diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 65 |
1 files changed, 29 insertions, 36 deletions
@@ -6042,41 +6042,48 @@ clean_symbol_name (char *p) *p = '_'; } -/* Generate a name for a function unique to this translation unit. +/* Generate a name for a special-purpose function function. + The generated name may need to be unique across the whole link. TYPE is some string to identify the purpose of this function to the - linker or collect2. */ + linker or collect2; it must start with an uppercase letter, + one of: + I - for constructors + D - for destructors + N - for C++ anonymous namespaces + F - for DWARF unwind frame information. */ tree -get_file_function_name_long (const char *type) +get_file_function_name (const char *type) { char *buf; const char *p; char *q; + /* If we already have a name we know to be unique, just use that. */ if (first_global_object_name) + p = first_global_object_name; + /* If the target is handling the constructors/destructors, they + will be local to this file and the name is only necessary for + debugging purposes. */ + else if ((type[0] == 'I' || type[0] == 'D') && targetm.have_ctors_dtors) { - p = first_global_object_name; - - /* For type 'F', the generated name must be unique not only to this - translation unit but also to any given link. Since global names - can be overloaded, we concatenate the first global object name - with a string derived from the file name of this object. */ - if (!strcmp (type, "F")) - { - const char *file = main_input_filename; - - if (! file) - file = input_filename; - - q = alloca (strlen (p) + 10); - sprintf (q, "%s_%08X", p, crc32_string (0, file)); - - p = q; - } + const char *file = main_input_filename; + if (! file) + file = input_filename; + /* Just use the file's basename, because the full pathname + might be quite long. */ + p = strrchr (file, '/'); + if (p) + p++; + else + p = file; + p = q = ASTRDUP (p); + clean_symbol_name (q); } else { - /* We don't have anything that we know to be unique to this translation + /* Otherwise, the name must be unique across the entire link. + We don't have anything that we know to be unique to this translation unit, so use what we do have and throw in some randomness. */ unsigned len; const char *name = weak_global_object_name; @@ -6108,20 +6115,6 @@ get_file_function_name_long (const char *type) return get_identifier (buf); } - -/* If KIND=='I', return a suitable global initializer (constructor) name. - If KIND=='D', return a suitable global clean-up (destructor) name. */ - -tree -get_file_function_name (int kind) -{ - char p[2]; - - p[0] = kind; - p[1] = 0; - - return get_file_function_name_long (p); -} #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) |