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(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.

This commit is contained in:
Andreas Schwab 2002-12-21 20:08:15 +00:00
parent fb9016614d
commit 9d3831f374
1 changed files with 22 additions and 6 deletions
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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: