static int read_sysfs_file(const char *name, char *buf, int size)
{
FILE *f = SAFE_FOPEN(cleanup, name, "r");
char *res = fgets(buf, size, f);
SAFE_FCLOSE(cleanup, f);
return (res) ? 0 : 1;
}
static int read_hugepagesize(void)
{
FILE *fp;
char line[BUFSIZ], buf[BUFSIZ];
int val;
fp = SAFE_FOPEN(cleanup, PATH_MEMINFO, "r");
while (fgets(line, BUFSIZ, fp) != NULL) {
if (sscanf(line, "%64s %d", buf, &val) == 2)
if (strcmp(buf, "Hugepagesize:") == 0) {
SAFE_FCLOSE(cleanup, fp);
return 1024 * val;
}
}
SAFE_FCLOSE(cleanup, fp);
tst_brkm(TBROK, NULL, "can't find \"%s\" in %s",
"Hugepagesize:", PATH_MEMINFO);
}
bool SymbolTable::parse(const char * file, bool offsets)
{
FILE * fd = NULL;
vaddr_t addr;
char type;
char name[128];
int nr_read;
vaddr_t text_start = 0, text_end = 0, init_start = 0, init_end = 0;
if ( NULL == (fd = fopen(file, "r")) )
return false;
while ( true )
{
nr_read = fscanf(fd, "%" SCNx64 " %c %127s", &addr, &type, name);
if ( nr_read != 3 )
{
if ( feof(fd) )
break;
SAFE_FCLOSE(fd);
return false;
}
if ( name[0] == '+' )
{
if ( offsets )
{
insert_xensym(Abstract::xensyms::xensyms, &name[1], addr);
insert_xensym(x86_64::xensyms::xensyms, &name[1], addr);
}
}
else
{
if ( offsets )
{
insert_xensym(Abstract::xensyms::xensyms, name, addr);
insert_xensym(x86_64::xensyms::xensyms, name, addr);
}
if ( ! std::strcmp(name, "_stext") )
text_start = addr;
else if ( ! std::strcmp(name, "_etext") )
text_end = addr;
else if ( ! std::strcmp(name, "_sinittext") )
init_start = addr;
else if ( ! std::strcmp(name, "_einittext") )
init_end = addr;
else if ( ! std::strcmp(name, "hypercall_page") )
this->hypercall_page = addr;
this->insert( new Symbol(addr, type, name) );
}
}
SAFE_FCLOSE(fd);
sort();
if ( text_start == 0 ||
text_end == 0 ||
init_start == 0 ||
init_end == 0 )
{
LOG_INFO("Failed to obtain text section limits\n");
this->can_print = false;
}
else
{
add_text_region(text_start, text_end);
add_text_region(init_start, init_end);
LOG_DEBUG(" text section limits: 0x%016"PRIx64"->0x%016"PRIx64"\n",
text_start, text_end);
LOG_DEBUG(" init section limits: 0x%016"PRIx64"->0x%016"PRIx64"\n",
init_start, init_end);
this->can_print = true;
}
if ( this->hypercall_page == 0 )
this->has_hypercall = false;
else
{
this->has_hypercall = true;
LOG_DEBUG(" hypercall page: 0x%016"PRIx64"->0x%016"PRIx64"\n",
this->hypercall_page, this->hypercall_page+4096);
}
return true;
}