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

[musl] / arch / sh / reloc.h

diff --git a/arch/sh/reloc.h b/arch/sh/reloc.h
index 61192ff..c571fe4 100644 (file)
--- a/arch/sh/reloc.h
+++ b/arch/sh/reloc.h
@@ -6,7 +6,19 @@
 #define ENDIAN_SUFFIX ""
 #endif
 
-#define LDSO_ARCH "sh" ENDIAN_SUFFIX
+#if __SH_FPU_ANY__ || __SH4__
+#define FP_SUFFIX ""
+#else
+#define FP_SUFFIX "-nofpu"
+#endif
+
+#if __SH_FDPIC__
+#define ABI_SUFFIX "-fdpic"
+#else
+#define ABI_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "sh" ENDIAN_SUFFIX FP_SUFFIX ABI_SUFFIX
 
 #define TPOFF_K 8
 
@@ -20,5 +32,20 @@
 #define REL_DTPOFF      R_SH_TLS_DTPOFF32
 #define REL_TPOFF       R_SH_TLS_TPOFF32
 
+#if __SH_FDPIC__
+#define REL_FUNCDESC    R_SH_FUNCDESC
+#define REL_FUNCDESC_VAL R_SH_FUNCDESC_VALUE
+#undef  REL_RELATIVE
+#define DL_FDPIC 1
+#define CRTJMP(pc,sp) do { \
+       register size_t r8 __asm__("r8") = ((size_t *)(sp))[-2]; \
+       __asm__ __volatile__( "jmp @%0 ; mov %1,r15" \
+       : : "r"(pc), "r"(sp), "r"(r8) : "memory" ); } while(0)
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+       "mov.l 1f,%0 ; add %1,%0 ; bra 2f ; nop ; .align 2 \n" \
+       "1:     .long " #sym "@GOTOFFFUNCDESC \n2:" \
+       : "=&r"(*fp) : "r"(got) : "memory" )
+#else
 #define CRTJMP(pc,sp) __asm__ __volatile__( \
        "jmp @%0 ; mov %1,r15" : : "r"(pc), "r"(sp) : "memory" )
+#endif