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authorAndreas Schwab <schwab@suse.de>2002-12-21 20:09:41 +0000
committerAndreas Schwab <schwab@suse.de>2002-12-21 20:09:41 +0000
commit9ff11db453caef3db334ace74cc2b579ff7cccfa (patch)
tree1438719cbb887d31975dcc5af8409c6cee96f313 /sysdeps/unix
parent257757f8b032bd2913db107b7bbfa76cbce6f9d1 (diff)
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*** empty log message ***
(SYSCALL_ERROR_HANDLER): Define RTLD_PRIVATE_ERRNO variant.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/brk.c2
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.h28
2 files changed, 23 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/brk.c b/sysdeps/unix/sysv/linux/m68k/brk.c
index adf6c64854..396b97d945 100644
--- a/sysdeps/unix/sysv/linux/m68k/brk.c
+++ b/sysdeps/unix/sysv/linux/m68k/brk.c
@@ -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)
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index 005e60ffe1..06033f4756 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -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: