https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90624
Bug ID: 90624
Summary: nt_spawnve() may use stack variable escape_char
uninitialized (in gcc/ada/terminals.c)
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
Assignee: unassigned at gcc dot gnu.org
Reporter: adamrichter4 at gmail dot com
CC: adamrichter4 at gmail dot com
Target Milestone: ---
cppcheck noticed that, in pristine gcc-9.1.0 from ftp.gnu.org, in the
file gcc-9.1.0/gcc/ada/terminals.c, the static function nt_spawnve
contains a local variable escape_char that appears to be used in some
string processing without its value ever being set. I believe that
the value of escape_char is actually never set, because the static
variable Vw32_quote_process_args is always zero.
I have not attempted to build gcc-9.1.0 with Ada enabled, because I am
basically just trying cppcheck on a bunch of different source trees. However,
I have installed gcc-9.1.0 and could try building the Ada support if that would
really help with processing of this bug report.
I do not have a proposed patch at this point because I am not sure what value
escape_char should default to. My guess is '\\'.
The public function __gnat_setup_child_communication is the only function that
calls nt_spawnve. __gnat_setup_child_communication does not appear to be
called by anything in the gcc source tree, so I am guessing that this is some
for some runtime support library similar to libgcc.
Thanks for considering this report of a possible bug.
