Change the testfixture binary so that it explicitly enabled core files

on a crash (on unix).  Add a test case to verify that this works.

FossilOrigin-Name: 90f422ed81311d7ab2a90a381d36cba9c20227fc

manifest

@@ -1,5 +1,5 @@
-C Add\sSQLITE_ENABLE_STMT_SCANSTATUS\sto\sthe\sUpdate-Delete-Limit\sconfiguration\nin\sthe\sreleasetest.tcl\sscript.
+C Change\sthe\stestfixture\sbinary\sso\sthat\sit\sexplicitly\senabled\score\sfiles\s\non\sa\scrash\s(on\sunix).\s\sAdd\sa\stest\scase\sto\sverify\sthat\sthis\sworks.
-D 2015-01-09T20:00:21.586
+D 2015-01-09T21:54:58.894
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in b40b4c2a3a187c41ee657d3f0e0e0dfe8fd860b5
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -237,8 +237,8 @@ F src/sqliteInt.h 5d5716d8b33a61606c6ee10112f4b6df56f42725
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
 F src/status.c 81712116e826b0089bb221b018929536b2b5406f
 F src/table.c e7a09215315a978057fb42c640f890160dbcc45e
-F src/tclsqlite.c c6a21c64da1490e14d53cdc2062d1e2e57942622
+F src/tclsqlite.c b1d0a181a9f8e8dae960370518a3450db93a6a8c
-F src/test1.c 460d39e7abbcd0c61c9788c06e0d925f4d1e6a22
+F src/test1.c 163cff8c4ebdda512e3b055716e3cc7f0e563a44
 F src/test2.c 98049e51a17dc62606a99a9eb95ee477f9996712
 F src/test3.c 1c0e5d6f080b8e33c1ce8b3078e7013fdbcd560c
 F src/test4.c 9b32d22f5f150abe23c1830e2057c4037c45b3df
@@ -801,7 +801,7 @@ F test/randexpr1.test eda062a97e60f9c38ae8d806b03b0ddf23d796df
 F test/rdonly.test dd30a4858d8e0fbad2304c2bd74a33d4df36412a
 F test/regexp1.test 497ea812f264d12b6198d6e50a76be4a1973a9d8
 F test/reindex.test 44edd3966b474468b823d481eafef0c305022254
-F test/releasetest.tcl 58ede36fff67c0799e44995f2b025f8854773c0a
+F test/releasetest.tcl c7a6647a96745dff41c08a80064e16da48177c43
 F test/resolver01.test 33abf37ff8335e6bf98f2b45a0af3e06996ccd9a
 F test/rollback.test 458fe73eb3ffdfdf9f6ba3e9b7350a6220414dea
 F test/rollback2.test fc14cf6d1a2b250d2735ef16124b971bce152f14
@@ -1235,7 +1235,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 88a7a967116a48aeb5fa7014613c0134b1b47bb3
+P c70d5edaf6327cb18df5285c3fc21b610f3d3294
-R 366d7baead37fb35af2c9724ea29fa87
+R 521b82eb1167efbcde785d8c3ea7771d
 U drh
-Z 19a0bf2d773a4306e8c2ab9a5efe117f
+Z a63c757fcfd64e46bc375106b9e33672

manifest.uuid

@@ -1 +1 @@
-c70d5edaf6327cb18df5285c3fc21b610f3d3294
+90f422ed81311d7ab2a90a381d36cba9c20227fc

src/tclsqlite.c

@@ -3813,6 +3813,11 @@ static void init_all(Tcl_Interp *interp){
 #endif
 }
 
+/* Needed for the setrlimit() system call on unix */
+#if defined(unix)
+#include <sys/resource.h>
+#endif
+
 #define TCLSH_MAIN main   /* Needed to fake out mktclapp */
 int TCLSH_MAIN(int argc, char **argv){
   Tcl_Interp *interp;
@@ -3826,6 +3831,17 @@ int TCLSH_MAIN(int argc, char **argv){
   }
 #endif
 
+  /* Since the primary use case for this binary is testing of SQLite,
+  ** be sure to generate core files if we crash */
+#if defined(SQLITE_TEST) && defined(unix)
+  { struct rlimit x;
+    getrlimit(RLIMIT_CORE, &x);
+    x.rlim_cur = x.rlim_max;
+    setrlimit(RLIMIT_CORE, &x);
+  }
+#endif /* SQLITE_TEST && unix */
+
+
   /* Call sqlite3_shutdown() once before doing anything else. This is to
   ** test that sqlite3_shutdown() can be safely called by a process before
   ** sqlite3_initialize() is. */

src/test1.c

@@ -6618,6 +6618,7 @@ static int test_user_delete(
 **       1          Overflow a signed integer
 **       2          Jump based on an uninitialized variable
 **       3          Read after free
+**       4          Panic
 */
 static int test_bad_behavior(
   ClientData clientData, /* Pointer to an integer containing zero */
@@ -6656,6 +6657,10 @@ static int test_bad_behavior(
       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
       break;
     }
+    case 4: {
+      Tcl_Panic("Deliberate panic");
+      break;
+    }
   }
   return TCL_OK;
 }  

test/releasetest.tcl

@@ -169,6 +169,7 @@ array set ::Configs {
   Fail0 {-O0}
   Fail2 {-O0}
   Fail3 {-O0}
+  Fail4 {-O0}
 }
 
 array set ::Platforms {
@@ -210,6 +211,7 @@ array set ::Platforms {
     Sanitize  "TEST_FAILURE=1 test"
     Fail2     "TEST_FAILURE=2 valgrindtest"
     Fail3     "TEST_FAILURE=3 valgrindtest"
+    Fail4     "TEST_FAILURE=4 test"
   }
 }
 
@@ -278,6 +280,9 @@ proc count_tests_and_errors {logfile rcVar errmsgVar} {
   if {!$seen} {
     set rc 1
     set errmsg "Test did not complete"
+    if {[file readable core]} {
+      append errmsg " - core file exists"
+    }
   }
 }
 
@@ -331,6 +336,7 @@ proc run_test_suite {name testtarget config} {
   trace_cmd file mkdir $dir
   trace_cmd cd $dir
   set errmsg {}
+  catch {file delete core}
   set rc [catch [configureCommand $configOpts]]
   if {!$rc} {
     set rc [catch [makeCommand $testtarget $cflags $opts]]