Add a "fork" of musl as //fusl.

fusl/arch/sh/reloc.h

+#include <endian.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define ENDIAN_SUFFIX "eb"
+#else
+#define ENDIAN_SUFFIX ""
+#endif
+
+#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
+
+#define REL_SYMBOLIC    R_SH_DIR32
+#define REL_OFFSET      R_SH_REL32
+#define REL_GOT         R_SH_GLOB_DAT
+#define REL_PLT         R_SH_JMP_SLOT
+#define REL_RELATIVE    R_SH_RELATIVE
+#define REL_COPY        R_SH_COPY
+#define REL_DTPMOD      R_SH_TLS_DTPMOD32
+#define REL_DTPOFF      R_SH_TLS_DTPOFF32
+#define REL_TPOFF       R_SH_TLS_TPOFF32
+
+#define DL_NOMMU_SUPPORT 1
+
+#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 FDPIC_CONSTDISP_FLAG 0x100
+#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