mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

convert signal numbers

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@328 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-07-13 17:33:54 +00:00
parent c596ed1713
commit 9e5f5284b3
1 changed files with 99 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
linux-user/signal.c
View File

@ -60,44 +60,122 @@ static int signal_pending; /* non zero if a signal may be pending */
static void host_signal_handler(int host_signum, siginfo_t *info,
void *puc);
/* XXX: do it properly */
static uint8_t host_to_target_signal_table[65] = {
[SIGHUP] = TARGET_SIGHUP,
[SIGINT] = TARGET_SIGINT,
[SIGQUIT] = TARGET_SIGQUIT,
[SIGILL] = TARGET_SIGILL,
[SIGTRAP] = TARGET_SIGTRAP,
[SIGABRT] = TARGET_SIGABRT,
[SIGIOT] = TARGET_SIGIOT,
[SIGBUS] = TARGET_SIGBUS,
[SIGFPE] = TARGET_SIGFPE,
[SIGKILL] = TARGET_SIGKILL,
[SIGUSR1] = TARGET_SIGUSR1,
[SIGSEGV] = TARGET_SIGSEGV,
[SIGUSR2] = TARGET_SIGUSR2,
[SIGPIPE] = TARGET_SIGPIPE,
[SIGALRM] = TARGET_SIGALRM,
[SIGTERM] = TARGET_SIGTERM,
#ifdef SIGSTKFLT
[SIGSTKFLT] = TARGET_SIGSTKFLT,
#endif
[SIGCHLD] = TARGET_SIGCHLD,
[SIGCONT] = TARGET_SIGCONT,
[SIGSTOP] = TARGET_SIGSTOP,
[SIGTSTP] = TARGET_SIGTSTP,
[SIGTTIN] = TARGET_SIGTTIN,
[SIGTTOU] = TARGET_SIGTTOU,
[SIGURG] = TARGET_SIGURG,
[SIGXCPU] = TARGET_SIGXCPU,
[SIGXFSZ] = TARGET_SIGXFSZ,
[SIGVTALRM] = TARGET_SIGVTALRM,
[SIGPROF] = TARGET_SIGPROF,
[SIGWINCH] = TARGET_SIGWINCH,
[SIGIO] = TARGET_SIGIO,
[SIGPWR] = TARGET_SIGPWR,
[SIGSYS] = TARGET_SIGSYS,
/* next signals stay the same */
};
static uint8_t target_to_host_signal_table[65];
static inline int host_to_target_signal(int sig)
{
return sig;
return host_to_target_signal_table[sig];
}
static inline int target_to_host_signal(int sig)
{
return sig;
return target_to_host_signal_table[sig];
}
void host_to_target_sigset(target_sigset_t *d, sigset_t *s)
void host_to_target_sigset(target_sigset_t *d, const sigset_t *s)
{
int i;
for(i = 0;i < TARGET_NSIG_WORDS; i++) {
unsigned long sigmask;
uint32_t target_sigmask;
sigmask = ((unsigned long *)s)[0];
target_sigmask = 0;
for(i = 0; i < 32; i++) {
if (sigmask & (1 << i))
target_sigmask |= 1 << (host_to_target_signal(i + 1) - 1);
}
#if TARGET_LONG_BITS == 32 && HOST_LONG_BITS == 32
d->sig[0] = tswapl(target_sigmask);
for(i = 1;i < TARGET_NSIG_WORDS; i++) {
d->sig[i] = tswapl(((unsigned long *)s)[i]);
}
#elif TARGET_LONG_BITS == 32 && HOST_LONG_BITS == 64 && TARGET_NSIG_WORDS == 2
d->sig[0] = tswapl(target_sigmask);
d->sig[1] = tswapl(sigmask >> 32);
#else
#error host_to_target_sigset
#endif
}
void target_to_host_sigset(sigset_t *d, target_sigset_t *s)
void target_to_host_sigset(sigset_t *d, const target_sigset_t *s)
{
int i;
for(i = 0;i < TARGET_NSIG_WORDS; i++) {
unsigned long sigmask;
target_ulong target_sigmask;
target_sigmask = tswapl(s->sig[0]);
sigmask = 0;
for(i = 0; i < 32; i++) {
if (target_sigmask & (1 << i))
sigmask |= 1 << (target_to_host_signal(i + 1) - 1);
}
#if TARGET_LONG_BITS == 32 && HOST_LONG_BITS == 32
((unsigned long *)d)[0] = sigmask;
for(i = 1;i < TARGET_NSIG_WORDS; i++) {
((unsigned long *)d)[i] = tswapl(s->sig[i]);
}
#elif TARGET_LONG_BITS == 32 && HOST_LONG_BITS == 64 && TARGET_NSIG_WORDS == 2
((unsigned long *)d)[0] = sigmask | (tswapl(s->sig[1]) << 32);
#else
#error target_to_host_sigset
#endif /* TARGET_LONG_BITS */
}
void host_to_target_old_sigset(target_ulong *old_sigset,
const sigset_t *sigset)
{
*old_sigset = tswap32(*(unsigned long *)sigset & 0xffffffff);
target_sigset_t d;
host_to_target_sigset(&d, sigset);
*old_sigset = d.sig[0];
}
void target_to_host_old_sigset(sigset_t *sigset,
const target_ulong *old_sigset)
{
sigemptyset(sigset);
*(unsigned long *)sigset = tswapl(*old_sigset);
target_sigset_t d;
int i;
d.sig[0] = *old_sigset;
for(i = 1;i < TARGET_NSIG_WORDS; i++)
d.sig[i] = 0;
target_to_host_sigset(sigset, &d);
}
/* siginfo conversion */
@ -167,8 +245,18 @@ void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo)
void signal_init(void)
{
struct sigaction act;
int i;
int i, j;
/* generate signal conversion tables */
for(i = 1; i <= 64; i++) {
if (host_to_target_signal_table[i] == 0)
host_to_target_signal_table[i] = i;
}
for(i = 1; i <= 64; i++) {
j = host_to_target_signal_table[i];
target_to_host_signal_table[j] = i;
}
/* set all host signal handlers. ALL signals are blocked during
the handlers to serialize them. */
sigfillset(&act.sa_mask);