Update.
1998-06-16 David S. Miller <davem@dm.cobaltmicro.com> * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): During rtld bootstrap, always perform flushes as the kernel will emulate it when the underlying cpu does not implement flush. * sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h: Move... * sysdeps/unix/sysv/linux/sparc/kernel_termios.h: ...to here. * sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S: Remove. * sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: No longer build trampoline code. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Branch to label .Lerror not __clone_syscall_error. (.Lerror): Fixup EINVAL setting. * sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list (__syscall_getgroups, __syscall_setgroups): Add. * sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (__sigaction): Member name is k_sa_handler. Use memcpy to copy around sa_mask data. * math/math.h: Include bits/nan.h when compiling for ISO C 9x.
This commit is contained in:
Ulrich Drepper
parent
b301e2eb98
commit
bf47fa2344
28
ChangeLog
28
ChangeLog
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@ -1,5 +1,33 @@
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1998-06-16 David S. Miller <davem@dm.cobaltmicro.com>
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* sysdeps/sparc/sparc32/dl-machine.h
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(elf_machine_fixup_plt): During rtld bootstrap, always perform
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flushes as the kernel will emulate it when the underlying cpu does
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not implement flush.
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* sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h: Move...
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* sysdeps/unix/sysv/linux/sparc/kernel_termios.h: ...to here.
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* sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S: Remove.
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* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: No longer build
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trampoline code.
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* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
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(__clone): Branch to label .Lerror not __clone_syscall_error.
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(.Lerror): Fixup EINVAL setting.
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* sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c: New file.
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* sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c: New file.
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* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
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(__syscall_getgroups, __syscall_setgroups): Add.
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* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
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(__sigaction): Member name is k_sa_handler. Use memcpy to copy
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around sa_mask data.
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1998-06-16 Ulrich Drepper <drepper@cygnus.com>
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* math/math.h: Include bits/nan.h when compiling for ISO C 9x.
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* string/Makefile: Make sure test-ffs does not use builtins.
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1998-06-16 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
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13
FAQ.in
13
FAQ.in
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@ -657,6 +657,19 @@ option is using NSS. There is no switch anymore. Therefore it is
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*highly* recommended *not* to use --enable-static-nss since this makes
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the behaviour of the programs on the system inconsistent.
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?? I just upgraded my Linux system to glibc and now I get
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errors whenever I try to link any program.
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{ZW} This happens when you have installed glibc as the primary C library but
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have stray symbolic links pointing at your old C library. If the first
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`libc.so' the linker finds is libc 5, it will use that. Your program
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expects to be linked with glibc, so the link fails.
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The most common case is that glibc put its `libc.so' in /usr/lib, but there
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was a `libc.so' from libc 5 in /lib, which gets searched first. To fix the
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problem, just delete /lib/libc.so. You may also need to delete other
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symbolic links in /lib, such as /lib/libm.so if it points to libm.so.5.
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? Source and binary incompatibilities, and what to do about them
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?? I expect GNU libc to be 100% source code compatible with
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@ -33,7 +33,7 @@ __BEGIN_DECLS
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#include <bits/huge_val.h>
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/* Get machine-dependent NAN value (returned for some domain errors). */
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#ifdef __USE_GNU
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#ifdef __USE_ISOC9X
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# include <bits/nan.h>
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#endif
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@ -271,7 +271,9 @@ elf_machine_fixup_plt (struct link_map *map, const Elf32_Rela *reloc,
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unsigned long *hwcap = WEAKADDR(_dl_hwcap);
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int do_flush = (!hwcap || (*hwcap & HWCAP_SPARC_FLUSH));
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#else
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int do_flush = 0;
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/* Unfortunately, this is necessary, so that we can ensure
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ld.so will not execute corrupt PLT entry instructions. */
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const int do_flush = 1;
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#endif
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/* For thread safety, write the instructions from the bottom and
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@ -0,0 +1,38 @@
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/* Copyright (C) 1997, 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 _KERNEL_TERMIOS_H
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#define _KERNEL_TERMIOS_H 1
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/* The following corresponds to the values from the Linux 2.1.20 kernel. */
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/* We need the definition of tcflag_t, cc_t, and speed_t. */
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#include <termios.h>
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#define __KERNEL_NCCS 17
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struct __kernel_termios
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{
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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cc_t c_line; /* line discipline */
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cc_t c_cc[__KERNEL_NCCS]; /* control characters */
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};
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#endif /* kernel_termios.h */
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@ -1,7 +1,3 @@
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ifeq ($(subdir),signal)
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sysdep_routines += __sigtrampoline
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endif
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asm-CPPFLAGS=-D__ASSEMBLY__
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ASFLAGS-.os=-fPIC
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@ -1,140 +0,0 @@
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/* Userland trampoline code for sigaction on Linux/SPARC */
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/* (C) 1996, 1997 Free Software Foundation, Inc. */
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/* This file is part of the GNU C Library. */
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/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu) */
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/* Many thanks go to David Miller for explaining all this to me */
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/* miguel@nuclecu.unam.mx */
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/* Sources: David Miller, 4.4BSD/SPARC code */
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#include <sysdep.h>
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#define __ASSEMBLY__
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/* For REGWIN_SZ */
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#include <asm/ptrace.h>
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#include <asm/psr.h>
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/* The C compiler frame size */
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#define CCFSZ 96
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.text
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ENTRY(____sparc_signal_trampoline)
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.global C_SYMBOL_NAME(____sig_table)
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/* Make room for 32 %f registers + %fsr
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* this is 132 bytes + alignement = 136
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* 96 is the C frame size
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*/
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save %sp,-136-CCFSZ,%sp
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/* save regular registers */
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mov %g2,%l2
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mov %g3,%l3
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mov %g4,%l4
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mov %g5,%l5
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mov %g6,%l6
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mov %g7,%l7
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/* save fpu registers */
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ld [%fp+64+16+20],%l0 /* load the psr from sigcontext */
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sethi %hi(PSR_EF),%l1
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andcc %l0,%l1,%l0 /* is floating point enabled? */
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be 1f
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rd %y,%l1 /* save y anyways */
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/* save fpu registers */
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st %fsr, [%sp + CCFSZ + 0]
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std %f0, [%sp + CCFSZ + 8]
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std %f2, [%sp + CCFSZ + 16]
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std %f4, [%sp + CCFSZ + 24]
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std %f6, [%sp + CCFSZ + 32]
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std %f8, [%sp + CCFSZ + 40]
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std %f10, [%sp + CCFSZ + 48]
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std %f12, [%sp + CCFSZ + 56]
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std %f14, [%sp + CCFSZ + 64]
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std %f16, [%sp + CCFSZ + 72]
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std %f18, [%sp + CCFSZ + 80]
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std %f20, [%sp + CCFSZ + 88]
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std %f22, [%sp + CCFSZ + 96]
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std %f24, [%sp + CCFSZ + 104]
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std %f26, [%sp + CCFSZ + 112]
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std %f28, [%sp + CCFSZ + 120]
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std %f30, [%sp + CCFSZ + 128]
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1:
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/* Load signal number */
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ld [%fp + REGWIN_SZ],%o0
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mov %fp,%o1
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mov 0xfea,%o2
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/* Sanity check */
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cmp %o0,33
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bl 1f
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or %g0,%g0,%g1 /*Call sys_setup */
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t 0x10
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1:
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#ifdef PIC
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/* Save return address */
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mov %o7,%o5
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11: call 12f
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sethi %hi(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
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12: or %o5,%lo(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
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add %o7,%o4,%o4
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/* restore return address */
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mov %o5,%o7
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/* o4 has the GOT pointer */
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#endif
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sethi %hi(C_SYMBOL_NAME(____sig_table)),%o5
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or %o5,%lo(C_SYMBOL_NAME(____sig_table)),%o5
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#ifdef PIC
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ld [%o4+%o5], %o5
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#endif
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sll %o0,2,%o4
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add %o5,%o4,%o4
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ld [%o4],%o4
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ld [%fp + REGWIN_SZ + 4],%o1 /* Load subcode */
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ld [%fp + REGWIN_SZ + 8],%o2 /* pointer to sigcontext */
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call %o4
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ld [%fp + REGWIN_SZ + 12],%o3 /* Address where signal ocurre
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*/
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/* handler returned, restore state */
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tst %l0
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be 1f
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wr %l1,%g0,%y
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/* fpu restoration */
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ld [%sp + CCFSZ + 0], %fsr
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ldd [%sp + CCFSZ + 8], %f0
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ldd [%sp + CCFSZ + 16], %f2
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ldd [%sp + CCFSZ + 24], %f4
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ldd [%sp + CCFSZ + 32], %f6
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ldd [%sp + CCFSZ + 40], %f8
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ldd [%sp + CCFSZ + 48], %f10
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ldd [%sp + CCFSZ + 56], %f12
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ldd [%sp + CCFSZ + 64], %f14
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ldd [%sp + CCFSZ + 72], %f16
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ldd [%sp + CCFSZ + 80], %f18
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ldd [%sp + CCFSZ + 88], %f20
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ldd [%sp + CCFSZ + 96], %f22
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ldd [%sp + CCFSZ + 104], %f24
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ldd [%sp + CCFSZ + 112], %f26
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ldd [%sp + CCFSZ + 120], %f28
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ldd [%sp + CCFSZ + 128], %f30
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1:
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mov %l2,%g2
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mov %l3,%g3
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mov %l4,%g4
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mov %l5,%g5
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mov %l6,%g6
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mov %l7,%g7
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/* call sigreturn */
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restore %g0,SYS_ify(sigreturn),%g1 /* register back and set syscal */
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add %sp,64+16,%o0
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t 0x10
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/* if we return, sysreturn failed */
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mov SYS_ify(exit),%g1
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t 0x10
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END(____sparc_signal_trampoline)
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@ -44,7 +44,7 @@ __clone:
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mov %i2,%o0
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set __NR_clone,%g1
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ta 0x10
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bcs __clone_syscall_error
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bcs .Lerror
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tst %o1
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bne __thread_start
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nop
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@ -54,7 +54,7 @@ __clone:
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.Lerror:
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call __errno_location
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set EINVAL,%i0
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or %g0,EINVAL,%i0
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st %i0,[%o0]
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mov -1,%i0
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ret
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@ -0,0 +1,2 @@
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/* We also have to rewrite the kernel gid_t to the user land type. */
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#include <sysdeps/unix/sysv/linux/i386/getgroups.c>
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@ -0,0 +1,2 @@
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/* We also have to rewrite the kernel gid_t to the user land type. */
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#include <sysdeps/unix/sysv/linux/i386/setgroups.c>
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@ -34,14 +34,14 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
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struct kernel_sigaction k_sigact, k_osigact;
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/* Magic to tell the kernel we are using "new-style" signals, in that
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the signal table is not kept in userspace. Not the same as the
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the signal table is not kept in userspace. Not the same as the
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really-new-style rt signals. */
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sig = -sig;
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if (act)
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{
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k_sigact.sa_handler = act->sa_handler;
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k_sigact.sa_mask = act->sa_mask.__val[0];
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k_sigact.k_sa_handler = act->sa_handler;
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memcpy (&k_sigact.sa_mask, &act->sa_mask, sizeof (sigset_t));
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k_sigact.sa_flags = act->sa_flags;
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}
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@ -70,8 +70,8 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
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{
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if (oact)
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{
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oact->sa_handler = k_osigact.sa_handler;
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oact->sa_mask.__val[0] = k_osigact.sa_mask;
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oact->sa_handler = k_osigact.k_sa_handler;
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memcpy (&oact->sa_mask, &k_osigact.sa_mask, sizeof (sigset_t));
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oact->sa_flags = k_osigact.sa_flags;
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oact->sa_restorer = NULL;
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}
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@ -1,3 +1,5 @@
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# File name Caller Syscall name # args Strong name Weak names
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s_getgroups getgroups getgroups 2 __syscall_getgroups
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s_llseek llseek _llseek 5 __sys_llseek
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s_setgroups setgroups setgroups 2 __syscall_setgroups
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@ -1,20 +0,0 @@
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#ifndef _SYS_KERNEL_TERMIOS_H
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#define _SYS_KERNEL_TERMIOS_H 1
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/* The following corresponds to the values from the Linux 2.1.20 kernel. */
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/* We need the definition of tcflag_t, cc_t, and speed_t. */
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#include <termbits.h>
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#define __KERNEL_NCCS 17
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struct __kernel_termios
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{
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
|
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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cc_t c_line; /* line discipline */
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cc_t c_cc[__KERNEL_NCCS]; /* control characters */
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};
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#endif /* sys/kernel_termios.h */
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Loading…
Reference in New Issue