espressif/binutils-gdb
1
0
Fork 0
mirror of https://github.com/espressif/binutils-gdb.git synced 2025-10-18 05:12:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Expand preprocessor macros in C expressions.

Browse Source 
* 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.
This commit is contained in:
Jim Blandy
2002-05-17 17:57:48 +00:00
parent 1c509ca821
commit 84f0252a03
7 changed files with 211 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
gdb/parser-defs.h
View File

@ -37,6 +37,12 @@ extern int expout_ptr;
extern struct block *expression_context_block;
/* If expression_context_block is non-zero, then this is the PC within
the block that we want to evaluate expressions at. When debugging
C or C++ code, we use this to find the exact line we're at, and
then look up the macro definitions active at that point. */
CORE_ADDR expression_context_pc;
/* The innermost context required by the stack and register variables
we've encountered so far. */
extern struct block *innermost_block;