70cd4cbe65
In the initial code I missed one level of pointer indirection. Instead of storing errno in impure_data, _impure_ptr was corrupted. Only simulator is impacted. Real targets have no OS and no syscalls. This resolves a bunch of stdio cases from the GCC testsuite: FAIL->PASS: gcc.c-torture/execute/printf-2.c -O0 execution test Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>