Differential D29529 Diff 86708 sys/i386/include/profile.h

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sys/i386/include/profile.h

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*		*
* @(#)profile.h 8.1 (Berkeley) 6/11/93		* @(#)profile.h 8.1 (Berkeley) 6/11/93
* $FreeBSD$		* $FreeBSD$
*/		*/

#ifndef _MACHINE_PROFILE_H_		#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_		#define _MACHINE_PROFILE_H_

#ifndef _SYS_CDEFS_H_		#ifndef _KERNEL
#error this file needs sys/cdefs.h as a prerequisite
#endif

#ifdef _KERNEL		#include <sys/cdefs.h>

/*
* Config generates something to tell the compiler to align functions on 16
* byte boundaries. A strict alignment is good for keeping the tables small.
*/
#define FUNCTION_ALIGNMENT 16

/*
* The kernel uses assembler stubs instead of unportable inlines.
* This is mainly to save a little time when profiling is not enabled,
* which is the usual case for the kernel.
*/
#define _MCOUNT_DECL void mcount
#define MCOUNT

#ifdef GUPROF
#define MCOUNT_DECL(s)
#define MCOUNT_ENTER(s)
#define MCOUNT_EXIT(s)
#ifdef __GNUCLIKE_ASM
#define MCOUNT_OVERHEAD(label) \
__asm __volatile("pushl %0; call __mcount; popl %%ecx" \
: \
: "i" (label) \
: "ax", "dx", "cx", "memory")
#define MEXITCOUNT_OVERHEAD() \
__asm __volatile("call .mexitcount; 1:" \
: : \
: "cx", "memory")
#define MEXITCOUNT_OVERHEAD_GETLABEL(labelp) \
__asm __volatile("movl $1b,%0" : "=rm" (labelp))
#else
#error
#endif /* !__GNUCLIKE_ASM */
#else /* !GUPROF */
#define MCOUNT_DECL(s) register_t s;
#ifdef SMP
extern int mcount_lock;
#define MCOUNT_ENTER(s) { s = intr_disable(); \
while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \
/* nothing */ ; }
#define MCOUNT_EXIT(s) { atomic_store_rel_int(&mcount_lock, 0); \
intr_restore(s); }
#else
#define MCOUNT_ENTER(s) { s = intr_disable(); }
#define MCOUNT_EXIT(s) (intr_restore(s))
#endif
#endif /* GUPROF */

void bintr(void);
void btrap(void);
void eintr(void);
#if 0
void end_exceptions(void);
void start_exceptions(void);
#else
#include <machine/pmc_mdep.h> /* XXX */
#endif
void user(void);

#include <machine/md_var.h> /* XXX for setidt_disp */

#define MCOUNT_DETRAMP(pc) do { \
if ((pc) >= (uintfptr_t)start_exceptions + setidt_disp && \
(pc) < (uintfptr_t)end_exceptions + setidt_disp) \
(pc) -= setidt_disp; \
} while (0)

#define MCOUNT_FROMPC_INTR(pc) \
((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ? \
((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr : \
(uintfptr_t)btrap) : ~0U)

#define MCOUNT_USERPC ((uintfptr_t)user)

#else /* !_KERNEL */

#define FUNCTION_ALIGNMENT 4		#define FUNCTION_ALIGNMENT 4

#define _MCOUNT_DECL static __inline void _mcount		#define _MCOUNT_DECL static __inline void _mcount

#ifdef __GNUCLIKE_ASM		#ifdef __GNUCLIKE_ASM
#define MCOUNT \		#define MCOUNT \
void \		void \
mcount() \		mcount() \
Show All 26 Lines	mcount() \
__asm("" : : "c" (ecx)); \		__asm("" : : "c" (ecx)); \
}		}
#else /* !__GNUCLIKE_ASM */		#else /* !__GNUCLIKE_ASM */
#define MCOUNT		#define MCOUNT
#endif /* __GNUCLIKE_ASM */		#endif /* __GNUCLIKE_ASM */

typedef u_int uintfptr_t;		typedef u_int uintfptr_t;

#endif /* _KERNEL */

/*		/*
* An unsigned integral type that can hold non-negative difference between		* An unsigned integral type that can hold non-negative difference between
* function pointers.		* function pointers.
*/		*/
typedef u_int fptrdiff_t;		typedef u_int fptrdiff_t;

#ifdef _KERNEL

void mcount(uintfptr_t frompc, uintfptr_t selfpc);

#else /* !_KERNEL */

#include <sys/cdefs.h>

__BEGIN_DECLS		__BEGIN_DECLS
#ifdef __GNUCLIKE_ASM		#ifdef __GNUCLIKE_ASM
void mcount(void) __asm(".mcount");		void mcount(void) __asm(".mcount");
#endif		#endif
__END_DECLS		__END_DECLS

#endif /* _KERNEL */		#endif /* !_KERNEL */

#endif /* !_MACHINE_PROFILE_H_ */		#endif /* !_MACHINE_PROFILE_H_ */