#define SPU_ENABLESUPPRESSION 1
#include <os2.h>
#include "dlfcn.h"
+#include <emx/syscalls.h>
#include <sys/uflags.h>
#include "EXTERN.h"
#include "perl.h"
-#ifdef USE_THREADS
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
typedef void (*emx_startroutine)(void *);
typedef void* (*pthreads_startroutine)(void *);
pthreads_st_exited,
pthreads_st_detached,
pthreads_st_waited,
+ pthreads_st_norun,
+ pthreads_st_exited_waited,
};
const char *pthreads_states[] = {
"uninit",
"exited",
"detached",
"waited for",
+ "could not start",
+ "exited, then waited on",
};
+enum pthread_exists { pthread_not_existant = -0xff };
+
+static const char*
+pthreads_state_string(enum pthreads_state state)
+{
+ if (state < 0 || state >= sizeof(pthreads_states)/sizeof(*pthreads_states)) {
+ static char buf[80];
+
+ snprintf(buf, sizeof(buf), "unknown thread state %d", (int)state);
+ return buf;
+ }
+ return pthreads_states[state];
+}
+
typedef struct {
void *status;
perl_cond cond;
pthread_join(perl_os_thread tid, void **status)
{
MUTEX_LOCK(&start_thread_mutex);
+ if (tid < 1 || tid >= thread_join_count) {
+ MUTEX_UNLOCK(&start_thread_mutex);
+ if (tid != pthread_not_existant)
+ Perl_croak_nocontext("panic: join with a thread with strange ordinal %d", (int)tid);
+ Perl_warn_nocontext("panic: join with a thread which could not start");
+ *status = 0;
+ return 0;
+ }
switch (thread_join_data[tid].state) {
case pthreads_st_exited:
- thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */
- MUTEX_UNLOCK(&start_thread_mutex);
+ thread_join_data[tid].state = pthreads_st_exited_waited;
*status = thread_join_data[tid].status;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ COND_SIGNAL(&thread_join_data[tid].cond);
break;
case pthreads_st_waited:
MUTEX_UNLOCK(&start_thread_mutex);
Perl_croak_nocontext("join with a thread with a waiter");
break;
+ case pthreads_st_norun:
+ {
+ int state = (int)thread_join_data[tid].status;
+
+ thread_join_data[tid].state = pthreads_st_none;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ Perl_croak_nocontext("panic: join with a thread which could not run"
+ " due to attempt of tid reuse (state='%s')",
+ pthreads_state_string(state));
+ break;
+ }
case pthreads_st_run:
+ {
+ perl_cond cond;
+
thread_join_data[tid].state = pthreads_st_waited;
+ thread_join_data[tid].status = (void *)status;
COND_INIT(&thread_join_data[tid].cond);
+ cond = thread_join_data[tid].cond;
+ COND_WAIT(&thread_join_data[tid].cond, &start_thread_mutex);
+ COND_DESTROY(&cond);
MUTEX_UNLOCK(&start_thread_mutex);
- COND_WAIT(&thread_join_data[tid].cond, NULL);
- COND_DESTROY(&thread_join_data[tid].cond);
- thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */
- *status = thread_join_data[tid].status;
break;
+ }
default:
MUTEX_UNLOCK(&start_thread_mutex);
- Perl_croak_nocontext("join: unknown thread state: '%s'",
- pthreads_states[thread_join_data[tid].state]);
+ Perl_croak_nocontext("panic: join with thread in unknown thread state: '%s'",
+ pthreads_state_string(thread_join_data[tid].state));
break;
}
return 0;
}
+typedef struct {
+ pthreads_startroutine sub;
+ void *arg;
+ void *ctx;
+} pthr_startit;
+
+/* The lock is used:
+ a) Since we temporarily usurp the caller interp, so malloc() may
+ use it to decide on debugging the call;
+ b) Since *args is on the caller's stack.
+ */
void
-pthread_startit(void *arg)
+pthread_startit(void *arg1)
{
/* Thread is already started, we need to transfer control only */
- pthreads_startroutine start_routine = *((pthreads_startroutine*)arg);
+ pthr_startit args = *(pthr_startit *)arg1;
int tid = pthread_self();
- void *retval;
-
- arg = ((void**)arg)[1];
+ void *rc;
+ int state;
+
+ if (tid <= 1) {
+ /* Can't croak, the setjmp() is not in scope... */
+ char buf[80];
+
+ snprintf(buf, sizeof(buf),
+ "panic: thread with strange ordinal %d created\n\r", tid);
+ write(2,buf,strlen(buf));
+ MUTEX_UNLOCK(&start_thread_mutex);
+ return;
+ }
+ /* Until args.sub resets it, makes debugging Perl_malloc() work: */
+ PERL_SET_CONTEXT(0);
if (tid >= thread_join_count) {
int oc = thread_join_count;
Newz(1323, thread_join_data, thread_join_count, thread_join_t);
}
}
- if (thread_join_data[tid].state != pthreads_st_none)
- Perl_croak_nocontext("attempt to reuse thread id %i", tid);
+ if (thread_join_data[tid].state != pthreads_st_none) {
+ /* Can't croak, the setjmp() is not in scope... */
+ char buf[80];
+
+ snprintf(buf, sizeof(buf),
+ "panic: attempt to reuse thread id %d (state='%s')\n\r",
+ tid, pthreads_state_string(thread_join_data[tid].state));
+ write(2,buf,strlen(buf));
+ thread_join_data[tid].status = (void*)thread_join_data[tid].state;
+ thread_join_data[tid].state = pthreads_st_norun;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ return;
+ }
thread_join_data[tid].state = pthreads_st_run;
/* Now that we copied/updated the guys, we may release the caller... */
MUTEX_UNLOCK(&start_thread_mutex);
- thread_join_data[tid].status = (*start_routine)(arg);
+ rc = (*args.sub)(args.arg);
+ MUTEX_LOCK(&start_thread_mutex);
switch (thread_join_data[tid].state) {
case pthreads_st_waited:
- COND_SIGNAL(&thread_join_data[tid].cond);
+ COND_SIGNAL(&thread_join_data[tid].cond);
+ thread_join_data[tid].state = pthreads_st_none;
+ *((void**)thread_join_data[tid].status) = rc;
break;
- default:
+ case pthreads_st_detached:
+ thread_join_data[tid].state = pthreads_st_none;
+ break;
+ case pthreads_st_run:
+ /* Somebody can wait on us; cannot exit, since OS can reuse the tid
+ and our waiter will get somebody else's status. */
thread_join_data[tid].state = pthreads_st_exited;
+ thread_join_data[tid].status = rc;
+ COND_INIT(&thread_join_data[tid].cond);
+ COND_WAIT(&thread_join_data[tid].cond, &start_thread_mutex);
+ COND_DESTROY(&thread_join_data[tid].cond);
+ thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */
break;
+ default:
+ state = thread_join_data[tid].state;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ Perl_croak_nocontext("panic: unexpected thread state on exit: '%s'",
+ pthreads_state_string(state));
}
+ MUTEX_UNLOCK(&start_thread_mutex);
}
int
-pthread_create(perl_os_thread *tid, const pthread_attr_t *attr,
+pthread_create(perl_os_thread *tidp, const pthread_attr_t *attr,
void *(*start_routine)(void*), void *arg)
{
- void *args[2];
+ dTHX;
+ pthr_startit args;
- args[0] = (void*)start_routine;
- args[1] = arg;
+ args.sub = (void*)start_routine;
+ args.arg = arg;
+ args.ctx = PERL_GET_CONTEXT;
MUTEX_LOCK(&start_thread_mutex);
- *tid = _beginthread(pthread_startit, /*stack*/ NULL,
- /*stacksize*/ 10*1024*1024, (void*)args);
- MUTEX_LOCK(&start_thread_mutex);
+ /* Test suite creates 31 extra threads;
+ on machine without shared-memory-hogs this stack sizeis OK with 31: */
+ *tidp = _beginthread(pthread_startit, /*stack*/ NULL,
+ /*stacksize*/ 4*1024*1024, (void*)&args);
+ if (*tidp == -1) {
+ *tidp = pthread_not_existant;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ return EINVAL;
+ }
+ MUTEX_LOCK(&start_thread_mutex); /* Wait for init to proceed */
MUTEX_UNLOCK(&start_thread_mutex);
- return *tid ? 0 : EINVAL;
+ return 0;
}
int
pthread_detach(perl_os_thread tid)
{
MUTEX_LOCK(&start_thread_mutex);
+ if (tid < 1 || tid >= thread_join_count) {
+ MUTEX_UNLOCK(&start_thread_mutex);
+ if (tid != pthread_not_existant)
+ Perl_croak_nocontext("panic: detach of a thread with strange ordinal %d", (int)tid);
+ Perl_warn_nocontext("detach of a thread which could not start");
+ return 0;
+ }
switch (thread_join_data[tid].state) {
case pthreads_st_waited:
MUTEX_UNLOCK(&start_thread_mutex);
thread_join_data[tid].state = pthreads_st_detached;
MUTEX_UNLOCK(&start_thread_mutex);
break;
+ case pthreads_st_exited:
+ MUTEX_UNLOCK(&start_thread_mutex);
+ COND_SIGNAL(&thread_join_data[tid].cond);
+ break;
+ case pthreads_st_detached:
+ MUTEX_UNLOCK(&start_thread_mutex);
+ Perl_warn_nocontext("detach on an already detached thread");
+ break;
+ case pthreads_st_norun:
+ {
+ int state = (int)thread_join_data[tid].status;
+
+ thread_join_data[tid].state = pthreads_st_none;
+ MUTEX_UNLOCK(&start_thread_mutex);
+ Perl_croak_nocontext("panic: detaching thread which could not run"
+ " due to attempt of tid reuse (state='%s')",
+ pthreads_state_string(state));
+ break;
+ }
default:
MUTEX_UNLOCK(&start_thread_mutex);
- Perl_croak_nocontext("detach: unknown thread state: '%s'",
- pthreads_states[thread_join_data[tid].state]);
+ Perl_croak_nocontext("panic: detach of a thread with unknown thread state: '%s'",
+ pthreads_state_string(thread_join_data[tid].state));
break;
}
return 0;
}
-/* This is a very bastardized version: */
+/* This is a very bastardized version; may be OK due to edge trigger of Wait */
int
os2_cond_wait(perl_cond *c, perl_mutex *m)
{
Perl_croak_nocontext("panic: COND_WAIT: rc=%i", rc);
if (rc == ERROR_INTERRUPT)
errno = EINTR;
- if (m) MUTEX_LOCK(m);
+ if (m) MUTEX_LOCK(m);
+ return 0;
}
-#endif
+#endif
+
+static int exe_is_aout(void);
/*****************************************************************************/
/* 2.1 would not resolve symbols on demand, and has no ExtLIBPATH. */
{&pmwin_handle, NULL, 875}, /* WinSetWindowPos */
{&pmwin_handle, NULL, 877}, /* WinSetWindowText */
{&pmwin_handle, NULL, 883}, /* WinShowWindow */
- {&pmwin_handle, NULL, 872}, /* WinIsWindow */
+ {&pmwin_handle, NULL, 772}, /* WinIsWindow */
{&pmwin_handle, NULL, 899}, /* WinWindowFromId */
{&pmwin_handle, NULL, 900}, /* WinWindowFromPoint */
{&pmwin_handle, NULL, 919}, /* WinPostMsg */
+ {&pmwin_handle, NULL, 735}, /* WinEnableWindow */
+ {&pmwin_handle, NULL, 736}, /* WinEnableWindowUpdate */
+ {&pmwin_handle, NULL, 773}, /* WinIsWindowEnabled */
+ {&pmwin_handle, NULL, 774}, /* WinIsWindowShowing */
+ {&pmwin_handle, NULL, 775}, /* WinIsWindowVisible */
+ {&pmwin_handle, NULL, 839}, /* WinQueryWindowPtr */
+ {&pmwin_handle, NULL, 843}, /* WinQueryWindowULong */
+ {&pmwin_handle, NULL, 844}, /* WinQueryWindowUShort */
+ {&pmwin_handle, NULL, 874}, /* WinSetWindowBits */
+ {&pmwin_handle, NULL, 876}, /* WinSetWindowPtr */
+ {&pmwin_handle, NULL, 878}, /* WinSetWindowULong */
+ {&pmwin_handle, NULL, 879}, /* WinSetWindowUShort */
+ {&pmwin_handle, NULL, 813}, /* WinQueryDesktopWindow */
+ {&pmwin_handle, NULL, 851}, /* WinSetActiveWindow */
+ {&doscalls_handle, NULL, 360}, /* DosQueryModFromEIP */
};
static PFN ExtFCN[C_ARR_LEN(loadOrdinals)]; /* Labeled by ord ORD_*. */
if (pDosVerifyPidTid) { /* Warp3 or later */
/* Up to some fixpak QuerySysState() kills the system if a non-existent
pid is used. */
- if (!pDosVerifyPidTid(pid, 1))
+ if (CheckOSError(pDosVerifyPidTid(pid, 1)))
return 0;
}
New(1322, pbuffer, buf_len, char);
/*****************************************************************************/
/* spawn */
+int emx_runtime_init; /* If 1, we need to manually init it */
+int emx_exception_init; /* If 1, we need to manually set it */
+
/* There is no big sense to make it thread-specific, since signals
are delivered to thread 1 only. XXXX Maybe make it into an array? */
static int spawn_pid;
#endif
}
-#define EXECF_SPAWN 0
-#define EXECF_EXEC 1
-#define EXECF_TRUEEXEC 2
-#define EXECF_SPAWN_NOWAIT 3
-#define EXECF_SPAWN_BYFLAG 4
+enum execf_t {
+ EXECF_SPAWN,
+ EXECF_EXEC,
+ EXECF_TRUEEXEC,
+ EXECF_SPAWN_NOWAIT,
+ EXECF_SPAWN_BYFLAG,
+ EXECF_SYNC
+};
/* const char* const ptypes[] = { "FS", "DOS", "VIO", "PM", "DETACH" }; */
/* Spawn/exec a program, revert to shell if needed. */
/* global PL_Argv[] contains arguments. */
+extern ULONG _emx_exception ( EXCEPTIONREPORTRECORD *,
+ EXCEPTIONREGISTRATIONRECORD *,
+ CONTEXTRECORD *,
+ void *);
+
int
do_spawn_ve(pTHX_ SV *really, U32 flag, U32 execf, char *inicmd, U32 addflag)
{
if (strEQ(PL_Argv[0],"/bin/sh"))
PL_Argv[0] = PL_sh_path;
- if (PL_Argv[0][0] != '/' && PL_Argv[0][0] != '\\'
- && !(PL_Argv[0][0] && PL_Argv[0][1] == ':'
- && (PL_Argv[0][2] == '/' || PL_Argv[0][2] != '\\'))
- ) /* will spawnvp use PATH? */
- TAINT_ENV(); /* testing IFS here is overkill, probably */
/* We should check PERL_SH* and PERLLIB_* as well? */
if (!really || !*(tmps = SvPV(really, n_a)))
tmps = PL_Argv[0];
+ if (tmps[0] != '/' && tmps[0] != '\\'
+ && !(tmps[0] && tmps[1] == ':'
+ && (tmps[2] == '/' || tmps[2] != '\\'))
+ ) /* will spawnvp use PATH? */
+ TAINT_ENV(); /* testing IFS here is overkill, probably */
reread:
force_shell = 0;
if (flag == P_NOWAIT)
flag = P_PM;
else if ((flag & 7) != P_PM && (flag & 7) != P_SESSION)
- Perl_warner(aTHX_ WARN_EXEC, "Starting PM process with flag=%d, mytype=%d",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Starting PM process with flag=%d, mytype=%d",
flag, os2_mytype);
}
}
if (flag == P_NOWAIT)
flag = P_SESSION;
else if ((flag & 7) != P_SESSION)
- Perl_warner(aTHX_ WARN_EXEC, "Starting Full Screen process with flag=%d, mytype=%d",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Starting Full Screen process with flag=%d, mytype=%d",
flag, os2_mytype);
}
}
rc = spawnvp(trueflag | P_OVERLAY,tmps,PL_Argv);
else if (execf == EXECF_SPAWN_NOWAIT)
rc = spawnvp(flag,tmps,PL_Argv);
+ else if (execf == EXECF_SYNC)
+ rc = spawnvp(trueflag,tmps,PL_Argv);
else /* EXECF_SPAWN, EXECF_SPAWN_BYFLAG */
rc = result(aTHX_ trueflag,
spawnvp(flag,tmps,PL_Argv));
}
if (PerlIO_close(file) != 0) { /* Failure */
panic_file:
- Perl_warner(aTHX_ WARN_EXEC, "Error reading \"%s\": %s",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Error reading \"%s\": %s",
scr, Strerror(errno));
buf = ""; /* Not #! */
goto doshell_args;
*s++ = 0;
}
if (nargs == -1) {
- Perl_warner(aTHX_ WARN_EXEC, "Too many args on %.*s line of \"%s\"",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Too many args on %.*s line of \"%s\"",
s1 - buf, buf, scr);
nargs = 4;
argsp = fargs;
}
}
if (rc < 0 && ckWARN(WARN_EXEC))
- Perl_warner(aTHX_ WARN_EXEC, "Can't %s \"%s\": %s\n",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't %s \"%s\": %s\n",
((execf != EXECF_EXEC && execf != EXECF_TRUEEXEC)
? "spawn" : "exec"),
PL_Argv[0], Strerror(errno));
should be smart enough to start itself gloriously. */
doshell:
if (execf == EXECF_TRUEEXEC)
- rc = execl(shell,shell,copt,cmd,(char*)0);
+ rc = execl(shell,shell,copt,cmd,(char*)0);
else if (execf == EXECF_EXEC)
rc = spawnl(P_OVERLAY,shell,shell,copt,cmd,(char*)0);
else if (execf == EXECF_SPAWN_NOWAIT)
rc = spawnl(flag,shell,shell,copt,cmd,(char*)0);
else {
/* In the ak code internal P_NOWAIT is P_WAIT ??? */
- rc = result(aTHX_ P_WAIT,
- spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0));
+ if (execf == EXECF_SYNC)
+ rc = spawnl(P_WAIT,shell,shell,copt,cmd,(char*)0);
+ else
+ rc = result(aTHX_ P_WAIT,
+ spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0));
if (rc < 0 && ckWARN(WARN_EXEC))
- Perl_warner(aTHX_ WARN_EXEC, "Can't %s \"%s\": %s",
+ Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't %s \"%s\": %s",
(execf == EXECF_SPAWN ? "spawn" : "exec"),
shell, Strerror(errno));
if (rc < 0)
#if OS2_STAT_HACK
+enum os2_stat_extra { /* EMX 0.9d fix 4 defines up to 0100000 */
+ os2_stat_archived = 0x1000000, /* 0100000000 */
+ os2_stat_hidden = 0x2000000, /* 0200000000 */
+ os2_stat_system = 0x4000000, /* 0400000000 */
+ os2_stat_force = 0x8000000, /* Do not ignore flags on chmod */
+};
+
+#define OS2_STAT_SPECIAL (os2_stat_system | os2_stat_archived | os2_stat_hidden)
+
+static void
+massage_os2_attr(struct stat *st)
+{
+ if ( ((st->st_mode & S_IFMT) != S_IFREG
+ && (st->st_mode & S_IFMT) != S_IFDIR)
+ || !(st->st_attr & (FILE_ARCHIVED | FILE_HIDDEN | FILE_SYSTEM)))
+ return;
+
+ if ( st->st_attr & FILE_ARCHIVED )
+ st->st_mode |= (os2_stat_archived | os2_stat_force);
+ if ( st->st_attr & FILE_HIDDEN )
+ st->st_mode |= (os2_stat_hidden | os2_stat_force);
+ if ( st->st_attr & FILE_SYSTEM )
+ st->st_mode |= (os2_stat_system | os2_stat_force);
+}
+
/* First attempt used DosQueryFSAttach which crashed the system when
used with 5.001. Now just look for /dev/. */
-
int
os2_stat(const char *name, struct stat *st)
{
static int ino = SHRT_MAX;
-
- if (stricmp(name, "/dev/con") != 0
- && stricmp(name, "/dev/tty") != 0)
- return stat(name, st);
+ STRLEN l = strlen(name);
+
+ if ( ( l < 8 || l > 9) || strnicmp(name, "/dev/", 5) != 0
+ || ( stricmp(name + 5, "con") != 0
+ && stricmp(name + 5, "tty") != 0
+ && stricmp(name + 5, "nul") != 0
+ && stricmp(name + 5, "null") != 0) ) {
+ int s = stat(name, st);
+
+ if (s)
+ return s;
+ massage_os2_attr(st);
+ return 0;
+ }
memset(st, 0, sizeof *st);
st->st_mode = S_IFCHR|0666;
return 0;
}
+int
+os2_fstat(int handle, struct stat *st)
+{
+ int s = fstat(handle, st);
+
+ if (s)
+ return s;
+ massage_os2_attr(st);
+ return 0;
+}
+
+#undef chmod
+int
+os2_chmod (const char *name, int pmode) /* Modelled after EMX src/lib/io/chmod.c */
+{
+ int attr, rc;
+
+ if (!(pmode & os2_stat_force))
+ return chmod(name, pmode);
+
+ attr = __chmod (name, 0, 0); /* Get attributes */
+ if (attr < 0)
+ return -1;
+ if (pmode & S_IWRITE)
+ attr &= ~FILE_READONLY;
+ else
+ attr |= FILE_READONLY;
+ /* New logic */
+ attr &= ~(FILE_ARCHIVED | FILE_HIDDEN | FILE_SYSTEM);
+
+ if ( pmode & os2_stat_archived )
+ attr |= FILE_ARCHIVED;
+ if ( pmode & os2_stat_hidden )
+ attr |= FILE_HIDDEN;
+ if ( pmode & os2_stat_system )
+ attr |= FILE_SYSTEM;
+
+ rc = __chmod (name, 1, attr);
+ if (rc >= 0) rc = 0;
+ return rc;
+}
+
#endif
#ifdef USE_PERL_SBRK
}
avlen --;
}
-#ifdef USE_THREADS
- sum++; /* Avoid conflict of DLLs in memory. */
-#endif
/* We always load modules as *specific* DLLs, and with the full name.
When loading a specific DLL by its full name, one cannot get a
different DLL, even if a DLL with the same basename is loaded already.
char *
os2error(int rc)
{
+ dTHX;
static char buf[300];
ULONG len;
char *s;
return buf;
}
+void
+ResetWinError(void)
+{
+ WinError_2_Perl_rc;
+}
+
+void
+CroakWinError(int die, char *name)
+{
+ FillWinError;
+ if (die && Perl_rc) {
+ dTHX;
+
+ Perl_croak(aTHX_ "%s: %s", (name ? name : "Win* API call"), os2error(Perl_rc));
+ }
+}
+
char *
os2_execname(pTHX)
{
HMQ
Perl_Register_MQ(int serve)
{
+ if (Perl_hmq_refcnt <= 0) {
PPIB pib;
PTIB tib;
- if (Perl_os2_initial_mode++)
- return Perl_hmq;
+ Perl_hmq_refcnt = 0; /* Be extra safe */
DosGetInfoBlocks(&tib, &pib);
Perl_os2_initial_mode = pib->pib_ultype;
/* Try morphing into a PM application. */
/* 64 messages if before OS/2 3.0, ignored otherwise */
Perl_hmq = (*PMWIN_entries.CreateMsgQueue)(perl_hab_GET(), 64);
if (!Perl_hmq) {
+ dTHX;
static int cnt;
SAVEINT(cnt); /* Allow catch()ing. */
_exit(188); /* Panic can try to create a window. */
Perl_croak_nocontext("Cannot create a message queue, or morph to a PM application");
}
+ }
if (serve) {
if ( Perl_hmq_servers <= 0 /* Safe to inform us on shutdown, */
&& Perl_hmq_refcnt > 0 ) /* this was switched off before... */
RETVAL = _getcwd2(p, MAXPATHLEN);
ST(0) = sv_newmortal();
sv_setpv((SV*)ST(0), RETVAL);
+#ifndef INCOMPLETE_TAINTS
+ SvTAINTED_on(ST(0));
+#endif
}
XSRETURN(1);
}
XSRETURN(1);
}
+/* Input: Address, BufLen
+APIRET APIENTRY
+DosQueryModFromEIP (HMODULE * hmod, ULONG * obj, ULONG BufLen, PCHAR Buf,
+ ULONG * Offset, ULONG Address);
+*/
+
+DeclOSFuncByORD(APIRET, _DosQueryModFromEIP,ORD_DosQueryModFromEIP,
+ (HMODULE * hmod, ULONG * obj, ULONG BufLen, PCHAR Buf,
+ ULONG * Offset, ULONG Address),
+ (hmod, obj, BufLen, Buf, Offset, Address))
+
+enum module_name_how { mod_name_handle, mod_name_shortname, mod_name_full};
+
+static SV*
+module_name_at(void *pp, enum module_name_how how)
+{
+ dTHX;
+ char buf[MAXPATHLEN];
+ char *p = buf;
+ HMODULE mod;
+ ULONG obj, offset, rc;
+
+ if (!_DosQueryModFromEIP(&mod, &obj, sizeof(buf), buf, &offset, (ULONG)pp))
+ return &PL_sv_undef;
+ if (how == mod_name_handle)
+ return newSVuv(mod);
+ /* Full name... */
+ if ( how == mod_name_full
+ && CheckOSError(DosQueryModuleName(mod, sizeof(buf), buf)) )
+ return &PL_sv_undef;
+ while (*p) {
+ if (*p == '\\')
+ *p = '/';
+ p++;
+ }
+ return newSVpv(buf, 0);
+}
+
+static SV*
+module_name_of_cv(SV *cv, enum module_name_how how)
+{
+ if (!cv || !SvROK(cv) || SvTYPE(SvRV(cv)) != SVt_PVCV || !CvXSUB(SvRV(cv))) {
+ dTHX;
+
+ Perl_croak(aTHX_ "Not an XSUB reference");
+ }
+ return module_name_at(CvXSUB(SvRV(cv)), how);
+}
+
+/* Find module name to which *this* subroutine is compiled */
+#define module_name(how) module_name_at(&module_name_at, how)
+
+XS(XS_OS2_DLLname)
+{
+ dXSARGS;
+ if (items > 2)
+ Perl_croak(aTHX_ "Usage: OS2::DLLname( [ how, [\\&xsub] ] )");
+ {
+ SV * RETVAL;
+ int how;
+
+ if (items < 1)
+ how = mod_name_full;
+ else {
+ how = (int)SvIV(ST(0));
+ }
+ if (items < 2)
+ RETVAL = module_name(how);
+ else
+ RETVAL = module_name_of_cv(ST(1), how);
+ ST(0) = RETVAL;
+ sv_2mortal(ST(0));
+ }
+ XSRETURN(1);
+}
+
#define get_control87() _control87(0,0)
#define set_control87 _control87
{
dXSARGS;
if (items != 2)
- croak("Usage: OS2::_control87(new,mask)");
+ Perl_croak(aTHX_ "Usage: OS2::_control87(new,mask)");
{
unsigned new = (unsigned)SvIV(ST(0));
unsigned mask = (unsigned)SvIV(ST(1));
{
dXSARGS;
if (items != 0)
- croak("Usage: OS2::get_control87()");
+ Perl_croak(aTHX_ "Usage: OS2::get_control87()");
{
unsigned RETVAL;
{
dXSARGS;
if (items < 0 || items > 2)
- croak("Usage: OS2::set_control87(new=MCW_EM, mask=MCW_EM)");
+ Perl_croak(aTHX_ "Usage: OS2::set_control87(new=MCW_EM, mask=MCW_EM)");
{
unsigned new;
unsigned mask;
newXSproto("OS2::_control87", XS_OS2__control87, file, "$$");
newXSproto("OS2::get_control87", XS_OS2_get_control87, file, "");
newXSproto("OS2::set_control87", XS_OS2_set_control87, file, ";$$");
+ newXSproto("OS2::DLLname", XS_OS2_DLLname, file, ";$$");
gv = gv_fetchpv("OS2::is_aout", TRUE, SVt_PV);
GvMULTI_on(gv);
#ifdef PERL_IS_AOUT
sv_setiv(GvSV(gv), 1);
-#endif
+#endif
+ gv = gv_fetchpv("OS2::can_fork", TRUE, SVt_PV);
+ GvMULTI_on(gv);
+ sv_setiv(GvSV(gv), exe_is_aout());
gv = gv_fetchpv("OS2::emx_rev", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setiv(GvSV(gv), _emx_rev);
OS2_Perl_data_t OS2_Perl_data;
+extern void _emx_init(void*);
+
+static void jmp_out_of_atexit(void);
+
+#define FORCE_EMX_INIT_CONTRACT_ARGV 1
+#define FORCE_EMX_INIT_INSTALL_ATEXIT 2
+
+static void
+my_emx_init(void *layout) {
+ static volatile void *p = 0; /* Cannot be on stack! */
+
+ /* Can't just call emx_init(), since it moves the stack pointer */
+ /* It also busts a lot of registers, so be extra careful */
+ __asm__( "pushf\n"
+ "pusha\n"
+ "movl %%esp, %1\n"
+ "push %0\n"
+ "call __emx_init\n"
+ "movl %1, %%esp\n"
+ "popa\n"
+ "popf\n" : : "r" (layout), "m" (p) );
+}
+
+struct layout_table_t {
+ ULONG text_base;
+ ULONG text_end;
+ ULONG data_base;
+ ULONG data_end;
+ ULONG bss_base;
+ ULONG bss_end;
+ ULONG heap_base;
+ ULONG heap_end;
+ ULONG heap_brk;
+ ULONG heap_off;
+ ULONG os2_dll;
+ ULONG stack_base;
+ ULONG stack_end;
+ ULONG flags;
+ ULONG reserved[2];
+ char options[64];
+};
+
+static ULONG
+my_os_version() {
+ static ULONG res; /* Cannot be on stack! */
+
+ /* Can't just call __os_version(), since it does not follow C
+ calling convention: it busts a lot of registers, so be extra careful */
+ __asm__( "pushf\n"
+ "pusha\n"
+ "call ___os_version\n"
+ "movl %%eax, %0\n"
+ "popa\n"
+ "popf\n" : "=m" (res) );
+
+ return res;
+}
+
+static void
+force_init_emx_runtime(EXCEPTIONREGISTRATIONRECORD *preg, ULONG flags)
+{
+ /* Calling emx_init() will bust the top of stack: it installs an
+ exception handler and puts argv data there. */
+ char *oldarg, *oldenv;
+ void *oldstackend, *oldstack;
+ PPIB pib;
+ PTIB tib;
+ static ULONG os2_dll;
+ ULONG rc, error = 0, out;
+ char buf[512];
+ static struct layout_table_t layout_table;
+ struct {
+ char buf[48*1024]; /* _emx_init() requires 32K, cmd.exe has 64K only */
+ double alignment1;
+ EXCEPTIONREGISTRATIONRECORD xreg;
+ } *newstack;
+ char *s;
+
+ layout_table.os2_dll = (ULONG)&os2_dll;
+ layout_table.flags = 0x02000002; /* flags: application, OMF */
+
+ DosGetInfoBlocks(&tib, &pib);
+ oldarg = pib->pib_pchcmd;
+ oldenv = pib->pib_pchenv;
+ oldstack = tib->tib_pstack;
+ oldstackend = tib->tib_pstacklimit;
+
+ /* Minimize the damage to the stack via reducing the size of argv. */
+ if (flags & FORCE_EMX_INIT_CONTRACT_ARGV) {
+ pib->pib_pchcmd = "\0\0"; /* Need 3 concatenated strings */
+ pib->pib_pchcmd = "\0"; /* Ended by an extra \0. */
+ }
+
+ newstack = alloca(sizeof(*newstack));
+ /* Emulate the stack probe */
+ s = ((char*)newstack) + sizeof(*newstack);
+ while (s > (char*)newstack) {
+ s[-1] = 0;
+ s -= 4096;
+ }
+
+ /* Reassigning stack is documented to work */
+ tib->tib_pstack = (void*)newstack;
+ tib->tib_pstacklimit = (void*)((char*)newstack + sizeof(*newstack));
+
+ /* Can't just call emx_init(), since it moves the stack pointer */
+ my_emx_init((void*)&layout_table);
+
+ /* Remove the exception handler, cannot use it - too low on the stack.
+ Check whether it is inside the new stack. */
+ buf[0] = 0;
+ if (tib->tib_pexchain >= tib->tib_pstacklimit
+ || tib->tib_pexchain < tib->tib_pstack) {
+ error = 1;
+ sprintf(buf,
+ "panic: ExceptionHandler misplaced: not %#lx <= %#lx < %#lx\n",
+ (unsigned long)tib->tib_pstack,
+ (unsigned long)tib->tib_pexchain,
+ (unsigned long)tib->tib_pstacklimit);
+ goto finish;
+ }
+ if (tib->tib_pexchain != &(newstack->xreg)) {
+ sprintf(buf, "ExceptionHandler misplaced: %#lx != %#lx\n",
+ (unsigned long)tib->tib_pexchain,
+ (unsigned long)&(newstack->xreg));
+ }
+ rc = DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)tib->tib_pexchain);
+ if (rc)
+ sprintf(buf + strlen(buf),
+ "warning: DosUnsetExceptionHandler rc=%#lx=%lu\n", rc, rc);
+
+ if (preg) {
+ /* ExceptionRecords should be on stack, in a correct order. Sigh... */
+ preg->prev_structure = 0;
+ preg->ExceptionHandler = _emx_exception;
+ rc = DosSetExceptionHandler(preg);
+ if (rc) {
+ sprintf(buf + strlen(buf),
+ "warning: DosSetExceptionHandler rc=%#lx=%lu\n", rc, rc);
+ DosWrite(2, buf, strlen(buf), &out);
+ emx_exception_init = 1; /* Do it around spawn*() calls */
+ }
+ } else
+ emx_exception_init = 1; /* Do it around spawn*() calls */
+
+ finish:
+ /* Restore the damage */
+ pib->pib_pchcmd = oldarg;
+ pib->pib_pchcmd = oldenv;
+ tib->tib_pstacklimit = oldstackend;
+ tib->tib_pstack = oldstack;
+ emx_runtime_init = 1;
+ if (buf[0])
+ DosWrite(2, buf, strlen(buf), &out);
+ if (error)
+ exit(56);
+}
+
+jmp_buf at_exit_buf;
+int longjmp_at_exit;
+
+static void
+jmp_out_of_atexit(void)
+{
+ if (longjmp_at_exit)
+ longjmp(at_exit_buf, 1);
+}
+
+extern void _CRT_term(void);
+
+int emx_runtime_secondary;
+
+void
+Perl_OS2_term(void **p, int exitstatus, int flags)
+{
+ if (!emx_runtime_secondary)
+ return;
+
+ /* The principal executable is not running the same CRTL, so there
+ is nobody to shutdown *this* CRTL except us... */
+ if (flags & FORCE_EMX_DEINIT_EXIT) {
+ if (p && !emx_exception_init)
+ DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)p);
+ /* Do not run the executable's CRTL's termination routines */
+ exit(exitstatus); /* Run at-exit, flush buffers, etc */
+ }
+ /* Run at-exit list, and jump out at the end */
+ if ((flags & FORCE_EMX_DEINIT_RUN_ATEXIT) && !setjmp(at_exit_buf)) {
+ longjmp_at_exit = 1;
+ exit(exitstatus); /* The first pass through "if" */
+ }
+
+ /* Get here if we managed to jump out of exit(), or did not run atexit. */
+ longjmp_at_exit = 0; /* Maybe exit() is called again? */
+#if 0 /* _atexit_n is not exported */
+ if (flags & FORCE_EMX_DEINIT_RUN_ATEXIT)
+ _atexit_n = 0; /* Remove the atexit() handlers */
+#endif
+ /* Will segfault on program termination if we leave this dangling... */
+ if (p && !emx_exception_init)
+ DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)p);
+ /* Typically there is no need to do this, done from _DLL_InitTerm() */
+ if (flags & FORCE_EMX_DEINIT_CRT_TERM)
+ _CRT_term(); /* Flush buffers, etc. */
+ /* Now it is a good time to call exit() in the caller's CRTL... */
+}
+
+#include <emx/startup.h>
+
+extern ULONG __os_version(); /* See system.doc */
+
+static int emx_wasnt_initialized;
+
+void
+check_emx_runtime(char **env, EXCEPTIONREGISTRATIONRECORD *preg)
+{
+ ULONG v_crt, v_emx;
+
+ /* If _environ is not set, this code sits in a DLL which
+ uses a CRT DLL which not compatible with the executable's
+ CRT library. Some parts of the DLL are not initialized.
+ */
+ if (_environ != NULL)
+ return; /* Properly initialized */
+
+ /* If the executable does not use EMX.DLL, EMX.DLL is not completely
+ initialized either. Uninitialized EMX.DLL returns 0 in the low
+ nibble of __os_version(). */
+ v_emx = my_os_version();
+
+ /* _osmajor and _osminor are normally set in _DLL_InitTerm of CRT DLL
+ (=>_CRT_init=>_entry2) via a call to __os_version(), then
+ reset when the EXE initialization code calls _text=>_init=>_entry2.
+ The first time they are wrongly set to 0; the second time the
+ EXE initialization code had already called emx_init=>initialize1
+ which correctly set version_major, version_minor used by
+ __os_version(). */
+ v_crt = (_osmajor | _osminor);
+
+ if ((_emx_env & 0x200) && !(v_emx & 0xFFFF)) { /* OS/2, EMX uninit. */
+ force_init_emx_runtime( preg,
+ FORCE_EMX_INIT_CONTRACT_ARGV
+ | FORCE_EMX_INIT_INSTALL_ATEXIT );
+ emx_wasnt_initialized = 1;
+ /* Update CRTL data basing on now-valid EMX runtime data */
+ if (!v_crt) { /* The only wrong data are the versions. */
+ v_emx = my_os_version(); /* *Now* it works */
+ *(unsigned char *)&_osmajor = v_emx & 0xFF; /* Cast out const */
+ *(unsigned char *)&_osminor = (v_emx>>8) & 0xFF;
+ }
+ }
+ emx_runtime_secondary = 1;
+ /* if (flags & FORCE_EMX_INIT_INSTALL_ATEXIT) */
+ atexit(jmp_out_of_atexit); /* Allow run of atexit() w/o exit() */
+
+ if (env == NULL) { /* Fetch from the process info block */
+ int c = 0;
+ PPIB pib;
+ PTIB tib;
+ char *e, **ep;
+
+ DosGetInfoBlocks(&tib, &pib);
+ e = pib->pib_pchenv;
+ while (*e) { /* Get count */
+ c++;
+ e = e + strlen(e) + 1;
+ }
+ New(1307, env, c + 1, char*);
+ ep = env;
+ e = pib->pib_pchenv;
+ while (c--) {
+ *ep++ = e;
+ e = e + strlen(e) + 1;
+ }
+ *ep = NULL;
+ }
+ _environ = _org_environ = env;
+}
+
+#define ENTRY_POINT 0x10000
+
+static int
+exe_is_aout(void)
+{
+ struct layout_table_t *layout;
+ if (emx_wasnt_initialized)
+ return 0;
+ /* Now we know that the principal executable is an EMX application
+ - unless somebody did already play with delayed initialization... */
+ /* With EMX applications to determine whether it is AOUT one needs
+ to examine the start of the executable to find "layout" */
+ if ( *(unsigned char*)ENTRY_POINT != 0x68 /* PUSH n */
+ || *(unsigned char*)(ENTRY_POINT+5) != 0xe8 /* CALL */
+ || *(unsigned char*)(ENTRY_POINT+10) != 0xeb /* JMP */
+ || *(unsigned char*)(ENTRY_POINT+12) != 0xe8) /* CALL */
+ return 0; /* ! EMX executable */
+ /* Fix alignment */
+ Copy((char*)(ENTRY_POINT+1), &layout, 1, struct layout_table_t*);
+ return !(layout->flags & 2);
+}
+
void
Perl_OS2_init(char **env)
{
+ Perl_OS2_init3(env, 0, 0);
+}
+
+void
+Perl_OS2_init3(char **env, void **preg, int flags)
+{
char *shell;
+ _uflags (_UF_SBRK_MODEL, _UF_SBRK_ARBITRARY);
MALLOC_INIT;
+
+ check_emx_runtime(env, (EXCEPTIONREGISTRATIONRECORD *)preg);
+
settmppath();
OS2_Perl_data.xs_init = &Xs_OS2_init;
- _uflags (_UF_SBRK_MODEL, _UF_SBRK_ARBITRARY);
- if (environ == NULL && env) {
- environ = env;
- }
if ( (shell = getenv("PERL_SH_DRIVE")) ) {
New(1304, PL_sh_path, strlen(SH_PATH) + 1, char);
strcpy(PL_sh_path, SH_PATH);
if (PL_sh_path[i] == '\\') PL_sh_path[i] = '/';
}
}
+#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
MUTEX_INIT(&start_thread_mutex);
+#endif
os2_mytype = my_type(); /* Do it before morphing. Needed? */
/* Some DLLs reset FP flags on load. We may have been linked with them */
_control87(MCW_EM, MCW_EM);
#undef rmdir
+/* EMX flavors do not tolerate trailing slashes. t/op/mkdir.t has many
+ trailing slashes, so we need to support this as well. */
+
int
my_rmdir (__const__ char *s)
{
- char buf[MAXPATHLEN];
+ char b[MAXPATHLEN];
+ char *buf = b;
STRLEN l = strlen(s);
+ int rc;
- if (s[l-1] == '/' || s[l-1] == '\\') { /* EMX rmdir fails... */
+ if (s[l-1] == '/' || s[l-1] == '\\') { /* EMX mkdir fails... */
+ if (l >= sizeof b)
+ New(1305, buf, l + 1, char);
strcpy(buf,s);
- buf[l - 1] = 0;
+ while (l > 1 && (s[l-1] == '/' || s[l-1] == '\\'))
+ l--;
+ buf[l] = 0;
s = buf;
}
- return rmdir(s);
+ rc = rmdir(s);
+ if (b != buf)
+ Safefree(buf);
+ return rc;
}
#undef mkdir
int
my_mkdir (__const__ char *s, long perm)
{
- char buf[MAXPATHLEN];
+ char b[MAXPATHLEN];
+ char *buf = b;
STRLEN l = strlen(s);
+ int rc;
if (s[l-1] == '/' || s[l-1] == '\\') { /* EMX mkdir fails... */
+ if (l >= sizeof b)
+ New(1305, buf, l + 1, char);
strcpy(buf,s);
- buf[l - 1] = 0;
+ while (l > 1 && (s[l-1] == '/' || s[l-1] == '\\'))
+ l--;
+ buf[l] = 0;
s = buf;
}
- return mkdir(s, perm);
+ rc = mkdir(s, perm);
+ if (b != buf)
+ Safefree(buf);
+ return rc;
}
#undef flock
if (!(_emx_env & 0x200) || !use_my)
return flock(handle, o); /* Delegate to EMX. */
- // is this a file?
+ /* is this a file? */
if ((DosQueryHType(handle, &handle_type, &flag_word) != 0) ||
(handle_type & 0xFF))
{
errno = EBADF;
return -1;
}
- // set lock/unlock ranges
+ /* set lock/unlock ranges */
rNull.lOffset = rNull.lRange = rFull.lOffset = 0;
rFull.lRange = 0x7FFFFFFF;
- // set timeout for blocking
+ /* set timeout for blocking */
timeout = ((blocking = !(o & LOCK_NB))) ? 100 : 1;
- // shared or exclusive?
+ /* shared or exclusive? */
shared = (o & LOCK_SH) ? 1 : 0;
- // do not block the unlock
+ /* do not block the unlock */
if (o & (LOCK_UN | LOCK_SH | LOCK_EX)) {
rc = DosSetFileLocks(handle, &rFull, &rNull, timeout, shared);
switch (rc) {
errno = ENOLCK;
return -1;
case ERROR_LOCK_VIOLATION:
- break; // not an error
+ break; /* not an error */
case ERROR_INVALID_PARAMETER:
case ERROR_ATOMIC_LOCK_NOT_SUPPORTED:
case ERROR_READ_LOCKS_NOT_SUPPORTED:
return -1;
}
}
- // lock may block
+ /* lock may block */
if (o & (LOCK_SH | LOCK_EX)) {
- // for blocking operations
+ /* for blocking operations */
for (;;) {
rc =
DosSetFileLocks(
errno = EINVAL;
return -1;
}
- // give away timeslice
+ /* give away timeslice */
DosSleep(1);
}
}
if (!use_my_pwent())
return getpwent(); /* Delegate to EMX. */
if (pwent_cnt++)
- return 0; // Return one entry only
+ return 0; /* Return one entry only */
return getpwuid(0);
}
getgrent (void)
{
if (grent_cnt++)
- return 0; // Return one entry only
+ return 0; /* Return one entry only */
return getgrgid(0);
}
{
return passw_wrap(getpwnam(n));
}
+
+char *
+gcvt_os2 (double value, int digits, char *buffer)
+{
+ return gcvt (value, digits, buffer);
+}
+
+#undef fork
+int fork_with_resources()
+{
+#if (defined(USE_5005THREADS) || defined(USE_ITHREADS)) && !defined(USE_SLOW_THREAD_SPECIFIC)
+ dTHX;
+ void *ctx = PERL_GET_CONTEXT;
+#endif
+
+ int rc = fork();
+
+#if (defined(USE_5005THREADS) || defined(USE_ITHREADS)) && !defined(USE_SLOW_THREAD_SPECIFIC)
+ if (rc == 0) { /* child */
+ ALLOC_THREAD_KEY; /* Acquire the thread-local memory */
+ PERL_SET_CONTEXT(ctx); /* Reinit the thread-local memory */
+ }
+#endif
+ return rc;
+}