add fdpic version of entry point code for sh

this version of the entry point is only suitable for static linking in
ET_EXEC form. neither dynamic linking nor pie is supported yet. at
some point in the future the fdpic and non-fdpic versions of this code
may be unified but for now it's easiest to work with them separately.

diff --git a/arch/sh/crt_arch.h b/arch/sh/crt_arch.h
index f890710..e9745f9 100644 (file)
--- a/arch/sh/crt_arch.h
+++ b/arch/sh/crt_arch.h
@@ -1,3 +1,30 @@
+#ifdef __SH_FDPIC__
+
+__asm__(
+".text \n"
+".global " START " \n"
+START ": \n"
+"      mov r8, r4 \n"
+"      mova 1f, r0 \n"
+"      mov.l 1f, r5 \n"
+"      mov.l 1f+4, r6 \n"
+"      add r0, r5 \n"
+"      bsr __fdpic_fixup \n"
+"       add r0, r6 \n"
+"      mov r0, r12 \n"
+"      mov r15, r4 \n"
+"      mov #-16, r0 \n"
+"      bsr " START "_c \n"
+"       and r0, r15 \n"
+".align 2 \n"
+"1:    .long __ROFIXUP_LIST__@PCREL \n"
+"      .long __ROFIXUP_END__@PCREL + 4 \n"
+);
+
+#include "fdpic_crt.h"
+
+#else
+
 __asm__(
 ".text \n"
 ".global " START " \n"
@@ -16,6 +43,8 @@ START ": \n"
 "1:    .long _DYNAMIC-. \n"
 );
 
+#endif
+
 /* used by gcc for switching the FPU between single and double precision */
 #ifdef SHARED
 __attribute__((__visibility__("hidden")))