gcc/testsuite/jit.dg/test-error-pr63969-missing-driver.c

   1 /* PR jit/63969: libgccjit would segfault inside gcc_jit_context_compile
   2    if the driver wasn't found on PATH if GCC_JIT_STR_OPTION_PROGNAME was
   3    NULL.  */
   4
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7
   8 #include "libgccjit.h"
   9
  10 #include "harness.h"
  11
  12 void
  13 create_code (gcc_jit_context *ctxt, void *user_data)
  14 {
  15   /* Create nothing within the context.  */
  16
  17   /* harness.h's set_options has set a sane value for
  18      GCC_JIT_STR_OPTION_PROGNAME, but PR jit/63969 only segfaulted if it's
  19      NULL.
  20
  21      Unset it.  */
  22   gcc_jit_context_set_str_option (ctxt, GCC_JIT_STR_OPTION_PROGNAME, NULL);
  23
  24   /* By default, we use an embedded copy of the driver.
  25      Opt-in to using an external copy of the driver.  */
  26   gcc_jit_context_set_bool_use_external_driver (ctxt, 1);
  27
  28   /* Break PATH, so that the driver can't be found
  29      by gcc::jit::playback::context::compile ()
  30      within gcc_jit_context_compile.  */
  31   unsetenv ("PATH");
  32 }
  33
  34 void
  35 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  36 {
  37   CHECK_VALUE (result, NULL);
  38
  39   /* Verify that a sane error message was emitted.  */
  40   CHECK_STRING_STARTS_WITH (gcc_jit_context_get_first_error (ctxt),
  41                             "error invoking gcc driver");
  42 }