From f73db50f5608c2299cd1de41c11ee897c5830b4a Mon Sep 17 00:00:00 2001
From: cognet <cognet@FreeBSD.org>
Date: Thu, 23 Sep 2004 23:04:52 +0000
Subject: Add stubs for TLS. Arbitraly choose the 2nd variant until I figure
 out which one I should use.

---
 libexec/rtld-elf/arm/reloc.c        | 13 +++++++++++--
 libexec/rtld-elf/arm/rtld_machdep.h | 23 ++++++++++++++++-------
 libexec/rtld-elf/arm/rtld_start.S   |  9 +++------
 libexec/rtld-elf/rtld.c             |  3 ++-
 4 files changed, 32 insertions(+), 16 deletions(-)

(limited to 'libexec')

diff --git a/libexec/rtld-elf/arm/reloc.c b/libexec/rtld-elf/arm/reloc.c
index e4157b6..6dd8ad0 100644
--- a/libexec/rtld-elf/arm/reloc.c
+++ b/libexec/rtld-elf/arm/reloc.c
@@ -90,13 +90,11 @@ _rtld_relocate_nonplt_self(Elf_Dyn *dynp, Elf_Addr relocbase)
 	}
 	rellim = (const Elf_Rel *)((caddr_t)rel + relsz);
 	size = (rellim - 1)->r_offset - rel->r_offset;
-	mprotect((void*)relocbase, size, PROT_READ|PROT_WRITE|PROT_EXEC); 
 	for (; rel < rellim; rel++) {
 		where = (Elf_Addr *)(relocbase + rel->r_offset);
 		
 		*where += (Elf_Addr)relocbase;
 	}
-	mprotect((void*)relocbase, size, PROT_READ|PROT_EXEC);
 }
 /*
  * It is possible for the compiler to emit relocations for unaligned data.
@@ -339,3 +337,14 @@ reloc_jmpslot(Elf_Addr *where, Elf_Addr target, const Obj_Entry *defobj,
 	return target;
 }
 
+void
+allocate_initial_tls(Obj_Entry *objs)
+{
+	
+}
+
+void *
+__tls_get_addr(tls_index* ti)
+{
+	return (NULL);
+}
diff --git a/libexec/rtld-elf/arm/rtld_machdep.h b/libexec/rtld-elf/arm/rtld_machdep.h
index 02849a9..8e841e0 100644
--- a/libexec/rtld-elf/arm/rtld_machdep.h
+++ b/libexec/rtld-elf/arm/rtld_machdep.h
@@ -37,14 +37,8 @@
 struct Struct_Obj_Entry;
 
 /* Return the address of the .dynamic section in the dynamic linker. */
-#if 0
-#define rtld_dynamic(obj) \
-    ((const Elf_Dyn *)((obj)->relocbase + (Elf_Addr)&_DYNAMIC))
-#endif
-#if 0
 #define rtld_dynamic(obj) (&_DYNAMIC)
-#endif
-#define rtld_dynamic(obj) (const Elf_Dyn *)((obj)->relocbase)
+
 Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target,
 		       const struct Struct_Obj_Entry *defobj,
 		       const struct Struct_Obj_Entry *obj,
@@ -55,10 +49,25 @@ Elf_Addr reloc_jmpslot(Elf_Addr *where, Elf_Addr target,
 
 #define call_initfini_pointer(obj, target) \
 	(((InitFunc)(target))())
+	
+typedef struct {
+	unsigned long ti_module;
+	unsigned long ti_offset;
+} tls_index;
 
+#define round(size, align) \
+	(((size) + (align) - 1) & ~((align) - 1))
+#define calculate_first_tls_offset(size, align) \
+	round(size, align)                                     
+#define calculate_tls_offset(prev_offset, prev_size, size, align) \
+	    round(prev_offset + prev_size, align)
+#define calculate_tls_end(off, size)    ((off) + (size))
+	
+	
 /*
  * Lazy binding entry point, called via PLT.
  */
 void _rtld_bind_start(void);
 
+extern void *__tls_get_addr(tls_index *ti);
 #endif
diff --git a/libexec/rtld-elf/arm/rtld_start.S b/libexec/rtld-elf/arm/rtld_start.S
index 5b0619b..1789791 100644
--- a/libexec/rtld-elf/arm/rtld_start.S
+++ b/libexec/rtld-elf/arm/rtld_start.S
@@ -60,17 +60,14 @@ __FBSDID("$FreeBSD$");
 	bl	_rtld_relocate_nonplt_self
 	mov	r1, sp
 	add	r2, sp, #4
-	mov	r0, r6		/* sp */
+	mov	r0, r6			/* sp */
 	bl	_rtld			/* call the shared loader */
 	mov	r3, r0			/* save entry point */
 
-	ldr	r1, [sp, #0]		/* r2 = cleanup */
-	ldr	r0, [sp, #4]		/* r1 = obj_main */
+	ldr	r2, [sp, #0]		/* r2 = cleanup */
+	ldr	r1, [sp, #4]		/* r1 = obj_main */
 	add	sp, sp, #8		/* restore stack */
-	#if 0
 	mov	r0, r4			/* restore ps_strings */
-	#endif
-	mov	r2, #0
 	mov	pc, r3			/* jump to the entry point */
 .L2:
 	.word	_GLOBAL_OFFSET_TABLE_ - (.L1+8)
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c
index 3891f17..5740e91 100644
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@@ -2607,7 +2607,8 @@ free_tls(void *tls, size_t tcbsize, size_t tcbalign)
 
 #endif
 
-#if defined(__i386__) || defined(__amd64__) || defined(__sparc64__)
+#if defined(__i386__) || defined(__amd64__) || defined(__sparc64__) || \
+    defined(__arm__)
 
 /*
  * Allocate Static TLS using the Variant II method.
-- 
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