s390: Consolidate Linux syscall definition

The {INTERNAL,INLINE}_SYSCALL are defined only on s390 sysdep.h.

Checked on s390x-linux-gnu and s390-linux-gnu.

1 files changed, 103 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/s390/sysdep.h b/sysdeps/unix/sysv/linux/s390/sysdep.h
index 33ed86f252..7731d2ec7f 100644
--- a/sysdeps/unix/sysv/linux/s390/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/sysdep.h
@@ -16,6 +16,107 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#ifndef __ASSEMBLY__
+
+#undef SYS_ify
+#define SYS_ify(syscall_name)	__NR_##syscall_name
+
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...)				      \
+  ({									      \
+    long int _ret = INTERNAL_SYSCALL (name, , nr, args);		      \
+    if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (_ret, )))		      \
+     {									      \
+       __set_errno (INTERNAL_SYSCALL_ERRNO (_ret, ));			      \
+       _ret = -1;							      \
+     }									      \
+    _ret; })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+#undef INTERNAL_SYSCALL_DIRECT
+#define INTERNAL_SYSCALL_DIRECT(name, err, nr, args...)			      \
+  ({									      \
+    DECLARGS_##nr(args)							      \
+    register long int _ret __asm__("2");				      \
+    __asm__ __volatile__ (						      \
+			  "svc    %b1\n\t"				      \
+			  : "=d" (_ret)					      \
+			  : "i" (__NR_##name) ASMFMT_##nr		      \
+			  : "memory" );					      \
+    _ret; })
+
+#undef INTERNAL_SYSCALL_SVC0
+#define INTERNAL_SYSCALL_SVC0(name, err, nr, args...)			      \
+  ({									      \
+    DECLARGS_##nr(args)							      \
+    register unsigned long int _nr __asm__("1") =			      \
+      (unsigned long int)(__NR_##name);					      \
+    register long int _ret __asm__("2");				      \
+    __asm__ __volatile__ (						      \
+			  "svc    0\n\t"				      \
+			  : "=d" (_ret)					      \
+			  : "d" (_nr) ASMFMT_##nr			      \
+			  : "memory" );					      \
+    _ret; })
+
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(no, err, nr, args...)			      \
+  ({									      \
+    DECLARGS_##nr(args)							      \
+    register unsigned long int _nr __asm__("1") = (unsigned long int)(no);    \
+    register long int _ret __asm__("2");				      \
+    __asm__ __volatile__ (						      \
+			  "svc    0\n\t"				      \
+			  : "=d" (_ret)					      \
+			  : "d" (_nr) ASMFMT_##nr			      \
+			  : "memory" );					      \
+    _ret; })
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, nr, args...)				      \
+  (((__NR_##name) < 256)						      \
+   ? INTERNAL_SYSCALL_DIRECT(name, nr, args)				      \
+   : INTERNAL_SYSCALL_SVC0(name, nr, args))
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err)                                    \
+  ((unsigned long int) (val) > -4096UL)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err)        (-(val))
+
+#define DECLARGS_0()
+#define DECLARGS_1(arg1) \
+  register unsigned long int gpr2 __asm__ ("2") = (unsigned long int)(arg1);
+#define DECLARGS_2(arg1, arg2) \
+  DECLARGS_1(arg1) \
+  register unsigned long int gpr3 __asm__ ("3") = (unsigned long int)(arg2);
+#define DECLARGS_3(arg1, arg2, arg3) \
+  DECLARGS_2(arg1, arg2) \
+  register unsigned long int gpr4 __asm__ ("4") = (unsigned long int)(arg3);
+#define DECLARGS_4(arg1, arg2, arg3, arg4) \
+  DECLARGS_3(arg1, arg2, arg3) \
+  register unsigned long int gpr5 __asm__ ("5") = (unsigned long int)(arg4);
+#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
+  DECLARGS_4(arg1, arg2, arg3, arg4) \
+  register unsigned long int gpr6 __asm__ ("6") = (unsigned long int)(arg5);
+#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
+  DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
+  register unsigned long int gpr7 __asm__ ("7") = (unsigned long int)(arg6);
+
+#define ASMFMT_0
+#define ASMFMT_1 , "0" (gpr2)
+#define ASMFMT_2 , "0" (gpr2), "d" (gpr3)
+#define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
+#define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
+#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
+#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
+
+#define SINGLE_THREAD_BY_GLOBAL		1
+
+
 #define VDSO_NAME  "LINUX_2.6.29"
 #define VDSO_HASH  123718585
 
@@ -29,3 +130,5 @@
 #endif
 #define HAVE_GETTIMEOFDAY_VSYSCALL	"__kernel_gettimeofday"
 #define HAVE_GETCPU_VSYSCALL		"__kernel_getcpu"
+
+#endif