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Mon Mar 4 21:57:14 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>

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* sysdeps/unix/sysv/linux/m68k/sysdep.h (SYS_ify): Redefine.
	(CALL_MCOUNT): New macro, empty unless [PROF].
	(ENTRY): Do CALL_MCOUNT just after the label.
	(JUMPTARGET): New macro.
	(SYSCALL_ERROR_HANDLER): Fix syntax.
This commit is contained in:
Roland McGrath 1996-03-14 11:19:46 +00:00
parent 5198eaa39a
commit b2801ddac4
1 changed files with 32 additions and 2 deletions
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34
sysdeps/unix/sysv/linux/m68k/sysdep.h
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@ -23,6 +23,17 @@ Cambridge, MA 02139, USA. */
#include <sysdeps/unix/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
so we have to redefine the `SYS_ify' macro here. */
#undef SYS_ify
#ifdef __STDC__
# define SYS_ify(syscall_name) __NR_##syscall_name
#else
# define SYS_ify(syscall_name) __NR_/**/syscall_name
#endif
#ifdef ASSEMBLER
#define POUND #
@ -32,7 +43,26 @@ Cambridge, MA 02139, USA. */
.globl name; \
.type name, @function; \
.align 4; \
name##:
C_LABEL(name) \
CALL_MCOUNT
/* If compiled for profiling, call `_mcount' at the start of each function. */
#ifdef PROF
/* The mcount code relies on a normal frame pointer being on the stack
to locate our caller, so push one just for its benefit. */
#define CALL_MCOUNT \
move.l %fp, -(%sp); move.l %sp, %fp; \
jbsr JUMPTARGET (_mcount); \
move.l (%sp)+, %fp;
#else
#define CALL_MCOUNT /* Do nothing. */
#endif
#ifdef PIC
#define JUMPTARGET(name) name##@PLTPC
#else
#define JUMPTARGET(name) name
#endif
/* Since C identifiers are not normally prefixed with an underscore
on this system, the asm identifier `syscall_error' intrudes on the
@ -53,7 +83,7 @@ Cambridge, MA 02139, USA. */
/* Store (- %d0) into errno through the GOT. */
#define SYSCALL_ERROR_HANDLER \
syscall_error: \
move.l (errno@GOTPC.l, %pc), %a0; \
move.l (errno@GOTPC, %pc), %a0; \
neg.l %d0; \
move.l %d0, (%a0); \
move.l POUND -1, %d0; \