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* sysdeps/alpha/dl-machine.h (TRAMPOLINE_TEMPLATE): Move declaration of the trampoline function into the macro. * sysdeps/unix/sysv/linux/alpha/clone.S: Fix ldgp for PROF. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Revert last change; kernel 2.1.82 has this fixed. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: New file. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: New file.
1998-01-26 Richard Henderson <rth@cygnus.com> * sysdeps/alpha/dl-machine.h (TRAMPOLINE_TEMPLATE): Move declaration of the trampoline function into the macro. * sysdeps/unix/sysv/linux/alpha/clone.S: Fix ldgp for PROF. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Revert last change; kernel 2.1.82 has this fixed. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: New file. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: New file.
This commit is contained in:
Richard Henderson
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11
ChangeLog
11
ChangeLog
@ -1,3 +1,14 @@
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1998-01-26 Richard Henderson <rth@cygnus.com>
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* sysdeps/alpha/dl-machine.h (TRAMPOLINE_TEMPLATE): Move declaration
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of the trampoline function into the macro.
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* sysdeps/unix/sysv/linux/alpha/clone.S: Fix ldgp for PROF.
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* sysdeps/unix/sysv/linux/alpha/syscalls.list: Revert last change;
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kernel 2.1.82 has this fixed.
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* sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: New file.
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* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: New file.
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1998-01-26 Ulrich Drepper <drepper@cygnus.com>
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* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add change to
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@ -123,7 +123,9 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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/* This code is used in dl-runtime.c to call the `fixup' function
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and then redirect to the address it returns. */
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#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name, IMB) asm ( "\
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#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name, IMB) \
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extern void tramp_name (void); \
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asm ( "\
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.globl " #tramp_name "
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.ent " #tramp_name "
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" #tramp_name ":
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@ -205,8 +207,6 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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#else
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#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
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TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup, imb); \
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extern void _dl_runtime_resolve (void); \
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extern void _dl_runtime_profile (void); \
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strong_alias (_dl_runtime_resolve, _dl_runtime_profile);
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#endif
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@ -28,14 +28,16 @@
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.text
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ENTRY(__clone)
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.frame sp,0,ra,0
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#ifdef PROF
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ldgp gp,0(pv)
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.set noat
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lda AT, _mcount
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jsr AT, (AT), _mcount
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.set at
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#endif
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.prologue 1
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#else
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.prologue 0
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#endif
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/* Sanity check arguments. */
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ldiq v0,EINVAL
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75
sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
Normal file
75
sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
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@ -0,0 +1,75 @@
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/* Copyright (C) 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Richard Henderson <rth@cygnus.com>, 1998
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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/* On Alpha we desparately want to avoid having to issue an imb. Ordinarily
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the kernel would have to issue one after setting up the signal return
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stack, but the Linux rt_sigaction syscall is prepared to accept a pointer
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to the sigreturn syscall, instead of inlining it on the stack.
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This just about halves signal delivery time. */
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.text
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ENTRY(__syscall_rt_sigaction)
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.frame sp,0,ra,0
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#ifdef PROF
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ldgp gp,0(pv)
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.set noat
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lda AT, _mcount
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jsr AT, (AT), _mcount
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.set at
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#endif
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.prologue 1
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beq a1, 0f
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ldl t0, 8(a1)
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lda a4, sigreturn-__syscall_rt_sigaction(pv)
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lda t1, rt_sigreturn-__syscall_rt_sigaction(pv)
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and t0, 0x00000040, t0 # SA_SIGINFO
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cmovne t0, t1, a4
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0: ldi v0,__NR_sigaction
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callsys
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bne a3,1f
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ret
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1: br gp,2f
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2: ldgp gp,0(gp)
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jmp __syscall_error
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END(__syscall_rt_sigaction)
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.align 5
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.ent sigreturn
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sigreturn:
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.prologue 0
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mov sp,a0
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ldi v0,__NR_sigreturn
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callsys
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.end sigreturn
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.align 4
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.ent rt_sigreturn
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rt_sigreturn:
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.prologue 0
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mov sp,a0
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ldi v0,__NR_rt_sigreturn
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callsys
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.end rt_sigreturn
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41
sysdeps/unix/sysv/linux/alpha/sys/ucontext.h
Normal file
41
sysdeps/unix/sysv/linux/alpha/sys/ucontext.h
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/* Copyright (C) 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _SYS_UCONTEXT_H
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#define _SYS_UCONTEXT_H 1
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#include <features.h>
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#include <signal.h>
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#include <bits/sigcontext.h>
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/* A machine context is exactly a sigcontext. */
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typedef struct sigcontext mcontext_t;
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/* Userlevel context. */
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typedef struct ucontext
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{
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unsigned long int uc_flags;
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struct ucontext *uc_links;
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unsigned long __uc_osf_sigmask;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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__sigset_t uc_sigmask;
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} ucontext_t;
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#endif /* sys/ucontext.h */
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@ -16,7 +16,6 @@ semget - semget 3 __semget semget
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semctl - semctl 4 __semctl semctl
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osf_sigprocmask - osf_sigprocmask 2 __osf_sigprocmask
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s_sigaction sigaction osf_sigaction 3 __syscall_sigaction
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getpeername - getpeername 3 __getpeername getpeername
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getpriority - getpriority 2 __getpriority getpriority
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