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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 1998-06-16 16:30:14 +00:00
parent b301e2eb98
commit bf47fa2344
13 changed files with 96 additions and 173 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
ChangeLog
View File

@ -1,5 +1,33 @@
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.
1998-06-16 Ulrich Drepper <drepper@cygnus.com>
* math/math.h: Include bits/nan.h when compiling for ISO C 9x.
* string/Makefile: Make sure test-ffs does not use builtins.
1998-06-16 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>

13
FAQ.in
View File

@ -657,6 +657,19 @@ option is using NSS. There is no switch anymore. Therefore it is
*highly* recommended *not* to use --enable-static-nss since this makes
the behaviour of the programs on the system inconsistent.
?? I just upgraded my Linux system to glibc and now I get
errors whenever I try to link any program.
{ZW} This happens when you have installed glibc as the primary C library but
have stray symbolic links pointing at your old C library. If the first
`libc.so' the linker finds is libc 5, it will use that. Your program
expects to be linked with glibc, so the link fails.
The most common case is that glibc put its `libc.so' in /usr/lib, but there
was a `libc.so' from libc 5 in /lib, which gets searched first. To fix the
problem, just delete /lib/libc.so. You may also need to delete other
symbolic links in /lib, such as /lib/libm.so if it points to libm.so.5.
? Source and binary incompatibilities, and what to do about them
?? I expect GNU libc to be 100% source code compatible with

2
math/math.h
View File

@ -33,7 +33,7 @@ __BEGIN_DECLS
#include <bits/huge_val.h>
/* Get machine-dependent NAN value (returned for some domain errors). */
#ifdef __USE_GNU
#ifdef __USE_ISOC9X
# include <bits/nan.h>
#endif

4
sysdeps/sparc/sparc32/dl-machine.h
View File

@ -271,7 +271,9 @@ elf_machine_fixup_plt (struct link_map *map, const Elf32_Rela *reloc,
unsigned long *hwcap = WEAKADDR(_dl_hwcap);
int do_flush = (!hwcap || (*hwcap & HWCAP_SPARC_FLUSH));
#else
int do_flush = 0;
/* Unfortunately, this is necessary, so that we can ensure
ld.so will not execute corrupt PLT entry instructions. */
const int do_flush = 1;
#endif
/* For thread safety, write the instructions from the bottom and

38
sysdeps/unix/sysv/linux/sparc/kernel_termios.h Normal file
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@ -0,0 +1,38 @@
/* Copyright (C) 1997, 1998 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _KERNEL_TERMIOS_H
#define _KERNEL_TERMIOS_H 1
/* The following corresponds to the values from the Linux 2.1.20 kernel. */
/* We need the definition of tcflag_t, cc_t, and speed_t. */
#include <termios.h>
#define __KERNEL_NCCS 17
struct __kernel_termios
{
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
tcflag_t c_cflag; /* control mode flags */
tcflag_t c_lflag; /* local mode flags */
cc_t c_line; /* line discipline */
cc_t c_cc[__KERNEL_NCCS]; /* control characters */
};
#endif /* kernel_termios.h */

4
sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
View File

@ -1,7 +1,3 @@
ifeq ($(subdir),signal)
sysdep_routines += __sigtrampoline
endif
asm-CPPFLAGS=-D__ASSEMBLY__
ASFLAGS-.os=-fPIC

140
sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S
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@ -1,140 +0,0 @@
/* Userland trampoline code for sigaction on Linux/SPARC */
/* (C) 1996, 1997 Free Software Foundation, Inc. */
/* This file is part of the GNU C Library. */
/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu) */
/* Many thanks go to David Miller for explaining all this to me */
/* miguel@nuclecu.unam.mx */
/* Sources: David Miller, 4.4BSD/SPARC code */
#include <sysdep.h>
#define __ASSEMBLY__
/* For REGWIN_SZ */
#include <asm/ptrace.h>
#include <asm/psr.h>
/* The C compiler frame size */
#define CCFSZ 96
.text
ENTRY(____sparc_signal_trampoline)
.global C_SYMBOL_NAME(____sig_table)
/* Make room for 32 %f registers + %fsr
* this is 132 bytes + alignement = 136
* 96 is the C frame size
*/
save %sp,-136-CCFSZ,%sp
/* save regular registers */
mov %g2,%l2
mov %g3,%l3
mov %g4,%l4
mov %g5,%l5
mov %g6,%l6
mov %g7,%l7
/* save fpu registers */
ld [%fp+64+16+20],%l0 /* load the psr from sigcontext */
sethi %hi(PSR_EF),%l1
andcc %l0,%l1,%l0 /* is floating point enabled? */
be 1f
rd %y,%l1 /* save y anyways */
/* save fpu registers */
st %fsr, [%sp + CCFSZ + 0]
std %f0, [%sp + CCFSZ + 8]
std %f2, [%sp + CCFSZ + 16]
std %f4, [%sp + CCFSZ + 24]
std %f6, [%sp + CCFSZ + 32]
std %f8, [%sp + CCFSZ + 40]
std %f10, [%sp + CCFSZ + 48]
std %f12, [%sp + CCFSZ + 56]
std %f14, [%sp + CCFSZ + 64]
std %f16, [%sp + CCFSZ + 72]
std %f18, [%sp + CCFSZ + 80]
std %f20, [%sp + CCFSZ + 88]
std %f22, [%sp + CCFSZ + 96]
std %f24, [%sp + CCFSZ + 104]
std %f26, [%sp + CCFSZ + 112]
std %f28, [%sp + CCFSZ + 120]
std %f30, [%sp + CCFSZ + 128]
1:
/* Load signal number */
ld [%fp + REGWIN_SZ],%o0
mov %fp,%o1
mov 0xfea,%o2
/* Sanity check */
cmp %o0,33
bl 1f
or %g0,%g0,%g1 /*Call sys_setup */
t 0x10
1:
#ifdef PIC
/* Save return address */
mov %o7,%o5
11: call 12f
sethi %hi(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
12: or %o5,%lo(_GLOBAL_OFFSET_TABLE_-(11b-.)),%o4
add %o7,%o4,%o4
/* restore return address */
mov %o5,%o7
/* o4 has the GOT pointer */
#endif
sethi %hi(C_SYMBOL_NAME(____sig_table)),%o5
or %o5,%lo(C_SYMBOL_NAME(____sig_table)),%o5
#ifdef PIC
ld [%o4+%o5], %o5
#endif
sll %o0,2,%o4
add %o5,%o4,%o4
ld [%o4],%o4
ld [%fp + REGWIN_SZ + 4],%o1 /* Load subcode */
ld [%fp + REGWIN_SZ + 8],%o2 /* pointer to sigcontext */
call %o4
ld [%fp + REGWIN_SZ + 12],%o3 /* Address where signal ocurre
*/
/* handler returned, restore state */
tst %l0
be 1f
wr %l1,%g0,%y
/* fpu restoration */
ld [%sp + CCFSZ + 0], %fsr
ldd [%sp + CCFSZ + 8], %f0
ldd [%sp + CCFSZ + 16], %f2
ldd [%sp + CCFSZ + 24], %f4
ldd [%sp + CCFSZ + 32], %f6
ldd [%sp + CCFSZ + 40], %f8
ldd [%sp + CCFSZ + 48], %f10
ldd [%sp + CCFSZ + 56], %f12
ldd [%sp + CCFSZ + 64], %f14
ldd [%sp + CCFSZ + 72], %f16
ldd [%sp + CCFSZ + 80], %f18
ldd [%sp + CCFSZ + 88], %f20
ldd [%sp + CCFSZ + 96], %f22
ldd [%sp + CCFSZ + 104], %f24
ldd [%sp + CCFSZ + 112], %f26
ldd [%sp + CCFSZ + 120], %f28
ldd [%sp + CCFSZ + 128], %f30
1:
mov %l2,%g2
mov %l3,%g3
mov %l4,%g4
mov %l5,%g5
mov %l6,%g6
mov %l7,%g7
/* call sigreturn */
restore %g0,SYS_ify(sigreturn),%g1 /* register back and set syscal */
add %sp,64+16,%o0
t 0x10
/* if we return, sysreturn failed */
mov SYS_ify(exit),%g1
t 0x10
END(____sparc_signal_trampoline)

4
sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
View File

@ -44,7 +44,7 @@ __clone:
mov %i2,%o0
set __NR_clone,%g1
ta 0x10
bcs __clone_syscall_error
bcs .Lerror
tst %o1
bne __thread_start
nop
@ -54,7 +54,7 @@ __clone:
.Lerror:
call __errno_location
set EINVAL,%i0
or %g0,EINVAL,%i0
st %i0,[%o0]
mov -1,%i0
ret

2
sysdeps/unix/sysv/linux/sparc/sparc32/getgroups.c Normal file
View File

@ -0,0 +1,2 @@
/* We also have to rewrite the kernel gid_t to the user land type. */
#include <sysdeps/unix/sysv/linux/i386/getgroups.c>

2
sysdeps/unix/sysv/linux/sparc/sparc32/setgroups.c Normal file
View File

@ -0,0 +1,2 @@
/* We also have to rewrite the kernel gid_t to the user land type. */
#include <sysdeps/unix/sysv/linux/i386/setgroups.c>

10
sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
View File

@ -34,14 +34,14 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
struct kernel_sigaction k_sigact, k_osigact;
/* Magic to tell the kernel we are using "new-style" signals, in that
the signal table is not kept in userspace. Not the same as the
the signal table is not kept in userspace. Not the same as the
really-new-style rt signals. */
sig = -sig;
if (act)
{
k_sigact.sa_handler = act->sa_handler;
k_sigact.sa_mask = act->sa_mask.__val[0];
k_sigact.k_sa_handler = act->sa_handler;
memcpy (&k_sigact.sa_mask, &act->sa_mask, sizeof (sigset_t));
k_sigact.sa_flags = act->sa_flags;
}
@ -70,8 +70,8 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
{
if (oact)
{
oact->sa_handler = k_osigact.sa_handler;
oact->sa_mask.__val[0] = k_osigact.sa_mask;
oact->sa_handler = k_osigact.k_sa_handler;
memcpy (&oact->sa_mask, &k_osigact.sa_mask, sizeof (sigset_t));
oact->sa_flags = k_osigact.sa_flags;
oact->sa_restorer = NULL;
}

2
sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
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@ -1,3 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names
s_getgroups getgroups getgroups 2 __syscall_getgroups
s_llseek llseek _llseek 5 __sys_llseek
s_setgroups setgroups setgroups 2 __syscall_setgroups

20
sysdeps/unix/sysv/linux/sparc/sys/kernel_termios.h
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@ -1,20 +0,0 @@
#ifndef _SYS_KERNEL_TERMIOS_H
#define _SYS_KERNEL_TERMIOS_H 1
/* The following corresponds to the values from the Linux 2.1.20 kernel. */
/* We need the definition of tcflag_t, cc_t, and speed_t. */
#include <termbits.h>
#define __KERNEL_NCCS 17
struct __kernel_termios
{
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
tcflag_t c_cflag; /* control mode flags */
tcflag_t c_lflag; /* local mode flags */
cc_t c_line; /* line discipline */
cc_t c_cc[__KERNEL_NCCS]; /* control characters */
};
#endif /* sys/kernel_termios.h */