Linux: Use system call tables during build

Use <arch-syscall.h> instead of <asm/unistd.h> to obtain the system
call numbers.  A few direct includes of <asm/unistd.h> need to be
removed (if the system call numbers are already provided indirectly
by <sysdep.h>) or replaced with <sys/syscall.h>.

Current Linux headers for alpha define the required system call names,
so most of the _NR_* hacks are no longer needed.  For the 32-bit arm
architecture, eliminate the INTERNAL_SYSCALL_ARM macro, now that we
have regular system call names for cacheflush and set_tls.  There are
more such cleanup opportunities for other architectures, but these
cleanups are required to avoid macro redefinition errors during the
build.

For ia64, it is desirable to use <asm/break.h> directly to obtain
the break number for system calls (which is not a system call number
itself).  This requires replacing __BREAK_SYSCALL with
__IA64_BREAK_SYSCALL because the former is defined as an alias in
<asm/unistd.h>, but not in <asm/break.h>.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

5 files changed, 7 insertions, 7 deletions

diff --git a/sysdeps/unix/sysv/linux/ia64/brk.S b/sysdeps/unix/sysv/linux/ia64/brk.S
index f4195c8672..734d3467a7 100644
--- a/sysdeps/unix/sysv/linux/ia64/brk.S
+++ b/sysdeps/unix/sysv/linux/ia64/brk.S
@@ -20,7 +20,6 @@
 
 #include <sysdep.h>
 
-#include <asm/unistd.h>
 #include <asm/errno.h>
 
 	.global __curbrk
diff --git a/sysdeps/unix/sysv/linux/ia64/clone2.S b/sysdeps/unix/sysv/linux/ia64/clone2.S
index de6de43706..c8c90e5372 100644
--- a/sysdeps/unix/sysv/linux/ia64/clone2.S
+++ b/sysdeps/unix/sysv/linux/ia64/clone2.S
@@ -58,7 +58,7 @@ ENTRY(__clone2)
 	 */
 	mov r15=SYS_ify (clone2)
 	.save rp, r0
-	break __BREAK_SYSCALL
+	break __IA64_BREAK_SYSCALL
 	.body
 	cmp.eq p6,p0=-1,r10
 	cmp.eq CHILD,PARENT=0,r8 /* Are we the child?   */
@@ -78,7 +78,7 @@ ENTRY(__clone2)
 	mov gp=loc0
 	mov r15=SYS_ify (exit)
 	.save rp, r0
-	break __BREAK_SYSCALL
+	break __IA64_BREAK_SYSCALL
 	ret			/* Not reached.		*/
 PSEUDO_END(__clone2)
 
diff --git a/sysdeps/unix/sysv/linux/ia64/syscall.S b/sysdeps/unix/sysv/linux/ia64/syscall.S
index 14b3be6927..d819f79d4b 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscall.S
+++ b/sysdeps/unix/sysv/linux/ia64/syscall.S
@@ -25,7 +25,7 @@ ENTRY(syscall)
 	   in {out0...out5} like the kernel syscall handler expects.  */
 	alloc r2=ar.pfs,1,0,8,0
 	mov r15=r32		/* syscall number */
-	break __BREAK_SYSCALL
+	break __IA64_BREAK_SYSCALL
 	;;
 	cmp.ne p6,p0=-1,r10	/* r10 = -1 on error */
 (p6)	ret
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.S b/sysdeps/unix/sysv/linux/ia64/sysdep.S
index be1aeb2e1c..75fc3d6456 100644
--- a/sysdeps/unix/sysv/linux/ia64/sysdep.S
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.S
@@ -51,7 +51,7 @@ END(__syscall_error)
 
 ENTRY(__ia64_syscall)
 	mov r15=r37		/* syscall number */
-	break __BREAK_SYSCALL
+	break __IA64_BREAK_SYSCALL
 	cmp.eq p6,p0=-1,r10	/* r10 = -1 on error */
 (p6)	br.cond.spnt.few __syscall_error
 	ret
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h
index c4aa72a2fc..61f32ca8b4 100644
--- a/sysdeps/unix/sysv/linux/ia64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h
@@ -25,6 +25,7 @@
 #include <sysdeps/ia64/sysdep.h>
 #include <dl-sysdep.h>
 #include <tls.h>
+#include <asm/break.h>
 
 /* In order to get __set_errno() definition in INLINE_SYSCALL.  */
 #ifndef __ASSEMBLER__
@@ -115,7 +116,7 @@
 
 #define DO_CALL_VIA_BREAK(num)			\
 	mov r15=num;				\
-	break __BREAK_SYSCALL
+	break __IA64_BREAK_SYSCALL
 
 #ifdef IA64_USE_NEW_STUB
 # ifdef SHARED
@@ -229,7 +230,7 @@
     register long _r15 asm ("r15") = name;			\
     long _retval;						\
     LOAD_REGS_##nr						\
-    __asm __volatile (BREAK_INSN (__BREAK_SYSCALL)		\
+    __asm __volatile (BREAK_INSN (__IA64_BREAK_SYSCALL)		\
 		      : "=r" (_r8), "=r" (_r10), "=r" (_r15)	\
 			ASM_OUTARGS_##nr			\
 		      : "2" (_r15) ASM_ARGS_##nr		\