add general fdpic support in dynamic linker and arch support for sh

[musl] / arch / sh / crt_arch.h

diff --git a/arch/sh/crt_arch.h b/arch/sh/crt_arch.h
index 5fd39fc..b902dcc 100644 (file)
--- a/arch/sh/crt_arch.h
+++ b/arch/sh/crt_arch.h
@@ -1,12 +1,55 @@
-__asm__("\
-.global _start \n\
-_start: \n\
-       mov r15, r4 \n\
-       mov #-16, r0 \n\
-       and r0, r15 \n\
-       bsr __cstart \n\
-       nop \n\
-");
+#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 r10, r5 \n"
+"      mov r15, r4 \n"
+"      mov.l r9, @-r15 \n"
+"      mov.l r8, @-r15 \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"
+START ": \n"
+"      mova 1f, r0 \n"
+"      mov.l 1f, r5 \n"
+"      add r0, r5 \n"
+"      mov r15, r4 \n"
+"      mov #-16, r0 \n"
+"      and r0, r15 \n"
+"      bsr " START "_c \n"
+"      nop \n"
+".align 2 \n"
+".weak _DYNAMIC \n"
+".hidden _DYNAMIC \n"
+"1:    .long _DYNAMIC-. \n"
+);
+
+#endif
 
 /* used by gcc for switching the FPU between single and double precision */
+#ifdef SHARED
+__attribute__((__visibility__("hidden")))
+#endif
 const unsigned long __fpscr_values[2] = { 0, 0x80000 };