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author | joerg <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
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committer | joerg <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
commit | c85a3e95f78bb183ec62ae6ef948265e7ade6b7a (patch) | |
tree | 69c98a86a28838e983d8eca9ba158f46450df8c1 /sys/amd64/include/cpufunc.h | |
parent | 2307c11d0fa1ac2133cff99d6c1a90c711b15f61 (diff) | |
download | FreeBSD-src-c85a3e95f78bb183ec62ae6ef948265e7ade6b7a.zip FreeBSD-src-c85a3e95f78bb183ec62ae6ef948265e7ade6b7a.tar.gz |
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
Diffstat (limited to 'sys/amd64/include/cpufunc.h')
-rw-r--r-- | sys/amd64/include/cpufunc.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h index e558858..4c596a0 100644 --- a/sys/amd64/include/cpufunc.h +++ b/sys/amd64/include/cpufunc.h @@ -39,6 +39,10 @@ #ifndef _MACHINE_CPUFUNC_H_ #define _MACHINE_CPUFUNC_H_ +#ifndef _SYS_CDEFS_H_ +#error this file needs sys/cdefs.h as a prerequisite +#endif + struct region_descriptor; #define readb(va) (*(volatile u_int8_t *) (va)) @@ -51,7 +55,7 @@ struct region_descriptor; #define writel(va, d) (*(volatile u_int32_t *) (va) = (d)) #define writeq(va, d) (*(volatile u_int64_t *) (va) = (d)) -#ifdef __GNUC__ +#if defined(__GNUCLIKE_ASM) && defined(__CC_SUPPORTS___INLINE) static __inline void breakpoint(void) @@ -152,12 +156,12 @@ halt(void) __asm __volatile("hlt"); } -#if __GNUC__ < 2 +#if !defined(__GNUCLIKE_BUILTIN_CONSTANT_P) || __GNUCLIKE_ASM < 3 #define inb(port) inbv(port) #define outb(port, data) outbv(port, data) -#else /* __GNUC >= 2 */ +#else /* __GNUCLIKE_BUILTIN_CONSTANT_P && __GNUCLIKE_ASM >= 3 */ /* * The following complications are to get around gcc not having a @@ -204,7 +208,7 @@ outbc(u_int port, u_char data) __asm __volatile("outb %0,%1" : : "a" (data), "id" ((u_short)(port))); } -#endif /* __GNUC <= 2 */ +#endif /* __GNUCLIKE_BUILTIN_CONSTANT_P */ static __inline u_char inbv(u_int port) @@ -696,7 +700,7 @@ intr_restore(register_t rflags) write_rflags(rflags); } -#else /* !__GNUC__ */ +#else /* !(__GNUCLIKE_ASM && __CC_SUPPORTS___INLINE) */ int breakpoint(void); u_int bsfl(u_int mask); @@ -761,7 +765,7 @@ void wbinvd(void); void write_rflags(u_int rf); void wrmsr(u_int msr, u_int64_t newval); -#endif /* __GNUC__ */ +#endif /* __GNUCLIKE_ASM && __CC_SUPPORTS___INLINE */ void reset_dbregs(void); |