Hi! This fixes another not NUL terminated string literal that is created in tree-ssa-forwprop.c at simplify_builtin_call.
src_buf is set up to contain a NUL at src_buf[src_len], thus use src_len + 1 as length parameter to build_string_literal. All other uses of build_string_literal do it right, as far as I can see. Bootstrapped and reg-tested on x86_64-pc-linux-gnu. Is it OK for trunk? Thanks Bernd.
2018-07-29 Bernd Edlinger <bernd.edlin...@hotmail.de> * tree-ssa-forwprop.c (simplify_builtin_call): Don't create a not NUL terminated string literal. Index: gcc/tree-ssa-forwprop.c =================================================================== --- gcc/tree-ssa-forwprop.c (revision 263045) +++ gcc/tree-ssa-forwprop.c (working copy) @@ -1391,7 +1391,7 @@ simplify_builtin_call (gimple_stmt_iterator *gsi_p src_buf, ptr1_align, false)) break; - new_str_cst = build_string_literal (src_len, src_buf); + new_str_cst = build_string_literal (src_len + 1, src_buf); if (callee1) { /* If STMT1 is a mem{,p}cpy call, adjust it and remove