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authorJoerg Wunsch <joerg@FreeBSD.org>2005-03-02 21:33:29 +0000
committerJoerg Wunsch <joerg@FreeBSD.org>2005-03-02 21:33:29 +0000
commita5f50ef9e43b28e15a7e2a2aec73754456619f17 (patch)
tree69c98a86a28838e983d8eca9ba158f46450df8c1 /sys/amd64/include/profile.h
parentf685f62c9869f2c8181041ae3e3d87a09d2d3fbf (diff)
downloadsrc-a5f50ef9e43b28e15a7e2a2aec73754456619f17.tar.gz
src-a5f50ef9e43b28e15a7e2a2aec73754456619f17.zip
netchild's mega-patch to isolate compiler dependencies into a central
place. This moves the dependency on GCC's and other compiler's features into the central sys/cdefs.h file, while the individual source files can then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42. By now, GCC and ICC (the Intel compiler) have been actively tested on IA32 platforms by netchild. Extension to other compilers is supposed to be possible, of course. Submitted by: netchild Reviewed by: various developers on arch@, some time ago
Notes
Notes: svn path=/head/; revision=143063
Diffstat (limited to 'sys/amd64/include/profile.h')
-rw-r--r--sys/amd64/include/profile.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/sys/amd64/include/profile.h b/sys/amd64/include/profile.h
index ecd34264dcd3..93e8614523f3 100644
--- a/sys/amd64/include/profile.h
+++ b/sys/amd64/include/profile.h
@@ -33,6 +33,10 @@
#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_
+#ifndef _SYS_CDEFS_H_
+#error this file needs sys/cdefs.h as a prerequisite
+#endif
+
#ifdef _KERNEL
/*
@@ -53,7 +57,7 @@
#define MCOUNT_DECL(s)
#define MCOUNT_ENTER(s)
#define MCOUNT_EXIT(s)
-#ifdef __GNUC__
+#ifdef __GNUCLIKE_ASM
#define MCOUNT_OVERHEAD(label) \
__asm __volatile("pushq %0; call __mcount; popq %%rcx" \
: \
@@ -70,8 +74,8 @@
#define MEXITCOUNT_OVERHEAD()
#define MEXITCOUNT_OVERHEAD_GETLABEL()
#else
-#error
-#endif /* __GNUC */
+#error this file needs to be ported to your compiler
+#endif /* __GNUCLIKE_ASM */
#else /* !GUPROF */
#define MCOUNT_DECL(s) u_long s;
#ifdef SMP
@@ -108,7 +112,7 @@ void user(void);
static void _mcount(uintfptr_t frompc, uintfptr_t selfpc) __used; \
static void _mcount
-#ifdef __GNUC__
+#ifdef __GNUCLIKE_ASM
#define MCOUNT __asm(" \n\
.globl .mcount \n\
.type .mcount @function \n\
@@ -166,13 +170,13 @@ mcount() \
_mcount(frompc, selfpc); \
}
#endif
-#else /* !__GNUC__ */
+#else /* !__GNUCLIKE_ASM */
#define MCOUNT \
void \
mcount() \
{ \
}
-#endif /* __GNUC__ */
+#endif /* __GNUCLIKE_ASM */
typedef u_long uintfptr_t;
@@ -193,7 +197,7 @@ void mcount(uintfptr_t frompc, uintfptr_t selfpc);
#include <sys/cdefs.h>
__BEGIN_DECLS
-#ifdef __GNUC__
+#ifdef __GNUCLIKE_ASM
void mcount(void) __asm(".mcount");
#endif
__END_DECLS