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| author | dodji <dodji@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-04-30 11:43:57 +0000 |
|---|---|---|
| committer | dodji <dodji@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-04-30 11:43:57 +0000 |
| commit | 7edb10625104be0ca3dcce2ff1a29bf1e11bf047 (patch) | |
| tree | e79bab429f035c8a49182501433c80c03c767993 /gcc/c-family/c.opt | |
| parent | 611f1003dbf4ebb341c2eda0fcc0e058c421eb6b (diff) | |
| download | gcc-7edb10625104be0ca3dcce2ff1a29bf1e11bf047.tar.gz | |
Add -Wvarargs option
Several warnings related to questionable usage cases of variadic
function related macros (like va_start) could not be controlled by any
warning-related macro. Fixed thus, by introducing the -Wvarargs
option.
Tested on x86_64-unknown-linux-gnu against trunk.
gcc/c-family/
* c.opt (Wvarargs): Define new option.
gcc/
* builtins.c (fold_builtin_next_arg): Use OPT_Wvarargs as an
argument for the various warning_at calls.
gcc/doc/
* invoke.texi: Update the documentation.
gcc/testsuite/
* c-c++-common/Wvarargs.c: New test case.
* c-c++-common/Wvarargs-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@186978 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-family/c.opt')
| -rw-r--r-- | gcc/c-family/c.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt index ff8ce94f96c..d2cf6ee6caa 100644 --- a/gcc/c-family/c.opt +++ b/gcc/c-family/c.opt @@ -689,6 +689,10 @@ Wvariadic-macros C ObjC C++ ObjC++ Warning Do not warn about using variadic macros when -pedantic +Wvarargs +C ObjC C++ ObjC++ Warning Var(warn_varargs) Init(1) +Warn about questionable usage of the macros used to retrieve variable arguments + Wvla C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning Warn if a variable length array is used |