Added __arch_get_caller(). Correctly implemented for x86 only.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28567 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/libroot/libroot_private.h

@@ -37,6 +37,7 @@ void __arch_init_time(struct real_time_data *data, bool setDefaults);
 bigtime_t __arch_get_system_time_offset(struct real_time_data *data);
 void __init_pwd_backend(void);
 void __reinit_pwd_backend_after_fork(void);
+void* __arch_get_caller(void);
 
 
 #ifdef __cplusplus

src/system/libroot/os/arch/m68k/Jamfile

@@ -8,6 +8,7 @@ MergeObject os_arch_$(TARGET_ARCH).o :
 	byteorder.S
 	compatibility.c	# only here until the places where those functions are used
 					# are fixed
+	stack_frame.c
 #	systeminfo.c
 	system_time.c
 	system_time_asm.S

src/system/libroot/os/arch/m68k/stack_frame.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2008, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+*/
+
+#include <SupportDefs.h>
+
+#include <libroot_private.h>
+
+
+void*
+get_stack_frame(void)
+{
+	// TODO: Implement!
+	return NULL;
+}
+
+
+void*
+__arch_get_caller(void)
+{
+	// TODO: Implement!
+	return NULL;
+}

src/system/libroot/os/arch/ppc/Jamfile

@@ -10,6 +10,7 @@ MergeObject os_arch_$(TARGET_ARCH).o :
 	byteorder.S
 	compatibility.c	# only here until the places where those functions are used
 					# are fixed
+	stack_frame.c
 #	systeminfo.c
 	system_time.c
 	system_time_asm.S

src/system/libroot/os/arch/ppc/stack_frame.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2008, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+*/
+
+#include <SupportDefs.h>
+
+#include <libroot_private.h>
+
+
+void*
+get_stack_frame(void)
+{
+	// TODO: Implement!
+	return NULL;
+}
+
+
+void*
+__arch_get_caller(void)
+{
+	// TODO: Implement!
+	return NULL;
+}

src/system/libroot/os/arch/x86/get_stack_frame.S

@@ -1,13 +1,21 @@
 /*
- * Copyright 2005, Ingo Weinhold, bonefish@users.sf.net. All rights reserved.
+ * Copyright 2005-2008, Ingo Weinhold, ingo_weinhold@gmx.de.
  * Distributed under the terms of the MIT License.
 */
 
 #include <asm_defs.h>
 
 
-/* void *get_stack_frame() */
+/* void* get_stack_frame(void) */
 FUNCTION(get_stack_frame):
 	mov		%ebp, %eax
 	ret
 FUNCTION_END(get_stack_frame)
+
+
+/* void* __arch_get_caller(void); */
+FUNCTION(__arch_get_caller):
+	mov		4(%ebp), %eax
+	ret
+FUNCTION_END(__arch_get_caller)
+