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authorWaldemar Brodkorb <wbx@openadk.org>2017-01-22 10:24:51 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2017-01-28 10:31:19 +0100
commitbddde5860ffb8a78587854cc8e3e914bd69269ca (patch)
treed37c90a9ca983fb8be614844343ba2941927f88a /libpthread/nptl/sysdeps/unix/sysv/linux/xtensa
parent30adfbeb8843c28869cc6ee33d7c556721cb241a (diff)
remove PID caching
Follow GNU C Library from c579f48edba88380635ab98cb612030e3ed8691e and remove the PID caching. These simplifies the architecture specific assembly code. The run of the test suite found no regressions, it even solves some of the test failures for x86/x86_64/sparc. Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Vineet Gupta <Vineet.Gupta1@synopsys.com> Acked-by: Matthew Fortune <Matthew.Fortune@imgtec.com> Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/xtensa')
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch3
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S3
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S59
3 files changed, 0 insertions, 65 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch
index 7014c3f04..6f1734871 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch
@@ -2,13 +2,10 @@
# Licensed under the LGPL v2.1, see the file COPYING and LICENSE.
libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
libpthread_linux_arch_CSRC = pthread_once.c
libpthread_linux_arch_SSRC =
CFLAGS-OMIT-fork.c = -DNOT_IN_libc -DIS_IN_libpthread
-ASFLAGS-clone.S = -D_LIBC_REENTRANT
-ASFLAGS-vfork.S = -D_LIBC_REENTRANT
ASFLAGS-syscall.S = -D_LIBC_REENTRANT
ASFLAGS-mmap.S = -D_LIBC_REENTRANT
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S
deleted file mode 100644
index 539b9ef38..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S
+++ /dev/null
@@ -1,3 +0,0 @@
-#define RESET_PID
-#include <tcb-offsets.h>
-#include <libc/sysdeps/linux/xtensa/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S
deleted file mode 100644
index 46eb76dd6..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Copyright (C) 2013 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <tls.h>
-
-/*
- Save the PID value, save 0x80000000 if PID was 0.
- Registers a2 and a3 are available; ar should return the PID and as threadptr
- */
-
-#define SAVE_PID(pid,tp,ar,as) \
- rur tp, threadptr; \
- movi ar, TLS_PRE_TCB_SIZE; \
- sub tp, tp, ar; \
- l32i pid, tp, PID; \
- neg ar, pid; \
- movi as, 0x80000000; \
- moveqz ar, as, ar; \
- s32i ar, tp, PID; \
-
-/*
- Restore the PID value, restore to 0 if saved value was 0x80000000
- Return value from the syscall is in a2.
- */
-#define RESTORE_PID(pid,tp,res) \
- beqz res, 1f; \
- s32i pid, tp, PID; \
-1:
-
-/*
- Special version for call12, where we don't have enough registers
- available to preserve the original PID.
- */
-#define RESTORE_PID12(ar, as, at) \
- rur as, threadptr; \
- movi ar, TLS_PRE_TCB_SIZE; \
- sub as, as, ar; \
- l32i ar, as, PID; \
- movi at, 0x80000000; \
- sub at, at, ar; \
- neg ar, ar; \
- moveqz ar, at, at; \
- s32i ar, as, PID;
-
-#include <libc/sysdeps/linux/xtensa/vfork.S>