Fix (and silence) a bunch of build-time diagnostics ("warnings")

src/Makefile

@@ -25,20 +25,6 @@ install: install-software install-docs
 
 install-software: install-kernel-dep install-kernel-indep install-menu
 
-
-# buster gcc (Debian 8.3.0-6) emits many warnings
-# use at your own risk
-ifeq ($(origin SUPPRESS_WARNINGS), undefined)
-else
-  QUIETFLAGS    ?=
-  QUIETFLAGS    += -Wno-unused-label
-  QUIETFLAGS    += -Wno-format-overflow
-  QUIETFLAGS    += -Wno-format-truncation
-  QUIETFLAGS    += -Wno-stringop-truncation
-  CXXQUIETFLAGS := $(QUIETFLAGS)
-  CXXQUIETFLAGS += -Wno-catch-value
-endif
-
 ifeq ($(origin KERNELRELEASE), undefined)
 MAKEFLAGS += --warn-undefined-variables
 endif
@@ -258,11 +244,17 @@ INCLUDE += $(LIBTIRPC_CFLAGS)
 # Compilation options.	Perhaps some of these should come from Makefile.inc? (CXXFLAGS now does)
 INTEGER_OVERFLOW_FLAGS := -fwrapv
 OPT := -Os $(INTEGER_OVERFLOW_FLAGS)
-DEBUG := $(DEBUG) -g -Wall
+DEBUG := $(DEBUG) -g -Wall -Wno-stringop-truncation
 CFLAGS := $(INCLUDE) $(OPT) $(DEBUG) $(EXTRA_DEBUG) -DULAPI -std=gnu99 -fgnu89-inline -Werror=implicit-function-declaration $(CFLAGS) $(CPPFLAGS)
 CXXFLAGS := $(INCLUDE) $(EXTRA_DEBUG) -DULAPI $(DEBUG) $(OPT) -Woverloaded-virtual $(CXXFLAGS) $(CPPFLAGS)
 CXXFLAGS += $(call cxx-option, -Wno-psabi)
 CXXFLAGS += $(call cxx-option, -std=gnu++11, -std=gnu++0x)
+# In Debian 11, any inclusion of <boost/python.hpp> leads to several
+# diagnostics from included headers about deprecated features. LinuxCNC does
+# not directly use these deprecated features, but it does use boost::python.
+# Silence the warnings just when they occur in files using boost/python.hpp by
+# adding SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS to the object's EXTRAFLAGS
+SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS = -DBOOST_ALLOW_DEPRECATED_HEADERS=1 -DBOOST_BIND_GLOBAL_PLACEHOLDERS=1
 
 CFLAGS   += $(TOOL_NML_FLAG)
 CXXFLAGS += $(TOOL_NML_FLAG)
@@ -644,7 +636,7 @@ install install-software install-docs:
 
 MENUS = ../share/menus/CNC.menu \
     ../share/desktop-directories/cnc.directory
-install-menus install-menu: $(MENUS) $(XDGDESKTOP)
+rip-install-menus rip-install-menu: $(MENUS) $(XDGDESKTOP)
 	mkdir -p $(HOME)/.config/menus/applications-merged
 	cp $< $(HOME)/.config/menus/applications-merged
 else

src/emc/kinematics/Submakefile

@@ -7,7 +7,7 @@ USERSRCS += $(GENSERKINSSRCS)
 
 DELTAMODULESRCS := emc/kinematics/lineardeltakins.cc
 PYSRCS += $(DELTAMODULESRCS)
-$(call TOOBJS, $(DELTAMODULESRCS)): CFLAGS += -x c++ -Wno-declaration-after-statement
+$(call TOOBJS, $(DELTAMODULESRCS)): EXTRAFLAGS += $(SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS)
 
 DELTAMODULE := ../lib/python/lineardeltakins.so
 $(DELTAMODULE): $(call TOOBJS, $(DELTAMODULESRCS))
@@ -27,7 +27,7 @@ TARGETS += ../bin/genserkins
 
 RDELTAMODULESRCS := emc/kinematics/rotarydeltakins.cc
 PYSRCS += $(RDELTAMODULESRCS)
-$(call TOOBJS, $(RDELTAMODULESRCS)): CFLAGS += -x c++ -Wno-declaration-after-statement
+$(call TOOBJS, $(RDELTAMODULESRCS)): EXTRAFLAGS += $(SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS)
 
 RDELTAMODULE := ../lib/python/rotarydeltakins.so
 $(RDELTAMODULE): $(call TOOBJS, $(RDELTAMODULESRCS))

src/emc/rs274ngc/Submakefile

@@ -36,7 +36,8 @@ LIBRS274SRCS := $(addprefix emc/rs274ngc/, \
 	interp_inspection.cc)
 USERSRCS += $(LIBRS274SRCS)
 
-$(call TOOBJSDEPS, $(LIBRS274SRCS)) : EXTRAFLAGS=-fPIC $(BOOST_DEBUG_FLAGS)
+$(call TOOBJSDEPS, $(LIBRS274SRCS)) : EXTRAFLAGS+=-fPIC $(BOOST_DEBUG_FLAGS)
+$(call TOOBJSDEPS, emc/rs274ngc/pyinterp1.cc emc/rs274ngc/pyparamclass.cc emc/rs274ngc/pyinterp1.cc emc/rs274ngc/pyblock.cc emc/rs274ngc/pyarrays.cc emc/rs274ngc/interpmodule.cc): EXTRAFLAGS += $(SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS)
 
 TARGETS += ../lib/librs274.so ../lib/librs274.so.0
 

src/emc/rs274ngc/array1.hh

@@ -9,7 +9,8 @@
 #ifndef BOOST_PYTHON_MAX_ARITY
 #define BOOST_PYTHON_MAX_ARITY 4
 #endif
-#include <boost/python/iterator.hpp>
+#include <boost/python/class.hpp>
+#include <boost/python/object/class_detail.hpp>
 #include <boost/python/enum.hpp>
 #include <boost/python/object.hpp>
 #include <boost/python/scope.hpp>

src/emc/task/Submakefile

@@ -23,6 +23,8 @@ MILLTASKSRCS := \
 	emc/task/taskclass.cc \
 	emc/task/backtrace.cc \
 
+$(call TOOBJSDEPS, emc/task/taskmodule.cc): EXTRAFLAGS += $(SILENCE_BOOST_INTERNAL_DIAGNOSTICS_FLAGS)
+
 USERSRCS += $(MILLTASKSRCS)
 
 #LDFLAGS +=

src/emc/task/emctask.cc

@@ -184,7 +184,7 @@ int emcTaskInit()
 		    // set the user_defined_fmt string with dirname
 		    // note the %%02d means 2 digits after the M code
 		    // and we need two % to get the literal %
-		    ret = snprintf(user_defined_fmt[dct], sizeof(user_defined_fmt[0]),
+		    ret = snprintf(user_defined_fmt[dct], sizeof(user_defined_fmt[dct]),
 			     "%s/M1%%02d", expanddir); // update global
 		    if(ret >= sizeof(user_defined_fmt[0])){
 			return -EMSGSIZE; // name truncated
@@ -217,13 +217,13 @@ int emcTaskHalt()
 
 int emcTaskStateRestore()
 {
-    int res;
+    int res = 0;
     // Do NOT restore on MDI command
     if (emcStatus->task.mode == EMC_TASK_MODE_AUTO) {
         // Validity of state tag checked within restore function
         res = pinterp->restore_from_tag(emcStatus->motion.traj.tag);
     }
-    return 0;
+    return res;
 }
 
 int emcTaskAbort()

src/emc/usr_intf/emclcd.cc

@@ -1705,9 +1705,9 @@ int main(int argc, char *argv[])
     while((opt = getopt_long(argc, argv, "p:d:a", longopts, NULL)) != -1) {
       switch(opt) {
         case 'a': autoStart = 1; break;
-        case 'd': strncpy(driver, optarg, strlen(optarg) + 1); break;
+        case 'd': snprintf(driver, sizeof(driver), "%s", optarg); break;
         case 'p': sscanf(optarg, "%d", &port); break;
-        case 's': strncpy(server, optarg, strlen(optarg) + 1); break;
+        case 's': snprintf(server, sizeof(server), "%s", optarg); break;
         case 'w': sscanf(optarg, "%f", &delay); break;
         }
       }

src/emc/usr_intf/emcrsh.cc

@@ -2939,12 +2939,12 @@ int main(int argc, char *argv[])
     while((opt = getopt_long(argc, argv, "he:n:p:s:w:d:", longopts, NULL)) != - 1) {
       switch(opt) {
         case 'h': usage(argv[0]); exit(1);
-        case 'e': strncpy(enablePWD, optarg, strlen(optarg) + 1); break;
-        case 'n': strncpy(serverName, optarg, strlen(optarg) + 1); break;
+        case 'e': snprintf(enablePWD, sizeof(enablePWD), "%s", optarg); break;
+        case 'n': snprintf(serverName, sizeof(serverName), "%s", optarg); break;
         case 'p': sscanf(optarg, "%d", &port); break;
         case 's': sscanf(optarg, "%d", &maxSessions); break;
-        case 'w': strncpy(pwd, optarg, strlen(optarg) + 1); break;
-        case 'd': strncpy(defaultPath, optarg, strlen(optarg) + 1);
+        case 'w': snprintf(pwd, sizeof(pwd), "%s", optarg); break;
+        case 'd': snprintf(defaultPath, sizeof(defaultPath), "%s", optarg); break;
         }
       }
 

src/emc/usr_intf/schedrmt.cc

@@ -1254,12 +1254,12 @@ int main(int argc, char *argv[])
     // process local command line args
     while((opt = getopt_long(argc, argv, "e:n:p:s:w:", longopts, NULL)) != -1) {
       switch(opt) {
-        case 'e': strncpy(enablePWD, optarg, strlen(optarg) + 1); break;
-        case 'n': strncpy(serverName, optarg, strlen(optarg) + 1); break;
+        case 'e': snprintf(enablePWD, sizeof(enablePWD), "%s", optarg); break;
+        case 'n': snprintf(serverName, sizeof(serverName), "%s", optarg); break;
         case 'p': sscanf(optarg, "%d", &port); break;
         case 's': sscanf(optarg, "%d", &maxSessions); break;
-        case 'w': strncpy(pwd, optarg, strlen(optarg) + 1); break;
-        case 'd': strncpy(defaultPath, optarg, strlen(optarg) + 1);
+        case 'w': snprintf(pwd, sizeof(pwd), "%s", optarg); break;
+        case 'd': snprintf(defaultPath, sizeof(defaultPath), "%s", optarg); break;
         }
       }
 

src/hal/classicladder/Submakefile

@@ -32,7 +32,7 @@ CLASSICLADDERSRCS := $(addprefix hal/classicladder/, \
 	vars_access.c \
         )
 
-GTK2_CFLAGS += -DGTK_INTERFACE -DGTK2
+GTK2_CFLAGS += -DGTK_INTERFACE -DGTK2 -Wno-deprecated-declarations
 ifeq ($(HAVE_GNOMEPRINT),yes)
 CLASSICLADDERSRCS += hal/classicladder/print_gnome.c
 GTK2_CFLAGS += -DGNOME_PRINT_USE

src/hal/components/Submakefile

@@ -7,8 +7,8 @@ CONVERTERS :=  \
     conv_bit_s32.comp conv_bit_u32.comp conv_bit_float.comp \
     conv_s32_float.comp conv_s32_bit.comp conv_s32_u32.comp \
     conv_u32_float.comp conv_u32_bit.comp conv_u32_s32.comp
-COMPS := $(sort $(wildcard hal/components/*.comp) $(addprefix hal/components/, $(CONVERTERS)))
-COMP_MANPAGES := $(patsubst hal/components/%.comp, ../docs/man/man9/%.9, $(COMPS))
+COMPS := $(filter-out hal/components/tpcomp.comp, $(sort $(wildcard hal/components/*.comp) $(addprefix hal/components/, $(CONVERTERS))))
+COMP_MANPAGES := $(patsubst hal/components/%.comp, ../docs/man/man9/%.9, $(COMPS)) ../docs/man/man9/tpcomp.9
 ifeq ($(BUILD_SYS),uspace)
 COMP_DRIVERS += hal/drivers/serport.comp
 COMP_DRIVERS += hal/drivers/mesa_7i65.comp

src/hal/components/tpcomp.comp

@@ -67,6 +67,8 @@ option  extra_setup;
 #include USE_TOPDIR(src/libnml/posemath/_posemath.c)
 #include USE_TOPDIR(src/libnml/posemath/sincos.c)
 
+#else
+#error No TOPDIR defined, skeleton component provides no trajectory planning functions.
 #endif // }
 //=====================================================================
 
@@ -80,12 +82,7 @@ RTAPI_MP_STRING(tp_parms,"Example tp parms");
 EXTRA_SETUP() {
     if (!tp_parms) {tp_parms="no_tp_parms";}
     rtapi_print("@@@%s:%s: tp_parms=%s\n",__FILE__,__FUNCTION__,tp_parms);
-#ifndef TOPDIR
-#warning No TOPDIR defined, skeleton component provides no trajectory planning functions.
-    rtapi_print("\n!!!%s: NO Trajectory Planning symbols provided\n\n",__FILE__);
-#else
     rtapi_print("\n@@@%s: TOPDIR=%s\n",__FILE__,XSTR(TOPDIR));
-#endif
     return 0;
 }
 #undef USE_TOPDIR

src/hal/user_comps/mb2hal/mb2hal_init.c

@@ -163,7 +163,7 @@ retCode parse_pin_names(const char * names_string, mb_tx_t *this_mb_tx)
 retCode parse_transaction_section(const int mb_tx_num)
 {
     char *fnct_name = "parse_transaction_section";
-    char section[20];
+    char section[40];
     char *tag;
     const char *tmpstr;
     mb_tx_t *this_mb_tx;

src/hal/utils/halcmd_main.c

@@ -60,6 +60,21 @@
 #include <fnmatch.h>
 #include <search.h>
 
+static char *vseprintf(char *buf, char *ebuf, const char *fmt, va_list ap) {
+    int result = vsnprintf(buf, ebuf-buf, fmt, ap);
+    if(result < 0) return ebuf;
+    else if(buf + result > ebuf) return ebuf;
+    else return buf + result;
+}
+
+static char *seprintf(char *buf, char *ebuf, const char *fmt, ...) {
+    va_list ap;
+    va_start(ap, fmt);
+    char *result = vseprintf(buf, ebuf, fmt, ap);
+    va_end(ap);
+    return result;
+}
+
 static int get_input(FILE *srcfile, char *buf, size_t bufsize);
 static void print_help_general(int showR);
 static int release_HAL_mutex(void);
@@ -255,49 +270,36 @@ int main(int argc, char **argv)
         }
     } else {
         int   extend_ct = 0; // extend lines with backslash (\)
-        char *elinenext = 0;
+        char  eline [(LINELEN + 2) * (MAX_EXTEND_LINES + 1)] = {0,};
+        char *elineptr=eline, *elineend=eline + sizeof(eline);
 	/* read command line(s) from 'srcfile' */
 	while (get_input(srcfile, raw_buf, MAX_CMD_LEN)) {
 	    char *tokens[MAX_TOK+1];
-            char  eline [(LINELEN + 2) * (MAX_EXTEND_LINES + 1)];
-            char *elineptr;
             int   newLinePos;
 
 	    halcmd_set_linenumber(linenumber++);
 
             newLinePos = (int)strlen(raw_buf) - 1; // interactive
-            if (raw_buf[newLinePos] == '\n') { newLinePos--; }  // tty
+            if (raw_buf[newLinePos] == '\n') { raw_buf[newLinePos]=0; newLinePos--; }  // tty
 
-            if (newLinePos > 0 && raw_buf[newLinePos] == '\\') { // backslash
+            if (raw_buf[newLinePos] == '\\') { // backslash
                 raw_buf[newLinePos] = 0;
                 newLinePos++;
                 if (!extend_ct) { //first extend
                     if (prompt == prompt_interactive) prompt = prompt_continue;
-                    elineptr = eline;
-                    strncpy(elineptr,raw_buf,strlen(raw_buf));
-                    elinenext = elineptr + strlen(raw_buf);
-                } else { // subsequent extends
-                    strncpy(elinenext,raw_buf,newLinePos);
-                    elinenext = elinenext + strlen(raw_buf);
                 }
-                *elinenext = 0;
+                elineptr = seprintf(elineptr, elineend, "%s", raw_buf);
                 extend_ct++;
                 continue; // get next line to extend
             } else { // no backslash
-                if (extend_ct) { // extend finished
-                    strncpy(elinenext,raw_buf,strlen(raw_buf));
-                    *(eline+strlen(eline)+0)='\n';
-                    elinenext = elinenext + strlen(raw_buf);
-                    *elinenext = 0;
-                    elineptr = eline;
-                }
+                elineptr = seprintf(elineptr, elineend, "%s", raw_buf);
             }
-            if (!extend_ct) { elineptr = (char*)raw_buf; }
             extend_ct = 0;
             if (prompt == prompt_continue) { prompt = prompt_interactive; }
 
 	    /* remove comments, do var substitution, and tokenise */
-	    retval = halcmd_preprocess_line(elineptr, tokens);
+	    retval = halcmd_preprocess_line(eline, tokens);
+
 	    if(echo_mode) {
 	        halcmd_echo("%s\n", eline);
 	    }
@@ -324,6 +326,8 @@ int main(int argc, char **argv)
 		/* exit from loop */
 		break;
 	    }
+            elineptr=eline;
+            *eline = 0;
 	} //while get_input()
         extend_ct=0;
     }

src/hal/utils/halrmt.c

@@ -1479,7 +1479,7 @@ static int doLoadUsr(char *args[])
     /* get program and component name */
     if(name_flag) {
         new_comp_name = *args++;
-    prog_name = *args++;
+        prog_name = *args++;
     } else {
         new_comp_name = prog_name = *args++;
     }
@@ -2880,7 +2880,7 @@ static cmdResponseType setUnload(char *s, connectionRecType *context)
 
 static cmdResponseType setLoadUsr(char *s, connectionRecType *context)
 {
-  char *argv[MAX_TOK+1];
+  char *argv[MAX_TOK+1] = {0};
 
   argv[0] = s;
   argv[1] = "\0";
@@ -3472,11 +3472,11 @@ int main(int argc, char **argv)
     // process halrmt command line args
     while((opt = getopt_long(argc, argv, "e:n:p:s:w:", longopts, NULL)) != -1) {
       switch(opt) {
-        case 'e': strncpy(enablePWD, optarg, strlen(optarg) + 1); break;
-        case 'n': strncpy(serverName, optarg, strlen(optarg) + 1); break;
+        case 'e': snprintf(enablePWD, sizeof(enablePWD), "%s", optarg); break;
+        case 'n': snprintf(serverName, sizeof(serverName), "%s", optarg); break;
         case 'p': sscanf(optarg, "%d", &port); break;
         case 's': sscanf(optarg, "%d", &maxSessions); break;
-        case 'w': strncpy(pwd, optarg, strlen(optarg) + 1); break;
+        case 'w': snprintf(pwd, sizeof(pwd), "%s", optarg); break;
         }
       }
 

src/hal/utils/miscgtk.c

@@ -159,21 +159,16 @@ void gtk_label_size_to_fit(GtkLabel * label, const gchar * str)
 {
     GtkRequisition req;
     const gchar *current_text;
-    gint text_len;
     gchar *text_buf;
 
     /* get a pointer to the current text */
     current_text = gtk_label_get_text(label);
-    /* how long is it */
-    text_len = strlen(current_text);
-    /* allocate memory to save it */
-    text_buf = malloc(text_len + 2);
+    /* make a temporary copy */
+    text_buf = strdup(current_text);
     if (text_buf == NULL) {
-	printf("gtk_label_size_to_fit() - malloc failed\n");
+	printf("gtk_label_size_to_fit() - strdup failed\n");
 	return;
     }
-    /* save the text */
-    strncpy(text_buf, current_text, text_len + 1);
     /* set the label to display the new text */
     gtk_label_set_text(label, str);
     /* how big is the label with the new text? */