Patch from lethal, adding syscall() to the sh64 port

diff --git a/libc/sysdeps/linux/sh64/Makefile b/libc/sysdeps/linux/sh64/Makefile
index 27463c6..91e607a 100644 (file)
--- a/libc/sysdeps/linux/sh64/Makefile
+++ b/libc/sysdeps/linux/sh64/Makefile
@@ -32,7 +32,7 @@ CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o
 SSRC = setjmp.S longjmp.S 
 SOBJS = $(patsubst %.S,%.o, $(SSRC))
 
-CSRC = fork.c __init_brk.c brk.c sbrk.c
+CSRC = fork.c __init_brk.c brk.c sbrk.c syscall.c
 COBJS = $(patsubst %.c,%.o, $(CSRC))
 
 OBJS = $(SOBJS) $(COBJS)

diff --git a/libc/sysdeps/linux/sh64/syscall.c b/libc/sysdeps/linux/sh64/syscall.c
new file mode 100644 (file)
index 0000000..a6c55eb
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/syscall.c
@@ -0,0 +1,24 @@
+
+
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+long syscall(long sysnum,
+               long arg1, long arg2, long arg3,
+               long arg4, long arg5, long arg6)
+{
+register long __sc0 __asm__ ("r9") = ((0x16 << 16) | sysnum);
+register long __sc2 __asm__ ("r2") = (long) arg1;
+register long __sc3 __asm__ ("r3") = (long) arg2;
+register long __sc4 __asm__ ("r4") = (long) arg3;
+register long __sc5 __asm__ ("r5") = (long) arg4;
+register long __sc6 __asm__ ("r6") = (long) arg5;
+register long __sc7 __asm__ ("r7") = (long) arg6;
+__asm__ __volatile__ ("trapa   %1" \
+       : "=r" (__sc0) \
+       : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
+         "r" (__sc6), "r" (__sc7));
+__syscall_return(long,__sc0);
+}