Remove HAVE_ASM_PPC_REL16 references

In bc0cdc4 the configure check for HAVE_ASM_PPC_REL16 was removed on the grounds that the minimum binutils supports rel16 relocs. This is true, but not all references to HAVE_ASM_PPC_REL16 in the sources were removed. * config.h.in: Remove HAVE_ASM_PPC_REL16. * sysdeps/powerpc/powerpc32/tls-macros.h: Remove HAVE_ASM_PPC_REL16 and false branch of conditional. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S: Likewise.
git-mirror · Mar 23, 2015 · 59261ad · 59261ad
1 parent 9e70234
commit 59261ad
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,11 @@
+2015-03-23  Alan Modra  <amodra@gmail.com>
+
+	* config.h.in: Remove HAVE_ASM_PPC_REL16.
+	* sysdeps/powerpc/powerpc32/tls-macros.h: Remove HAVE_ASM_PPC_REL16
+	and false branch of conditional.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
+	Likewise.
+
 2015-03-21  Samuel Thibault  <samuel.thibault@ens-lyon.org
 
 	* sysdeps/mach/hurd/Makefile ($(common-objpfx)errnos.d): Depend on

diff --git a/config.h.in b/config.h.in
@@ -151,9 +151,6 @@
 /* Define if inlined system calls are available.  */
 #undef HAVE_INLINED_SYSCALLS
 
-/* Define if your assembler and linker support R_PPC_REL16* relocs.  */
-#undef HAVE_ASM_PPC_REL16
-
 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 #undef HAVE_PPC_SECURE_PLT
 

diff --git a/sysdeps/powerpc/powerpc32/tls-macros.h b/sysdeps/powerpc/powerpc32/tls-macros.h
@@ -1,6 +1,5 @@
 /* Include sysdeps/powerpc/tls-macros.h for __TLS_CALL_CLOBBERS  */
 #include_next "tls-macros.h"
-#include "config.h"
 
 /* PowerPC32 Local Exec TLS access.  */
 #define TLS_LE(x)							      \
@@ -10,8 +9,7 @@
      __result; })
 
 /* PowerPC32 Initial Exec TLS access.  */
-#ifdef HAVE_ASM_PPC_REL16
-# define TLS_IE(x)							      \
+#define TLS_IE(x)							      \
   ({ int *__result;							      \
      asm ("bcl 20,31,1f\n1:\t"						      \
 	  "mflr %0\n\t"							      \
@@ -22,21 +20,9 @@
 	  : "=b" (__result) :						      \
 	  : "lr");							      \
      __result; })
-#else
-# define TLS_IE(x)							      \
-  ({ int *__result;							      \
-     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
-	  "mflr %0\n\t"							      \
-	  "lwz %0," #x "@got@tprel(%0)\n\t"				      \
-	  "add %0,%0," #x "@tls"					      \
-	  : "=b" (__result) :						      \
-	  : "lr");							      \
-     __result; })
-#endif
 
 /* PowerPC32 Local Dynamic TLS access.  */
-#ifdef HAVE_ASM_PPC_REL16
-# define TLS_LD(x)							      \
+#define TLS_LD(x)							      \
   ({ int *__result;							      \
      asm ("bcl 20,31,1f\n1:\t"						      \
 	  "mflr 3\n\t"							      \
@@ -48,22 +34,9 @@
 	  : "=r" (__result) :						      \
 	  : "3", __TLS_CALL_CLOBBERS);					      \
      __result; })
-#else
-# define TLS_LD(x)							      \
-  ({ int *__result;							      \
-     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
-	  "mflr 3\n\t"							      \
-	  "addi 3,3," #x "@got@tlsld\n\t"				      \
-	  "bl __tls_get_addr@plt\n\t"					      \
-	  "addi %0,3," #x "@dtprel"					      \
-	  : "=r" (__result) :						      \
-	  : "3", __TLS_CALL_CLOBBERS);					      \
-     __result; })
-#endif
 
 /* PowerPC32 General Dynamic TLS access.  */
-#ifdef HAVE_ASM_PPC_REL16
-# define TLS_GD(x)							      \
+#define TLS_GD(x)							      \
   ({ register int *__result __asm__ ("r3");				      \
      asm ("bcl 20,31,1f\n1:\t"						      \
 	  "mflr 3\n\t"							      \
@@ -74,14 +47,3 @@
 	  : "=r" (__result) :						      \
 	  : __TLS_CALL_CLOBBERS);					      \
      __result; })
-#else
-# define TLS_GD(x)							      \
-  ({ register int *__result __asm__ ("r3");				      \
-     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
-	  "mflr 3\n\t"							      \
-	  "addi 3,3," #x "@got@tlsgd\n\t"				      \
-	  "bl __tls_get_addr@plt"					      \
-	  : "=r" (__result) :						      \
-	  : __TLS_CALL_CLOBBERS);					      \
-     __result; })
-#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
@@ -301,14 +301,9 @@ ENTRY(__CONTEXT_FUNC_NAME)
 
 #  ifdef PIC
 	mflr    r8
-#   ifdef HAVE_ASM_PPC_REL16
 	SETUP_GOT_ACCESS(r7,got_label)
 	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-got_label@ha
 	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-got_label@l
-#   else
-	bl      _GLOBAL_OFFSET_TABLE_@local-4
-	mflr    r7
-#   endif
 	mtlr    r8
 #   ifdef SHARED
 	lwz     r7,_rtld_global_ro@got(r7)