[PATCH, ARM AArch64] Remove the user namespace symbol 'start' from newlib and libgloss

[Yufeng Zhang <Yufeng dot Zhang at arm dot com>]

Hi

This patch removes the symbol 'start' from newlib and libgloss in the 
ARM and AArch64 ports, as 'start' shall be a user namespace symbol.  The 
entry point is '_start' on elf systems.

Passed test on arm-none-eabi and aarch64-none-elf.

OK for the trunk?

Thanks,
Yufeng

libgloss/

	* aarch64/crt0.S: Remove 'start'.
	* arm/crt0.S: Ditto.
	* arm/redboot-crt0.S: Ditto.

newlib/

	* libc/sys/arm/crt0.S: Remove 'start'.

diff --git a/libgloss/aarch64/crt0.S b/libgloss/aarch64/crt0.S
index 1a5cabb..ae6264d 100644
--- a/libgloss/aarch64/crt0.S
+++ b/libgloss/aarch64/crt0.S
@@ -81,7 +81,6 @@
 
 	FUNC_START	_mainCRTStartup
 	FUNC_START	_start
-	FUNC_START	start
 
 /* Start by setting up a stack */
 
diff --git a/libgloss/arm/crt0.S b/libgloss/arm/crt0.S
index 5e33036..9246849 100644
--- a/libgloss/arm/crt0.S
+++ b/libgloss/arm/crt0.S
@@ -72,7 +72,6 @@
 
 	FUNC_START	_mainCRTStartup
 	FUNC_START	_start
-	FUNC_START	start
 #if defined(__ELF__) && !defined(__USING_SJLJ_EXCEPTIONS__)
 	/* Annotation for EABI unwinding tables.  */
 	.fnstart
diff --git a/libgloss/arm/redboot-crt0.S b/libgloss/arm/redboot-crt0.S
index 88eb60d..1d90228 100644
--- a/libgloss/arm/redboot-crt0.S
+++ b/libgloss/arm/redboot-crt0.S
@@ -28,7 +28,6 @@
 .endm
 	.code 32
 #endif
-	FUNC_START SYM_NAME(start)
 	FUNC_START SYM_NAME(_start)
     /* Unnecessary to set fp for v6-m/v7-m, which don't support
        ARM state.  */
diff --git a/newlib/libc/sys/arm/crt0.S b/newlib/libc/sys/arm/crt0.S
index 5e85ee2..b56072f 100644
--- a/newlib/libc/sys/arm/crt0.S
+++ b/newlib/libc/sys/arm/crt0.S
@@ -72,7 +72,6 @@
 
 	FUNC_START	_mainCRTStartup
 	FUNC_START	_start
-	FUNC_START	start
 #if defined(__ELF__) && !defined(__USING_SJLJ_EXCEPTIONS__)
 	/* Annotation for EABI unwinding tables.  */
 	.fnstart