From 098414456c04a696e63e10cc4a798b134eab5355 Mon Sep 17 00:00:00 2001
From: Thomas Fitzsimmons <fitzsim@redhat.com>
Date: Wed, 1 May 2002 18:44:13 +0000
Subject: 	* libc/Makefile.am (SUBLIBS): Add LIBC_EXTRA_LIB. 
 (SUBDEFS): Add LIBC_EXTRA_DEF. 	* libc/configure.in (LIBC_EXTRA_LIB):
 New variable. 	(LIBC_EXTRA_DEF): Likewise. 	(extra_dir): Likewise. 	*
 libc/machine/xscale/machine: New directory. 	*
 libc/machine/xscale/machine/profile.h: New file.

	* Makefile.am (site.exp): Remove newlib_cflags.  Add
	multibuildtop.
	* testsuite/newlib.locale/UTF-8.c: Change fprintf's to printf's.
	* testsuite/lib/flags.exp: New file.
	* testsuite/lib/newlib.exp: Load flags.exp.
	(newlib_target_compile): Remove libgloss directory references.
	(newlib_init): Remove newlib_cflags references.
---
 newlib/libc/machine/xscale/machine/profile.h | 88 ++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 newlib/libc/machine/xscale/machine/profile.h

(limited to 'newlib/libc/machine')

diff --git a/newlib/libc/machine/xscale/machine/profile.h b/newlib/libc/machine/xscale/machine/profile.h
new file mode 100644
index 000000000..90198ba69
--- /dev/null
+++ b/newlib/libc/machine/xscale/machine/profile.h
@@ -0,0 +1,88 @@
+/* profile.h
+
+   Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
+ 
+   Permission to use, copy, modify, and distribute this software
+   is freely granted, provided that this notice is preserved.  */
+
+#ifndef __XSCALE_PROFILE_H__
+#define __XSCALE_PROFILE_H__
+
+/* FIXME:
+   We need to create a string version of the CPP predefined
+   __USER_LABEL_PREFIX__ macro.  Ideally we would like to
+   so do something like:
+
+     #if  __USER_LABEL_PREFIX__ == _
+
+   but this fails for arm-elf targets because although
+   __USER_LABEL__PREFIX__ is defined, it is not defined to
+   a specific value (even 0) and so the above test fails
+   with:
+   
+      operator '==' has no left operand
+
+  Instead we have to test the CPP predefined __ELF__ and
+  rely upon the *assumption* that ELF targets will not use
+  an underscore prefix and that COFF targets will.  */
+
+#ifdef __ELF__
+#define FOO ""
+#else
+#define FOO "_"
+#endif
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void __attribute__ ((no_instrument_function)) \
+mcount_internal (frompc, selfpc)
+
+/* mcount_internal expects two arguments
+   r0 frompc (return address for function that call function that calls mcount)
+   r1 selfpc (return address for function that called mcount)
+
+   The frompc is extracted from the stack frames. If the code does not
+   generate stack frames, then mcount cannot extract this
+   information. Thus, the -fomit-frame-pointer optimization cannot be
+   used if a call graph information is required.
+
+   Due to optimizations mcount doesn't set up a new fp. mcount has the fp
+   of the calling function.
+
+   r0 frompc is from the current frame
+   r1 selfpc can be obtained directly from lr.  */
+
+#ifdef __thumb__
+#define MCOUNT					\
+void __attribute__ ((naked))			\
+     __attribute__ ((no_instrument_function))	\
+mcount (void)					\
+{						\
+  __asm__("push {r0, r1, r2, r3, lr};"		\
+	  "add r0, r7, #0;"			\
+	  "beq 1f;"				\
+	  "sub r0, r0, #4;"			\
+	  "ldr r0, [r0];"			\
+	  "1: mov r1, lr;"			\
+	  "bl " FOO "mcount_internal ;"		\
+	  "pop {r0, r1, r2, r3, pc};"		\
+	);					\
+}
+#else
+#define MCOUNT					\
+void __attribute__ ((naked))			\
+     __attribute__ ((no_instrument_function))	\
+mcount (void)					\
+{						\
+  __asm__("stmdb sp!, {r0, r1, r2, r3, lr};"	\
+	  "movs r0, fp;"			\
+	  "ldrne r0, [r0, #-4];"		\
+	  "mov r1, lr;"				\
+	  "bl " FOO "mcount_internal ;" 	\
+          "ldmia sp!, {r0, r1, r2, r3, pc};"	\
+	);					\
+}
+#endif
+
+#define FUNCTION_ALIGNMENT 2
+
+#endif /* !__XSCALE_PROFILE_H__ */
-- 
cgit v1.2.3