rename superh port to "sh" for consistency

linux, gcc, etc. all use "sh" as the name for the superh arch. there
was already some inconsistency internally in musl: the dynamic linker
was searching for "ld-musl-sh.path" as its path file despite its own
name being "ld-musl-superh.so.1". there was some sentiment in both
directions as to how to resolve the inconsistency, but overall "sh"
was favored.

1 files changed, 47 insertions, 0 deletions

diff --git a/arch/sh/reloc.h b/arch/sh/reloc.h
new file mode 100644
index 00000000..97bee6ae
--- /dev/null
+++ b/arch/sh/reloc.h
@@ -0,0 +1,47 @@
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define ENDIAN_SUFFIX "l"
+#else
+#define ENDIAN_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "sh" ENDIAN_SUFFIX
+
+#define IS_COPY(x) ((x) == R_SH_COPY)
+#define IS_PLT(x)  ((x) == R_SH_JMP_SLOT)
+
+static inline void do_single_reloc(
+	struct dso *self, unsigned char *base_addr,
+	size_t *reloc_addr, int type, size_t addend,
+	Sym *sym, size_t sym_size,
+	struct symdef def, size_t sym_val)
+{
+	switch(type) {
+	case R_SH_GLOB_DAT:
+	case R_SH_JMP_SLOT:
+		*reloc_addr = sym_val;
+		break;
+	case R_SH_RELATIVE:
+		*reloc_addr = (size_t)base_addr + addend;
+		break;
+	case R_SH_DIR32:
+		*reloc_addr = sym_val + addend;
+		break;
+	case R_SH_REL32:
+		*reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr;
+		break;
+	case R_SH_COPY:
+		memcpy(reloc_addr, (void *)sym_val, sym_size);
+		break;
+	case R_SH_TLS_DTPMOD32:
+		*reloc_addr += def.dso ? def.dso->tls_id : self->tls_id;
+		break;
+	case R_SH_TLS_DTPOFF32:
+		*reloc_addr += def.sym->st_value;
+		break;
+	case R_SH_TLS_TPOFF32:
+		*reloc_addr += def.sym
+			? def.sym->st_value + def.dso->tls_offset + 8
+			: self->tls_offset + 8;
+		break;
+	}
+}