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- Add bits for userland profiling. For sun4u this is compile-tested only.

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- Replace magic 14 with PIL_TICK.
This commit is contained in:
Marius Strobl 2007-05-11 23:43:55 +00:00
parent 2308d23a4e
commit ac474f9545
3 changed files with 73 additions and 8 deletions
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1
lib/libc/sparc64/Symbol.map
View File

@ -11,6 +11,7 @@ FBSD_1.0 {
/* PSEUDO syscalls */
_exit;
_mcount;
_setjmp;
_longjmp;
fabs;

40
sys/sparc64/include/profile.h
View File

@ -32,18 +32,24 @@
#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_
#define FUNCTION_ALIGNMENT 32
#define _MCOUNT_DECL void mcount
#define MCOUNT
#if !defined(_KERNEL) && !defined(_SYS_CDEFS_H_)
#error this file needs sys/cdefs.h as a prerequisite
#endif
#define FUNCTION_ALIGNMENT 32
typedef u_long fptrdiff_t;
#ifdef _KERNEL
#include <machine/cpufunc.h>
#include <machine/intr_machdep.h>
#define _MCOUNT_DECL void mcount
#define MCOUNT
#define MCOUNT_DECL(s) register_t s;
#define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, 14)
#define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, PIL_TICK)
#define MCOUNT_EXIT(s) wrpr(pil, 0, s)
void bintr(void);
@ -65,6 +71,32 @@ void mcount(uintfptr_t frompc, uintfptr_t selfpc);
typedef u_long uintfptr_t;
#define _MCOUNT_DECL static __inline void __mcount
#ifdef __GNUCLIKE_ASM
#define MCOUNT \
void \
_mcount() \
{ \
uintfptr_t frompc, selfpc; \
\
/* \
* Find the return address for mcount, \
* and the return address for mcount's caller. \
* \
* selfpc = pc pushed by call to mcount \
*/ \
__asm("add %%o7, 8, %0" : "=r" (selfpc)); \
/* \
* frompc = pc pushed by call to mcount's caller. \
*/ \
__asm("add %%i7, 8, %0" : "=r" (frompc)); \
__mcount(frompc, selfpc); \
}
#else /* !__GNUCLIKE_ASM */
#define MCOUNT
#endif /* __GNUCLIKE_ASM */
#endif /* _KERNEL */
#endif /* !_MACHINE_PROFILE_H_ */

40
sys/sun4v/include/profile.h
View File

@ -32,18 +32,24 @@
#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_
#define FUNCTION_ALIGNMENT 32
#define _MCOUNT_DECL void mcount
#define MCOUNT
#if !defined(_KERNEL) && !defined(_SYS_CDEFS_H_)
#error this file needs sys/cdefs.h as a prerequisite
#endif
#define FUNCTION_ALIGNMENT 32
typedef u_long fptrdiff_t;
#ifdef _KERNEL
#include <machine/cpufunc.h>
#include <machine/intr_machdep.h>
#define _MCOUNT_DECL void mcount
#define MCOUNT
#define MCOUNT_DECL(s) register_t s;
#define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, 14)
#define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, PIL_TICK)
#define MCOUNT_EXIT(s) wrpr(pil, 0, s)
void bintr(void);
@ -65,6 +71,32 @@ void mcount(uintfptr_t frompc, uintfptr_t selfpc);
typedef u_long uintfptr_t;
#define _MCOUNT_DECL static __inline void __mcount
#ifdef __GNUCLIKE_ASM
#define MCOUNT \
void \
_mcount() \
{ \
uintfptr_t frompc, selfpc; \
\
/* \
* Find the return address for mcount, \
* and the return address for mcount's caller. \
* \
* selfpc = pc pushed by call to mcount \
*/ \
__asm("add %%o7, 8, %0" : "=r" (selfpc)); \
/* \
* frompc = pc pushed by call to mcount's caller. \
*/ \
__asm("add %%i7, 8, %0" : "=r" (frompc)); \
__mcount(frompc, selfpc); \
}
#else /* !__GNUCLIKE_ASM */
#define MCOUNT
#endif /* __GNUCLIKE_ASM */
#endif /* _KERNEL */
#endif /* !_MACHINE_PROFILE_H_ */