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Diffstat (limited to 'gcc/doc/cppopts.texi')
| -rw-r--r-- | gcc/doc/cppopts.texi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/doc/cppopts.texi b/gcc/doc/cppopts.texi index b2252367ef5..ef3a0b2f196 100644 --- a/gcc/doc/cppopts.texi +++ b/gcc/doc/cppopts.texi @@ -583,6 +583,19 @@ correct column numbers in warnings or errors, even if tabs appear on the line. If the value is less than 1 or greater than 100, the option is ignored. The default is 8. +@item -fdebug-cpp +@opindex fdebug-cpp +This option is only useful for debugging GCC. When used with +@option{-E}, dumps debugging information about location maps. Every +token in the output is preceded by the dump of the map its location +belongs to. The dump of the map holding the location of a token would +be: +@quotation +@{@samp{P}:@file{/file/path};@samp{F}:@file{/includer/path};@samp{L}:@var{line_num};@samp{C}:@var{col_num};@samp{S}:@var{system_header_p};@samp{M}:@var{map_address};@samp{E}:@var{macro_expansion_p},@samp{loc}:@var{location}@} +@end quotation + +When used without @option{-E}, this option has no effect. + @item -ftrack-macro-expansion@r{[}=@var{level}@r{]} @opindex ftrack-macro-expansion Track locations of tokens across macro expansions. This allows the |