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Adhemerval Zanella 3c7f1f59cd Consolidate lseek/lseek64/llseek implementations
This patch consolidates all Linux lseek/lseek64/llseek implementation
in on on sysdeps/unix/sysv/linux/lseek{64}.c.  It also removes the llseek
file and instead consolidate the LFS lseek implementation on lseek64.c
as for other LFS symbols implementations.

The general idea is:

  - lseek: ABIs that not define __OFF_T_MATCHES_OFF64_T will preferable
  use __NR__llseek if kernel supports it, otherwise they will use __NR_lseek.
  ABIs that defines __OFF_T_MATCHES_OFF64_T won't produce any symbol.

  - lseek64: ABIs with __OFF_T_MATCHES_OFF64_T will preferable use __NR_lseek
  (since it will use 64-bit arguments without low/high splitting) and
  __NR__llseek if __NR_lseek is not defined (for some ILP32 ports).

  - llseek: files will be removed and symbols will be aliased ot lseek64.

ABI without __OFF_T_MATCHES_OFF64_T and without __NR_llseek (basically MIPS64n32
so far) are covered by building lseek with off_t as expected and lseek64
using __NR_lseek (as expected for off64_t being passed using 64-bit registers).

For this consolidation I mantained the x32 assembly specific implementation
because to correctly fix this it would required both the x32 fix for
{INLINE,INTERNAL}_SYSCALL [1] and a wrapper to correctly subscribe it to
return 64 bits instead of default 32 bits (as for times).  It could a future
cleanup.

It is based on my previous {INTERNAL,INLINE}_SYSCALL_CALL macro [2],
although it is mainly for simplification.

Tested on x86_64, i686, aarch64, armhf, and powerpc64le.

	* nptl/Makefile (libpthread-routines): Remove ptw-llseek and add
	ptw-lseek64.
	* sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Remove llseek.
	* sysdeps/unix/sysv/linux/alpha/Makefile  (sysdeps_routines):
	Likewise.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c: Remove file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c: Remove file.
	* sysdeps/unix/sysv/linux/mips/mips64/llseek.c: Likewise.
	* sysdeps/unix/sysv/linux/llseek.c: Remove file.
	* sysdeps/unix/sysv/linux/lseek.c: New file.
	* sysdeps/unix/sysv/linux/lseek64.c: Add default Linux implementation.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list: Remove lseek and
	__libc_lseek64 from auto-generation.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/lseek64.S: New file.

[1] https://sourceware.org/ml/libc-alpha/2016-08/msg00443.html
[2] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
2016-11-08 16:04:33 -02:00
argp Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
assert Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
benchtests Use -fno-builtin for sqrt benchmark. 2016-10-21 21:18:03 +00:00
bits Define wordsize.h macros everywhere 2016-11-04 09:37:44 -07:00
catgets Fix building glibc master with NDEBUG and --with-cpu. 2016-03-15 23:23:24 -04:00
conform Fix linknamespace parallel test failures. 2016-11-03 22:47:02 +00:00
crypt crypt: Use internal names for the SHA-2 block functions 2016-10-28 21:49:21 +02:00
csu Remove __libc_csu_irel declaration 2016-09-10 15:50:53 +05:30
ctype Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
debug Add tests for fortification of bcopy and bzero. 2016-08-19 09:04:35 -04:00
dirent Deprecate readdir_r, readdir64_r [BZ #19056] 2016-02-20 12:56:55 +01:00
dlfcn Fix warning caused by unused-result in bug-atexit3-lib.cc 2016-10-28 19:26:14 -02:00
elf Add include/crypt.h. 2016-10-28 22:40:16 -04:00
gmon Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
gnulib Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
grp Don't install the internal header grp-merge.h 2016-07-18 09:33:21 -03:00
gshadow Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
hesiod hesiod: Avoid heap overflow in get_txt_records [BZ #20031] 2016-05-02 16:04:32 +02:00
hurd hurdmalloc: Run fork handler as late as possible [BZ #19431] 2016-09-22 01:45:48 +02:00
iconv gconv.h: fix build with GCC 7 2016-11-06 21:33:10 +01:00
iconvdata Bug 20729: Fix building with -Os. 2016-10-29 23:50:56 -04:00
include Bug 20729: Fix building with -Os. 2016-10-29 23:50:56 -04:00
inet Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
intl hurd: fix pathconf visibility 2016-09-18 23:45:12 +02:00
io Consolidate posix_fallocate{64} implementations 2016-10-07 14:16:41 -03:00
libidn Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libio Fix tst-memstream3 build failure 2016-10-02 10:24:32 -03:00
locale Bug 20729: Include libc-internal.h where required. 2016-10-31 16:46:57 -04:00
localedata localedata: lt_LT: use hyphens in d_fmt [BZ #20497] 2016-08-24 16:07:02 -04:00
login 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
mach Fix old-style function definition 2016-09-20 23:10:51 +02:00
malloc malloc: Update comments about chunk layout 2016-10-28 22:36:58 +02:00
manual Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139). 2016-11-04 16:49:06 +00:00
math Speed up math/test-tgmath2.c 2016-11-04 15:59:22 -07:00
mathvec Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
misc hurd: Fix unused variable warning 2016-10-10 22:45:18 +02:00
nis Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
nptl Consolidate lseek/lseek64/llseek implementations 2016-11-08 16:04:33 -02:00
nptl_db Bug 20729: Include libc-internal.h where required. 2016-10-31 16:46:57 -04:00
nscd Fix incorrect double-checked locking related to _res_hconf.initialized. 2016-08-18 20:53:37 +02:00
nss Fix incorrect double-checked locking related to _res_hconf.initialized. 2016-08-18 20:53:37 +02:00
po Update PO files. 2016-08-04 11:41:27 -04:00
posix Properly initialize glob structure with GLOB_BRACE|GLOB_DOOFFS (bug 20707) 2016-10-31 12:36:08 +01:00
pwd Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
resolv Bug 20729: Fix build failures on ppc64 and other arches. 2016-11-02 13:01:36 -04:00
resource Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rt Use libc_ifunc macro for clock_* symbols in librt. 2016-10-07 10:12:47 +02:00
scripts Make check-installed-headers.sh ignore sys/sysctl.h for x32. 2016-11-07 23:32:17 +00:00
setjmp Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
shadow Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
signal Installed-header hygiene (BZ#20366): time.h types. 2016-09-23 08:43:56 -04:00
socket Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
soft-fp [soft-fp] Add support for various half-precision conversion routines. 2016-09-21 21:02:54 +00:00
stdio-common Fix warning from latest GCC in tst-printf.c 2016-11-01 16:00:09 -07:00
stdlib Make strtod raise "inexact" exceptions (bug 19380). 2016-10-28 00:40:23 +00:00
streams Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
string Bug 20729: Fix building with -Os. 2016-10-29 23:50:56 -04:00
sunrpc Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
sysdeps Consolidate lseek/lseek64/llseek implementations 2016-11-08 16:04:33 -02:00
sysvipc Installed-header hygiene (BZ#20366): time.h types. 2016-09-23 08:43:56 -04:00
termios Declare tcgetsid for XPG4 (bug 20055). 2016-05-11 18:05:37 +00:00
time Fix -Wformat-length warning in time/tst-strptime2.c 2016-11-02 16:00:39 -07:00
timezone Remove mention of checktab.awk in timezone/README. 2016-03-14 14:11:51 -04:00
wcsmbs Add tst-wcstod-round 2016-08-19 11:17:07 -05:00
wctype Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.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
ChangeLog Consolidate lseek/lseek64/llseek implementations 2016-11-08 16:04:33 -02:00
ChangeLog.1
ChangeLog.2
ChangeLog.3
ChangeLog.4
ChangeLog.5
ChangeLog.6 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.7 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.8 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.9
ChangeLog.10 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.11 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.12 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.13
ChangeLog.14 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.15
ChangeLog.16
ChangeLog.17
ChangeLog.old-ports
ChangeLog.old-ports-aarch64
ChangeLog.old-ports-aix
ChangeLog.old-ports-alpha
ChangeLog.old-ports-am33
ChangeLog.old-ports-arm
ChangeLog.old-ports-cris
ChangeLog.old-ports-hppa
ChangeLog.old-ports-ia64
ChangeLog.old-ports-linux-generic
ChangeLog.old-ports-m68k
ChangeLog.old-ports-microblaze
ChangeLog.old-ports-mips
ChangeLog.old-ports-powerpc
ChangeLog.old-ports-tile
config.h.in Add configure check to test if gcc supports attribute ifunc. 2016-10-07 10:02:59 +02:00
config.make.in Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
configure Add configure check to test if gcc supports attribute ifunc. 2016-10-07 10:02:59 +02:00
configure.ac Add configure check to test if gcc supports attribute ifunc. 2016-10-07 10:02:59 +02:00
CONFORMANCE
COPYING
COPYING.LIB
cppflags-iterator.mk
extra-lib.mk
extra-modules.mk
gen-locales.mk Split locale generation snippet into a separate file 2015-05-13 13:05:28 +05:30
INSTALL Add configure check to test if gcc supports attribute ifunc. 2016-10-07 10:02:59 +02:00
libc-abis
LICENSES
Makeconfig Generate .op pattern rules for profiling builds only 2016-09-21 10:45:19 +02:00
Makefile Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Avoid running $(CXX) during build to obtain header file paths 2016-09-21 10:45:32 +02:00
NAMESPACE
NEWS Add SNAN, SNANF, SNANL macros. 2016-10-28 21:16:58 +00:00
o-iterator.mk
PROJECTS
README Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
Rules Do not generate UNRESOLVED results for run-built-tests = no. 2016-11-04 21:29:00 +00:00
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 Document do_test in test-skeleton.c 2016-11-07 08:28:52 -08:00
version.h Open development for 2.25. 2016-08-01 23:00:21 -04:00
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