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SUSE:SLE-12:Update
cross-ppc-gcc48-icecream-backend.31962
Wunprototyped-calls.diff
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File Wunprototyped-calls.diff of Package cross-ppc-gcc48-icecream-backend.31962
Index: gcc/c-family/c.opt =================================================================== --- gcc/c-family/c.opt.orig 2013-03-18 09:43:30.187894777 +0100 +++ gcc/c-family/c.opt 2014-03-04 10:11:11.466977906 +0100 @@ -757,6 +757,10 @@ Wunused-local-typedefs C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning EnabledBy(Wunused) Warn when typedefs locally defined in a function are not used +Wunprototyped-calls +C Var(warn_unprototyped_calls) Warning LangEnabledBy(C,Wall) +Warn about calls to unprototyped functions with at least one argument + Wunused-macros C ObjC C++ ObjC++ Var(cpp_warn_unused_macros) Warning Warn about macros defined in the main file that are not used Index: gcc/c/c-typeck.c =================================================================== --- gcc/c/c-typeck.c.orig 2014-02-03 10:38:52.670371071 +0100 +++ gcc/c/c-typeck.c 2014-03-04 10:09:29.501984926 +0100 @@ -2833,6 +2833,19 @@ build_function_call_vec (location_t loc, && !check_builtin_function_arguments (fundecl, nargs, argarray)) return error_mark_node; + /* If we cannot check function arguments because a prototype is + missing for the callee, warn here. */ + if (warn_unprototyped_calls + && nargs > 0 && !TYPE_ARG_TYPES (fntype) + && fundecl && !DECL_BUILT_IN (fundecl) && !C_DECL_IMPLICIT (fundecl) + && !DECL_ARGUMENTS (fundecl)) + { + if (warning (OPT_Wunprototyped_calls, + "call to function %qD without a real prototype", fundecl)) + inform (DECL_SOURCE_LOCATION (fundecl), "%qD was declared here", + fundecl); + } + /* Check that the arguments to the function are valid. */ check_function_arguments (fntype, nargs, argarray); Index: gcc/testsuite/gcc.dg/cleanup-1.c =================================================================== --- gcc/testsuite/gcc.dg/cleanup-1.c.orig 2013-03-18 09:45:44.668349955 +0100 +++ gcc/testsuite/gcc.dg/cleanup-1.c 2014-03-04 10:09:29.501984926 +0100 @@ -6,7 +6,7 @@ #define C(x) __attribute__((cleanup(x))) static int f1(void *x U) { return 0; } -static void f2() { } +static void f2() { } /* { dg-message "declared here" "" } */ static void f3(void) { } /* { dg-message "note: declared here" } */ static void f4(void *x U) { } static void f5(int *x U) { } @@ -18,7 +18,7 @@ static void f9(int x U) { } /* { dg-mess void test(void) { int o1 C(f1); - int o2 C(f2); + int o2 C(f2); /* { dg-warning "without a real prototype" } */ int o3 C(f3); /* { dg-error "too many arguments" } */ int o4 C(f4); int o5 C(f5);
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