sparc/sysdep: Unify sparc sysdep.h

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/sparc/sysdep.h b/libc/sysdeps/linux/sparc/sysdep.h
new file mode 100644
index 000000000..230efe941
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/sysdep.h
@@ -0,0 +1,65 @@
+#ifndef _LINUX_SPARC_SYSDEP_H
+#define _LINUX_SPARC_SYSDEP_H 1
+
+#include <common/sysdep.h>
+
+#undef ENTRY
+#undef END
+
+#ifdef __ASSEMBLER__
+
+#define LOADSYSCALL(x) mov __NR_##x, %g1
+
+#define ENTRY(name)                 \
+    .align 4;                       \
+    .global C_SYMBOL_NAME(name);    \
+    .type   name, @function;        \
+C_LABEL(name)                       \
+    cfi_startproc;
+
+#define END(name)                   \
+    cfi_endproc;                    \
+    .size name, . - name
+
+#define LOC(name) .L##name
+
+	/* If the offset to __syscall_error fits into a signed 22-bit
+	 * immediate branch offset, the linker will relax the call into
+	 * a normal branch.
+	 */
+#undef PSEUDO
+#undef PSEUDO_END
+#undef PSEUDO_NOERRNO
+#undef PSEUDO_ERRVAL
+
+#define PSEUDO(name, syscall_name, args)	\
+	.text;					\
+	.globl		__syscall_error;	\
+ENTRY(name);					\
+	LOADSYSCALL(syscall_name);		\
+	ta		0x10;			\
+	bcc		1f;			\
+	 mov		%o7, %g1;		\
+	call		__syscall_error;	\
+	 mov		%g1, %o7;		\
+1:
+
+#define PSEUDO_NOERRNO(name, syscall_name, args)\
+	.text;					\
+ENTRY(name);					\
+	LOADSYSCALL(syscall_name);		\
+	ta		0x10;
+
+#define PSEUDO_ERRVAL(name, syscall_name, args)	\
+	.text;					\
+ENTRY(name);					\
+	LOADSYSCALL(syscall_name);		\
+	ta		0x10;
+
+#define PSEUDO_END(name)			\
+	END(name)
+
+
+#endif
+
+#endif