> I use git svn instruction for getting the repository. > it should be no differneces with git svn command. > Anyway, I will use svn command to redo again. hi ivo: after I use svn instead of git svn, I can successfully compile valgrind trunk. it seems git svn not handle external link ^^
>>> >> I think there is a bug in the massif logic to make a peak detailed >>> >> snapshot at the moment of munmap: it should try to produce a peak >>> >> snapshot when releasing the first page of munmap, not when releasing >>> >> the last page. >>> > revision 15745 introduces a test for this case, and fixes the bug. hi Philippe: I compile the trunk valgrind with ur patch, but I still cannot see the location of mmap I put in the c file, even I set the --threshold=0.0. (I attach the c file and mass output as well) BTW, would you please let me know how to compile and run the programs in massif/tests? appreciate all your kind help,
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
void g(void)
{
int* test1;
test1 = malloc(4000);
}
void f(void)
{
int* test2;
test2 = malloc(2000);
g();
}
int main (int argc, char *argv[])
{
struct stat sb;
off_t len;
char *p;
int fd;
if (argc < 2) {
fprintf (stderr, "usage: %s <file>\n", argv[0]);
return 1;
}
fd = open (argv[1], O_RDONLY);
if (fd == -1) {
perror ("open");
return 1;
}
if (fstat (fd, &sb) == -1) {
perror ("fstat");
return 1;
}
if (!S_ISREG (sb.st_mode)) {
fprintf (stderr, "%s is not a file\n", argv[1]);
return 1;
}
f();
g();
p = mmap (0, sb.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (p == MAP_FAILED) {
perror ("mmap");
return 1;
}
if (close (fd) == -1) {
perror ("close");
return 1;
}
for (len = 0; len < 128; len++){
putchar (p[len]);
}
printf("\n");
if (munmap (p, sb.st_size) == -1) {
perror ("munmap");
return 1;
}
printf("\n");
return 0;
}
mmap_6273
Description: Binary data
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