[commit]: Turn on initial Ada support

[Paul Hilfinger <hilfingr@gnat.com>]

As promised, I have committed the approved patches to Makefile.in and 
symtab.c that turn on initial Ada support in GDB.  "Initial" here means
"quite limited for the moment", encompassing mostly expression evaluation.
Now that the process is finally started, we can hope to get the rest of
the AdaCore changes in somewhat more expeditiously.  

As indicated in previous mail, this checkin has the side-effect of
requiring flex to build.

Checkins of documentation and NEWS will be occur soon.

P. Hilfinger

2004-10-02  Paul N. Hilfinger  <Hilfinger@gnat.com>

        Turn on initial Ada support (mainly expression evaluation).
	
        * Makefile.in (SFILES): Remove ada-tasks.c.
	(HFILES_NO_SRCDIR): Add ada-lang.h.
	(COMMON_OBS): Add ada-lang.o, ada-typeprint.o, ada-valprint.o.
	(YYOBJ): Add ada-exp.o.
	(rule .l.c): Generalize to not mention ada.
	* symtab.c: Include ada-lang.h.
	(symbol_natural_name, symbol_demangled_name)
	(symbol_search_name): Add Ada case.

Index: gdb/Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.635
diff -u -p -r1.635 Makefile.in
--- gdb/Makefile.in	1 Oct 2004 17:26:09 -0000	1.635
+++ gdb/Makefile.in	2 Oct 2004 09:12:24 -0000
@@ -510,7 +510,7 @@ TARGET_FLAGS_TO_PASS = \
 # Links made at configuration time should not be specified here, since
 # SFILES is used in building the distribution archive.
 
-SFILES = ada-exp.y ada-lang.c ada-typeprint.c ada-valprint.c ada-tasks.c \
+SFILES = ada-exp.y ada-lang.c ada-typeprint.c ada-valprint.c  \
 	ax-general.c ax-gdb.c \
 	bcache.c \
 	bfd-target.c \
@@ -848,7 +848,7 @@ HFILES_NO_SRCDIR = bcache.h buildsym.h c
 	symfile.h symfile-mem.h stabsread.h target.h terminal.h typeprint.h \
 	xcoffsolib.h \
 	macrotab.h macroexp.h macroscope.h \
-	c-lang.h f-lang.h \
+	ada-lang.h c-lang.h f-lang.h \
 	jv-lang.h \
 	m2-lang.h  p-lang.h \
 	complaints.h valprint.h \
@@ -910,7 +910,7 @@ COMMON_OBS = $(DEPFILES) $(YYOBJ) \
 	dbxread.o coffread.o coff-pe-read.o elfread.o \
 	dwarfread.o dwarf2read.o mipsread.o stabsread.o corefile.o \
 	dwarf2expr.o dwarf2loc.o dwarf2-frame.o \
-	c-lang.o f-lang.o objc-lang.o \
+	ada-lang.o c-lang.o f-lang.o objc-lang.o \
 	ui-out.o cli-out.o \
 	varobj.o wrapper.o \
 	jv-lang.o jv-valprint.o jv-typeprint.o \
@@ -918,8 +918,8 @@ COMMON_OBS = $(DEPFILES) $(YYOBJ) \
 	scm-exp.o scm-lang.o scm-valprint.o \
 	sentinel-frame.o \
 	complaints.o typeprint.o \
-	c-typeprint.o f-typeprint.o m2-typeprint.o \
-	c-valprint.o cp-valprint.o f-valprint.o m2-valprint.o \
+	ada-typeprint.o c-typeprint.o f-typeprint.o m2-typeprint.o \
+	ada-valprint.o c-valprint.o cp-valprint.o f-valprint.o m2-valprint.o \
 	nlmread.o serial.o mdebugread.o top.o utils.o \
 	ui-file.o \
 	user-regs.o \
@@ -943,6 +943,7 @@ YYFILES = c-exp.c \
 	f-exp.c m2-exp.c p-exp.c
 YYOBJ = c-exp.o \
 	objc-exp.o \
+	ada-exp.o \
 	jv-exp.o \
 	f-exp.o m2-exp.o p-exp.o
 
@@ -1585,7 +1586,7 @@ po/$(PACKAGE).pot: force
 	    echo $(FLEX) -Isit $< ">" $@; \
 	    $(FLEX) -Isit $< > $@; \
 	elif [ ! -f $@ -a ! -f $< ]; then \
-	    echo "ada-lex.c missing and flex not available."; \
+	    echo "$< missing and flex not available."; \
 	    false; \
 	elif [ ! -f $@ ]; then \
 	    echo "Warning: $*.c older than $*.l and flex not available."; \
Index: gdb/symtab.c
===================================================================
RCS file: /cvs/src/src/gdb/symtab.c,v
retrieving revision 1.139
diff -u -p -r1.139 symtab.c
--- gdb/symtab.c	20 Sep 2004 20:18:39 -0000	1.139
+++ gdb/symtab.c	2 Oct 2004 09:12:24 -0000
@@ -41,6 +41,7 @@
 #include "source.h"
 #include "filenames.h"		/* for FILENAME_CMP */
 #include "objc-lang.h"
+#include "ada-lang.h"
 
 #include "hashtab.h"
 
@@ -634,17 +635,24 @@ symbol_init_demangled_name (struct gener
 char *
 symbol_natural_name (const struct general_symbol_info *gsymbol)
 {
-  if ((gsymbol->language == language_cplus
-       || gsymbol->language == language_java
-       || gsymbol->language == language_objc)
-      && (gsymbol->language_specific.cplus_specific.demangled_name != NULL))
+  switch (gsymbol->language) 
     {
-      return gsymbol->language_specific.cplus_specific.demangled_name;
-    }
-  else
-    {
-      return gsymbol->name;
+    case language_cplus:
+    case language_java:
+    case language_objc:
+      if (gsymbol->language_specific.cplus_specific.demangled_name != NULL)
+	return gsymbol->language_specific.cplus_specific.demangled_name;
+      break;
+    case language_ada:
+      if (gsymbol->language_specific.cplus_specific.demangled_name != NULL)
+	return gsymbol->language_specific.cplus_specific.demangled_name;
+      else
+	return ada_decode_symbol (gsymbol);
+      break;
+    default:
+      break;
     }
+  return gsymbol->name;
 }
 
 /* Return the demangled name for a symbol based on the language for
@@ -652,13 +660,24 @@ symbol_natural_name (const struct genera
 char *
 symbol_demangled_name (struct general_symbol_info *gsymbol)
 {
-  if (gsymbol->language == language_cplus
-      || gsymbol->language == language_java
-      || gsymbol->language == language_objc)
-    return gsymbol->language_specific.cplus_specific.demangled_name;
-
-  else 
-    return NULL;
+  switch (gsymbol->language) 
+    {
+    case language_cplus:
+    case language_java:
+    case language_objc:
+      if (gsymbol->language_specific.cplus_specific.demangled_name != NULL)
+	return gsymbol->language_specific.cplus_specific.demangled_name;
+      break;
+    case language_ada:
+      if (gsymbol->language_specific.cplus_specific.demangled_name != NULL)
+	return gsymbol->language_specific.cplus_specific.demangled_name;
+      else
+	return ada_decode_symbol (gsymbol);
+      break;
+    default:
+      break;
+    }
+  return NULL;
 }
 
 /* Return the search name of a symbol---generally the demangled or
@@ -666,7 +685,10 @@ symbol_demangled_name (struct general_sy
    If there is no distinct demangled name, then returns the same value 
    (same pointer) as SYMBOL_LINKAGE_NAME. */
 char *symbol_search_name (const struct general_symbol_info *gsymbol) {
-  return symbol_natural_name (gsymbol);
+  if (gsymbol->language == language_ada)
+    return gsymbol->name;
+  else
+    return symbol_natural_name (gsymbol);
 }
 
 /* Initialize the structure fields to zero values.  */