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Port crasher to FreeBSD.

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This commit is contained in:
Konstantin Belousov 2012-06-18 15:19:24 +03:00 committed by Arun Sharma
parent 21266608cc
commit 0f6c8313b7
1 changed files with 49 additions and 1 deletions
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50
tests/crasher.c
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@ -3,11 +3,17 @@
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#endif
void a(void) __attribute__((noinline));
void b(int x) __attribute__((noinline));
#ifdef __linux__
#if defined(__linux__)
void write_maps(char *fname)
{
char buf[512], path[128];
@ -35,6 +41,48 @@ void write_maps(char *fname)
fclose(out);
fclose(maps);
}
#elif defined(__FreeBSD__)
void
write_maps(char *fname)
{
FILE *out;
char *buf, *bp, *eb;
struct kinfo_vmentry *kv;
int mib[4], error;
size_t len;
out = fopen(fname, "w");
if (out == NULL)
exit(EXIT_FAILURE);
len = 0;
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_VMMAP;
mib[3] = getpid();
error = sysctl(mib, 4, NULL, &len, NULL, 0);
if (error == -1)
exit(EXIT_FAILURE);
len = len * 4 / 3;
buf = malloc(len);
if (buf == NULL)
exit(EXIT_FAILURE);
error = sysctl(mib, 4, buf, &len, NULL, 0);
if (error == -1)
exit(EXIT_FAILURE);
for (bp = buf, eb = buf + len; bp < eb; bp += kv->kve_structsize) {
kv = (struct kinfo_vmentry *)(uintptr_t)bp;
if (kv->kve_type == KVME_TYPE_VNODE &&
(kv->kve_protection & KVME_PROT_EXEC) != 0) {
fprintf(out, "0x%jx:%s ", kv->kve_start, kv->kve_path);
}
}
fprintf(out, "\n");
fclose(out);
free(buf);
}
#else
#error Port me
#endif