The two options were included in -Wall and enabled for all front ends but only made to be recognized by the driver for the C family of compilers. That made it impossible to suppress those warnings when compiling code for those other front ends (like Fortran).
The attached patch adjusts the warnings so that they are only enabled for the C family of front ends and not for any others, as per Richard's suggestion. (The other solution would have been to make the warnings available to all front ends. Since non-C languages don't have a way of calling the affected functions -- or do they? -- this is probably not necessary.) Martin
PR driver/80545 - option -Wstringop-overflow not recognized by Fortran gcc/c-family/ChangeLog: PR driver/80545 * c.opt (-Walloc-size-larger-than, -Wstringop-overflow): Enable and make available for the C family only. diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt index 6ecbfca..9ad2f6e 100644 --- a/gcc/c-family/c.opt +++ b/gcc/c-family/c.opt @@ -304,7 +304,7 @@ C ObjC C++ ObjC++ Var(warn_alloca) Warning Warn on any use of alloca. Walloc-size-larger-than= -C ObjC C++ ObjC++ Var(warn_alloc_size_limit) Warning Joined +C ObjC C++ ObjC++ Var(warn_alloc_size_limit) Warning Joined LangEnabledBy(C ObjC C++ ObjC++, Wall) -Walloc-size-larger-than=<bytes> Warn for calls to allocation functions that attempt to allocate objects larger than the specified number of bytes. @@ -716,7 +716,7 @@ Warn about buffer overflow in string manipulation functions like memcpy and strcpy. Wstringop-overflow= -C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_stringop_overflow) Init(2) Warning +C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_stringop_overflow) Warning LangEnabledBy(C ObjC C++ ObjC++, Wall, 2, 0) Under the control of Object Size type, warn about buffer overflow in string manipulation functions like memcpy and strcpy.
