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| author | Jonathan Wakely <jwakely@redhat.com> | 2019-04-10 15:39:59 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2019-04-10 15:39:59 +0100 |
| commit | 07c2fa4665510267112030d500d7b1b7c0f4364e (patch) | |
| tree | 8273fea4e8f11098397660ebde49b4f3cccddc36 /gcc/doc | |
| parent | 620626daa52bb69df06c3ece4d3f0ef65c7f6d9d (diff) | |
| download | gcc-07c2fa4665510267112030d500d7b1b7c0f4364e.zip gcc-07c2fa4665510267112030d500d7b1b7c0f4364e.tar.gz gcc-07c2fa4665510267112030d500d7b1b7c0f4364e.tar.bz2 | |
Clearly document behaviour of multiple -g options
This copies the wording from the -O options to clearly state what
happens if more than one -g option is used.
* doc/invoke.texi (Debugging Options): Explicitly state the semantics
of using multiple -g options.
From-SVN: r270257
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index cfc3063..73a7789 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -7818,6 +7818,9 @@ Level 3 includes extra information, such as all the macro definitions present in the program. Some debuggers support macro expansion when you use @option{-g3}. +If you use multiple @option{-g} options, with or without level numbers, +the last such option is the one that is effective. + @option{-gdwarf} does not accept a concatenated debug level, to avoid confusion with @option{-gdwarf-@var{level}}. Instead use an additional @option{-g@var{level}} option to change the |