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Carlos Eduardo Seo 67385a01d2 powerpc: Add hwcap/hwcap2/platform data to TCB.
This patch adds a new feature for powerpc.  In order to get faster access to
the HWCAP/HWCAP2 bits and platform number (i.e. for implementing
__builtin_cpu_is () / __builtin_cpu_supports () in GCC) without the overhead of
reading from the auxiliary vector, we now reserve space for them in the TCB.
This is an ABI change for GLIBC 2.23.

A new versioned symbol '__parse_hwcap_and_convert_at_platform' is available to
get the data from the auxiliary vector and parse it, and store it for later use
in the TLS initialization code.  This function is called very early
(in _dl_sysdep_start () via DL_PLATFORM_INFO for the dynamic linking case, and
in __libc_start_main () for the static linking case) to make sure the data is
available at the time of TLS initialization.

	* sysdeps/powerpc/Makefile (sysdep-dl-routines): Add hwcapinfo.
	(sysdep_routines): Likewise.
	(sysdep-rtld-routines): Likewise.
	[$(subdir) = nptl](tests): Add test-get_hwcap and test-get_hwcap-static
	[$(subdir) = nptl](tests-static): test-get_hwcap-static
	* sysdeps/powerpc/Versions: Added new
	__parse_hwcap_and_convert_at_platform symbol to GLIBC-2.23.
	* sysdeps/powerpc/hwcapinfo.c: New file.
	(__tcb_parse_hwcap_and_convert_at_platform): New function to initialize
	and parse hwcap, hwcap2 and platform number information.
	* sysdeps/powerpc/hwcapinfo.h: New file.  Creates global variables
	to store HWCAP+HWCAP2 and platform number.
	* sysdeps/powerpc/nptl/tcb-offsets.sym: Added new offsets
	for HWCAP+HWCAP2 and platform number in the TCB.
	* sysdeps/powerpc/nptl/tls.h: New functionality.  Stores
	the HWCAP, HWCAP2 and platform number in the TCB.
	(dtv): Added new fields for HWCAP+HWCAP2 and platform number.
	(TLS_INIT_TP): Included calls to add the hwcap and
	at_platform values in the TCB in TP initialization.
	(TLS_DEFINE_INIT_TP): Likewise.
	(THREAD_GET_HWCAP): New macro.
	(THREAD_SET_HWCAP): Likewise.
	(THREAD_GET_AT_PLATFORM): Likewise.
	(THREAD_SET_AT_PLATFORM): Likewise.
	* sysdeps/powerpc/powerpc32/dl-machine.h:
	(dl_platform_init): New function that calls
	__parse_hwcap_and_convert_at_platform for the dymanic linking case for
	powerpc32.
	* sysdeps/powerpc/powerpc64/dl-machine.h: Likewise, for powerpc64.
	* sysdeps/powerpc/test-get_hwcap-static.c: New file.  Testcase for
	this functionality, static linking case.
	* sysdeps/powerpc/test-get_hwcap.c: New file.  Likewise, dynamic
	linking case.
	* sysdeps/unix/sysv/linux/powerpc/libc-start.c: Added call to
	__parse_hwcap_and_convert_at_platform for the static linking case.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist:
	Included the new __parse_hwcap_and_convert_at_platform symbol in the
	ABI list for GLIBC 2.23.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist:
	Likewise.
2015-12-03 13:56:13 -02:00
argp Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
assert Don't macro-expand failed assertion expression [BZ #18604] 2015-11-03 23:26:15 +01:00
benchtests benchtests: Mark output variables as used 2015-11-17 16:01:15 +05:30
bits Add __CPU_MASK_TYPE for __cpu_mask 2015-12-01 10:25:44 -08:00
catgets Fix trailing space. 2015-08-08 15:54:40 -07:00
conf
conform Fix lgamma setting signgam for ISO C (bug 15421). 2015-11-20 22:49:59 +00:00
crypt Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
csu Fix gcrt0.o compilation 2015-08-07 01:38:39 +02:00
ctype Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
debug tst-backtrace4: fix a warning message 2015-10-21 11:24:27 -04:00
dirent Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
dlfcn Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
elf Implement "make update-all-abi" 2015-11-24 17:10:19 +01:00
gmon Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
grp Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
gshadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
hesiod Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
hurd Fix RPC breakage when longjumping from signal handler 2015-11-25 01:09:13 +01:00
iconv Fix BZ #19012 -- iconv_open leaks memory on error path. 2015-10-05 20:03:48 -07:00
iconvdata Comment on IBM930, IBM933, IBM935, IBM937, IBM939. 2015-12-02 22:13:47 -05:00
include Refactor strtod parsing of NaN payloads. 2015-11-24 22:24:52 +00:00
inet Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
intl Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
io Use shell's builtin pwd. 2015-12-02 23:58:15 -05:00
libidn Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
libio Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
locale Rename localedir to complocaledir (bug 14259). 2015-11-27 10:22:38 -05:00
localedata Rename localedir to complocaledir (bug 14259). 2015-11-27 10:22:38 -05:00
login Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
mach Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
malloc malloc: remove redundant getenv call 2015-11-24 20:07:12 +03:00
manual Remove CPU set size checking from affinity functions [BZ #19143] 2015-11-24 17:21:01 +01:00
math Better workaround for aliases of *_finite symbols in vector math library. 2015-11-27 16:22:26 +03:00
mathvec This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
misc misc/tst-tsearch.c: bump up TIMEOUT to 10 seconds. 2015-11-24 14:09:31 -05:00
nis Assume that SOCK_CLOEXEC is available and works 2015-10-17 12:02:37 +02:00
nptl nptl: Fix racy pipe closing in tst-cancel{20,21} 2015-12-02 14:45:50 -02:00
nptl_db Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
nscd use -fstack-protector-strong when available 2015-10-19 15:36:48 -04:00
nss Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
po Update de.po from Translation Project (bug 4404). 2015-09-16 16:51:28 +00:00
posix Convert a few more function definitions to prototype style. 2015-10-21 11:57:23 +00:00
pwd Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
resolv Remove GCC version conditionals on -Wmaybe-uninitialized pragmas. 2015-10-27 23:42:20 +00:00
resource Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
rt Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
scripts Use shell's builtin pwd. 2015-12-02 23:58:15 -05:00
setjmp Modify several tests to use test-skeleton.c 2015-07-15 15:10:23 +05:30
shadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
signal Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
socket Convert 24 more function definitions to prototype style (array parameters). 2015-10-20 11:51:03 +00:00
soft-fp Remove GCC version conditionals on -Wmaybe-uninitialized pragmas. 2015-10-27 23:42:20 +00:00
stdio-common Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
stdlib Refactor strtod parsing of NaN payloads. 2015-11-24 22:24:52 +00:00
streams Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
string Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
sunrpc Convert a few more function definitions to prototype style. 2015-10-21 11:57:23 +00:00
sysdeps powerpc: Add hwcap/hwcap2/platform data to TCB. 2015-12-03 13:56:13 -02:00
sysvipc Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
termios Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
time Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
timezone Update timezone/Makefile to use -Wno-unused-variable 2015-10-07 15:04:49 -07:00
wcsmbs Refactor strtod parsing of NaN payloads. 2015-11-24 22:24:52 +00:00
wctype Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
.gitattributes exempt timezone files from the no-bad-whitespace policy 2009-06-15 18:15:54 +02:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Add arm-nacl port. 2015-04-17 09:02:19 -07:00
aclocal.m4 Rename localedir to complocaledir (bug 14259). 2015-11-27 10:22:38 -05:00
BUGS [BZ #5222] 2007-10-28 08:24:07 +00:00
ChangeLog powerpc: Add hwcap/hwcap2/platform data to TCB. 2015-12-03 13:56:13 -02:00
ChangeLog.1
ChangeLog.2
ChangeLog.3
ChangeLog.4
ChangeLog.5 * sysdeps/posix/getaddrinfo.c: Implement configuration file 2006-05-04 06:38:07 +00:00
ChangeLog.6
ChangeLog.7
ChangeLog.8
ChangeLog.9
ChangeLog.10
ChangeLog.11
ChangeLog.12
ChangeLog.13
ChangeLog.14
ChangeLog.15
ChangeLog.16 Fix typo in name 2012-06-21 16:45:27 +02:00
ChangeLog.17 Revert "Sun agreed to a change of the license for the RPC code to a BSD-like license." 2010-06-27 19:34:03 -07:00
ChangeLog.old-ports Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aarch64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aix Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-alpha Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-am33 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-arm Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-cris Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-hppa Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-ia64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-linux-generic Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-m68k Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-microblaze Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-mips Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-powerpc Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-tile Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
config.h.in Remove -mavx2 configure tests. 2015-10-28 13:29:03 +00:00
config.make.in Rename localedir to complocaledir (bug 14259). 2015-11-27 10:22:38 -05:00
configure Use shell's builtin pwd. 2015-12-02 23:58:15 -05:00
configure.ac Use shell's builtin pwd. 2015-12-02 23:58:15 -05:00
CONFORMANCE Move __STDC_* predefined macros from features.h to stdc-predef.h. 2012-02-22 12:53:04 +00:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
cppflags-iterator.mk
extra-lib.mk Remove NOT_IN_libc 2014-11-24 15:03:45 +05:30
extra-modules.mk Remove NOT_IN_libc 2014-11-24 15:03:45 +05:30
gen-locales.mk Split locale generation snippet into a separate file 2015-05-13 13:05:28 +05:30
INSTALL Require GCC 4.7 or later to build glibc. 2015-10-27 16:34:12 +00:00
libc-abis A few more archs have IFUNC support. 2010-03-17 02:43:12 -07:00
LICENSES Expand LICENSES file. 2012-12-05 21:56:15 +00:00
Makeconfig Rename localedir to complocaledir (bug 14259). 2015-11-27 10:22:38 -05:00
Makefile Implement "make update-all-abi" 2015-11-24 17:10:19 +01:00
Makefile.in Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
Makerules Implement "make update-all-abi" 2015-11-24 17:10:19 +01:00
NAMESPACE
NEWS Remove CPU set size checking from affinity functions [BZ #19143] 2015-11-24 17:21:01 +01:00
o-iterator.mk
PROJECTS
README Another pointless update in README. 2015-02-11 14:39:30 -08:00
Rules Let tests result in UNSUPPORTED; use that for unbuildable C++ cases 2015-03-10 15:13:14 -07:00
shlib-versions This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
test-skeleton.c test-skeleton: add usage information 2015-08-05 04:40:00 -04:00
version.h Open development for 2.23. 2015-08-05 03:01:50 -04:00
WUR-REPORT * posix/unistd.h (setuid, setreuid, seteuid, setresuid): 2012-08-01 18:12:58 +02:00

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