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(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
This commit is contained in:
Andreas Schwab 2002-12-21 20:09:41 +00:00
parent 257757f8b0
commit 9ff11db453
3 changed files with 24 additions and 7 deletions
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1
ChangeLog
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@ -3,6 +3,7 @@
* sysdeps/unix/sysv/linux/m68k/sysdep.h (INTERNAL_SYSCALL): Define.
(INLINE_SYSCALL): Use it.
(INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): Define.
(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
* sysdeps/unix/sysv/linux/m68k/getpagesize.c: Use INTERNAL_SYSCALL.
* sysdeps/unix/sysv/linux/m68k/brk.c: Likewise.

2
sysdeps/unix/sysv/linux/m68k/brk.c
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@ -33,7 +33,7 @@ __brk (void *addr)
{
void *newbrk;
newbrk = INTERNAL_SYSCALL (brk, 1, addr);
newbrk = (void *) INTERNAL_SYSCALL (brk, 1, addr);
__curbrk = newbrk;
if (newbrk < addr)

28
sysdeps/unix/sysv/linux/m68k/sysdep.h
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@ -21,6 +21,9 @@
#include <sysdeps/unix/sysdep.h>
#include <sysdeps/m68k/sysdep.h>
/* Defines RTLD_PRIVATE_ERRNO. */
#include <dl-sysdep.h>
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
of the kernel. But these symbols do not follow the SYS_* syntax
@ -66,9 +69,21 @@
END (name)
#ifdef PIC
# ifdef RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
SYSCALL_ERROR_LABEL: \
lea (errno, %pc), %a0; \
neg.l %d0; \
move.l %d0, (%a0); \
move.l &-1, %d0; \
/* Copy return value to %a0 for syscalls that are declared to return \
a pointer (e.g., mmap). */ \
move.l %d0, %a0; \
rts;
# else /* !RTLD_PRIVATE_ERRNO */
/* Store (- %d0) into errno through the GOT. */
#ifdef _LIBC_REENTRANT
#define SYSCALL_ERROR_HANDLER \
# if defined _LIBC_REENTRANT
# define SYSCALL_ERROR_HANDLER \
SYSCALL_ERROR_LABEL: \
neg.l %d0; \
move.l %d0, -(%sp); \
@ -79,8 +94,8 @@ SYSCALL_ERROR_LABEL: \
a pointer (e.g., mmap). */ \
move.l %d0, %a0; \
rts;
#else /* !_LIBC_REENTRANT */
#define SYSCALL_ERROR_HANDLER \
# else /* !_LIBC_REENTRANT */
# define SYSCALL_ERROR_HANDLER \
SYSCALL_ERROR_LABEL: \
move.l (errno@GOTPC, %pc), %a0; \
neg.l %d0; \
@ -90,9 +105,10 @@ SYSCALL_ERROR_LABEL: \
a pointer (e.g., mmap). */ \
move.l %d0, %a0; \
rts;
#endif /* _LIBC_REENTRANT */
# endif /* _LIBC_REENTRANT */
# endif /* RTLD_PRIVATE_ERRNO */
#else
#define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
#endif /* PIC */
/* Linux takes system call arguments in registers: