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#include <u.h>
#include <libc.h>
#include <mach.h>
char *coredir(void);
void coreall(char*);
void corefile(char*, int);
void
usage(void)
{
fprint(2, "usage: core [dir | corefile]...\n");
exits("usage");
}
void
main(int argc, char **argv)
{
int i;
ARGBEGIN{
default:
usage();
}ARGEND
if(argc == 0){
argc++;
*--argv = coredir();
}
for(i=0; i<argc; i++)
coreall(argv[i]);
}
char*
coredir(void)
{
char *dir;
dir = getenv("COREDIR");
if(dir == nil)
dir = ".";
return dir;
}
int
timecmp(const void *va, const void *vb)
{
Dir *a, *b;
a = (Dir*)va;
b = (Dir*)vb;
if(a->mtime < b->mtime)
return 1;
if(a->mtime > b->mtime)
return -1;
return 0;
}
void
coreall(char *name)
{
Dir *d;
int fd, i, n;
char *p;
if((d = dirstat(name)) == nil){
fprint(2, "%s: %r\n", name);
return;
}
if((d->mode&DMDIR) == 0){
free(d);
corefile(name, 1);
return;
}
free(d);
if((fd = open(name, OREAD)) < 0){
fprint(2, "open %s: %r\n", name);
return;
}
n = dirreadall(fd, &d);
qsort(d, n, sizeof(d[0]), timecmp);
for(i=0; i<n; i++){
p = smprint("%s/%s", name, d[i].name);
if(p == nil)
sysfatal("out of memory");
corefile(p, 0);
free(p);
}
}
void
corefile(char *name, int explicit)
{
Fhdr *hdr;
char t[100];
Dir *d;
if((d = dirstat(name)) == nil){
if(explicit)
fprint(2, "%s; %r\n", name);
return;
}
strcpy(t, ctime(d->mtime));
t[strlen(t)-1] = 0; /* newline */
if((hdr = crackhdr(name, OREAD)) == nil){
if(explicit)
fprint(2, "%s: %r\n", name);
return;
}
if(hdr->ftype != FCORE){
uncrackhdr(hdr);
if(explicit)
fprint(2, "%s: not a core file\n", name);
return;
}
print("stack %s\n\t# %s\n\t# %s\n", name, t, hdr->cmdline);
uncrackhdr(hdr);
}
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