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Diffstat (limited to 'ports/sysdeps/mips/tls-macros.h')
-rw-r--r--ports/sysdeps/mips/tls-macros.h63
1 files changed, 61 insertions, 2 deletions
diff --git a/ports/sysdeps/mips/tls-macros.h b/ports/sysdeps/mips/tls-macros.h
index 8fe2e4a150..3e87e42ea1 100644
--- a/ports/sysdeps/mips/tls-macros.h
+++ b/ports/sysdeps/mips/tls-macros.h
@@ -12,16 +12,33 @@
    (abicalls pic0) function.  */
 #ifndef __PIC__
 # if _MIPS_SIM != _ABI64
-#  define LOAD_GP "move %[tmp], $28\n\tla $28, __gnu_local_gp\n\t"
+#  ifndef __mips16
+#   define LOAD_GP "move %[tmp], $28\n\tla $28, __gnu_local_gp\n\t"
+#  else
+#   define LOAD_GP					\
+           "li %[tmp], %%hi(__gnu_local_gp)\n\t"	\
+           "sll %[tmp], 16\n\t"				\
+           "addiu %[tmp], %%lo(__gnu_local_gp)\n\t"
+#  endif
 # else
 #  define LOAD_GP "move %[tmp], $28\n\tdla $28, __gnu_local_gp\n\t"
 # endif
 # define UNLOAD_GP "\n\tmove $28, %[tmp]"
 #else
-# define LOAD_GP
+/* MIPS16 (re)creates the GP value using PC-relative instructions.  */
+# ifdef __mips16
+#  define LOAD_GP					\
+           "li %[tmp], %%hi(_gp_disp)\n\t"		\
+           "addiu %0, $pc, %%lo(_gp_disp)\n\t"		\
+           "sll %[tmp], 16\n\t"				\
+           "addu %[tmp], %0\n\t"
+# else
+#  define LOAD_GP
+# endif
 # define UNLOAD_GP
 #endif
 
+#ifndef __mips16
 # define TLS_GD(x)					\
   ({ void *__result, *__tmp;				\
      extern void *__tls_get_addr (void *);		\
@@ -62,3 +79,45 @@
 	  ADDU " %0,%0,$3"				\
 	  : "+r" (__result) : : "$3");			\
      __result; })
+
+#else /* __mips16 */
+/* MIPS16 version.  */
+# define TLS_GD(x)					\
+  ({ void *__result, *__tmp;				\
+     extern void *__tls_get_addr (void *);		\
+     asm (LOAD_GP ADDIU " %1, %%tlsgd(" #x ")"		\
+	  "\n\tmove %0, %1"				\
+	  : "=d" (__result), [tmp] "=&d" (__tmp));	\
+     (int *) __tls_get_addr (__result); })
+# define TLS_LD(x)					\
+  ({ void *__result, *__tmp;				\
+     extern void *__tls_get_addr (void *);		\
+     asm (LOAD_GP ADDIU " %1, %%tlsldm(" #x ")"		\
+	  "\n\tmove %0, %1"				\
+	  : "=d" (__result), [tmp] "=&d" (__tmp));	\
+     __result = __tls_get_addr (__result);		\
+     asm ("li $3,%%dtprel_hi(" #x ")\n\t"		\
+	  "sll $3,16\n\t"				\
+	  "addiu $3,%%dtprel_lo(" #x ")\n\t"		\
+	  ADDU " %0,%0,$3"				\
+	  : "+d" (__result) : : "$3");			\
+     __result; })
+# define TLS_IE(x)					\
+  ({ void *__result, *__tmp, *__tp;			\
+     __tp = __builtin_thread_pointer ();		\
+     asm (LOAD_GP LW " $3,%%gottprel(" #x ")(%1)\n\t"	\
+	  ADDU " %0,%[tp],$3"				\
+	  : "=&d" (__result), [tmp] "=&d" (__tmp)	\
+	  : [tp] "d" (__tp) : "$3");			\
+     __result; })
+# define TLS_LE(x)					\
+  ({ void *__result, *__tp;				\
+     __tp = __builtin_thread_pointer ();		\
+     asm ("li $3,%%tprel_hi(" #x ")\n\t"		\
+	  "sll $3,16\n\t"				\
+	  "addiu $3,%%tprel_lo(" #x ")\n\t"		\
+	  ADDU " %0,%[tp],$3"				\
+	  : "=d" (__result) : [tp] "d" (__tp) : "$3");	\
+     __result; })
+
+#endif /* __mips16 */