Merge 7.0 into rtems5

configure/CONFIG_COMMON

@@ -71,6 +71,8 @@ INSTALL_DBD                 = $(INSTALL_LOCATION)/dbd
 INSTALL_DB                  = $(INSTALL_LOCATION)/db
 INSTALL_CONFIG              = $(INSTALL_LOCATION)/configure
 
+FINAL_LOCATION = $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION))
+
 # Directory for OS independant build created files
 COMMON_DIR = ../O.Common
 

configure/CONFIG_SITE

@@ -155,6 +155,14 @@ CROSS_WARN=YES
 #  different location then uncomment and set this.
 #INSTALL_LOCATION=<fullpathname>
 
+# The location from which files placed in INSTALL_LOCATION will actually run.
+# This path is compiled into executables, and so should be an absolute.
+#  May be used to achieve the effect of autotools.  eg.
+#   ./configure --prefix=<FINAL_LOCATION>
+#   make DESTDIR=<INSTALL_LOCATION>
+# Defaults to the absolute expansion of $(INSTALL_LOCATION)
+#FINAL_LOCATION=
+
 # Use POSIX thread priority scheduling (if available).
 #  Must be either YES or NO
 USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES

documentation/RELEASE_NOTES.md

@@ -17,6 +17,61 @@ should also be read to understand what has changed since earlier releases.
 
 <!-- Insert new items immediately below here ... -->
 
+### epicsEnvShow accepts glob pattern
+
+The optional argument to epicsEnvShow can now be a glob pattern.
+
+### New function `epicsStrnGlobMatch()`
+
+The function `epicsStrnGlobMatch(char* str, size_t len, char* pattern)`
+works exactly the same as `epicsStrGlobMatch()` but takes an additional
+length arguments which limits the number of characters of `str` to match.
+
+### Automatic fallback to thread when unable to exec caRepeater
+
+A process using libca which does not find an existing caRepeater process
+will attempt to start one by running the caRepeater executable.
+This is not always possible, usually when caRepeater is not in `$PATH`.
+Now, instead of printing a warning, an internal caRepeater thread
+will be started (as is done be RTEMS and vxWorks targets).
+
+If this fallback occurs, the lifetime of the caRepeater thread
+may be shorter than the lifetime of a separate caRepeater process
+would have been.
+
+It remains the recommended practice to explicitly start a caRepeater
+instance.  Examples of both systemd (`caRepeater.service`) and sysv
+(`S99caRepeater`) scripts may be found under `bin/`.
+
+### Glob pattern allowed in `var` command
+
+When used with one argument, the `var` command can be used with a glob pattern
+for printing matching variables.
+
+### Formalize/fix `FINAL_LOCATION`
+
+The `FINAL_LOCATION` make variable has for some time been an undocumented
+means of performing a staged build.  This is a build which "installs" to
+a temporary location, which will later be moved to a final location.
+
+This has now been added to `configure/CONFIG_SITE`.
+
+Usage analogous to the autotools recipe
+
+```sh
+./configure --prefix=/usr/lib/epics
+make install DESTDIR=/tmp/build
+```
+
+would be
+
+```sh
+make INSTALL_LOCATION=/tmp/build FINAL_LOCATION=/usr/lib/epics
+```
+
+`FINAL_LOCATION` is now correctly used in systemd and sysv init scripts
+`caRepeater.service`, `S99caRepeater`, and `S99logServer`.
+
 ### IOCsh sets `${PWD}`
 
 IOC shell will now ensure `${PWD}` is set on startup,

modules/ca/src/client/Makefile

@@ -113,7 +113,7 @@ SCRIPTS_Linux = caRepeater.service
 
 EXPAND += S99caRepeater@
 EXPAND += caRepeater.service@
-EXPAND_VARS = INSTALL_BIN=$(abspath $(INSTALL_BIN))
+EXPAND_VARS = INSTALL_BIN=$(FINAL_LOCATION)/bin/$(T_A)
 
 SRC_DIRS += $(CURDIR)/test
 PROD_HOST += ca_test

modules/ca/src/client/udpiiu.cpp

@@ -629,8 +629,8 @@ void epicsStdCall caStartRepeaterIfNotInstalled ( unsigned repeaterPort )
          * repeater's port)
          */
         osiSpawnDetachedProcessReturn osptr =
-            osiSpawnDetachedProcess ( "CA Repeater", "caRepeater" );
-        if ( osptr == osiSpawnDetachedProcessNoSupport ) {
+            osiSpawnDetachedProcess ( "!CA Repeater", "caRepeater" );
+        if ( osptr != osiSpawnDetachedProcessSuccess ) {
             epicsThreadId tid;
 
             tid = epicsThreadCreate ( "CAC-repeater", epicsThreadPriorityLow,
@@ -639,9 +639,6 @@ void epicsStdCall caStartRepeaterIfNotInstalled ( unsigned repeaterPort )
                 fprintf ( stderr, "caStartRepeaterIfNotInstalled : unable to create CA repeater daemon thread\n" );
             }
         }
-        else if ( osptr == osiSpawnDetachedProcessFail ) {
-            fprintf ( stderr, "caStartRepeaterIfNotInstalled (): unable to start CA repeater daemon detached process\n" );
-        }
     }
 }
 

modules/database/src/std/softIoc/Makefile

@@ -28,7 +28,5 @@ softIoc_LIBS = $(EPICS_BASE_IOC_LIBS)
 
 DB += softIocExit.db
 
-FINAL_LOCATION ?= $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION))
-
 CLEANS += epicsInstallDir.h
 

modules/database/src/std/softIoc/softMain.cpp

@@ -249,7 +249,10 @@ int main(int argc, char *argv[])
 
         } else {
             if (loadedDb || ranScript) {
-                epicsThreadExitMain();
+                // non-interactive IOC.  spin forever
+                while(true) {
+                    epicsThreadSleep(1000.0);
+                }
 
             } else {
                 usage(argv[0], dbd_file);

modules/database/src/tools/Makefile

@@ -40,7 +40,6 @@ HTMLS += dbdToHtml.html
 
 # Build Package Config Files
 
-FINAL_LOCATION ?= $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION))
 C_CFLAGS += $(filter-out -g,$(filter-out -O%,$(filter-out -W%,$(CPPFLAGS))))
 C_CFLAGS += $(filter-out -g,$(filter-out -O%,$(filter-out -W%,$(CFLAGS))))
 PKGVARS += FINAL_LOCATION OS_CLASS CMPLR_CLASS C_CFLAGS LDFLAGS LDLIBS

modules/database/test/std/rec/simmTest.c

@@ -12,9 +12,11 @@
 #include <testMain.h>
 #include <dbAccess.h>
 #include <epicsTime.h>
+#include <epicsEvent.h>
 #include <epicsThread.h>
 #include <errlog.h>
 #include <alarm.h>
+#include <callback.h>
 
 #include "recSup.h"
 #include "aiRecord.h"
@@ -414,6 +416,15 @@ void testSiolWrite(const char *name,
  * Asynchronous processing using simm:DELAY
  */
 
+static void
+ping(CALLBACK *pcb)
+{
+    epicsEventId ev;
+    callbackGetUser(ev, pcb);
+
+    epicsEventMustTrigger(ev);
+}
+
 static
 void testSimmDelay(const char *name,
                    epicsFloat64 *psdly,
@@ -422,6 +433,14 @@ void testSimmDelay(const char *name,
     epicsTimeStamp now;
     const double delay = 0.01;  /* 10 ms */
     double diff;
+    epicsEventId poked;
+    CALLBACK cb;
+
+    memset(&cb, 0, sizeof(CALLBACK));
+    poked = epicsEventMustCreate(epicsEventEmpty);
+    callbackSetCallback(ping, &cb);
+    callbackSetPriority(priorityLow, &cb);
+    callbackSetUser(poked, &cb);
 
     testDiag("## Asynchronous processing with simm:DELAY ##");
 
@@ -443,14 +462,11 @@ void testSimmDelay(const char *name,
     testdbPutFieldOk(namePROC, DBR_LONG, 0);
     testdbGetFieldEqual(namePACT, DBR_USHORT, 1);
     epicsTimeGetCurrent(&now);
-    epicsThreadSleep(1.75*delay);
-    if(testImpreciseTiming())
-        testTodoBegin("imprecise");
+    callbackRequestDelayed(&cb, 1.5 * delay);
+    epicsEventWait(poked);
     testdbGetFieldEqual(namePACT, DBR_USHORT, 0);
     diff = epicsTimeDiffInSeconds(mytime, &now);
     testOk(diff >= 0.0, "time stamp is recent (%.9f sec)", diff);
-    if(testImpreciseTiming())
-        testTodoEnd();
 
     /* Reset delay */
     *psdly = -1.;

modules/libcom/src/iocsh/iocsh.cpp

@@ -1126,17 +1126,26 @@ static void varHandler(const iocshVarDef *v, const char *setString)
 static void varCallFunc(const iocshArgBuf *args)
 {
     struct iocshVariable *v;
-    if(args[0].sval == NULL) {
+    const char *name = args[0].sval;
+    const char *value = args[1].sval;
+
+    if (!value) {
+        int found = 0;
         for (v = iocshVariableHead ; v != NULL ; v = v->next)
-            varHandler(v->pVarDef, args[1].sval);
+            if (!name || epicsStrGlobMatch(v->pVarDef->name, name) != 0) {
+                varHandler(v->pVarDef, NULL);
+                found = 1;
+            }
+        if (!found && name != NULL)
+            fprintf(epicsGetStderr(), "No var matching %s found.\n", name);
     }
     else {
         v = (iocshVariable *)registryFind(iocshVarID, args[0].sval);
         if (v == NULL) {
-            fprintf(epicsGetStderr(), "Var %s not found.\n", args[0].sval);
+            fprintf(epicsGetStderr(), "Var %s not found.\n", name);
         }
         else {
-            varHandler(v->pVarDef, args[1].sval);
+            varHandler(v->pVarDef, value);
         }
     }
 }

modules/libcom/src/log/Makefile

@@ -24,5 +24,5 @@ iocLogServer_SYS_LIBS_WIN32   += user32 ws2_32 dbghelp
 SCRIPTS_HOST = S99logServer
 
 EXPAND += S99logServer@
-EXPAND_VARS = INSTALL_BIN=$(abspath $(INSTALL_BIN))
+EXPAND_VARS = INSTALL_BIN=$(FINAL_LOCATION)/bin/$(T_A)
 

modules/libcom/src/misc/epicsString.c

@@ -23,6 +23,15 @@
 #include <errno.h>
 #include <ctype.h>
 
+#ifndef vxWorks
+#include <stdint.h>
+#else
+/* VxWorks automaticaly includes stdint.h defining SIZE_MAX in 6.9 but not earlier */
+#ifndef SIZE_MAX
+#define SIZE_MAX (size_t)-1
+#endif
+#endif
+
 #include "epicsAssert.h"
 #include "epicsStdio.h"
 #include "cantProceed.h"
@@ -259,30 +268,31 @@ size_t epicsStrnLen(const char *s, size_t maxlen)
     return i;
 }
 
-int epicsStrGlobMatch(const char *str, const char *pattern)
+int epicsStrnGlobMatch(const char *str, size_t len, const char *pattern)
 {
-    const char *cp = NULL, *mp = NULL;
+    const char *mp = NULL;
+    size_t cp = 0, i = 0;
 
-    while ((*str) && (*pattern != '*')) {
-        if ((*pattern != *str) && (*pattern != '?'))
+    while ((i < len) && (str[i]) && (*pattern != '*')) {
+        if ((*pattern != str[i]) && (*pattern != '?'))
             return 0;
         pattern++;
-        str++;
+        i++;
     }
-    while (*str) {
+    while ((i < len) && str[i]) {
         if (*pattern == '*') {
             if (!*++pattern)
                 return 1;
             mp = pattern;
-            cp = str+1;
+            cp = i+1;
         }
-        else if ((*pattern == *str) || (*pattern == '?')) {
+        else if ((*pattern == str[i]) || (*pattern == '?')) {
             pattern++;
-            str++;
+            i++;
         }
         else {
             pattern = mp;
-            str = cp++;
+            i = cp++;
         }
     }
     while (*pattern == '*')
@@ -290,6 +300,10 @@ int epicsStrGlobMatch(const char *str, const char *pattern)
     return !*pattern;
 }
 
+int epicsStrGlobMatch(const char *str, const char *pattern) {
+    return epicsStrnGlobMatch(str, SIZE_MAX, pattern);
+}
+
 char * epicsStrtok_r(char *s, const char *delim, char **lasts)
 {
    const char *spanp;

modules/libcom/src/misc/epicsString.h

@@ -36,7 +36,30 @@ LIBCOM_API char * epicsStrnDup(const char *s, size_t len);
 LIBCOM_API int epicsStrPrintEscaped(FILE *fp, const char *s, size_t n);
 #define epicsStrSnPrintEscaped epicsStrnEscapedFromRaw
 LIBCOM_API size_t epicsStrnLen(const char *s, size_t maxlen);
+
+/** Matches a string against a pattern.
+ *
+ * Checks if str matches the glob style pattern, which may contain ? or * wildcards.
+ * A ? matches any single character.
+ * A * matched any sub-string.
+ *
+ * @returns 1 if str matches the pattern, 0 if not.
+ *
+ * @since EPICS 3.14.7
+ */
 LIBCOM_API int epicsStrGlobMatch(const char *str, const char *pattern);
+
+/** Matches a string against a pattern.
+ *
+ * Like epicsStrGlobMatch but with limited string length.
+ * If the length of str is less than len, the full string is matched.
+ *
+ * @returns 1 if the first len characters of str match the pattern, 0 if not.
+ *
+ * @since UNRELEASED
+ */
+LIBCOM_API int epicsStrnGlobMatch(const char *str, size_t len, const char *pattern);
+
 LIBCOM_API char * epicsStrtok_r(char *s, const char *delim, char **lasts);
 LIBCOM_API unsigned int epicsStrHash(const char *str, unsigned int seed);
 LIBCOM_API unsigned int epicsMemHash(const char *str, size_t length,

modules/libcom/src/osi/epicsThread.h

@@ -59,6 +59,7 @@
 #include <stddef.h>
 
 #include "libComAPI.h"
+#include "compilerDependencies.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -142,8 +143,12 @@ LIBCOM_API void epicsThreadRealtimeLock(void);
  * call this routine. This should be the last call in main, except the
  * final return. On most systems epicsThreadExitMain never returns.This
  * must only be called by the main thread.
+ *
+ * @deprecated Deprecated for lack of use.  Please report any usage.
+ * Recommended replacement is loop + epicsThreadSleep(),
+ * epicsEventMustWait(), or similar.
  **/
-LIBCOM_API void epicsStdCall epicsThreadExitMain(void);
+LIBCOM_API void epicsStdCall epicsThreadExitMain(void) EPICS_DEPRECATED;
 
 /** For use with epicsThreadCreateOpt() */
 typedef struct epicsThreadOpts {

modules/libcom/src/osi/os/RTEMS-kernel/osdThread.c

@@ -219,6 +219,8 @@ threadWrapper (rtems_task_argument arg)
  */
 void epicsThreadExitMain (void)
 {
+    cantProceed("epicsThreadExitMain() has been deprecated for lack of usage."
+                "  Please report if you see this message.");
 }
 
 static rtems_status_code

modules/libcom/src/osi/os/WIN32/osdEnv.c

@@ -15,11 +15,11 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <stdio.h>
 #include <ctype.h>
 #include <errno.h>
 
 #include "epicsStdio.h"
+#include "epicsString.h"
 #include "errlog.h"
 #include "envDefs.h"
 #include "osiUnistd.h"
@@ -61,18 +61,10 @@ LIBCOM_API void epicsStdCall epicsEnvUnset (const char *name)
  */
 LIBCOM_API void epicsStdCall epicsEnvShow (const char *name)
 {
-    if (name == NULL) {
-        extern char **environ;
     char **sp;
 
-        for (sp = environ ; (sp != NULL) && (*sp != NULL) ; sp++)
+    for (sp = environ ; (sp != NULL) && (*sp != NULL) ; sp++) {
+        if (!name || epicsStrnGlobMatch(*sp, strchr(*sp, '=') - *sp, name))
             printf ("%s\n", *sp);
     }
-    else {
-        const char *cp = getenv (name);
-        if (cp == NULL)
-            printf ("%s is not an environment variable.\n", name);
-        else
-            printf ("%s=%s\n", name, cp);
-    }
 }

modules/libcom/src/osi/os/WIN32/osdEvent.c

@@ -92,17 +92,27 @@ LIBCOM_API epicsEventStatus epicsEventWait ( epicsEventId pSem )
 LIBCOM_API epicsEventStatus epicsEventWaitWithTimeout (
     epicsEventId pSem, double timeOut )
 {
-    static const unsigned nSec100PerSec = 10000000u;
+    /* waitable timers use 100 nanosecond intervals, like FILETIME */
+    static const unsigned ivalPerSec = 10000000u; /* number of 100ns intervals per second */
+    static const unsigned mSecPerSec = 1000u;     /* milliseconds per second */
     HANDLE handles[2];
     DWORD status;
     LARGE_INTEGER tmo;
     HANDLE timer;
+    LONGLONG nIvals;  /* number of intervals */
 
     if ( timeOut <= 0.0 ) {
         tmo.QuadPart = 0u;
     }
+    else if ( timeOut >= INFINITE / mSecPerSec  ) {
+        /* we need to apply a maximum wait time to stop an overflow. We choose (INFINITE - 1) milliseconds,
+           to be compatible with previous WaitForSingleObject() implementation */    
+        nIvals = (LONGLONG)(INFINITE - 1) * (ivalPerSec / mSecPerSec);
+        tmo.QuadPart = -nIvals;  /* negative value means a relative time offset for timer */
+    }
     else {
-        tmo.QuadPart = -((LONGLONG)(timeOut * nSec100PerSec + 0.5));
+        nIvals = (LONGLONG)(timeOut * ivalPerSec + 0.999999);
+        tmo.QuadPart = -nIvals;
     }
 
     if (tmo.QuadPart < 0) {

modules/libcom/src/osi/os/WIN32/osdProcess.c

@@ -50,10 +50,14 @@ LIBCOM_API osiGetUserNameReturn epicsStdCall osiGetUserName (char *pBuf, unsigne
 LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess 
     ( const char *pProcessName, const char *pBaseExecutableName )
 {
+    BOOL silent = pProcessName && pProcessName[0]=='!';
     BOOL status;
     STARTUPINFO startupInfo;
     PROCESS_INFORMATION processInfo;
 
+    if(silent)
+        pProcessName++; /* skip '!' */
+
     GetStartupInfo ( &startupInfo );
     startupInfo.lpReserved = NULL;
     startupInfo.lpTitle = (char *) pProcessName;
@@ -115,7 +119,7 @@ LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess
             /* Free the buffer. */
             LocalFree (errStrMsgBuf);
         }
-        else {
+        else if(!silent) {
             fprintf (stderr, "!!WARNING!!\n");
             fprintf (stderr, "Unable to locate executable \"%s\".\n", pBaseExecutableName);
             fprintf (stderr, "You may need to modify your \"path\" environment variable.\n");

modules/libcom/src/osi/os/WIN32/osdThread.c

@@ -260,7 +260,8 @@ static void epicsParmCleanupWIN32 ( win32ThreadParam * pParm )
  */
 LIBCOM_API void epicsStdCall epicsThreadExitMain ( void )
 {
-    _endthread ();
+    cantProceed("epicsThreadExitMain() has been deprecated for lack of usage."
+                "  Please report if you see this message.");
 }
 
 /*
@@ -818,15 +819,25 @@ HANDLE osdThreadGetTimer()
  */
 LIBCOM_API void epicsStdCall epicsThreadSleep ( double seconds )
 {
-    static const unsigned nSec100PerSec = 10000000u;
+    /* waitable timers use 100 nanosecond intervals, like FILETIME */
+    static const unsigned ivalPerSec = 10000000u; /* number of 100ns intervals per second */
+    static const unsigned mSecPerSec = 1000u;     /* milliseconds per second */
     LARGE_INTEGER tmo;
     HANDLE timer;
+    LONGLONG nIvals; /* number of intervals */
 
     if ( seconds <= 0.0 ) {
         tmo.QuadPart = 0u;
     }
+    else if ( seconds >= INFINITE / mSecPerSec  ) { 
+        /* we need to apply a maximum wait time to stop an overflow. We choose (INFINITE - 1) milliseconds,
+           to be compatible with previous WaitForSingleObject() implementation */    
+        nIvals = (LONGLONG)(INFINITE - 1) * (ivalPerSec / mSecPerSec);
+        tmo.QuadPart = -nIvals; /* negative value means a relative time offset for timer */
+    }
     else {
-        tmo.QuadPart = -((LONGLONG)(seconds * nSec100PerSec + 0.5));
+        nIvals = (LONGLONG)(seconds * ivalPerSec + 0.999999);
+        tmo.QuadPart = -nIvals;
     }
 
     if (tmo.QuadPart == 0) {

modules/libcom/src/osi/os/default/osdEnv.c

@@ -15,11 +15,11 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <stdio.h>
 #include <ctype.h>
 #include <errno.h>
 
 #include "epicsStdio.h"
+#include "epicsString.h"
 #include "epicsVersion.h"
 #include "errlog.h"
 #include "envDefs.h"
@@ -68,18 +68,11 @@ LIBCOM_API void epicsStdCall epicsEnvUnset (const char *name)
  */
 LIBCOM_API void epicsStdCall epicsEnvShow (const char *name)
 {
-    if (name == NULL) {
     extern char **environ;
     char **sp;
 
-        for (sp = environ ; (sp != NULL) && (*sp != NULL) ; sp++)
+    for (sp = environ ; (sp != NULL) && (*sp != NULL) ; sp++) {
+        if (!name || epicsStrnGlobMatch(*sp, strchr(*sp, '=') - *sp, name))
             printf ("%s\n", *sp);
     }
-    else {
-        const char *cp = getenv (name);
-        if (cp == NULL)
-            printf ("%s is not an environment variable.\n", name);
-        else
-            printf ("%s=%s\n", name, cp);
-    }
 }

modules/libcom/src/osi/os/posix/osdProcess.c

@@ -24,7 +24,9 @@
 #include <unistd.h>
 #include <sched.h>
 #include <sys/types.h>
+#include <sys/wait.h>
 #include <pwd.h>
+#include <fcntl.h>
 
 #include "osiProcess.h"
 #include "errlog.h"
@@ -61,12 +63,22 @@ LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess
     (const char *pProcessName, const char *pBaseExecutableName)
 {
     int status;
+    int silent = pProcessName && pProcessName[0]=='!';
+    int fds[2]; /* [reader, writer] */
+
+    if(silent)
+        pProcessName++; /* skip '!' */
+
+    if(pipe(fds))
+        return osiSpawnDetachedProcessFail;
 
     /*
      * create a duplicate process
      */
     status = fork ();
     if (status < 0) {
+        close(fds[0]);
+        close(fds[1]);
         return osiSpawnDetachedProcessFail;
     }
 
@@ -75,11 +87,29 @@ LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess
      * in the initiating (parent) process
      */
     if (status) {
-        return osiSpawnDetachedProcessSuccess;
+        osiSpawnDetachedProcessReturn ret = osiSpawnDetachedProcessSuccess;
+        char buf;
+        ssize_t n;
+        close(fds[1]);
+
+        n = read(fds[0], &buf, 1);
+        /* Success if child exec'd without sending a '!'.
+         * Of course child may crash soon after, but can't
+         * wait around for this to happen.
+         */
+        if(n!=0) {
+            ret = osiSpawnDetachedProcessFail;
         }
 
-    /*
-     * This is executed only by the new child process.
+        close(fds[0]);
+        return ret;
+    }
+    close(fds[0]);
+    (void)fcntl ( fds[1], F_SETFD, FD_CLOEXEC );
+
+    /* This is executed only by the new child process.
+     * Since we may be called from a library, we don't assume that
+     * all other code has set properly set FD_CLOEXEC.
      * Close all open files except for STDIO, so they will not
      * be inherited by the new program.
      */
@@ -89,6 +119,8 @@ LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess
             if (fd==STDIN_FILENO) continue;
             if (fd==STDOUT_FILENO) continue;
             if (fd==STDERR_FILENO) continue;
+            /* pipe to our parent will be closed automatically via FD_CLOEXEC */
+            if (fd==fds[1]) continue;
             close (fd);
         }
     }
@@ -109,12 +141,16 @@ LIBCOM_API osiSpawnDetachedProcessReturn epicsStdCall osiSpawnDetachedProcess
      * Run the specified executable
      */
     status = execlp (pBaseExecutableName, pBaseExecutableName, (char *)NULL);
-    if ( status < 0 ) {
+    if ( status < 0 && !silent ) {
         fprintf ( stderr, "**** The executable \"%s\" couldn't be located\n", pBaseExecutableName );
         fprintf ( stderr, "**** because of errno = \"%s\".\n", strerror (errno) );
         fprintf ( stderr, "**** You may need to modify your PATH environment variable.\n" );
         fprintf ( stderr, "**** Unable to start \"%s\" process.\n", pProcessName);
     }
+    /* signal error to parent */
+    ssize_t ret = write(fds[1], "!", 1);
+    (void)ret; /* not much we could do about this */
+    close(fds[1]);
     /* Don't run our parent's atexit() handlers */
     _exit ( -1 );
 }

modules/libcom/src/osi/os/posix/osdThread.c

@@ -690,6 +690,10 @@ LIBCOM_API void epicsStdCall epicsThreadExitMain(void)
     epicsThreadOSD *pthreadInfo;
 
     epicsThreadInit();
+
+    cantProceed("epicsThreadExitMain() has been deprecated for lack of usage."
+                "  Please report if you see this message.");
+
     pthreadInfo = (epicsThreadOSD *)pthread_getspecific(getpthreadInfo);
     if(pthreadInfo==NULL)
         pthreadInfo = createImplicit();

modules/libcom/src/osi/os/vxWorks/osdEnv.c

@@ -16,17 +16,18 @@
 /* This is needed for vxWorks 6.8 to prevent an obnoxious compiler warning */
 #define _VSB_CONFIG_FILE <../lib/h/config/vsbConfig.h>
 
-#include <string.h>
 #include <stdlib.h>
-#include <stdio.h>
+#include <string.h>
 #include <ctype.h>
 #include <envLib.h>
 
 #include "epicsFindSymbol.h"
 #include "epicsStdio.h"
+#include "epicsString.h"
 #include "errlog.h"
 #include "iocsh.h"
 
+
 /*
  * Set the value of an environment variable
  * Leaks memory, but the assumption is that this routine won't be
@@ -86,14 +87,12 @@ LIBCOM_API void epicsStdCall epicsEnvUnset (const char *name)
  */
 LIBCOM_API void epicsStdCall epicsEnvShow (const char *name)
 {
-    if (name == NULL) {
-        envShow (0);
-    }
-    else {
-        const char *cp = getenv (name);
-        if (cp == NULL)
-            printf ("%s is not an environment variable.\n", name);
-        else
-            printf ("%s=%s\n", name, cp);
+    extern char **ppGlobalEnviron; /* Used in 'environ' macro but not declared in envLib.h */
+    char **sp;
+
+    for (sp = environ ; (sp != NULL) && (*sp != NULL) ; sp++) {
+        if (!**sp) continue; /* skip unset environment variables */
+        if (!name || epicsStrnGlobMatch(*sp, strchr(*sp, '=') - *sp, name))
+            printf ("%s\n", *sp);
     }
 }

modules/libcom/src/osi/os/vxWorks/osdThread.c

@@ -353,7 +353,8 @@ void epicsThreadResume(epicsThreadId id)
 
 void epicsThreadExitMain(void)
 {
-    errlogPrintf("epicsThreadExitMain was called for vxWorks. Why?\n");
+    cantProceed("epicsThreadExitMain() has been deprecated for lack of usage."
+                "  Please report if you see this message.");
 }
 
 unsigned int epicsThreadGetPriority(epicsThreadId id)

modules/libcom/test/epicsStringTest.c

@@ -73,6 +73,43 @@ void testGlob(void) {
     testOk1(epicsStrGlobMatch("hello","he*"));
     testOk1(epicsStrGlobMatch("hello","*lo"));
     testOk1(epicsStrGlobMatch("hello","*"));
+
+/* epicsStrnGlobMatch */
+
+    testOk1(epicsStrnGlobMatch("xyzq",3,"xyz"));
+    testOk1(!epicsStrnGlobMatch("xyzq",3,"xyzm"));
+    testOk1(!epicsStrnGlobMatch("xyzm",3,"xyzm"));
+    testOk1(!epicsStrnGlobMatch("xyzm",0,"xyzm"));
+    testOk1(!epicsStrnGlobMatch("xyzq",3,""));
+    testOk1(epicsStrnGlobMatch("xyz",0,""));
+
+    testOk1(epicsStrnGlobMatch("xyz",0,"*"));
+    testOk1(!epicsStrnGlobMatch("xyz",0,"?"));
+    testOk1(!epicsStrnGlobMatch("xyz",0,"?*"));
+
+    testOk1(epicsStrnGlobMatch("hello!",5,"h*o"));
+    testOk1(!epicsStrnGlobMatch("hello!",5,"h*x"));
+    testOk1(!epicsStrnGlobMatch("hellxo",5,"h*o"));
+
+    testOk1(epicsStrnGlobMatch("hello!",5,"he?lo"));
+    testOk1(!epicsStrnGlobMatch("hello!",5,"he?xo"));
+    testOk1(epicsStrnGlobMatch("hello!",5,"he??o"));
+    testOk1(!epicsStrnGlobMatch("helllo!",5,"he?lo"));
+
+    testOk1(!epicsStrnGlobMatch("hello world!",10,"he*o w*d"));
+    testOk1(epicsStrnGlobMatch("hello world!",11,"he*o w*d"));
+    testOk1(!epicsStrnGlobMatch("hello world!",12,"he*o w*d"));
+    testOk1(!epicsStrnGlobMatch("hello_world!",11,"he*o w*d"));
+    testOk1(epicsStrnGlobMatch("hello world!",11,"he**d"));
+
+    testOk1(epicsStrnGlobMatch("hello hello world!!!!!!!!!!!!!!!!!!!!",17,"he*o w*d"));
+
+    testOk1(!epicsStrnGlobMatch("hello hello world",15,"he*o w*d"));
+
+    testOk1(epicsStrnGlobMatch("hello!!",5,"he*"));
+    testOk1(epicsStrnGlobMatch("hello!!",5,"*lo"));
+    testOk1(epicsStrnGlobMatch("hello!!",5,"*"));
+
 }
 
 static
@@ -118,7 +155,7 @@ MAIN(epicsStringTest)
     char *s;
     int status;
 
-    testPlan(401);
+    testPlan(427);
 
     testChars();
 

src/template/base/top/configure/CONFIG

@@ -8,9 +8,19 @@ RULES = $(EPICS_BASE)
 # RELEASE files point to other application tops
 include $(TOP)/configure/RELEASE
 -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).Common
+
 ifdef T_A
--include $(TOP)/configure/RELEASE.Common.$(T_A)
--include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).$(T_A)
+  -include $(TOP)/configure/RELEASE.Common.$(T_A)
+  -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).$(T_A)
+endif
+
+# Check EPICS_BASE is set properly
+ifneq (file,$(origin EPICS_BASE))
+  $(error EPICS_BASE must be set in a configure/RELEASE file)
+else
+  ifeq ($(wildcard $(EPICS_BASE)/configure/CONFIG_BASE),)
+    $(error EPICS_BASE does not point to an EPICS installation)
+  endif
 endif
 
 CONFIG = $(RULES)/configure
@@ -19,11 +29,17 @@ include $(CONFIG)/CONFIG
 # Override the Base definition:
 INSTALL_LOCATION = $(TOP)
 
-# CONFIG_SITE files contain other build configuration settings
+# CONFIG_SITE files contain local build configuration settings
 include $(TOP)/configure/CONFIG_SITE
+
+# Host-arch specific settings
 -include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).Common
+
 ifdef T_A
+  # Target-arch specific settings
  -include $(TOP)/configure/CONFIG_SITE.Common.$(T_A)
+
+  #  Host & target specific settings
  -include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
 endif
 

src/template/ext/top/configure/CONFIG

@@ -1,13 +1,11 @@
 # CONFIG - Load build configuration data
 #
-# Do not make changes in this file, any site-specific
-# overrides should be given in a CONFIG_SITE file.
+# Do not make changes to this file!
 
-# Where the build rules come from
+# Allow user to override where the build rules come from
 RULES = $(EPICS_BASE)
 
-INSTALL_IDLFILE = $(INSTALL)
-
+# RELEASE files point to other application tops
 include $(TOP)/configure/RELEASE
 -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH)
 -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).Common
@@ -17,27 +15,38 @@ ifdef T_A
   -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).$(T_A)
 endif
 
+# Check EPICS_BASE is set properly
+ifneq (file,$(origin EPICS_BASE))
+  $(error EPICS_BASE must be set in a configure/RELEASE file)
+else
+  ifeq ($(wildcard $(EPICS_BASE)/configure/CONFIG_BASE),)
+    $(error EPICS_BASE does not point to an EPICS installation)
+  endif
+endif
+
 CONFIG = $(RULES)/configure
 include $(CONFIG)/CONFIG
 
-# Override some Base definitions
+# Override the Base definition:
 INSTALL_LOCATION = $(TOP)
 
-# CONFIG_SITE files contain build configuration overrides
+# CONFIG_SITE files contain local build configuration settings
 include $(TOP)/configure/CONFIG_SITE
 
-# Host-arch specific settings
+# Host-arch specific settings for extensions are in configure/os
 -include $(TOP)/configure/os/CONFIG_SITE.$(EPICS_HOST_ARCH).Common
 
+ifdef T_A
+  # Target-arch specific settings for extensions are in configure/os
+  -include $(TOP)/configure/os/CONFIG_SITE.Common.$(T_A)
+
+  #  Host & target specific settings for extensions are in configure/os
+  -include $(TOP)/configure/os/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
+endif
+
+# Additional settings for extensions
+INSTALL_IDLFILE = $(INSTALL)
+
 ifdef INSTALL_LOCATION_EXTENSIONS
   INSTALL_LOCATION = $(INSTALL_LOCATION_EXTENSIONS)
 endif
-
-ifdef T_A
-  # Target-arch specific settings
-  -include $(TOP)/configure/os/CONFIG_SITE.Common.$(T_A)
-
-  #  Host & target specific combination settings
-  -include $(TOP)/configure/os/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
-endif
-

src/tools/convertRelease.pl

@@ -227,6 +227,12 @@ sub envPaths {
 # Check RELEASE file consistency with support modules
 #
 sub checkRelease {
+    die "\nEPICS_BASE must be set in a configure/RELEASE file.\n\n"
+        unless grep(m/^(EPICS_BASE)$/, @apps) &&
+            exists $macros{EPICS_BASE} &&
+            $macros{EPICS_BASE} ne '' &&
+            -f "$macros{EPICS_BASE}/configure/CONFIG_BASE";
+
     my $status = 0;
     delete $macros{RULES};
     delete $macros{TOP};