[Bug tree-optimization/80523] -Wformat-overflow doesn't consider -fexec-charset

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80523

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Fri Apr 28 22:29:40 2017
New Revision: 247401

URL: https://gcc.gnu.org/viewcvs?rev=247401&root=gcc&view=rev
Log:
PR tree-optimization/80523 -  -Wformat-overflow doesn't consider -fexec-charset

gcc/ChangeLog:

        PR tree-optimization/80523
        * gimple-ssa-sprintf.c (target_to_host_charmap): New global variable.
        (init_target_to_host_charmap, target_to_host, target_strtol10): New
        functions.
        (maybe_warn, format_directive, parse_directive): Use new functions.
        (pass_sprintf_length::execute): Call init_target_to_host_charmap.

gcc/testsuite/ChangeLog:

        PR tree-optimization/80523
        * gcc.dg/tree-ssa/builtin-sprintf-warn-18.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-18.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/c.opt
    trunk/gcc/gimple-ssa-sprintf.c
    trunk/gcc/testsuite/ChangeLog