crt1.S -> include sysdep.h -> include sysnum.h

In multistage gcc build, Buildroot happens to build crt1.S before
sysnum.h is generated. So break the above include chain and opencode the
ENTRY/END macros.

Reported-by: Anton Kolesov <akole...@synopsys.com>
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
---
 libc/sysdeps/linux/arc/crt1.S | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/libc/sysdeps/linux/arc/crt1.S b/libc/sysdeps/linux/arc/crt1.S
index d78a96dcc4fb..95c41f888850 100644
--- a/libc/sysdeps/linux/arc/crt1.S
+++ b/libc/sysdeps/linux/arc/crt1.S
@@ -5,7 +5,6 @@
  */
 
 #include <features.h>
-#include <sysdep.h>
 
 .text
 
@@ -31,7 +30,12 @@
         env[0...N]      environment variables (pointers)
         NULL
 */
-ENTRY(__start)
+       .text
+       .align 4
+       .global __start
+       .hidden __start
+       .type __start,@function
+__start:
        mov     fp, 0
        ld_s    r1, [sp]        ; argc
 
@@ -50,5 +54,4 @@ ENTRY(__start)
 
        /* Should never get here....  */
        flag    1
-END(__start)
-libc_hidden_def(__start)
+.size __start,.-__start
-- 
1.8.1.2

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