114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
/* This file implements entry points for system profiling.
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*
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* The entry points in this file are:
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* do_sprofile: start/stop statistical profiling
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* do_cprofile: get/reset call profiling tables
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*
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* Changes:
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* 14 Aug, 2006 Created (Rogier Meurs)
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*/
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#include <minix/config.h>
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#include <minix/profile.h>
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#include "pm.h"
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#include <sys/wait.h>
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <signal.h>
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#include "mproc.h"
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#include "param.h"
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#if SPROFILE || CPROFILE
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FORWARD _PROTOTYPE( int check_addrs, (int info_size) );
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#endif
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/*===========================================================================*
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* do_sprofile *
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*===========================================================================*/
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PUBLIC int do_sprofile(void)
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{
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#if SPROFILE
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int r;
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switch(m_in.PROF_ACTION) {
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case PROF_START:
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if (r = check_addrs(sizeof(sprof_info_inst))) /* check user pointers */
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return r;
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return sys_sprof(PROF_START, m_in.PROF_MEM_SIZE, m_in.PROF_FREQ,
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who_e, m_in.PROF_CTL_PTR, m_in.PROF_MEM_PTR);
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case PROF_STOP:
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return sys_sprof(PROF_STOP,0,0,0,0,0);
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default:
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return EINVAL;
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}
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#else
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return ENOSYS;
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#endif
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}
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/*===========================================================================*
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* do_cprofile *
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*===========================================================================*/
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PUBLIC int do_cprofile(void)
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{
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#if CPROFILE
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int r;
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switch(m_in.PROF_ACTION) {
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case PROF_GET:
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if (r = check_addrs(sizeof(cprof_info_inst))) /* check user pointers */
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return r;
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return sys_cprof(PROF_GET, m_in.PROF_MEM_SIZE, who_e,
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m_in.PROF_CTL_PTR, m_in.PROF_MEM_PTR);
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case PROF_RESET:
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return sys_cprof(PROF_RESET,0,0,0,0);
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default:
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return EINVAL;
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}
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#else
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return ENOSYS;
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#endif
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}
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#if SPROFILE || CPROFILE
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/*===========================================================================*
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* check_addrs *
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*===========================================================================*/
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PRIVATE int check_addrs(info_size)
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int info_size;
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{
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int r;
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phys_bytes p;
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/* Check if supplied pointers point into user process. */
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if ((r = sys_umap(who_e, D, (vir_bytes) m_in.PROF_CTL_PTR,
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info_size, &p)) != OK) {
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printf("PM: PROFILE: umap failed for process %d\n", who_e);
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return r;
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}
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if ((r =sys_umap(who_e, D, (vir_bytes) m_in.PROF_MEM_PTR,
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m_in.PROF_MEM_SIZE, &p)) != OK) {
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printf("PM: PROFILE: umap failed for process %d\n", who_e);
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return r;
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}
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return 0;
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}
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#endif
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