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From: Oleksandr Tymoshenko <gonzo@FreeBSD.org>
Date: Wed, 15 Aug 2012 03:07:41 +0000 (UTC)
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Subject: svn commit: r239269 - head/libexec/rtld-elf/arm
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Author: gonzo
Date: Wed Aug 15 03:07:41 2012
New Revision: 239269
URL: http://svn.freebsd.org/changeset/base/239269

Log:
  Merging of projects/armv6, part 2
  
  Handle TLS for ARMv6 and ARMv7

Modified:
  head/libexec/rtld-elf/arm/reloc.c

Modified: head/libexec/rtld-elf/arm/reloc.c
==============================================================================
--- head/libexec/rtld-elf/arm/reloc.c	Wed Aug 15 03:03:03 2012	(r239268)
+++ head/libexec/rtld-elf/arm/reloc.c	Wed Aug 15 03:07:41 2012	(r239269)
@@ -433,7 +433,9 @@ reloc_jmpslot(Elf_Addr *where, Elf_Addr 
 void
 allocate_initial_tls(Obj_Entry *objs)
 {
+#ifdef ARM_TP_ADDRESS
 	void **_tp = (void **)ARM_TP_ADDRESS;
+#endif
 
 	/*
 	* Fix the size of the static TLS block by using the maximum
@@ -443,16 +445,27 @@ allocate_initial_tls(Obj_Entry *objs)
 
 	tls_static_space = tls_last_offset + tls_last_size + RTLD_STATIC_TLS_EXTRA;
 
+#ifdef ARM_TP_ADDRESS
 	(*_tp) = (void *) allocate_tls(objs, NULL, TLS_TCB_SIZE, 8);
+#else
+	sysarch(ARM_SET_TP, allocate_tls(objs, NULL, TLS_TCB_SIZE, 8));
+#endif
 }
 
 void *
 __tls_get_addr(tls_index* ti)
 {
-	void **_tp = (void **)ARM_TP_ADDRESS;
 	char *p;
+#ifdef ARM_TP_ADDRESS
+	void **_tp = (void **)ARM_TP_ADDRESS;
 
 	p = tls_get_addr_common((Elf_Addr **)(*_tp), ti->ti_module, ti->ti_offset);
+#else
+	void *_tp;
+	__asm __volatile("mrc  p15, 0, %0, c13, c0, 3"		\
+	    : "=r" (_tp));
+	p = tls_get_addr_common((Elf_Addr **)(_tp), ti->ti_module, ti->ti_offset);
+#endif
 
 	return (p);
 }