#ifndef ARCH_SH_H
#define ARCH_SH_H
-#define ARCH (arch_sh)
+#define FIO_ARCH (arch_sh)
#ifndef __NR_ioprio_set
#define __NR_ioprio_set 288
#define nop __asm__ __volatile__ ("nop": : :"memory")
-#if defined(__SH4A__)
-#define mb() __asm__ __volatile__ ("synco": : :"memory")
-#else
-#define mb() __asm__ __volatile__ (" " : : : "memory")
-#endif
+#define mb() \
+ do { \
+ if (arch_flags & ARCH_FLAG_1) \
+ __asm__ __volatile__ ("synco": : :"memory"); \
+ else \
+ __asm__ __volatile__ (" " : : : "memory"); \
+ } while (0)
#define read_barrier() mb()
#define write_barrier() mb()
+#include <stdio.h>
+#include <elf.h>
+
+extern unsigned long arch_flags;
+
+#define CPU_HAS_LLSC 0x0040
+
+static inline int arch_init(char *envp[])
+{
+ Elf32_auxv_t *auxv;
+
+ while (*envp++ != NULL)
+ ;
+
+ for (auxv = (Elf32_auxv_t *) envp; auxv->a_type != AT_NULL; auxv++) {
+ if (auxv->a_type == AT_HWCAP) {
+ if (auxv->a_un.a_val & CPU_HAS_LLSC) {
+ arch_flags |= ARCH_FLAG_1;
+ break;
+ }
+ }
+ }
+
+ return 0;
+}
+
+#define ARCH_HAVE_INIT
+
#endif