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done a dozen of randconfig test. guess what? ALL failed...

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these are resulting fixes
This commit is contained in:
Denis Vlasenko
2006-12-30 17:57:03 +00:00
parent b5a122b6f9
commit 3bba545a54
11 changed files with 71 additions and 43 deletions
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32
miscutils/taskset.c
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@ -8,14 +8,14 @@
#include "busybox.h"
#include <sched.h>
#include <unistd.h>
#include <getopt.h> /* optind */
#if ENABLE_FEATURE_TASKSET_FANCY
#define TASKSET_PRINTF_MASK "%s"
#define from_cpuset(x) __from_cpuset(&x)
/* craft a string from the mask */
static char *__from_cpuset(cpu_set_t *mask) {
static char *__from_cpuset(cpu_set_t *mask)
{
int i;
char *ret = 0, *str = xzalloc(9);
@ -34,22 +34,24 @@ static char *__from_cpuset(cpu_set_t *mask) {
}
#else
#define TASKSET_PRINTF_MASK "%x"
#define from_cpuset(mask) mask
/* (void*) cast is for battling gcc: */
/* "dereferencing type-punned pointer will break strict-aliasing rules" */
#define from_cpuset(mask) (*(unsigned*)(void*)&(mask))
#endif
#define TASKSET_OPT_p (1)
#define OPT_p 1
int taskset_main(int argc, char** argv)
{
cpu_set_t mask, new_mask;
pid_t pid = 0;
unsigned long ul;
unsigned opt;
const char *state = "current\0new";
char *p_opt = NULL, *aff = NULL;
ul = getopt32(argc, argv, "+p:", &p_opt);
opt = getopt32(argc, argv, "+p:", &p_opt);
if (ul & TASKSET_OPT_p) {
if (opt & OPT_p) {
if (argc == optind+1) { /* -p <aff> <pid> */
aff = p_opt;
p_opt = argv[optind];
@ -70,19 +72,19 @@ int taskset_main(int argc, char** argv)
}
}
if (ul & TASKSET_OPT_p) {
print_aff:
if (sched_getaffinity(pid, sizeof (mask), &mask) < 0)
bb_perror_msg_and_die("Failed to %cet pid %d's affinity", 'g', pid);
if (opt & OPT_p) {
print_aff:
if (sched_getaffinity(pid, sizeof(mask), &mask) < 0)
bb_perror_msg_and_die("failed to %cet pid %d's affinity", 'g', pid);
printf("pid %d's %s affinity mask: "TASKSET_PRINTF_MASK"\n",
pid, state, from_cpuset(mask));
if (!*argv) /* no new affinity given or we did print already, done. */
return EXIT_SUCCESS;
}
if (sched_setaffinity(pid, sizeof (new_mask), &new_mask))
bb_perror_msg_and_die("Failed to %cet pid %d's affinity", 's', pid);
if (ul & TASKSET_OPT_p) {
if (sched_setaffinity(pid, sizeof(new_mask), &new_mask))
bb_perror_msg_and_die("failed to %cet pid %d's affinity", 's', pid);
if (opt & OPT_p) {
state += 8;
++argv;
goto print_aff;
@ -91,6 +93,6 @@ print_aff:
execvp(*argv, argv);
bb_perror_msg_and_die("%s", *argv);
}
#undef TASKSET_OPT_p
#undef OPT_p
#undef TASKSET_PRINTF_MASK
#undef from_cpuset