int main (int argc, char **argv) {
int fails = 0;
rd_init();
fails += size2str_tests();
return fails ? 1 : 0;
}
void main(void) /* This really IS void, no error here. */
{ /* The startup routine assumes (well, ...) this */
/*
* Interrupts are still disabled. Do necessary setups, then
* enable them
*/
ROOT_DEV = ORIG_ROOT_DEV;
drive_info = DRIVE_INFO;
memory_end = (1<<20) + (EXT_MEM_K<<10);
memory_end &= 0xfffff000;
if (memory_end > 16*1024*1024)
memory_end = 16*1024*1024;
if (memory_end > 12*1024*1024)
buffer_memory_end = 4*1024*1024;
else if (memory_end > 6*1024*1024)
buffer_memory_end = 2*1024*1024;
else
buffer_memory_end = 1*1024*1024;
main_memory_start = buffer_memory_end;
#ifdef RAMDISK
main_memory_start += rd_init(main_memory_start, RAMDISK*1024);
#endif
mem_init(main_memory_start,memory_end);
trap_init();
blk_dev_init();
chr_dev_init();
tty_init();
time_init();
sched_init();
buffer_init(buffer_memory_end);
hd_init();
floppy_init();
sti();
move_to_user_mode();
setup((void *) &drive_info);
(void) open("/dev/tty0",O_RDWR,0);
(void) dup(0);
(void) dup(0);
(void) open("/var/process.log",O_CREAT|O_TRUNC|O_WRONLY,0666);
#ifdef dis_func
(void) open("/var/dis_func.log",O_CREAT|O_TRUNC|O_WRONLY,0666);
#endif
if (!fork()) { /* we count on this going ok */
init();
}
/*
* NOTE!! For any other task 'pause()' would mean we have to get a
* signal to awaken, but task0 is the sole exception (see 'schedule()')
* as task 0 gets activated at every idle moment (when no other tasks
* can run). For task0 'pause()' just means we go check if some other
* task can run, and if not we return here.
*/
for(;;) pause();
}
/* Main Program */
int main(void) {
SystemCoreClockUpdate(); //initialize mcu clocks
rd_init();
while (1) {
//__WFI(); //wait for interrupt
}
}
void main(void) /* This really IS void, no error here. */
{ /* The startup routine assumes (well, ...) this */
/*
* Interrupts are still disabled. Do necessary setups, then
* enable them
*/
ROOT_DEV = ORIG_ROOT_DEV;
drive_info = DRIVE_INFO;
memory_end = (1<<20) + (EXT_MEM_K<<10);
memory_end &= 0xfffff000;
if (memory_end > 16*1024*1024)
memory_end = 16*1024*1024;
if (memory_end > 12*1024*1024)
buffer_memory_end = 4*1024*1024;
else if (memory_end > 6*1024*1024)
buffer_memory_end = 2*1024*1024;
else
buffer_memory_end = 1*1024*1024;
main_memory_start = buffer_memory_end;
#ifdef RAMDISK
main_memory_start += rd_init(main_memory_start, RAMDISK*1024);
#endif
mem_init(main_memory_start,memory_end);
trap_init(); /* set the IDT in 0x00080000~0x000807ff(4KB)*/
blk_dev_init();
chr_dev_init(); /* this function do nothing */
tty_init(); /* rs_init() and con_init() */
time_init();
sched_init();
buffer_init(buffer_memory_end);
hd_init();
floppy_init();
sti();
move_to_user_mode();
if (!fork()) { /* we count on this going ok */
init();
}
/*
* NOTE!! For any other task 'pause()' would mean we have to get a
* signal to awaken, but task0 is the sole exception (see 'schedule()')
* as task 0 gets activated at every idle moment (when no other tasks
* can run). For task0 'pause()' just means we go check if some other
* task can run, and if not we return here.
*/
for(;;) pause();
}
int handle_init(void)
{
rd_init();
return 0;
}
int
main(int argc, char *argv[])
{
int pctlfd;
int pstatusfd;
char procname[PROCSIZE];
char *command;
char *rdb_commands = NULL;
pid_t cpid;
pstatus_t pstatus;
sysset_t sysset;
int c;
int error = 0;
long oper;
struct iovec piov[2];
extern FILE *yyin;
command = argv[0];
while ((c = getopt(argc, argv, "f:")) != EOF)
switch (c) {
case 'f':
rdb_commands = optarg;
break;
case '?':
break;
}
if (error || (optind == argc)) {
(void) printf("usage: %s [-f file] executable "
"[executable arguments ...]\n", command);
(void) printf("\t-f command file\n");
exit(1);
}
/*
* set up for tracing the child.
*/
init_proc();
/*
* create a child to fork and exec from.
*/
if ((cpid = fork()) == 0) {
(void) execv(argv[optind], &argv[optind]);
perr(argv[1]);
}
if (cpid == -1) /* fork() failure */
perr(command);
/*
* initialize libelf
*/
if (elf_version(EV_CURRENT) == EV_NONE) {
(void) fprintf(stderr, "elf_version() failed: %s\n",
elf_errmsg(0));
exit(1);
}
/*
* initialize librtld_db
*/
if (rd_init(RD_VERSION) != RD_OK) {
(void) fprintf(stderr, "librtld_db::rd_init() failed: version "
"submitted: %d\n", RD_VERSION);
exit(1);
}
/* rd_log(1); */
/*
* Child should now be waiting after the successful
* exec.
*/
(void) snprintf(procname, PROCSIZE, "/proc/%d/ctl", EC_SWORD(cpid));
(void) printf("parent: %d child: %d child procname: %s\n",
EC_SWORD(getpid()), EC_SWORD(cpid), procname);
if ((pctlfd = open(procname, O_WRONLY)) < 0) {
perror(procname);
(void) fprintf(stderr, "%s: can't open child %s\n",
command, procname);
exit(1);
}
/*
* wait for child process.
*/
oper = PCWSTOP;
piov[0].iov_base = (caddr_t)&oper;
piov[0].iov_len = sizeof (oper);
if (writev(pctlfd, piov, 1) == -1)
perr("PCWSTOP");
/*
* open /proc/<cpid>/status
*/
(void) snprintf(procname, PROCSIZE, "/proc/%d/status", EC_SWORD(cpid));
if ((pstatusfd = open(procname, O_RDONLY)) == -1)
perr(procname);
if (read(pstatusfd, &pstatus, sizeof (pstatus)) == -1)
perr("status read failed");
/*
* Make sure that it stopped where we expected.
*/
while ((pstatus.pr_lwp.pr_why == PR_SYSEXIT) &&
(pstatus.pr_lwp.pr_what == SYS_execve)) {
long pflags = 0;
if (!(pstatus.pr_lwp.pr_reg[R_PS] & ERRBIT)) {
/* successfull exec(2) */
break;
}
oper = PCRUN;
piov[1].iov_base = (caddr_t)&pflags;
piov[1].iov_len = sizeof (pflags);
if (writev(pctlfd, piov, 2) == -1)
perr("PCRUN1");
oper = PCWSTOP;
if (writev(pctlfd, piov, 1) == -1)
perr("PCWSTOP");
if (read(pstatusfd, &pstatus, sizeof (pstatus)) == -1)
perr("status read failed");
}
premptyset(&sysset);
oper = PCSEXIT;
piov[1].iov_base = (caddr_t)&sysset;
piov[1].iov_len = sizeof (sysset);
if (writev(pctlfd, piov, 2) == -1)
perr("PIOCSEXIT");
/*
* Did we stop where we expected ?
*/
if ((pstatus.pr_lwp.pr_why != PR_SYSEXIT) ||
(pstatus.pr_lwp.pr_what != SYS_execve)) {
long pflags = 0;
(void) fprintf(stderr, "Didn't catch the exec, why: %d "
"what: %d\n", pstatus.pr_lwp.pr_why,
pstatus.pr_lwp.pr_what);
oper = PCRUN;
piov[1].iov_base = (caddr_t)&pflags;
piov[1].iov_len = sizeof (pflags);
if (writev(pctlfd, piov, 2) == -1)
perr("PCRUN2");
exit(1);
}
(void) ps_init(pctlfd, pstatusfd, cpid, &proch);
if (rdb_commands) {
if ((yyin = fopen(rdb_commands, "r")) == NULL) {
(void) printf("unable to open %s for input\n",
rdb_commands);
perr("fopen");
}
} else {
proch.pp_flags |= FLG_PP_PROMPT;
rdb_prompt();
}
(void) yyparse();
if (proch.pp_flags & FLG_PP_PACT) {
long pflags = PRCFAULT;
(void) printf("\ncontinuing the hung process...\n");
pctlfd = proch.pp_ctlfd;
(void) ps_close(&proch);
oper = PCRUN;
piov[1].iov_base = (caddr_t)&pflags;
piov[1].iov_len = sizeof (pflags);
if (writev(pctlfd, piov, 2) == -1)
perr("PCRUN2");
(void) close(pctlfd);
}
return (0);
}
int
main(int argc, char *argv[], char *envp[])
{
extern int mdb_kvm_is_compressed_dump(mdb_io_t *);
mdb_tgt_ctor_f *tgt_ctor = NULL;
const char **tgt_argv = alloca(argc * sizeof (char *));
int tgt_argc = 0;
mdb_tgt_t *tgt;
char object[MAXPATHLEN], execname[MAXPATHLEN];
mdb_io_t *in_io, *out_io, *err_io, *null_io;
struct termios tios;
int status, c;
char *p;
const char *Iflag = NULL, *Lflag = NULL, *Vflag = NULL, *pidarg = NULL;
int fflag = 0, Kflag = 0, Rflag = 0, Sflag = 0, Oflag = 0, Uflag = 0;
int ttylike;
int longmode = 0;
stack_t sigstack;
if (realpath(getexecname(), execname) == NULL) {
(void) strncpy(execname, argv[0], MAXPATHLEN);
execname[MAXPATHLEN - 1] = '\0';
}
mdb_create(execname, argv[0]);
bzero(tgt_argv, argc * sizeof (char *));
argv[0] = (char *)mdb.m_pname;
_mdb_self_fd = open("/proc/self/as", O_RDONLY);
mdb.m_env = envp;
out_io = mdb_fdio_create(STDOUT_FILENO);
mdb.m_out = mdb_iob_create(out_io, MDB_IOB_WRONLY);
err_io = mdb_fdio_create(STDERR_FILENO);
mdb.m_err = mdb_iob_create(err_io, MDB_IOB_WRONLY);
mdb_iob_clrflags(mdb.m_err, MDB_IOB_AUTOWRAP);
null_io = mdb_nullio_create();
mdb.m_null = mdb_iob_create(null_io, MDB_IOB_WRONLY);
in_io = mdb_fdio_create(STDIN_FILENO);
if ((mdb.m_termtype = getenv("TERM")) != NULL) {
mdb.m_termtype = strdup(mdb.m_termtype);
mdb.m_flags |= MDB_FL_TERMGUESS;
}
mdb.m_term = NULL;
mdb_dmode(mdb_dstr2mode(getenv("MDB_DEBUG")));
mdb.m_pgid = getpgrp();
if (getenv("_MDB_EXEC") != NULL)
mdb.m_flags |= MDB_FL_EXEC;
/*
* Setup an alternate signal stack. When tearing down pipelines in
* terminate(), we may have to destroy the stack of the context in
* which we are currently executing the signal handler.
*/
sigstack.ss_sp = mmap(NULL, SIGSTKSZ, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (sigstack.ss_sp == MAP_FAILED)
die("could not allocate signal stack");
sigstack.ss_size = SIGSTKSZ;
sigstack.ss_flags = 0;
if (sigaltstack(&sigstack, NULL) != 0)
die("could not set signal stack");
(void) mdb_signal_sethandler(SIGPIPE, SIG_IGN, NULL);
(void) mdb_signal_sethandler(SIGQUIT, SIG_IGN, NULL);
(void) mdb_signal_sethandler(SIGILL, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGTRAP, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGIOT, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGEMT, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGFPE, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGBUS, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGSEGV, flt_handler, NULL);
(void) mdb_signal_sethandler(SIGHUP, (mdb_signal_f *)terminate, NULL);
(void) mdb_signal_sethandler(SIGTERM, (mdb_signal_f *)terminate, NULL);
for (mdb.m_rdvers = RD_VERSION; mdb.m_rdvers > 0; mdb.m_rdvers--) {
if (rd_init(mdb.m_rdvers) == RD_OK)
break;
}
for (mdb.m_ctfvers = CTF_VERSION; mdb.m_ctfvers > 0; mdb.m_ctfvers--) {
if (ctf_version(mdb.m_ctfvers) != -1)
break;
}
if ((p = getenv("HISTSIZE")) != NULL && strisnum(p)) {
mdb.m_histlen = strtoi(p);
if (mdb.m_histlen < 1)
mdb.m_histlen = 1;
}
while (optind < argc) {
while ((c = getopt(argc, argv,
"fkmo:p:s:uwyACD:FI:KL:MOP:R:SUV:W")) != (int)EOF) {
switch (c) {
case 'f':
fflag++;
tgt_ctor = mdb_rawfile_tgt_create;
break;
case 'k':
tgt_ctor = mdb_kvm_tgt_create;
break;
case 'm':
mdb.m_tgtflags |= MDB_TGT_F_NOLOAD;
mdb.m_tgtflags &= ~MDB_TGT_F_PRELOAD;
break;
case 'o':
if (!mdb_set_options(optarg, TRUE))
terminate(2);
break;
case 'p':
tgt_ctor = mdb_proc_tgt_create;
pidarg = optarg;
break;
case 's':
if (!strisnum(optarg)) {
warn("expected integer following -s\n");
terminate(2);
}
mdb.m_symdist = (size_t)(uint_t)strtoi(optarg);
break;
case 'u':
tgt_ctor = mdb_proc_tgt_create;
break;
case 'w':
mdb.m_tgtflags |= MDB_TGT_F_RDWR;
break;
case 'y':
mdb.m_flags |= MDB_FL_USECUP;
break;
case 'A':
(void) mdb_set_options("nomods", TRUE);
break;
case 'C':
(void) mdb_set_options("noctf", TRUE);
break;
case 'D':
mdb_dmode(mdb_dstr2mode(optarg));
break;
case 'F':
mdb.m_tgtflags |= MDB_TGT_F_FORCE;
break;
case 'I':
Iflag = optarg;
break;
case 'L':
Lflag = optarg;
break;
case 'K':
Kflag++;
break;
case 'M':
mdb.m_tgtflags |= MDB_TGT_F_PRELOAD;
mdb.m_tgtflags &= ~MDB_TGT_F_NOLOAD;
break;
case 'O':
Oflag++;
break;
case 'P':
if (!mdb_set_prompt(optarg))
terminate(2);
break;
case 'R':
(void) strncpy(mdb.m_root, optarg, MAXPATHLEN);
mdb.m_root[MAXPATHLEN - 1] = '\0';
Rflag++;
break;
case 'S':
Sflag++;
break;
case 'U':
Uflag++;
break;
case 'V':
Vflag = optarg;
break;
case 'W':
mdb.m_tgtflags |= MDB_TGT_F_ALLOWIO;
break;
case '?':
if (optopt == '?')
usage(0);
/* FALLTHROUGH */
default:
usage(2);
}
}
if (optind < argc) {
const char *arg = argv[optind++];
if (arg[0] == '+' && strlen(arg) == 2) {
if (arg[1] != 'o') {
warn("illegal option -- %s\n", arg);
terminate(2);
}
if (optind >= argc) {
warn("option requires an argument -- "
"%s\n", arg);
terminate(2);
}
if (!mdb_set_options(argv[optind++], FALSE))
terminate(2);
} else
tgt_argv[tgt_argc++] = arg;
}
}
if (rd_ctl(RD_CTL_SET_HELPPATH, (void *)mdb.m_root) != RD_OK) {
warn("cannot set librtld_db helper path to %s\n", mdb.m_root);
terminate(2);
}
if (mdb.m_debug & MDB_DBG_HELP)
terminate(0); /* Quit here if we've printed out the tokens */
if (Iflag != NULL && strchr(Iflag, ';') != NULL) {
warn("macro path cannot contain semicolons\n");
terminate(2);
}
if (Lflag != NULL && strchr(Lflag, ';') != NULL) {
warn("module path cannot contain semicolons\n");
terminate(2);
}
if (Kflag || Uflag) {
char *nm;
if (tgt_ctor != NULL || Iflag != NULL) {
warn("neither -f, -k, -p, -u, nor -I "
"may be used with -K\n");
usage(2);
}
if (Lflag != NULL)
mdb_set_lpath(Lflag);
if ((nm = ttyname(STDIN_FILENO)) == NULL ||
strcmp(nm, "/dev/console") != 0) {
/*
* Due to the consequences of typing mdb -K instead of
* mdb -k on a tty other than /dev/console, we require
* -F when starting kmdb from a tty other than
* /dev/console.
*/
if (!(mdb.m_tgtflags & MDB_TGT_F_FORCE)) {
die("-F must also be supplied to start kmdb "
"from non-console tty\n");
}
if (mdb.m_termtype == NULL || (mdb.m_flags &
MDB_FL_TERMGUESS)) {
if (mdb.m_termtype != NULL)
strfree(mdb.m_termtype);
if ((mdb.m_termtype = mdb_scf_console_term()) !=
NULL)
mdb.m_flags |= MDB_FL_TERMGUESS;
}
} else {
/*
* When on console, $TERM (if set) takes precedence over
* the SMF setting.
*/
if (mdb.m_termtype == NULL && (mdb.m_termtype =
mdb_scf_console_term()) != NULL)
mdb.m_flags |= MDB_FL_TERMGUESS;
}
control_kmdb(Kflag);
terminate(0);
/*NOTREACHED*/
}
/*
* If standard input appears to have tty attributes, attempt to
* initialize a terminal i/o backend on top of stdin and stdout.
*/
ttylike = (IOP_CTL(in_io, TCGETS, &tios) == 0);
if (ttylike) {
if ((mdb.m_term = mdb_termio_create(mdb.m_termtype,
in_io, out_io)) == NULL) {
if (!(mdb.m_flags & MDB_FL_EXEC)) {
warn("term init failed: command-line editing "
"and prompt will not be available\n");
}
} else {
in_io = mdb.m_term;
}
}
mdb.m_in = mdb_iob_create(in_io, MDB_IOB_RDONLY);
if (mdb.m_term != NULL) {
mdb_iob_setpager(mdb.m_out, mdb.m_term);
if (mdb.m_flags & MDB_FL_PAGER)
mdb_iob_setflags(mdb.m_out, MDB_IOB_PGENABLE);
else
mdb_iob_clrflags(mdb.m_out, MDB_IOB_PGENABLE);
} else if (ttylike)
mdb_iob_setflags(mdb.m_in, MDB_IOB_TTYLIKE);
else
mdb_iob_setbuf(mdb.m_in, mdb_alloc(1, UM_SLEEP), 1);
mdb_pservice_init();
mdb_lex_reset();
if ((mdb.m_shell = getenv("SHELL")) == NULL)
mdb.m_shell = "/bin/sh";
/*
* If the debugger state is to be inherited from a previous instance,
* restore it now prior to path evaluation so that %R is updated.
*/
if ((p = getenv(MDB_CONFIG_ENV_VAR)) != NULL) {
mdb_set_config(p);
(void) unsetenv(MDB_CONFIG_ENV_VAR);
}
/*
* Path evaluation part 1: Create the initial module path to allow
* the target constructor to load a support module. Then expand
* any command-line arguments that modify the paths.
*/
if (Iflag != NULL)
mdb_set_ipath(Iflag);
else
mdb_set_ipath(MDB_DEF_IPATH);
if (Lflag != NULL)
mdb_set_lpath(Lflag);
else
mdb_set_lpath(MDB_DEF_LPATH);
if (mdb_get_prompt() == NULL && !(mdb.m_flags & MDB_FL_ADB))
(void) mdb_set_prompt(MDB_DEF_PROMPT);
if (tgt_ctor == mdb_kvm_tgt_create) {
if (pidarg != NULL) {
warn("-p and -k options are mutually exclusive\n");
terminate(2);
}
if (tgt_argc == 0)
tgt_argv[tgt_argc++] = "/dev/ksyms";
if (tgt_argc == 1 && strisnum(tgt_argv[0]) == 0) {
if (mdb.m_tgtflags & MDB_TGT_F_ALLOWIO)
tgt_argv[tgt_argc++] = "/dev/allkmem";
else
tgt_argv[tgt_argc++] = "/dev/kmem";
}
}
if (pidarg != NULL) {
if (tgt_argc != 0) {
warn("-p may not be used with other arguments\n");
terminate(2);
}
if (proc_arg_psinfo(pidarg, PR_ARG_PIDS, NULL, &status) == -1) {
die("cannot attach to %s: %s\n",
pidarg, Pgrab_error(status));
}
if (strchr(pidarg, '/') != NULL)
(void) mdb_iob_snprintf(object, MAXPATHLEN,
"%s/object/a.out", pidarg);
else
(void) mdb_iob_snprintf(object, MAXPATHLEN,
"/proc/%s/object/a.out", pidarg);
tgt_argv[tgt_argc++] = object;
tgt_argv[tgt_argc++] = pidarg;
}
/*
* Find the first argument that is not a special "-" token. If one is
* found, we will examine this file and make some inferences below.
*/
for (c = 0; c < tgt_argc && strcmp(tgt_argv[c], "-") == 0; c++)
continue;
if (c < tgt_argc) {
Elf32_Ehdr ehdr;
mdb_io_t *io;
/*
* If special "-" tokens preceded an argument, shift the entire
* argument list to the left to remove the leading "-" args.
*/
if (c > 0) {
bcopy(&tgt_argv[c], tgt_argv,
sizeof (const char *) * (tgt_argc - c));
tgt_argc -= c;
}
if (fflag)
goto tcreate; /* skip re-exec and just create target */
/*
* If we just have an object file name, and that file doesn't
* exist, and it's a string of digits, infer it to be a
* sequence number referring to a pair of crash dump files.
*/
if (tgt_argc == 1 && access(tgt_argv[0], F_OK) == -1 &&
strisnum(tgt_argv[0])) {
size_t len = strlen(tgt_argv[0]) + 8;
const char *object = tgt_argv[0];
tgt_argv[0] = mdb_alloc(len, UM_SLEEP);
tgt_argv[1] = mdb_alloc(len, UM_SLEEP);
(void) strcpy((char *)tgt_argv[0], "unix.");
(void) strcat((char *)tgt_argv[0], object);
(void) strcpy((char *)tgt_argv[1], "vmcore.");
(void) strcat((char *)tgt_argv[1], object);
if (access(tgt_argv[0], F_OK) == -1 &&
access(tgt_argv[1], F_OK) == -1) {
(void) strcpy((char *)tgt_argv[1], "vmdump.");
(void) strcat((char *)tgt_argv[1], object);
if (access(tgt_argv[1], F_OK) == 0) {
mdb_iob_printf(mdb.m_err,
"cannot open compressed dump; "
"decompress using savecore -f %s\n",
tgt_argv[1]);
terminate(0);
}
}
tgt_argc = 2;
}
/*
* We need to open the object file in order to determine its
* ELF class and potentially re-exec ourself.
*/
if ((io = mdb_fdio_create_path(NULL, tgt_argv[0],
O_RDONLY, 0)) == NULL)
die("failed to open %s", tgt_argv[0]);
/*
* Check for a single vmdump.N compressed dump file,
* and give a helpful message.
*/
if (tgt_argc == 1) {
if (mdb_kvm_is_compressed_dump(io)) {
mdb_iob_printf(mdb.m_err,
"cannot open compressed dump; "
"decompress using savecore -f %s\n",
tgt_argv[0]);
terminate(0);
}
}
/*
* If the target is unknown or is not the rawfile target, do
* a gelf_check to determine if the file is an ELF file. If
* it is not and the target is unknown, use the rawfile tgt.
* Otherwise an ELF-based target is needed, so we must abort.
*/
if (mdb_gelf_check(io, &ehdr, ET_NONE) == -1) {
if (tgt_ctor != NULL) {
(void) mdb_gelf_check(io, &ehdr, ET_EXEC);
mdb_io_destroy(io);
terminate(1);
} else
tgt_ctor = mdb_rawfile_tgt_create;
}
mdb_io_destroy(io);
if (identify_xvm_file(tgt_argv[0], &longmode) == 1) {
#ifdef _LP64
if (!longmode)
goto reexec;
#else
if (longmode)
goto reexec;
#endif
tgt_ctor = mdb_kvm_tgt_create;
goto tcreate;
}
/*
* The object file turned out to be a user core file (ET_CORE),
* and no other arguments were specified, swap 0 and 1. The
* proc target will infer the executable for us.
*/
if (ehdr.e_type == ET_CORE) {
tgt_argv[tgt_argc++] = tgt_argv[0];
tgt_argv[0] = NULL;
tgt_ctor = mdb_proc_tgt_create;
}
/*
* If tgt_argv[1] is filled in, open it up and determine if it
* is a vmcore file. If it is, gelf_check will fail and we
* set tgt_ctor to 'kvm'; otherwise we use the default.
*/
if (tgt_argc > 1 && strcmp(tgt_argv[1], "-") != 0 &&
tgt_argv[0] != NULL && pidarg == NULL) {
Elf32_Ehdr chdr;
if (access(tgt_argv[1], F_OK) == -1)
die("failed to access %s", tgt_argv[1]);
/* *.N case: drop vmdump.N from the list */
if (tgt_argc == 3) {
if ((io = mdb_fdio_create_path(NULL,
tgt_argv[2], O_RDONLY, 0)) == NULL)
die("failed to open %s", tgt_argv[2]);
if (mdb_kvm_is_compressed_dump(io))
tgt_argv[--tgt_argc] = NULL;
mdb_io_destroy(io);
}
if ((io = mdb_fdio_create_path(NULL, tgt_argv[1],
O_RDONLY, 0)) == NULL)
die("failed to open %s", tgt_argv[1]);
if (mdb_gelf_check(io, &chdr, ET_NONE) == -1)
tgt_ctor = mdb_kvm_tgt_create;
mdb_io_destroy(io);
}
/*
* At this point, we've read the ELF header for either an
* object file or core into ehdr. If the class does not match
* ours, attempt to exec the mdb of the appropriate class.
*/
#ifdef _LP64
if (ehdr.e_ident[EI_CLASS] == ELFCLASS32)
goto reexec;
#else
if (ehdr.e_ident[EI_CLASS] == ELFCLASS64)
goto reexec;
#endif
}
tcreate:
if (tgt_ctor == NULL)
tgt_ctor = mdb_proc_tgt_create;
tgt = mdb_tgt_create(tgt_ctor, mdb.m_tgtflags, tgt_argc, tgt_argv);
if (tgt == NULL) {
if (errno == EINVAL)
usage(2); /* target can return EINVAL to get usage */
if (errno == EMDB_TGT)
terminate(1); /* target already printed error msg */
die("failed to initialize target");
}
mdb_tgt_activate(tgt);
mdb_create_loadable_disasms();
if (Vflag != NULL && mdb_dis_select(Vflag) == -1)
warn("invalid disassembler mode -- %s\n", Vflag);
if (Rflag && mdb.m_term != NULL)
warn("Using proto area %s\n", mdb.m_root);
/*
* If the target was successfully constructed and -O was specified,
* we now attempt to enter piggy-mode for debugging jurassic problems.
*/
if (Oflag) {
pcinfo_t pci;
(void) strcpy(pci.pc_clname, "RT");
if (priocntl(P_LWPID, P_MYID, PC_GETCID, (caddr_t)&pci) != -1) {
pcparms_t pcp;
rtparms_t *rtp = (rtparms_t *)pcp.pc_clparms;
rtp->rt_pri = 35;
rtp->rt_tqsecs = 0;
rtp->rt_tqnsecs = RT_TQDEF;
pcp.pc_cid = pci.pc_cid;
if (priocntl(P_LWPID, P_MYID, PC_SETPARMS,
(caddr_t)&pcp) == -1) {
warn("failed to set RT parameters");
Oflag = 0;
}
} else {
warn("failed to get RT class id");
Oflag = 0;
}
if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1) {
warn("failed to lock address space");
Oflag = 0;
}
if (Oflag)
mdb_printf("%s: oink, oink!\n", mdb.m_pname);
}
/*
* Path evaluation part 2: Re-evaluate the path now that the target
* is ready (and thus we have access to the real platform string).
* Do this before reading ~/.mdbrc to allow path modifications prior
* to performing module auto-loading.
*/
mdb_set_ipath(mdb.m_ipathstr);
mdb_set_lpath(mdb.m_lpathstr);
if (!Sflag && (p = getenv("HOME")) != NULL) {
char rcpath[MAXPATHLEN];
mdb_io_t *rc_io;
int fd;
(void) mdb_iob_snprintf(rcpath, MAXPATHLEN, "%s/.mdbrc", p);
fd = open64(rcpath, O_RDONLY);
if (fd >= 0 && (rc_io = mdb_fdio_create_named(fd, rcpath))) {
mdb_iob_t *iob = mdb_iob_create(rc_io, MDB_IOB_RDONLY);
mdb_iob_t *old = mdb.m_in;
mdb.m_in = iob;
(void) mdb_run();
mdb.m_in = old;
}
}
if (!(mdb.m_flags & MDB_FL_NOMODS))
mdb_module_load_all(0);
(void) mdb_signal_sethandler(SIGINT, int_handler, NULL);
while ((status = mdb_run()) == MDB_ERR_ABORT ||
status == MDB_ERR_OUTPUT) {
/*
* If a write failed on stdout, give up. A more informative
* error message will already have been printed by mdb_run().
*/
if (status == MDB_ERR_OUTPUT &&
mdb_iob_getflags(mdb.m_out) & MDB_IOB_ERR) {
mdb_warn("write to stdout failed, exiting\n");
break;
}
continue;
}
terminate((status == MDB_ERR_QUIT || status == 0) ? 0 : 1);
/*NOTREACHED*/
return (0);
reexec:
if ((p = strrchr(execname, '/')) == NULL)
die("cannot determine absolute pathname\n");
#ifdef _LP64
#ifdef __sparc
(void) strcpy(p, "/../sparcv7/");
#else
(void) strcpy(p, "/../i86/");
#endif
#else
#ifdef __sparc
(void) strcpy(p, "/../sparcv9/");
#else
(void) strcpy(p, "/../amd64/");
#endif
#endif
(void) strcat(p, mdb.m_pname);
if (mdb.m_term != NULL)
(void) IOP_CTL(in_io, TCSETSW, &tios);
(void) putenv("_MDB_EXEC=1");
(void) execv(execname, argv);
/*
* If execv fails, suppress ENOEXEC. Experience shows the most common
* reason is that the machine is booted under a 32-bit kernel, in which
* case it is clearer to only print the message below.
*/
if (errno != ENOEXEC)
warn("failed to exec %s", execname);
#ifdef _LP64
die("64-bit %s cannot debug 32-bit program %s\n",
mdb.m_pname, tgt_argv[0] ?
tgt_argv[0] : tgt_argv[1]);
#else
die("32-bit %s cannot debug 64-bit program %s\n",
mdb.m_pname, tgt_argv[0] ?
tgt_argv[0] : tgt_argv[1]);
#endif
goto tcreate;
}
int main (int argc, char **argv) {
rd_kafka_t *rk;
char *broker = NULL;
int mode_p = 0;
int mode_c = 0;
char *topic;
int partition;
/* Command line argument option definition. */
rd_opt_t opts[] = {
{ RD_OPT_BOOL|RD_OPT_MUT1|RD_OPT_REQ, 'P', "produce",
0, &mode_p, "Run as producer" },
{ RD_OPT_BOOL|RD_OPT_MUT1|RD_OPT_REQ, 'C', "consume",
0, &mode_c, "Run as consumer" },
{ RD_OPT_STR|RD_OPT_REQ, 't', "topic", 1, &topic, "Topic" },
{ RD_OPT_INT|RD_OPT_REQ, 'p', "partition", 1, &partition,
"Partition" },
{ RD_OPT_STR, 'b', "broker", 1, &broker, "Broker host:port" },
{ RD_OPT_END },
};
/* Initialize librd */
rd_init();
/* Parse command line arguments. */
if (!rd_opt_get(opts, argc, argv, NULL, NULL))
exit(1);
signal(SIGINT, stop);
if (mode_p) {
/*
* Producer
*/
char buf[1024];
/* Create Kafka handle */
if (!(rk = rd_kafka_new(RD_KAFKA_PRODUCER, broker, NULL))) {
perror("kafka_new producer");
exit(1);
}
fprintf(stderr, "%% Type stuff and hit enter to send\n");
while (run && (fgets(buf, sizeof(buf), stdin))) {
int len = strlen(buf);
/* Send/Produce message. */
rd_kafka_produce(rk, topic, partition, 0, buf, len);
fprintf(stderr, "%% Sent %i bytes to topic "
"%s partition %i\n", len, topic, partition);
}
/* Destroy the handle */
rd_kafka_destroy(rk);
} else {
/*
* Consumer
*/
rd_kafka_op_t *rko;
/* Base our configuration on the default config. */
rd_kafka_conf_t conf = rd_kafka_defaultconf;
/* The offset storage file is optional but its presence
* avoids starting all over from offset 0 again when
* the program restarts.
* ZooKeeper functionality will be implemented in future
* versions and then the offset will be stored there instead. */
conf.consumer.offset_file = "."; /* current directory */
/* Indicate to rdkafka that the application is responsible
* for storing the offset. This allows the application to
* succesfully handle a message before storing the offset.
* If this flag is not set rdkafka will store the offset
* just prior to returning the message from rd_kafka_consume().
*/
conf.flags |= RD_KAFKA_CONF_F_APP_OFFSET_STORE;
/* Use the consumer convenience function
* to create a Kafka handle. */
if (!(rk = rd_kafka_new_consumer(broker, topic,
(uint32_t)partition,
0, &conf))) {
perror("kafka_new_consumer");
exit(1);
}
while (run) {
/* Fetch an "op" which is one of:
* - a kafka message (if rko_len>0 && rko_err==0)
* - an error (if rko_err)
*/
if (!(rko = rd_kafka_consume(rk, 1000/*timeout ms*/)))
continue;
if (rko->rko_err)
fprintf(stderr, "%% Error: %.*s\n",
rko->rko_len, rko->rko_payload);
else if (rko->rko_len) {
fprintf(stderr, "%% Message with "
"next-offset %"PRIu64" is %i bytes\n",
rko->rko_offset, rko->rko_len);
rd_hexdump(stdout, "Message",
rko->rko_payload, rko->rko_len);
}
/* rko_offset contains the offset of the _next_
* message. We store it when we're done processing
* the current message. */
if (rko->rko_offset)
rd_kafka_offset_store(rk, rko->rko_offset);
/* Destroy the op */
rd_kafka_op_destroy(rk, rko);
}
/* Destroy the handle */
rd_kafka_destroy(rk);
}
return 0;
}
