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* sysdeps/unix/sysv/linux/m68k/sysdep.h (SYSCALL_ERROR_LABEL): New

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definition. 
(PSEUDO, SYSCALL_ERROR_HANDLER): Use it instead of syscall_error. 
* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise. 
* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise. 
* sysdeps/unix/sysv/linux/m68k/socket.S: Likewise. 
* sysdeps/unix/sysv/linux/m68k/syscall.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep.h (SYSCALL_ERROR_LABEL): New
	definition.
	(PSEUDO, SYSCALL_ERROR_HANDLER): Use it instead of syscall_error.
	* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/socket.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/syscall.S: Likewise.
This commit is contained in:
Andreas Schwab 1998-06-10 01:37:21 +00:00
parent 9e2c0dae9b
commit 4bec453640
6 changed files with 31 additions and 14 deletions
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8
ChangeLog
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@ -6,6 +6,14 @@ Wed Jun 10 10:32:11 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.
* sysdeps/m68k/elf/start.S: Pass new argument to
__libc_start_user.
* sysdeps/unix/sysv/linux/m68k/sysdep.h (SYSCALL_ERROR_LABEL): New
definition.
(PSEUDO, SYSCALL_ERROR_HANDLER): Use it instead of syscall_error.
* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/socket.S: Likewise.
* sysdeps/unix/sysv/linux/m68k/syscall.S: Likewise.
1998-06-09 18:16 Ulrich Drepper <drepper@cygnus.com>
* math/Makefile (libm-calls): Add w_exp10 and e_exp10.

8
sysdeps/unix/sysv/linux/m68k/clone.S
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@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
The GNU C Library is free software; you can redistribute it and/or
@ -32,10 +32,10 @@ ENTRY (__clone)
movel #-EINVAL, %d0
movel 4(%sp), %a0 /* no NULL function pointers */
tstl %a0
jeq syscall_error
jeq SYSCALL_ERROR_LABEL
movel 8(%sp), %a1 /* no NULL stack pointers */
tstl %a1
jeq syscall_error
jeq SYSCALL_ERROR_LABEL
/* Allocate space and copy the argument onto the new stack. */
movel 16(%sp), -(%a1)
@ -48,7 +48,7 @@ ENTRY (__clone)
exg %d2, %a1 /* restore %d2 */
tstl %d0
jmi syscall_error
jmi SYSCALL_ERROR_LABEL
jeq thread_start
rts

4
sysdeps/unix/sysv/linux/m68k/mmap.S
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@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1996, 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
@ -32,7 +32,7 @@ ENTRY (__mmap)
/* Kludge: negative numbers are among the legal return values.
If %d0 is between -4096 and 0 then there was an error. */
cmp.l #-4096, %d0
jhi syscall_error
jhi SYSCALL_ERROR_LABEL
/* Successful; return the syscall's value. Copy it to %a0 because
mmap is declared to return a pointer. */

4
sysdeps/unix/sysv/linux/m68k/socket.S
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@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1996, 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
@ -56,7 +56,7 @@ ENTRY (__socket)
/* %d0 is < 0 if there was an error. */
tst.l %d0
jmi syscall_error
jmi SYSCALL_ERROR_LABEL
/* Successful; return the syscall's value. */
rts

4
sysdeps/unix/sysv/linux/m68k/syscall.S
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@ -1,4 +1,4 @@
/* Copyright (C) 1996 Free Software Foundation, Inc.
/* Copyright (C) 1996, 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
@ -28,6 +28,6 @@ ENTRY (syscall)
trap &0 /* Do the system call. */
UNDOARGS_5 /* Unfrob arguments. */
cmp.l &-4095, %d0 /* Check %d0 for error. */
jcc syscall_error /* Jump to error handler if negative. */
jcc SYSCALL_ERROR_LABEL /* Jump to error handler if negative. */
rts /* Return to caller. */
PSEUDO_END (syscall)

17
sysdeps/unix/sysv/linux/m68k/sysdep.h
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@ -43,13 +43,22 @@
for a real error by making sure the value in %d0 is a real error
number. Linus said he will make sure the no syscall returns a value
in -1 .. -4095 as a valid result so we can savely test with -4095. */
/* We don't want the label for the error handler to be visible in the symbol
table when we define it here. */
#ifdef PIC
#define SYSCALL_ERROR_LABEL .Lsyscall_error
#else
#define SYSCALL_ERROR_LABEL __syscall_error
#endif
#undef PSEUDO
#define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
cmp.l &-4095, %d0; \
jcc syscall_error
jcc SYSCALL_ERROR_LABEL
#undef PSEUDO_END
#define PSEUDO_END(name) \
@ -60,7 +69,7 @@
/* Store (- %d0) into errno through the GOT. */
#ifdef _LIBC_REENTRANT
#define SYSCALL_ERROR_HANDLER \
syscall_error: \
SYSCALL_ERROR_LABEL: \
neg.l %d0; \
move.l %d0, -(%sp); \
jbsr __errno_location@PLTPC; \
@ -70,9 +79,9 @@ syscall_error: \
a pointer (e.g., mmap). */ \
move.l %d0, %a0; \
rts;
#else
#else /* !_LIBC_REENTRANT */
#define SYSCALL_ERROR_HANDLER \
syscall_error: \
SYSCALL_ERROR_LABEL: \
move.l (errno@GOTPC, %pc), %a0; \
neg.l %d0; \
move.l %d0, (%a0); \