[PATCH]: Use the new f*open_unlocked functions

[Kaveh R. Ghazi]

This patch makes GCC use the new f*open_unlocked functions I propose
adding to libiberty here:
http://gcc.gnu.org/ml/gcc-patches/2005-04/msg01128.html

On top of the existing speedup I get from this patch:
http://gcc.gnu.org/ml/gcc-patches/2005-04/msg00453.html
with the patch below I get an additional 0.25% - 0.5% speedup
compiling dwarf2out.c -> dwarf2out.s at -g -O0 on
i686-unknown-linux-gnu.  I believe we see the additional speedup
because glibc has no fprintf_unlocked and we have quite a few fprintf
statements.

Bootstrapped in conjuction with the above two patches on
x86_64-unknown-linux-gnu, minus java because it dies building libgcj
both with and without my patches.  No regressions.

Okay for mainline?

		Thanks,
		--Kaveh



2005-04-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

fixincludes:
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.
	
gcc:	
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.

libcpp:
	* system.h (fopen, fdopen, freopen): Define these to the unlocked
	libiberty functions.

diff -rup orig/egcc-CVS20050409/fixincludes/system.h egcc-CVS20050409/fixincludes/system.h
--- orig/egcc-CVS20050409/fixincludes/system.h	2005-04-10 09:22:16.463854288 -0400
+++ egcc-CVS20050409/fixincludes/system.h	2005-04-10 10:00:52.484765592 -0400
@@ -38,6 +38,11 @@ Software Foundation, 59 Temple Place - S
 #define NULL 0
 #endif
 
+/* Use the unlocked open routines from libiberty.  */
+#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
+#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
+#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
+
 /* fixincludes is not a multi-threaded application and therefore we
    do not have to use the locking functions.  In fact, using the locking
    functions can cause the compiler to be significantly slower under
diff -rup orig/egcc-CVS20050409/gcc/system.h egcc-CVS20050409/gcc/system.h
--- orig/egcc-CVS20050409/gcc/system.h	2005-04-10 09:22:16.464854136 -0400
+++ egcc-CVS20050409/gcc/system.h	2005-04-10 10:00:35.768306880 -0400
@@ -46,6 +46,11 @@ Software Foundation, 59 Temple Place - S
 #define NULL 0
 #endif
 
+/* Use the unlocked open routines from libiberty.  */
+#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
+#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
+#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
+
 /* The compiler is not a multi-threaded application and therefore we
    do not have to use the locking functions.  In fact, using the locking
    functions can cause the compiler to be significantly slower under
diff -rup orig/egcc-CVS20050409/libcpp/system.h egcc-CVS20050409/libcpp/system.h
--- orig/egcc-CVS20050409/libcpp/system.h	2005-04-10 09:22:16.465853984 -0400
+++ egcc-CVS20050409/libcpp/system.h	2005-04-10 10:01:01.194441520 -0400
@@ -38,6 +38,11 @@ Software Foundation, 59 Temple Place - S
 #define NULL 0
 #endif
 
+/* Use the unlocked open routines from libiberty.  */
+#define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
+#define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
+#define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
+
 /* The compiler is not a multi-threaded application and therefore we
    do not have to use the locking functions.  In fact, using the locking
    functions can cause the compiler to be significantly slower under