fix excessively slow TLS performance on some mips models

[musl] / arch / mips / pthread_arch.h

diff --git a/arch/mips/pthread_arch.h b/arch/mips/pthread_arch.h
index 1e7839e..376b774 100644 (file)
--- a/arch/mips/pthread_arch.h
+++ b/arch/mips/pthread_arch.h
@@ -1,19 +1,18 @@
-static inline struct pthread *__pthread_self()
+static inline uintptr_t __get_tp()
 {
+       register uintptr_t tp __asm__("$3");
 #if __mips_isa_rev < 2
-       register char *tp __asm__("$3");
        __asm__ (".word 0x7c03e83b" : "=r" (tp) );
 #else
-       char *tp;
        __asm__ ("rdhwr %0, $29" : "=r" (tp) );
 #endif
-       return (pthread_t)(tp - 0x7000 - sizeof(struct pthread));
+       return tp;
 }
 
 #define TLS_ABOVE_TP
 #define GAP_ABOVE_TP 0
-#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
 
+#define TP_OFFSET 0x7000
 #define DTP_OFFSET 0x8000
 
 #define MC_PC pc