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make prof work on linux

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R=r
DELTA=18  (11 added, 1 deleted, 6 changed)
OCL=15752
CL=15755
This commit is contained in:
Russ Cox 2008-09-24 11:07:21 -07:00
parent c79dffd5ef
commit 3f106f976a
1 changed files with 16 additions and 6 deletions
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22
src/cmd/prof/main.c
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@ -3,10 +3,10 @@
// license that can be found in the LICENSE file.
#include <u.h>
#include <time.h>
#include <libc.h>
#include <bio.h>
#include <ctype.h>
#include <time.h>
#include <ureg_amd64.h>
#include <mach_amd64.h>
@ -88,14 +88,18 @@ regprint(void)
}
int
sample()
sample(void)
{
int i;
static int n;
n++;
ctlproc(pid, "stop");
for(i = 0; i < sizeof ureg; i+=8) {
if(get8(map, (uvlong)i, &((uvlong*)&ureg)[i/8]) < 0) {
fprint(2, "prof: can't read registers at %d: %r\n", i);
if(n == 1)
fprint(2, "prof: can't read registers at %d: %r\n", i);
ctlproc(pid, "start");
return 0;
}
}
@ -106,9 +110,13 @@ sample()
uvlong nextpc;
void
ptrace(Map *map, uvlong pc, uvlong sp, Symbol *sym)
xptrace(Map *map, uvlong pc, uvlong sp, Symbol *sym)
{
char buf[1024];
if(sym == nil){
print("syms\n");
return;
}
if(nextpc == 0)
nextpc = sym->value;
print("%s(", sym->name);
@ -128,7 +136,7 @@ stacktracepcsp(uvlong pc, uvlong sp)
nextpc = 0;
if(machdata->ctrace==nil)
fprint(2, "no machdata->ctrace\n");
else if(machdata->ctrace(map, pc, sp, 0, ptrace) <= 0)
else if(machdata->ctrace(map, pc, sp, 0, xptrace) <= 0)
fprint(2, "no stack frame: pc=%#p sp=%#p\n", pc, sp);
}
@ -172,7 +180,8 @@ printpc(uvlong pc, uvlong sp)
}
}
void samples()
void
samples(void)
{
int msec;
struct timespec req;
@ -334,6 +343,7 @@ main(int argc, char *argv[])
fprint(2, "prof: crack header for %s: %r\n", file);
exit(1);
}
ctlproc(pid, "start");
samples();
detachproc(map);
dumphistogram();