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The ELF loader is basically functional (needs more testing)

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git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5265 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-10-27 00:04:47 +00:00
parent 7bc6a69f46
commit 1f1319f25b
25 changed files with 291 additions and 298 deletions
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apps/examples/nxflat/tests/mksymtab.sh
+1 -1
View File
@@ -1,6 +1,6 @@
#!/bin/bash
usage="Usage: %0 <test-dir-path>"
usage="Usage: $0 <test-dir-path>"
dir=$1
if [ -z "$dir" ]; then
apps/examples/nxflat/tests/signal/signal.c
+63 -107
View File
@@ -1,7 +1,7 @@
/****************************************************************************
* examples/nxflat/tests/signal/signal.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@@ -67,73 +67,41 @@ static int sigusr2_rcvd = 0;
****************************************************************************/
/****************************************************************************
* Name: sigusr1_sighandler
****************************************************************************/
/* NOTE: it is necessary for functions that are referred to by function pointers
* pointer to be declared with global scope (at least for ARM). Otherwise,
* a relocation type that is not supported by NXFLAT is generated by GCC.
*/
void sigusr1_sighandler(int signo)
{
printf("sigusr1_sighandler: Received SIGUSR1, signo=%d\n", signo);
sigusr1_rcvd = 1;
}
/****************************************************************************
* Name: sigusr2_sigaction
* Name: siguser_action
***************************************************************************/
/* NOTE: it is necessary for functions that are referred to by function pointers
* pointer to be declared with global scope (at least for ARM). Otherwise,
* a relocation type that is not supported by NXFLAT is generated by GCC.
* a relocation type that is not supported by ELF is generated by GCC.
*/
#ifdef __USE_POSIX199309
void sigusr2_sigaction(int signo, siginfo_t *siginfo, void *arg)
void siguser_action(int signo, siginfo_t *siginfo, void *arg)
{
printf("sigusr2_sigaction: Received SIGUSR2, signo=%d siginfo=%p arg=%p\n",
printf("siguser_action: Received signo=%d siginfo=%p arg=%p\n",
signo, siginfo, arg);
#ifdef HAVE_SIGQUEUE
if (signo == SIGUSR1)
{
printf(" SIGUSR1 received\n");
sigusr2_rcvd = 1;
}
else if (signo == SIGUSR2)
{
printf(" SIGUSR2 received\n");
sigusr1_rcvd = 2;
}
else
{
printf(" ERROR: Unexpected signal\n");
}
if (siginfo)
{
printf("siginfo:\n");
printf(" si_signo = %d\n", siginfo->si_signo);
printf(" si_errno = %d\n", siginfo->si_errno);
printf(" si_code = %d\n", siginfo->si_code);
printf(" si_pid = %d\n", siginfo->si_pid);
printf(" si_uid = %d\n", siginfo->si_uid);
printf(" si_status = %d\n", siginfo->si_status);
printf(" si_utime = %ld\n", (long)siginfo->si_utime);
printf(" si_stime = %ld\n", (long)siginfo->si_stime);
printf(" si_value = %d\n", siginfo->si_value.sival_int);
printf(" si_int = %d\n", siginfo->si_int);
printf(" si_ptr = %p\n", siginfo->si_ptr);
printf(" si_addr = %p\n", siginfo->si_addr);
printf(" si_band = %ld\n", siginfo->si_band);
printf(" si_fd = %d\n", siginfo->si_fd);
}
#endif
sigusr2_rcvd = 1;
}
#else
void sigusr2_sigaction(int signo)
{
printf("sigusr2_sigaction: Received SIGUSR2, signo=%d\n", signo);
sigusr2_rcvd = 1;
}
#endif
/****************************************************************************
* Name: sigusr2_sighandler
****************************************************************************/
static void sigusr2_sighandler(int signo)
{
printf("sigusr2_sighandler: Received SIGUSR2, signo=%d\n", signo);
sigusr2_rcvd = 1;
}
/****************************************************************************
@@ -147,39 +115,36 @@ static void sigusr2_sighandler(int signo)
int main(int argc, char **argv)
{
struct sigaction act;
struct sigaction oact;
void (*old_sigusr1_sighandler)(int signo);
void (*old_sigusr2_sighandler)(int signo);
struct sigaction oact1;
struct sigaction oact2;
pid_t mypid = getpid();
#if defined(__USE_POSIX199309) && defined(HAVE_SIGQUEUE)
sigval_t sigval;
#endif
union sigval sigval;
int status;
printf("Setting up signal handlers from pid=%d\n", mypid);
/* Set up so that sigusr1_sighandler will respond to SIGUSR1 */
old_sigusr1_sighandler = signal(SIGUSR1, sigusr1_sighandler);
if (old_sigusr1_sighandler == SIG_ERR)
{
fprintf(stderr, "Failed to install SIGUSR1 handler, errno=%d\n",
errno);
exit(1);
}
printf("Old SIGUSR1 sighandler at %p\n", old_sigusr1_sighandler);
printf("New SIGUSR1 sighandler at %p\n", sigusr1_sighandler);
/* Set up so that sigusr2_sigaction will respond to SIGUSR2 */
/* Set up so that siguser_action will respond to SIGUSR1 */
memset(&act, 0, sizeof(struct sigaction));
act.sa_sigaction = sigusr2_sigaction;
act.sa_sigaction = siguser_action;
act.sa_flags = SA_SIGINFO;
(void)sigemptyset(&act.sa_mask);
status = sigaction(SIGUSR2, &act, &oact);
status = sigaction(SIGUSR1, &act, &oact1);
if (status != 0)
{
fprintf(stderr, "Failed to install SIGUSR1 handler, errno=%d\n",
errno);
exit(2);
}
printf("Old SIGUSR1 sighandler at %p\n", oact1.sa_handler);
printf("New SIGUSR1 sighandler at %p\n", siguser_action);
/* Set up so that siguser_action will respond to SIGUSR2 */
status = sigaction(SIGUSR2, &act, &oact2);
if (status != 0)
{
fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
@@ -187,18 +152,19 @@ int main(int argc, char **argv)
exit(2);
}
printf("Old SIGUSR2 sighandler at %p\n", oact.sa_handler);
printf("New SIGUSR2 sighandler at %p\n", sigusr2_sigaction);
printf("Raising SIGUSR1 from pid=%d\n", mypid);
printf("Old SIGUSR2 sighandler at %p\n", oact2.sa_handler);
printf("New SIGUSR2 sighandler at %p\n", siguser_action);
printf("Raising SIGUSR1 from pid=%d\n", mypid);
fflush(stdout); usleep(SHORT_DELAY);
/* Send SIGUSR1 to ourselves via raise() */
/* Send SIGUSR1 to ourselves via kill() */
status = raise(SIGUSR1);
printf("Kill-ing SIGUSR1 from pid=%d\n", mypid);
status = kill(0, SIGUSR1);
if (status != 0)
{
fprintf(stderr, "Failed to raise SIGUSR1, errno=%d\n", errno);
fprintf(stderr, "Failed to kill SIGUSR1, errno=%d\n", errno);
exit(3);
}
@@ -212,14 +178,14 @@ int main(int argc, char **argv)
fprintf(stderr, "SIGUSR1 not received\n");
exit(4);
}
sigusr1_rcvd = 0;
/* Send SIGUSR2 to ourselves */
printf("Killing SIGUSR2 from pid=%d\n", mypid);
printf("sigqueue-ing SIGUSR2 from pid=%d\n", mypid);
fflush(stdout); usleep(SHORT_DELAY);
#if defined(__USE_POSIX199309) && defined(HAVE_SIGQUEUE)
/* Send SIGUSR2 to ourselves via sigqueue() */
sigval.sival_int = 87;
@@ -231,20 +197,8 @@ int main(int argc, char **argv)
}
usleep(SHORT_DELAY);
printf("SIGUSR2 queued from pid=%d, sigval=97\n", mypid);
#else
/* Send SIGUSR2 to ourselves via kill() */
printf("SIGUSR2 queued from pid=%d, sigval=87\n", mypid);
status = kill(mypid, SIGUSR2);
if (status != 0)
{
fprintf(stderr, "Failed to kill SIGUSR2, errno=%d\n", errno);
exit(5);
}
usleep(SHORT_DELAY);
printf("SIGUSR2 killed from pid=%d\n", mypid);
#endif
/* Verify that SIGUSR2 was received */
if (sigusr2_rcvd == 0)
@@ -252,32 +206,33 @@ int main(int argc, char **argv)
fprintf(stderr, "SIGUSR2 not received\n");
exit(6);
}
sigusr2_rcvd = 0;
/* Remove the sigusr2_sigaction handler and replace the SIGUSR2
/* Remove the siguser_action handler and replace the SIGUSR2
* handler with sigusr2_sighandler.
*/
printf("Resetting SIGUSR2 signal handler from pid=%d\n", mypid);
old_sigusr2_sighandler = signal(SIGUSR2, sigusr2_sighandler);
if (old_sigusr2_sighandler == SIG_ERR)
status = sigaction(SIGUSR2, &oact2, &act);
if (status != 0)
{
fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
fprintf(stderr, "Failed to install SIGUSR1 handler, errno=%d\n",
errno);
exit(7);
exit(2);
}
printf("Old SIGUSR2 sighandler at %p\n", old_sigusr2_sighandler);
printf("New SIGUSR2 sighandler at %p\n", sigusr2_sighandler);
printf("Old SIGUSR1 sighandler at %p\n", act.sa_handler);
printf("New SIGUSR1 sighandler at %p\n", oact1.sa_handler);
/* Verify that the handler that was removed was sigusr2_sigaction */
/* Verify that the handler that was removed was siguser_action */
if ((void*)old_sigusr2_sighandler != (void*)sigusr2_sigaction)
if ((void*)act.sa_handler != (void*)siguser_action)
{
fprintf(stderr,
"Old SIGUSR2 signhanlder (%p) is not sigusr2_sigation (%p)\n",
old_sigusr2_sighandler, sigusr2_sigaction);
"Old SIGUSR2 signal handler (%p) is not siguser_action (%p)\n",
act.sa_handler, siguser_action);
exit(8);
}
@@ -303,6 +258,7 @@ int main(int argc, char **argv)
fprintf(stderr, "SIGUSR2 not received\n");
exit(10);
}
sigusr2_rcvd = 0;
return 0;