csu: Always use __executable_start in gmon-start.c

Current binutils defines __executable_start as the lowest text
address, so using the entry point address as a fallback is no
longer necessary.  As a result, overriding <entry.h> is only
necessary if the entry point is not called _start.

The previous approach to define __ASSEMBLY__ to suppress the
declaration breaks if headers included by <entry.h> are not
compatible with __ASSEMBLY__.  This happens with rseq integration
because it is necessary to include kernel headers in more places.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

1 files changed, 0 insertions, 13 deletions

diff --git a/sysdeps/ia64/entry.h b/sysdeps/ia64/entry.h
deleted file mode 100644
index e11b49fc53..0000000000
--- a/sysdeps/ia64/entry.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <link.h>
-#include <dl-fptr.h>
-
-#ifndef __ASSEMBLY__
-extern void _start (void);
-#endif
-
-/* The function's entry point is stored in the first word of the
-   function descriptor (plabel) of _start().  */
-#define ENTRY_POINT ELF_PTR_TO_FDESC (_start)->ip
-
-/* We have to provide a special declaration.  */
-#define ENTRY_POINT_DECL(class) class void _start (void);