diff options
Diffstat (limited to 'gcc/c-format.c')
| -rw-r--r-- | gcc/c-format.c | 80 |
1 files changed, 75 insertions, 5 deletions
diff --git a/gcc/c-format.c b/gcc/c-format.c index a532259750c..620277ff604 100644 --- a/gcc/c-format.c +++ b/gcc/c-format.c @@ -2518,9 +2518,27 @@ init_dynamic_asm_fprintf_info (void) length modifier to work, one must have issued: "typedef HOST_WIDE_INT __gcc_host_wide_int__;" in one's source code prior to using that modifier. */ - if (!(hwi = maybe_get_identifier ("__gcc_host_wide_int__")) - || !(hwi = DECL_ORIGINAL_TYPE (identifier_global_value (hwi)))) + hwi = maybe_get_identifier ("__gcc_host_wide_int__"); + if (!hwi) + { + error ("'__gcc_host_wide_int__' is not defined as a type"); + return; + } + hwi = identifier_global_value (hwi); + if (!hwi || TREE_CODE (hwi) != TYPE_DECL) + { + error ("'__gcc_host_wide_int__' is not defined as a type"); + return; + } + hwi = DECL_ORIGINAL_TYPE (hwi); + if (!hwi) abort (); + if (hwi != long_integer_type_node && hwi != long_long_integer_type_node) + { + error ("'__gcc_host_wide_int__' is not defined as 'long'" + " or 'long long'"); + return; + } /* Create a new (writable) copy of asm_fprintf_length_specs. */ new_asm_fprintf_length_specs = xmemdup (asm_fprintf_length_specs, @@ -2563,19 +2581,71 @@ init_dynamic_diag_info (void) However we don't force a hard ICE because we may see only one or the other type. */ if ((loc = maybe_get_identifier ("location_t"))) - loc = TREE_TYPE (identifier_global_value (loc)); + { + loc = identifier_global_value (loc); + if (loc) + { + if (TREE_CODE (loc) != TYPE_DECL) + { + error ("'location_t' is not defined as a type"); + loc = 0; + } + else + loc = TREE_TYPE (loc); + } + } /* We need to grab the underlying `union tree_node' so peek into an extra type level. */ if ((t = maybe_get_identifier ("tree"))) - t = TREE_TYPE (TREE_TYPE (identifier_global_value (t))); + { + t = identifier_global_value (t); + if (t) + { + if (TREE_CODE (t) != TYPE_DECL) + { + error ("'tree' is not defined as a type"); + t = 0; + } + else if (TREE_CODE (TREE_TYPE (t)) != POINTER_TYPE) + { + error ("'tree' is not defined as a pointer type"); + t = 0; + } + else + t = TREE_TYPE (TREE_TYPE (t)); + } + } /* Find the underlying type for HOST_WIDE_INT. For the %w length modifier to work, one must have issued: "typedef HOST_WIDE_INT __gcc_host_wide_int__;" in one's source code prior to using that modifier. */ if ((hwi = maybe_get_identifier ("__gcc_host_wide_int__"))) - hwi = DECL_ORIGINAL_TYPE (identifier_global_value (hwi)); + { + hwi = identifier_global_value (hwi); + if (hwi) + { + if (TREE_CODE (hwi) != TYPE_DECL) + { + error ("'__gcc_host_wide_int__' is not defined as a type"); + hwi = 0; + } + else + { + hwi = DECL_ORIGINAL_TYPE (hwi); + if (!hwi) + abort (); + if (hwi != long_integer_type_node + && hwi != long_long_integer_type_node) + { + error ("'__gcc_host_wide_int__' is not defined" + " as 'long' or 'long long'"); + hwi = 0; + } + } + } + } /* Assign the new data for use. */ |