Expand preprocessor macros in C expressions.

[platform/upstream/binutils.git] / gdb / ChangeLog

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@@ -1,3 +1,31 @@
+2002-05-17  Jim Blandy  <jimb@redhat.com>
+
+       Expand preprocessor macros in C expressions.
+       * c-lang.h: #include "macroexp.h", for macro_lookup_ftype.
+       (scan_macro_expansion, scanning_macro_expansion,
+       finished_macro_expansion): New function declarations.
+       (expression_macro_lookup_func, expression_macro_lookup_baton): New
+       variable declarations.
+       * parser-defs.h (expression_context_pc): New declaration.
+       * parse.c (expression_context_pc): New variable.
+       (parse_exp_1): Set expression_context_pc, as well as
+       expression_context_block.
+       * c-exp.y (yylex): If we're not already reading the result of a
+       macro expansion, try to macro-expand the next token.  When we're
+       done scanning a macro expansion, switch back to the mainline text.
+       Commas and `if's in a macro's expansion don't terminate the input.
+       * c-lang.c: #include "macroscope.h" and "gdb_assert.h".
+       (macro_original_text, macro_expanded_text,
+       expression_macro_lookup_func, expression_macro_lookup_baton): New
+       variables.
+       (scan_macro_expansion, scanning_macro_expansion,
+       finished_macro_expansion, scan_macro_cleanup, null_macro_lookup,
+       c_preprocess_and_parse): New functions.
+       (c_language_defn, cplus_language_defn, asm_language_defn): Call
+       c_preprocess_and_parse, instead of c_parse.
+       * Makefile.in (c_lang_h): Note that this #includes macroexp.h.
+       (c-lang.o): Note dependency on macroscope.h and gdb_assert.h.
+
 Fri May 17 14:26:19 2002  J"orn Rennecke <joern.rennecke@superh.com>
 
        * sh-tdep.c (gdb_print_insn_sh64): Delete.