.S (strcat): Likewise.
	* sysdeps/sparc/sparc32/strchr.S (strchr, strrchr): Likewise.
	* sysdeps/sparc/sparc32/strcmp.S (strcmp): Likewise.
	* sysdeps/sparc/sparc32/strcpy.S (strcpy): Likewise.
	* sysdeps/sparc/sparc32/strlen.S (strlen): Likewise.
	* sysdeps/sparc/sparc64/sparcv9b/memcpy.S (memcpy, memmove): Likewise.
	* sysdeps/sparc/sparc64/memchr.S (memchr): Likewise.
	* sysdeps/sparc/sparc64/memcpy.S (memcpy, memmove): Likewise.
	* sysdeps/sparc/sparc64/memset.S (memset): Likewise.
	* sysdeps/sparc/sparc64/strcat.S (strcat): Likewise.
	* sysdeps/sparc/sparc64/strchr.S (strchr, strrchr): Likewise.
	* sysdeps/sparc/sparc64/strcmp.S (strcmp): Likewise.
	* sysdeps/sparc/sparc64/strcpy.S (strcpy): Likewise.
	* sysdeps/sparc/sparc64/strcspn.S (strcspn): Likewise.
	* sysdeps/sparc/sparc64/strlen.S (strlen): Likewise.
	* sysdeps/sparc/sparc64/strncmp.S (strncmp): Likewise.
	* sysdeps/sparc/sparc64/strncpy.S (strncpy): Likewise.
	* sysdeps/sparc/sparc64/strpbrk.S (strpbrk): Likewise.
	* sysdeps/sparc/sparc64/strspn.S (strspn): Likewise.
	* sysdeps/sh/memcpy.S (memcpy): Likewise.
	* sysdeps/sh/memset.S (memset): Likewise.
	* sysdeps/sh/strlen.S (strlen): Likewise.
	* sysdeps/s390/s390-32/memchr.S (memchr): Likewise.
	* sysdeps/s390/s390-32/memcpy.S (memcpy): Likewise.
	* sysdeps/s390/s390-32/memset.S (memset): Likewise.
	* sysdeps/s390/s390-32/strcmp.S (strcmp): Likewise.
	* sysdeps/s390/s390-32/strcpy.S (strcpy): Likewise.
	* sysdeps/s390/s390-32/strncpy.S (strncpy): Likewise.
	* sysdeps/s390/s390-64/memchr.S (memchr): Likewise.
	* sysdeps/s390/s390-64/memcpy.S (memcpy): Likewise.
	* sysdeps/s390/s390-64/memset.S (memset): Likewise.
	* sysdeps/s390/s390-64/strcmp.S (strcmp): Likewise.
	* sysdeps/s390/s390-64/strcpy.S (strcpy): Likewise.
	* sysdeps/s390/s390-64/strncpy.S (strncpy): Likewise.
	* sysdeps/x86_64/memcpy.S (memcpy): Likewise.
	* sysdeps/x86_64/memset.S (memset): Likewise.
	* sysdeps/x86_64/strcat.S (strcat): Likewise.
	* sysdeps/x86_64/strchr.S (strchr): Likewise.
	* sysdeps/x86_64/strcmp.S (strcmp): Likewise.
	* sysdeps/x86_64/strcpy.S (strcpy): Likewise.
	* sysdeps/x86_64/strcspn.S (strcspn): Likewise.
	* sysdeps/x86_64/strlen.S (strlen): Likewise.
	* sysdeps/x86_64/strspn.S (strspn): Likewise.
	* string/string-inlines.c: Move...
	* sysdeps/generic/string-inlines.c: ...here.
	(__memcpy_g, __strchr_g): Remove.
	(__NO_INLINE__): Define before including <string.h>,
	undefine after.  Include bits/string.h and bits/string2.h.
	* sysdeps/i386/i486/string-inlines.c: New file.
	* sysdeps/i386/string-inlines.c: New file.
	* sysdeps/i386/i486/Versions: Remove.
	All GLIBC_2.1.1 symbols moved...
	* sysdeps/i386/Versions (libc): ...here.

2003-04-29  Ulrich Drepper  <drepper@redhat.com>
 2003-04-29 22:49:58 +00:00
Alexandre Oliva
8f9fb0000e * sysdeps/mips/mips64/memcpy.S: Fix porting bug that broke unaligned copying of 8-15 bytes. From Chris Demetriou <cgd@broadcom.com>. Fix label names. * sysdeps/mips/mips64/memset.S: Fix label names. Make similar change as to memcpy.S. * sysdeps/mips/memcpy.S: Formatting changes. * sysdeps/mips/memset.S: Likewise. 
2003-03-21  Alexandre Oliva  <aoliva@redhat.com>

	* sysdeps/mips/mips64/memcpy.S: Fix porting bug that broke
	unaligned copying of 8-15 bytes.  From Chris Demetriou
	<cgd@broadcom.com>.  Fix label names.
	* sysdeps/mips/mips64/memset.S: Fix label names.  Make similar
	change as to memcpy.S.
	* sysdeps/mips/memcpy.S: Formatting changes.
	* sysdeps/mips/memset.S: Likewise.
 2003-03-21 21:39:39 +00:00
Alexandre Oliva
ee7b703635 * sysdeps/mips/mips64/memcpy.S, sysdeps/mips/mips64/memset.S: New. * sysdeps/mips/memcpy.S, sysdeps/mips/memset.S: Update comments. 
2003-03-21  Alexandre Oliva  <aoliva@redhat.com>

	* sysdeps/mips/mips64/memcpy.S, sysdeps/mips/mips64/memset.S: New.
	* sysdeps/mips/memcpy.S, sysdeps/mips/memset.S: Update comments.
 2003-03-21 19:44:24 +00:00
Alexandre Oliva
5ace139364 * sysdeps/mips/memcpy.S: Map t0-3 to a4-7 on new abis. * sysdeps/mips/memset.S: Likewise. * sysdeps/mips/sys/regdef.h: Alias a4-7 or t0-3 to $8-11 depending on the ABI. 
* sysdeps/mips/memcpy.S: Map t0-3 to a4-7 on new abis.
	* sysdeps/mips/memset.S: Likewise.
	* sysdeps/mips/sys/regdef.h: Alias a4-7 or t0-3 to $8-11
	depending on the ABI.

2003-03-14  Alexandre Oliva  <aoliva@redhat.com>
 2003-03-14 05:31:28 +00:00
Roland McGrath
d8a5edc221 * elf/dl-load.c (_dl_map_object_from_fd): Bail if no PT_LOAD phdrs 
found.  Reported by Alexandre Oliva <aoliva@redhat.com>.

2003-03-13  Alexandre Oliva  <aoliva@redhat.com>

	* stdio-common/_itoa.c (_itoa_base_table): Make 64-bit
	literals long long.
	* stdlib/fpioconst.c: Likewise.
	* stdlib/strtod.c: Likewise.

	* sysdeps/mips/add_n.S: Use L macro for local labels.
	* sysdeps/mips/addmul_1.S: Likewise.
	* sysdeps/mips/lshift.S: Likewise.
	* sysdeps/mips/memcpy.S: Likewise.
	* sysdeps/mips/memset.S: Likewise.
	* sysdeps/mips/mul_1.S: Likewise.
	* sysdeps/mips/rshift.S: Likewise.
	* sysdeps/mips/sub_n.S: Likewise.
	* sysdeps/mips/submul_1.S: Likewise.
	* sysdeps/mips/mips64/add_n.S: Likewise.
	* sysdeps/mips/mips64/addmul_1.S: Likewise.
	* sysdeps/mips/mips64/lshift.S: Likewise.
	* sysdeps/mips/mips64/mul_1.S: Likewise.
	* sysdeps/mips/mips64/rshift.S: Likewise.
	* sysdeps/mips/mips64/sub_n.S: Likewise.
	* sysdeps/mips/mips64/submul_1.S: Likewise.
	* sysdeps/unix/mips/sysdep.h: Define L() according to ABI
	conventions.  Define END as in sys/asm.h.
	* sysdeps/unix/mips/sysdep.S: Likewise.
	* sysdeps/unix/mips/wait.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S: Likewise.

	* sysdeps/ieee754/dbl-64/dbl2mpn.c (__mpn_extract_double):
	Cast shifted values that may be too narrow to mp_limb_t.
	* sysdeps/ieee754/dbl-64/mpn2dbl.c (__mpn_construct_double):
	Likewise.
	* sysdeps/ieee754/flt-32/mpn2flt.c (__mpn_construct_float):
	Likewise.
	* sysdeps/ieee754/ldbl-128/ldbl2mpn.c
	(__mpn_extract_long_double): Likewise.
	* sysdeps/ieee754/ldbl-128/mpn2ldbl.c
	(__mpn_construct_long_double): Likewise.
	* sysdeps/ieee754/ldbl-96/ldbl2mpn.c
	(__mpn_extract_long_double): Likewise.
	* sysdeps/ieee754/ldbl-96/mpn2ldbl.c
	(__mpn_construct_long_double): Likewise.

2003-03-13  Roland McGrath  <roland@redhat.com>
 2003-03-14 03:59:59 +00:00
Andreas Jaeger
9f70d804bf MIPS specific optimizations. 2002-09-10 11:23:00 +00:00