about summary refs log tree commit diff
path: root/sysdeps/powerpc/powerpc64/sysdep.h
Commit message (Collapse)AuthorAgeFilesLines
* Update copyright dates with scripts/update-copyrightsJoseph Myers2023-01-061-1/+1
|
* powerpc64: Use medium model toc accesses throughoutAlan Modra2022-04-101-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PowerPC64 linker edits medium model toc-indirect code to toc-pointer relative: addis r9,r2,tc_entry_for_var@toc@ha ld r9,tc_entry_for_var@toc@l(r9) becomes addis r9,r2,(var-.TOC.)@ha addi r9,r9,(var-.TOC.)@l when "var" is known to be local to the binary. This isn't done for small-model toc-indirect code, because "var" is almost guaranteed to be too far away from .TOC. for a 16-bit signed offset. And, because the analysis of which .toc entry can be removed becomes much more complicated in objects that mix code models, they aren't removed if any small-model toc sequence appears in an object file. Unfortunately, glibc's build of ld.so smashes the needed objects together in a ld -r linking stage. This means the GOT/TOC is left with a whole lot of relative relocations which is untidy, but in itself is not a serious problem. However, static-pie on powerpc64 bombs due to a segfault caused by one of the small-model accesses before _dl_relocate_static_pie. (The very first one in rcrt1.o passing start_addresses in r8 to __libc_start_main.) So this patch makes all the toc/got accesses in assembly medium code model, and a couple of functions hidden. By itself this is not enough to give us working static-pie, but it is useful in isolation to enable better linker optimisation. There's a serious problem in libgcc too. libgcc ifuncs access the AT_HWCAP words stored in the tcb with an offset from the thread pointer (r13), but r13 isn't set at the time _dl_relocate_static_pie. A followup patch will fix that. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* Update copyright dates with scripts/update-copyrightsPaul Eggert2022-01-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
* powerpc64[le]: Fix CFI and LR save address for asm syscalls [BZ #28532]Matheus Castanho2021-11-301-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Syscalls based on the assembly templates are missing CFI for r31, which gets clobbered when scv is used, and info for LR is inaccurate, placed in the wrong LOC and not using the proper offset. LR was also being saved to the callee's frame, while the ABI mandates it to be saved to the caller's frame. These are fixed by this commit. After this change: $ readelf -wF libc.so.6 | grep 0004b9d4.. -A 7 && objdump --disassemble=kill libc.so.6 00004a48 0000000000000020 00004a4c FDE cie=00000000 pc=000000000004b9d4..000000000004ba3c LOC CFA r31 ra 000000000004b9d4 r1+0 u u 000000000004b9e4 r1+48 u u 000000000004b9e8 r1+48 c-16 u 000000000004b9fc r1+48 c-16 c+16 000000000004ba08 r1+48 c-16 000000000004ba18 r1+48 u 000000000004ba1c r1+0 u libc.so.6: file format elf64-powerpcle Disassembly of section .text: 000000000004b9d4 <kill>: 4b9d4: 1f 00 4c 3c addis r2,r12,31 4b9d8: 2c c3 42 38 addi r2,r2,-15572 4b9dc: 25 00 00 38 li r0,37 4b9e0: d1 ff 21 f8 stdu r1,-48(r1) 4b9e4: 20 00 e1 fb std r31,32(r1) 4b9e8: 98 8f ed eb ld r31,-28776(r13) 4b9ec: 10 00 ff 77 andis. r31,r31,16 4b9f0: 1c 00 82 41 beq 4ba0c <kill+0x38> 4b9f4: a6 02 28 7d mflr r9 4b9f8: 40 00 21 f9 std r9,64(r1) 4b9fc: 01 00 00 44 scv 0 4ba00: 40 00 21 e9 ld r9,64(r1) 4ba04: a6 03 28 7d mtlr r9 4ba08: 08 00 00 48 b 4ba10 <kill+0x3c> 4ba0c: 02 00 00 44 sc 4ba10: 00 00 bf 2e cmpdi cr5,r31,0 4ba14: 20 00 e1 eb ld r31,32(r1) 4ba18: 30 00 21 38 addi r1,r1,48 4ba1c: 18 00 96 41 beq cr5,4ba34 <kill+0x60> 4ba20: 01 f0 20 39 li r9,-4095 4ba24: 40 48 23 7c cmpld r3,r9 4ba28: 20 00 e0 4d bltlr+ 4ba2c: d0 00 63 7c neg r3,r3 4ba30: 08 00 00 48 b 4ba38 <kill+0x64> 4ba34: 20 00 e3 4c bnslr+ 4ba38: c8 32 fe 4b b 2ed00 <__syscall_error> ... 4ba44: 40 20 0c 00 .long 0xc2040 4ba48: 68 00 00 00 .long 0x68 4ba4c: 06 00 5f 5f rlwnm r31,r26,r0,0,3 4ba50: 6b 69 6c 6c xoris r12,r3,26987
* Add build option to disable usage of scv on powerpcMatheus Castanho2021-06-101-8/+8
| | | | | | | | | | | | | | | | | Commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef added support for the scv syscall ABI on powerpc. Since then systems that have kernel and processor support started using scv. However adding the proper support for a new syscall ABI requires changes to several other projects (e.g. qemu, valgrind, strace, kernel), which are gradually receiving support. Meanwhile, having a way to disable scv on glibc at build time can be useful for distros that may encounter conflicts with projects that still do not support the scv ABI, buying time until proper support is added. This commit adds a --disable-scv option that disables scv support and uses sc for all syscalls, like before commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef. Reviewed-by: Raphael M Zinsly <rzinsly@linux.ibm.com>
* powerpc: Fix handling of scv return error codes [BZ #27892]Nicholas Piggin2021-05-241-2/+3
| | | | | | | | | | | When using scv for templated ASM syscalls, current code interprets any negative return value as error, but the only valid error codes are in the range -4095..-1 according to the ABI. This commit also fixes 'signal.gen.test' strace test, where the issue was first identified. Reviewed-by: Matheus Castanho <msc@linux.ibm.com>
* powerpc64: Select POWER9 machine for the scv instructionFlorian Weimer2021-01-221-0/+3
| | | | | | | | | It is not available with the baseline ISA. Fixes commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef ("powerpc: Runtime selection between sc and scv for syscalls"). Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* powerpc: Runtime selection between sc and scv for syscallsMatheus Castanho2020-12-301-6/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux kernel v5.9 added support for system calls using the scv instruction for POWER9 and later. The new codepath provides better performance (see below) if compared to using sc. For the foreseeable future, both sc and scv mechanisms will co-exist, so this patch enables glibc to do a runtime check and use scv when it is available. Before issuing the system call to the kernel, we check hwcap2 in the TCB for PPC_FEATURE2_SCV to see if scv is supported by the kernel. If not, we fallback to sc and keep the old behavior. The kernel implements a different error return convention for scv, so when returning from a system call we need to handle the return value differently depending on the instruction we used to enter the kernel. For syscalls implemented in ASM, entry and exit are implemented by different macros (PSEUDO and PSEUDO_RET, resp.), which may be used in sequence (e.g. for templated syscalls) or with other instructions in between (e.g. clone). To avoid accessing the TCB a second time on PSEUDO_RET to check which instruction we used, the value read from hwcap2 is cached on a non-volatile register. This is not needed when using INTERNAL_SYSCALL macro, since entry and exit are bundled into the same inline asm directive. The dynamic loader may issue syscalls before the TCB has been setup so it always uses sc with no extra checks. For the static case, there is no compile-time way to determine if we are inside startup code, so we also check the value of the thread pointer before effectively accessing the TCB. For such situations in which the availability of scv cannot be determined, sc is always used. Support for scv in syscalls implemented in their own ASM file (clone and vfork) will be added later. For now simply use sc as before. Average performance over 1M calls for each syscall "type": - stat: C wrapper calling INTERNAL_SYSCALL - getpid: templated ASM syscall - syscall: call to gettid using syscall function Standard: stat : 1.573445 us / ~3619 cycles getpid : 0.164986 us / ~379 cycles syscall : 0.162743 us / ~374 cycles With scv: stat : 1.537049 us / ~3535 cycles <~ -84 cycles / -2.32% getpid : 0.109923 us / ~253 cycles <~ -126 cycles / -33.25% syscall : 0.116410 us / ~268 cycles <~ -106 cycles / -28.34% Tested on powerpc, powerpc64, powerpc64le (with and without scv) Tested-by: Lucas A. M. Magalhães <lamm@linux.ibm.com> Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* powerpc64: Fix calls when r2 is not used [BZ #26173]Tulio Magno Quites Machado Filho2020-07-101-1/+7
| | | | | | | | | Teach the linker that __mcount_internal, __sigjmp_save_symbol, __syscall_error and __GI_exit do not use r2, so that it does not need to recover r2 after the call. Test at configure time if the assembler supports @notoc and define USE_PPC64_NOTOC.
* powerpc: Move cache line size to rtld_global_roTulio Magno Quites Machado Filho2020-01-171-0/+24
| | | | | | | | | | | | | | GCC 10.0 enabled -fno-common by default and this started to point that __cache_line_size had been implemented in 2 different places: loader and libc. In order to avoid this duplication, the libc variable has been removed and the loader variable is moved to rtld_global_ro. File sysdeps/unix/sysv/linux/powerpc/dl-auxv.h has been added in order to reuse code for both static and dynamic linking scenarios. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
|
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* powerpc: Only enable TLE with PPC_FEATURE2_HTM_NOSCAdhemerval Zanella2018-09-211-17/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux from 3.9 through 4.2 does not abort HTM transaction on syscalls, instead it suspend and resume it when leaving the kernel. The side-effects of the syscall will always remain visible, even if the transaction is aborted. This is an issue when transaction is used along with futex syscall, on pthread_cond_wait for instance, where the futex call might succeed but the transaction is rolled back leading the pthread_cond object in an inconsistent state. Glibc used to prevent it by always aborting a transaction before issuing a syscall. Linux 4.2 also decided to abort active transaction in syscalls which makes the glibc workaround superfluous. Worse, glibc transaction abortion leads to a performance issue on recent kernels where the HTM state is saved/restore lazily (v4.9). By aborting a transaction on every syscalls, regardless whether a transaction has being initiated before, GLIBS makes the kernel always save/restore HTM state (it can not even lazily disable it after a certain number of syscall iterations). Because of this shortcoming, Transactional Lock Elision is just enabled when it has been explicitly set (either by tunables of by a configure switch) and if kernel aborts HTM transactions on syscalls (PPC_FEATURE2_HTM_NOSC). It is reported that using simple benchmark [1], the context-switch is about 5% faster by not issuing a tabort in every syscall in newer kernels. Checked on powerpc64le-linux-gnu with 4.4.0 kernel (Ubuntu 16.04). * NEWS: Add note about new TLE support on powerpc64le. * sysdeps/powerpc/nptl/tcb-offsets.sym (TM_CAPABLE): Remove. * sysdeps/powerpc/nptl/tls.h (tcbhead_t): Rename tm_capable to __ununsed1. (TLS_INIT_TP, TLS_DEFINE_INIT_TP): Remove tm_capable setup. (THREAD_GET_TM_CAPABLE, THREAD_SET_TM_CAPABLE): Remove macros. * sysdeps/powerpc/powerpc32/sysdep.h, sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION_IMPL, ABORT_TRANSACTION): Remove macros. * sysdeps/powerpc/sysdep.h (ABORT_TRANSACTION): Likewise. * sysdeps/unix/sysv/linux/powerpc/elision-conf.c (elision_init): Set __pthread_force_elision iff PPC_FEATURE2_HTM_NOSC is set. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h, sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h sysdeps/unix/sysv/linux/powerpc/syscall.S (ABORT_TRANSACTION): Remove usage. * sysdeps/unix/sysv/linux/powerpc/not-errno.h: Remove file. Reported-by: Breno Leitão <leitao@debian.org>
* powerpc: Fix syscalls during early process initialization [BZ #22685]Tulio Magno Quites Machado Filho2018-01-191-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | The tunables framework needs to execute syscall early in process initialization, before the TCB is available for consumption. This behavior conflicts with powerpc{|64|64le}'s lock elision code, that checks the TCB before trying to abort transactions immediately before executing a syscall. This patch adds a powerpc-specific implementation of __access_noerrno that does not abort transactions before the executing syscall. Tested on powerpc{|64|64le}. [BZ #22685] * sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Renamed from ABORT_TRANSACTION. (ABORT_TRANSACTION): Redirect to ABORT_TRANSACTION_IMPL. * sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION, ABORT_TRANSACTION_IMPL): Likewise. * sysdeps/unix/sysv/linux/powerpc/not-errno.h: New file. Reuse Linux code, but remove the code that aborts transactions. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> Tested-by: Aurelien Jarno <aurelien@aurel32.net>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Add elision tunablesRogerio Alves2017-12-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds several new tunables to control the behavior of elision on supported platforms[1]. Since elision now depends on tunables, we should always *compile* with elision enabled, and leave the code disabled, but available for runtime selection. This gives us *much* better compile-time testing of the existing code to avoid bit-rot[2]. Tested on ppc, ppc64, ppc64le, s390x and x86_64. [1] This part of the patch was initially proposed by Paul Murphy but was "staled" because the framework have changed since the patch was originally proposed: https://patchwork.sourceware.org/patch/10342/ [2] This part of the patch was inititally proposed as a RFC by Carlos O'Donnell. Make sense to me integrate this on the patch: https://sourceware.org/ml/libc-alpha/2017-05/msg00335.html * elf/dl-tunables.list: Add elision parameters. * manual/tunables.texi: Add entries about elision tunable. * sysdeps/unix/sysv/linux/powerpc/elision-conf.c: Add callback functions to dynamically enable/disable elision. Add multiple callbacks functions to set elision parameters. Deleted __libc_enable_secure check. * sysdeps/unix/sysv/linux/s390/elision-conf.c: Likewise. * sysdeps/unix/sysv/linux/x86/elision-conf.c: Likewise. * configure: Regenerated. * configure.ac: Option enable_lock_elision was deleted. * config.h.in: ENABLE_LOCK_ELISION flag was deleted. * config.make.in: Remove references to enable_lock_elision. * manual/install.texi: Elision configure option was removed. * INSTALL: Regenerated to remove enable_lock_elision. * nptl/Makefile: Disable elision so it can verify error case for destroying a mutex. * sysdeps/powerpc/nptl/elide.h: Cleanup ENABLE_LOCK_ELISION check. Deleted macros for the case when ENABLE_LOCK_ELISION was not defined. * sysdeps/s390/configure: Regenerated. * sysdeps/s390/configure.ac: Remove references to enable_lock_elision.. * nptl/tst-mutex8.c: Deleted all #ifndef ENABLE_LOCK_ELISION from the test. * sysdeps/powerpc/powerpc32/sysdep.h: Deleted all ENABLE_LOCK_ELISION checks. * sysdeps/powerpc/powerpc64/sysdep.h: Likewise. * sysdeps/powerpc/sysdep.h: Likewise. * sysdeps/s390/nptl/bits/pthreadtypes-arch.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/force-elision.h: Likewise. * sysdeps/unix/sysv/linux/s390/elision-conf.h: Likewise. * sysdeps/unix/sysv/linux/s390/force-elision.h: Likewise. * sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/s390/Makefile: Remove references to enable-lock-elision. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* PowerPC64 ENTRY_TOCLESSAlan Modra2017-06-141-24/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A number of functions in the sysdeps/powerpc/powerpc64/ tree don't use or change r2, yet declare a global entry that sets up r2. This patch fixes that problem, and consolidates the ENTRY and EALIGN macros. * sysdeps/powerpc/powerpc64/sysdep.h: Formatting. (NOPS, ENTRY_3): New macros. (ENTRY): Rewrite. (ENTRY_TOCLESS): Define. (EALIGN, EALIGN_W_0, EALIGN_W_1, EALIGN_W_2, EALIGN_W_4, EALIGN_W_5, EALIGN_W_6, EALIGN_W_7, EALIGN_W_8): Delete. * sysdeps/powerpc/powerpc64/a2/memcpy.S: Replace EALIGN with ENTRY. * sysdeps/powerpc/powerpc64/dl-trampoline.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Likewise. * sysdeps/powerpc/powerpc64/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power7/fpu/s_finite.S: Likewise. * sysdeps/powerpc/powerpc64/power7/fpu/s_isinf.S: Likewise. * sysdeps/powerpc/powerpc64/power7/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strstr.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/e_expf.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_cosf.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_sinf.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strcasestr.S: Likewise. * sysdeps/powerpc/powerpc64/addmul_1.S: Use ENTRY_TOCLESS. * sysdeps/powerpc/powerpc64/cell/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_copysignl.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_fabsl.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llrintf.S: Likewise. * sysdeps/powerpc/powerpc64/lshift.S: Likewise. * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/mul_1.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power4/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: Likewise. * sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Likewise. * sysdeps/powerpc/powerpc64/power6/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Likewise. * sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Likewise. * sysdeps/powerpc/powerpc64/power7/add_n.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strcasecmp.S (strcasecmp_l): Likewise. * sysdeps/powerpc/powerpc64/power7/strchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strchrnul.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strlen.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strncpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strnlen.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_finite.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_isinf.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Likewise. * sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Likewise. * sysdeps/powerpc/powerpc64/power8/memcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power8/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strchr.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strlen.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strncpy.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strnlen.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strspn.S: Likewise. * sysdeps/powerpc/powerpc64/power9/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power9/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/strchr.S: Likewise. * sysdeps/powerpc/powerpc64/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/strlen.S: Likewise. * sysdeps/powerpc/powerpc64/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/ppc-mcount.S: Store LR earlier. Don't add nop when SHARED. * sysdeps/powerpc/powerpc64/start.S: Fix comment. * sysdeps/powerpc/powerpc64/multiarch/strrchr-power8.S (ENTRY): Don't define. (ENTRY_TOCLESS): Define. * sysdeps/powerpc/powerpc32/sysdep.h (ENTRY_TOCLESS): Define. * sysdeps/powerpc/fpu/s_fma.S: Use ENTRY_TOCLESS. * sysdeps/powerpc/fpu/s_fmaf.S: Likewise.
* PowerPC64 sysdep.h tidyAlan Modra2017-06-141-57/+57
| | | | | | | | | | | | | | | | | | | | | | .align on some targets takes a byte alignment, on others like powerpc, log2 of the byte alignment. It's a good idea to avoid .align, particularly since x86 and powerpc are different. This patch fixes the occurrences of .align in powerpc64/sysdep.h, renames DOT_LABEL since the macro doesn't have anything to do with adding dots, removes extraneous semicolons, and fixes some formatting. * sysdeps/powerpc/powerpc64/sysdep.h: Formatting. (FUNC_LABEL): Rename from DOT_LABEL. (ENTRY_1): Use FUNC_LABEL and remove leading space from label. Use .p2align rather than .align. (TRACEBACK, TRACEBACK_MASK): Use .p2align rather than .align. (ABORT_TRANSACTION): Likewise. (ENTRY_1, ENTRY_2, END_2, LOCALENTRY): Remove unnecessary semicolons, particularly at end. Add semicolon at invocation as necessary. (TRACEBACK, TRACEBACK_MASK, PSEUDO, PSEUDO_NOERRNO): Likewise. (PSEUDO_ERRVAL, PPC64_LOAD_FUNCPTR, OPD_ENT): Likewise. * sysdeps/powerpc/powerpc64/multiarch/strrchr-power8.S (ENTRY, END): Adjust to suit.
* PowerPC64 FRAME_PARM_SAVEAlan Modra2017-06-141-24/+3
| | | | | | | | | | | | | I think FRAME_PARM[1-9]_SAVE confuse the code, particularly FRAME_PARM9_SAVE. There are only 8 parameter save slots! * sysdeps/powerpc/powerpc64/sysdep.h: (FRAME_BACKCHAIN, FRAME_CR_SAVE, FRAME_LR_SAVE): Move out of conditional. (FRAME_PARM1_SAVE, FRAME_PARM2_SAVE, FRAME_PARM3_SAVE, FRAME_PARM4_SAVE, FRAME_PARM5_SAVE, FRAME_PARM6_SAVE, FRAME_PARM7_SAVE, FRAME_PARM8_SAVE, FRAME_PARM9_SAVE): Delete. * sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S: Replace uses of FRAME_PARM[1-9]_SAVE with FRAME_PARM_SAVE plus offset.
* PowerPC64, fix calls to _mcountAlan Modra2017-06-141-8/+3
| | | | | | | The macros used in assembly were broken on powerpc64 ELFv1. * sysdeps/powerpc/powerpc64/sysdep.h: (call_mcount_parm_offset): Delete. (SAVE_ARG, REST_ARG, CFI_SAVE_ARG): Correct.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
|
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
|
* powerpc: Fix tabort usage in syscallsPaul E. Murphy2015-08-251-2/+2
| | | | | | | | | | | | | | | | | | | Fix usage of tabort in generated syscalls. r0 has special meaning when used with this instruction, thus it will not generate persistent errors, nor return an error code. This mitigates poor CPU usage when performing elided critical sections. Additionally, transactions should be aborted when entering a user invoked syscall. Otherwise the results of the transaction may be undefined. 2015-08-25 Paul E. Murphy <murphyp@linux.vnet.ibm.com> * sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION): Use register other than r0 for tabort, it has special meaning. * sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION): Likewise * sysdeps/unix.sysv/linux/powerpc/syscall.S (syscall): Abort transaction before starting syscall.
* powerpc: Remove HAVE_ASM_GLOBAL_DOT_NAME defineAdhemerval Zanella2015-03-111-30/+8
| | | | | | | | | With AIX port deprecated there is no need to check/define HAVE_ASM_GLOBAL_DOT_NAME anymore since the current minimum binutils supported (2.22) does not emit global symbol with dot. This patch removes all the HAVE_ASM_GLOBAL_DOT_NAME definition and checks for powerpc64 port.
* powerpc: abort transaction in syscallsAdhemerval Zanella2015-01-121-0/+16
| | | | | | | | | | | Linux kernel powerpc documentation states issuing a syscall inside a transaction is not recommended and may lead to undefined behavior. It also states syscalls does not abort transactoin neither they run in transactional state. To avoid side-effects being visible outside transactions, GLIBC with lock elision enabled will issue a transaction abort instruction just before all syscalls if hardware supports hardware transactions.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
|
* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
|
* PowerPC64 ELFv2 ABI 4/6: Stack frame layout changesUlrich Weigand2013-12-041-17/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates glibc for the changes in the ELFv2 relating to the stack frame layout. These are described in more detail here: http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01149.html http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01146.html Specifically, the "compiler and linker doublewords" were removed, which has the effect that the save slot for the TOC register is now at offset 24 rather than 40 to the stack pointer. In addition, a function may now no longer necessarily assume that its caller has set up a 64-byte register save area its use. To address the first change, the patch goes through all assembler files and replaces immediate offsets in instructions accessing the ABI-defined stack slots by symbolic offsets. Those already were defined in ucontext_i.sym and used in some of the context routines, but that doesn't really seem like the right place for those defines. The patch instead defines those symbolic offsets in sysdeps.h, in two variants for the old and new ABI, and uses them systematically in all assembler files, not just the context routines. The second change only affected a few assembler files that used the save area to temporarily store some registers. In those cases where this happens within a leaf function, this patch changes the code to store those registers to the "red zone" below the stack pointer. Otherwise, the functions already allocate a stack frame, and the patch changes them to add extra space in these frames as temporary space for the ELFv2 ABI.
* PowerPC64 ELFv2 ABI 2/6: Remove function descriptorsUlrich Weigand2013-12-041-2/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the ELFv2 ABI feature to remove function descriptors. See this GCC patch for in-depth discussion: http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01141.html This mostly involves two types of changes: updating assembler source files to the new logic, and updating the dynamic loader. After the refactoring in the previous patch, most of the assembler source changes can be handled simply by providing ELFv2 versions of the macros in sysdep.h. One somewhat non-obvious change is in __GI__setjmp: this used to "fall through" to the immediately following __setjmp ENTRY point. This is no longer safe in the ELFv2 since ENTRY defines both a global and a local entry point, and you cannot simply fall through to a global entry point as it requires r12 to be set up. Also, makecontext needs to be updated to set up registers according to the new ABI for calling into the context's start routine. The dynamic linker changes mostly consist of removing special code to handle function descriptors. We also need to support the new PLT and glink format used by the the ELFv2 linker, see: https://sourceware.org/ml/binutils/2013-10/msg00376.html In addition, the dynamic linker now verifies that the dynamic libraries it loads match its own ABI. The hack in VDSO_IFUNC_RET to "synthesize" a function descriptor for vDSO routines is also no longer necessary for ELFv2.
* PowerPC64 ELFv2 ABI 1/6: Code refactoringUlrich Weigand2013-12-041-2/+29
| | | | | | | | | | | | | | This is the first patch to support the new ELFv2 ABI in glibc. As preparation, this patch simply refactors some of the powerpc64 assembler code to move all code related to creating function descriptors (.opd section) or using function descriptors (function pointer call) into a central place in sysdep.h. Note that most locations creating .opd entries were already using macros in sysdep.h, this patch simply extends this to the remaining places. No relevant change in generated code expected.
* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
|
* Replace FSF snail mail address with URLs.Paul Eggert2012-02-091-3/+2
|
* Remove __ELF__ conditionalsMarek Polacek2012-02-071-5/+1
|
* PowerPC64 ABI fixesAlan Modra2010-08-121-4/+55
|
* * sysdeps/powerpc/powerpc32/sysdep.h (ENTRY, EALIGN): Add cfi_startprocUlrich Drepper2006-01-041-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | directive to ENTRY macros. (END): Add cfi_endproc directive to END macro. * sysdeps/powerpc/powerpc64/sysdep.h (ENTRY, EALIGN): Add cfi_startproc directive to ENTRY macros. (END, END_GEN_TB): Add cfi_endproc directive to END macros. * sysdeps/powerpc/powerpc32/dl-start.S: Remove ENTRY()s for _dl_start_user and _dl_main_dispatch. * sysdeps/powerpc/powerpc32/fpu/fprrest.S: Use END macro. * sysdeps/powerpc/powerpc32/fpu/fprsave.S: Use Likewise. * sysdeps/powerpc/powerpc32/gprrest0.S: Likewise. * sysdeps/powerpc/powerpc32/gprrest1.S: Likewise. * sysdeps/powerpc/powerpc32/gprsave0.S: Likewise. * sysdeps/powerpc/powerpc32/gprsave1.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S: Remove redundant cfi_startproc and cfi_endproc. * sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S: Likewise. 2006-01-04 Ulrich Drepper <drepper@redhat.com> * sysdeps/pthread/aio_misc.h (struct waitlist): Add result member. * sysdeps/pthread/aio_notify.c (__aio_notify): For synchronous waiters, failed I/O, and a result pointer, set value to -1. * sysdeps/pthread/aio_suspend.c: Initialize result pointer to NULL. * sysdeps/pthread/lio_listio.c: For LIO_WAIT, point result pointer in wait list to local variable result. If nonzero afterwards, set errno to EIO. For LIO_NOWAIT set result to NULL. * rt/Makefile (tests): Add tst-aio8. * rt/tst-aio8.c: New file.
* (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper2004-12-221-9/+5
|
* 2.5-18.1Jakub Jelinek2007-07-121-5/+9
|
* Update.Ulrich Drepper2004-10-061-41/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2004-10-06 Alan Modra <amodra@bigpond.net.au> * gmon/Makefile (CFLAGS-mcount.c): Move before inclusion of "Rules". * sysdeps/powerpc/powerpc64/Makefile (CFLAGS-mcount.c): Add -msoft-float. * sysdeps/powerpc/powerpc64/sysdep.h (SAVE_ARG, REST_ARG): New macros. (CALL_MCOUNT): Replace with a gas macro implementation. (EALIGN): Delete PROF version. * sysdeps/powerpc/powerpc64/__longjmp-common.S: Invoke CALL_MCOUNT. * sysdeps/powerpc/powerpc64/bsd-_setjmp.S: Likewise. * sysdeps/powerpc/powerpc64/bsd-setjmp.S: Likewise. * sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise. * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/memset.S: Likewise. * sysdeps/powerpc/powerpc64/stpcpy.S: Likewise. * sysdeps/powerpc/powerpc64/strchr.S: Likewise. * sysdeps/powerpc/powerpc64/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/strcpy.S: Likewise. * sysdeps/powerpc/powerpc64/strlen.S: Likewise. * sysdeps/powerpc/powerpc64/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llrintf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llround.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Likewise. * sysdeps/powerpc/powerpc64/setjmp-common.S: Add extra entry point past _mcount call. * sysdeps/powerpc/powerpc64/bsd-_setjmp.S: Use it. * sysdeps/powerpc/powerpc64/bsd-setjmp.S: Likewise.
* Update.Ulrich Drepper2004-09-081-89/+112
| | | | | | | | | | | | | | | | 2004-09-07 Jakub Jelinek <jakub@redhat.com> * sysdeps/powerpc/powerpc64/configure.in: New file. * config.h.in (USE_PPC64_OVERLAPPING_OPD): Add. * configure.in (HAVE_ASM_GLOBAL_DOT_NAME): Remove. * sysdeps/powerpc/powerpc64/sysdep.h: Formatting. (OPD_ENT, BODY_LABEL, ENTRY_1, ENTRY_2, END_2, DOT_PREFIX, BODY_PREFIX): Define. (ENTRY, DOT_LABEL, END, TRACEBACK, END_GEN_TB, EALIGN): Support HAVE_ASM_GLOBAL_DOT_NAME or no dot symbols, USE_PPC64_OVERLAPPING_OPD or never overlapping .opd entries. * sysdeps/powerpc/powerpc64/dl-machine.h: Include sysdep.h. (TRAMPOLINE_TEMPLATE, RTLD_START): Use the new sysdep.h macros.
* Update.Ulrich Drepper2004-05-201-29/+10
| | | | | | | | | | | | | | | | | | | | | | | | 2004-05-19 Paul Eggert <eggert@cs.ucla.edu> * malloc/obstack.h (_obstack_free, obstack_1grow, obstack_1grow_fast, obstack_alignment_mask, obstack_alloc, obstack_base, obstack_blank, obstack_blank_fast, obstack_chunk_size, obstack_copy, obstack_copy0, obstack_finish, obstack_grow, obstack_grow0, obstack_init, obstack_int_grow, obstack_int_grow_fast, obstack_make_room, obstack_memory_used, obstack_next_free, obstack_object_size, obstack_ptr_grow, obstack_ptr_grow_fast, obstack_room): Remove declarations of nonexistent functions. 2004-05-18 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/sysdep.h [__ASSEMBLER__]: Include <sysdeps/powerpc/sysdep.h> independent of __ASSEMBLER__. [PIC]: Redundent for powerpc64, removed. (ENTRY): Generate size and alignment for opd entry. (EALIGN): Generate size and alignment for opd entry. (END): Use DOT_LABEL in ASM_SIZE_DIRECTIVE. (END_GEN_TB): Use DOT_LABEL in ASM_SIZE_DIRECTIVE.
* Update.Ulrich Drepper2003-08-171-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2003-08-16 Jakub Jelinek <jakub@redhat.com> * sysdeps/powerpc/powerpc32/sysdep.h (PSEUDO_ERRVAL, PSEUDO_RET_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define. * sysdeps/powerpc/powerpc64/sysdep.h (PSEUDO_ERRVAL, PSEUDO_RET_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define. * sysdeps/unix/alpha/sysdep.h (PSEUDO_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define. * sysdeps/unix/mips/sysdep.h (PSEUDO_ERRVAL, ret_ERRVAL, PSEUDO_END_ERRVAL): Define. * sysdeps/unix/sparc/sysdep.h (PSEUDO_ERRVAL, ret_ERRVAL): Define. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (PSEUDO_ERRVAL, PSEUDO_END_ERRVAL, ret_ERRVAL): Define. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (PSEUDO_ERRVAL, PSEUDO_END_ERRVAL, ret_ERRVAL): Define. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (PSEUDO_ERRVAL): Define. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h (PSEUDO_ERRVAL, PSEUDO_END_ERRVAL, ret_ERRVAL): Define. * sysdeps/unix/sysdep.h (PSEUDO_END_ERRVAL): Define. * sysdeps/unix/sysv/linux/syscalls.list (posix_fadvise64, posix_fadvise64_64): Remove. * sysdeps/unix/sysv/linux/alpha/syscalls.list (posix_fadvise64): Add V flag. * sysdeps/unix/sysv/linux/ia64/syscalls.list (posix_fadvise64): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list (posix_fadvise64): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (posix_fadvise64): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (posix_fadvise64): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (posix_fadvise64): Likewise. * sysdeps/unix/sysv/linux/i386/posix_fadvise64_64.S: Moved to... * sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: ...here. (__posix_fadvise64_l64): Fix a typo in fadvise64 syscall invocation. (__posix_fadvise64_l32): New function. * sysdeps/unix/sysv/linux/i386/Makefile: Revert last change. * sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions (libc): Export posix_fadvise64@@GLIBC_2.3.3. * sysdeps/unix/sysv/linux/s390/s390-32/Versions (libc): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/Versions (libc): Likewise. * sysdeps/unix/sysv/linux/posix_fadvise.c (posix_fadvise): Return error value. * sysdeps/unix/sysv/linux/posix_fadvise64.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (SYSCALL_ERROR_HANDLER): Use TLS errno/__libc_errno if USE___THREAD. 2003-08-15 Jakub Jelinek <jakub@redhat.com> * sysdeps/sparc/sparc32/dl-machine.h (WEAKADDR): Remove. (elf_machine_matches_host): Remove weak extern stuff. Use GL(dl_hwcap) unconditionally and GL(dl_hwcap_mask) if SHARED. (elf_machine_runtime_setup, sparc_fixup_plt): Remove weak extern stuff. Use GL(dl_hwcap) unconditionally.
* Update.Ulrich Drepper2003-06-121-4/+14
| | | | | | | | * sysdeps/posix/getaddrinfo.c (gaih_inet): Set no_inet6_date alse if only PF_INET address is needed. * nss/getXXbyYY_r.c: Make sure we always return a nonzero value in case of an error.
* Update.Ulrich Drepper2003-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | 2003-03-24 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/arm/sysdep.h (INTERNAL_SYSCALL): Remove a1 from clobber list. 2003-03-24 Ulrich Drepper <drepper@redhat.com> * timezone/antarctica: Update from tzdata2003a. * timezone/asia: Likewise. * timezone/australasia: Likewise. * timezone/europe: Likewise. * timezone/iso3166.tab: Likewise. * timezone/northamerica: Likewise. * timezone/southamerica: Likewise. * timezone/zone.tab: Likewise. 2003-03-24 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/sysdep.h (PSEUDO_END_NOERRNO): Fix typo.
* Update.Ulrich Drepper2003-03-231-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 2003-03-23 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/make-syscalls.sh: Recognize 'E' in first position of the parameter description to denote no error checking. Generate appropriate pseudo asm code. * sysdeps/unix/syscalls.list: Mark getgid, getpid, getuid with 'E'. * sysdeps/unix/sysv/linux/syscalls.list: Mark getegid, geteuid, getpgrp, and getppid with 'E'. * sysdeps/powerpc/powerpc32/sysdep.h: Define PSEUDO_NOERRNO, PSEUDO_END_NOERRNO, and ret_NOERRNO. * sysdeps/powerpc/powerpc64/sysdep.h: Likewise. * sysdeps/unix/sysdep.h: Likewise. * sysdeps/unix/alpha/sysdep.h: Likewise. * sysdeps/unix/sparc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/cris/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* Update.Ulrich Drepper2003-01-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2003-01-11 Jim Meyering <jim@meyering.net> * io/ftw.c [HAVE_CONFIG_H]: Include <config.h>. [HAVE_SYS_PARAM_H || _LIBC]: Guard inclusion of <sys/param.h>. Include <sys/stat.h>, not <include/sys/stat.h>, if !_LIBC. [!_LIBC] (__chdir, __closedir, __fchdir, __getcwd, __opendir): Define. [!_LIBC] (__readdir64, __tdestroy, __tfind, __tsearch): Define. [!_LIBC] (internal_function, dirent64, MAX): Define. (__set_errno): Define if not already defined. (open_dir_stream): When FTW_CHDIR is enabled, invoke opendir on the basename, not the entire file name. (process_entry): When FTW_CHDIR is enabled, invoke XSTAT or LXSTAT on the basename, not the entire file name. 2003-01-12 Ulrich Drepper <drepper@redhat.com> * string/tester.c (test_strcpy): Disable last added strcpy until it is fixed. 2003-01-11 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/arm/socket.S: Add cancellation support. 2003-01-11 Andreas Schwab <schwab@suse.de> * Makerules: Add vpath for %.dynsym and %.so so that the implicit rule chaining for check-abi works. 2003-01-11 Kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/unix/sysv/linux/sh/sysdep.h (SYSCALL_ERROR_HANDLER): Add non-PIC case. 2003-01-11 Jakub Jelinek <jakub@redhat.com> * elf/tls-macros.h [__ia64__] (__TLS_CALL_CLOBBERS): Define. [__ia64__] (TLS_LE, TLS_IE): Fix typos. Add ;; at start of asm if gp is used early. [__ia64__] (TLS_LD, TLS_GD): Likewise. Use __TLS_CALL_CLOBBERS. * elf/Makefile ($(objpfx)tst-tlsmod5.so, $(objpfx)tst-tlsmod6.so): Ensure libc.so in DT_NEEDED. * sysdeps/alpha/dl-machine.h (elf_machine_rela): Move CHECK_STATIC_TLS before l_tls_offset use. * sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela): Likewise. * sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/generic/dl-tls.c (_dl_allocate_tls_storage) [TLS_DTV_AT_TP]: Allocate TLS_PRE_TCB_SIZE bytes below result. (_dl_deallocate_tls) [TLS_DTV_AT_TP]: Adjust before freeing. * sysdeps/generic/libc-tls.c (__libc_setup_tls): If TLS_INIT_TP_EXPENSIVE is not defined, allocate even if no PT_TLS segment has been found. If TLS_DTV_AT_TP, allocate TLS_PRE_TCB_SIZE bytes below result and add tcb_offset to memsz. * sysdeps/ia64/dl-tls.h (__tls_get_addr): New prototype. * sysdeps/ia64/dl-machine.h: Include tls.h. (elf_machine_type_class): Return ELF_RTYPE_CLASS_PLT for TLS relocs too. (elf_machine_rela): Assume if sym_map != NULL sym is non-NULL too. Handle R_IA64_DTPMOD*, R_IA64_DTPREL* and R_IA64_TPREL* relocations. * sysdeps/ia64/libc-tls.c: New file. 2003-01-10 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/sysdep.h (PSEUDO_RET): Add branch hit. * sysdeps/unix/sysv/linux/powerpc/bits/stat.h (STAT_VER_LINUX): Fix type. Move definition out of #if. * sysdeps/unix/sysv/linux/powerpc/powerpc64/ftruncate64.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S: Add cancellation support. * sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Remove ftruncate64, pread64, pwrite64, truncate64 entries. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h (INLINE_SYSCALL): New version that supports function call like syscalls. Add __builtin_expect. (LOADARGS_n): Add argument size safety checks. (INTERNAL_SYSCALL): New Macro. * sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c: New file. * sysdeps/unix/sysv/linux/powerpc/sys/procfs.h [__PPC_ELF_H]: Avoid redefinition of elf_fpreg_t and elf_fpregset_t. 2003-01-12 Ulrich Drepper <drepper@redhat.com> * elf/dl-close.c (_dl_close): Add several asserts. Correct and simplify test for unloading. If loader of a DSO is unloaded do not use its scope anymore. Fall back to own scope and adjust opencounts. Fix several comments. * elf/dl-deps.c (_dl_map_object_deps): Always allocate memory for the l_searchlist, not only for l_initfini. * elf/dl-lookup.c (add_dependencies): Avoid creating relocation dependencies if objects cannot be removed. Remove object with the definition as not unloadable if necessary. * elf/reldep6.c: Create relocation dependency before closing the first module. 2003-01-10 Guido Günther <agx@sigxcpu.org> * elf/Makefile: Add rules to build and run reldep9 test. * elf/reldep9.c: New file. * elf/reldep9mod1.c: New file. * elf/reldep9mod2.c: New file. * elf/reldep9mod3.c: New file. 2003-01-09 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run nodelete2 test. * elf/nodelete2.c: New file. * elf/nodel2mod1.c: New file. * elf/nodel2mod2.c: New file. * elf/nodel2mod3.c: New file. 2003-01-09 Jakub Jelinek <jakub@redhat.com>
* Update.Ulrich Drepper2003-01-091-1/+2
| | | | | | | | | | | | | | 2003-01-09 Jakub Jelinek <jakub@redhat.com> * posix/test-vfork.c (noop): Add __attribute_noinline__. * sysdeps/generic/sysdep.h (JUMPTARGET): Define if not defined. * sysdeps/i386/sysdep.h (JUMPTARGET): Undefine JUMPTARGET before defining it. * sysdeps/powerpc/powerpc32/sysdep.h (JUMPTARGET): Likewise. * sysdeps/powerpc/powerpc64/sysdep.h (JUMPTARGET): Likewise. * sysdeps/s390/s390-32/sysdep.h (JUMPTARGET): Likewise. * sysdeps/s390/s390-64/sysdep.h (JUMPTARGET): Likewise. * sysdeps/x86_64/sysdep.h (JUMPTARGET): Likewise.
* * sysdeps/powerpc/sysdep.h: Remove powerpc32 specific macros.Roland McGrath2002-09-201-0/+233
* sysdeps/powerpc/powerpc32/sysdep.h: New file. Define powerpc32 specific macros copied from sysdeps/powerpc/sysdep.h. * sysdeps/powerpc/powerpc64/sysdep.h: New file. Define powerpc64 specific macros. * sysdeps/unix/powerpc/sysdep.h: Include <bits/wordsize.h>. [__WORDSIZE==64]: Include sysdeps/powerpc/powerpc64/sysdep.h. [!__WORDSIZE==64]: Include sysdeps/powerpc/powerpc32/sysdep.h.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-26 07:55:36 +0000