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Bail out if MALLOC_PERTURB_ is unset to avoid unexpected behavior

develop
lethosor 2020-04-02 01:48:21 -04:00
parent 1024f39a26
commit 06201a4c6a
1 changed files with 17 additions and 0 deletions
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17
plugins/devel/check-structures-sanity/main.cpp
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@ -33,8 +33,25 @@ DFhackCExport command_result plugin_init(color_ostream &, std::vector<PluginComm
return CR_OK; return CR_OK;
} }
bool check_malloc_perturb()
{
struct T_test {
int32_t data[1024];
};
auto test = new T_test;
bool ret = (test->data[0] == 0xd2d2d2d2);
delete test;
return ret;
}
static command_result command(color_ostream & out, std::vector<std::string> & parameters) static command_result command(color_ostream & out, std::vector<std::string> & parameters)
{ {
if (!check_malloc_perturb())
{
out.printerr("check-structures-sanity: MALLOC_PERTURB_ not set, cannot continue\n");
return CR_FAILURE;
}
CoreSuspender suspend; CoreSuspender suspend;
Checker checker(out); Checker checker(out);