#include "config.h"
#undef FLOAT
#undef FFS
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "version.h"
#include "tm_p.h"
#include "flags.h"
#include "input.h"
#include "toplev.h"
#include "intl.h"
#include "diagnostic.h"
#include "langhooks.h"
#include "langhooks-def.h"
static char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1;
static void default_diagnostic_starter (diagnostic_context *,
diagnostic_info *);
static void default_diagnostic_finalizer (diagnostic_context *,
diagnostic_info *);
static void error_recursion (diagnostic_context *) ATTRIBUTE_NORETURN;
static bool diagnostic_count_diagnostic (diagnostic_context *,
diagnostic_info *);
static void diagnostic_action_after_output (diagnostic_context *,
diagnostic_info *);
static void real_abort (void) ATTRIBUTE_NORETURN;
static diagnostic_context global_diagnostic_context;
diagnostic_context *global_dc = &global_diagnostic_context;
static int gcc_error_colon = 0;
#ifdef EXIT_FROM_FATAL_DIAGNOSTIC
#define exit(status) EXIT_FROM_FATAL_DIAGNOSTIC (status)
#endif
static char *
build_message_string (const char *msg, ...)
{
char *str;
va_list ap;
va_start (ap, msg);
vasprintf (&str, msg, ap);
va_end (ap);
return str;
}
char *
file_name_as_prefix (const char *f)
{
if (gcc_error_colon)
return build_message_string ("%s: error: ", f);
else
return build_message_string ("%s: ", f);
}
void
diagnostic_initialize (diagnostic_context *context)
{
context->printer = xmalloc (sizeof (pretty_printer));
pp_construct (context->printer, NULL, 0);
context->printer->buffer->stream = stderr;
context->printer->prefixing_rule = DIAGNOSTICS_SHOW_PREFIX_ONCE;
memset (context->diagnostic_count, 0, sizeof context->diagnostic_count);
context->issue_warnings_are_errors_message = true;
context->warning_as_error_requested = false;
context->abort_on_error = false;
context->internal_error = NULL;
diagnostic_starter (context) = default_diagnostic_starter;
diagnostic_finalizer (context) = default_diagnostic_finalizer;
context->last_module = 0;
context->last_function = NULL;
context->lock = 0;
}
void
diagnostic_set_info (diagnostic_info *diagnostic, const char *gmsgid,
va_list *args, location_t location,
diagnostic_t kind)
{
diagnostic->message.err_no = errno;
diagnostic->message.args_ptr = args;
diagnostic->message.format_spec = _(gmsgid);
diagnostic->location = location;
diagnostic->kind = kind;
}
char *
diagnostic_build_prefix (diagnostic_info *diagnostic)
{
static const char *const diagnostic_kind_text[] = {
#define DEFINE_DIAGNOSTIC_KIND(K, T) (T),
#include "diagnostic.def"
#undef DEFINE_DIAGNOSTIC_KIND
"must-not-happen"
};
expanded_location s = expand_location (diagnostic->location);
gcc_assert (diagnostic->kind < DK_LAST_DIAGNOSTIC_KIND);
return s.file
? build_message_string ("%s:%d: %s",
s.file, s.line,
_(diagnostic_kind_text[diagnostic->kind]))
: build_message_string ("%s: %s", progname,
_(diagnostic_kind_text[diagnostic->kind]));
}
static bool
diagnostic_count_diagnostic (diagnostic_context *context,
diagnostic_info *diagnostic)
{
diagnostic_t kind = diagnostic->kind;
{
static int done = 0;
if (!done)
{
done = 1;
if (getenv ("GCC_DASH_W"))
inhibit_warnings = 1;
if (getenv ("GCC_ERROR_COLON"))
gcc_error_colon = 1;
}
}
switch (kind)
{
default:
gcc_unreachable ();
case DK_ICE:
#ifndef ENABLE_CHECKING
if ((diagnostic_kind_count (context, DK_ERROR) > 0
|| diagnostic_kind_count (context, DK_SORRY) > 0)
&& !context->abort_on_error)
{
expanded_location s = expand_location (diagnostic->location);
fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n",
s.file, s.line);
exit (FATAL_EXIT_CODE);
}
#endif
if (context->internal_error)
(*context->internal_error) (diagnostic->message.format_spec,
diagnostic->message.args_ptr);
case DK_FATAL: case DK_SORRY:
case DK_ANACHRONISM: case DK_NOTE:
++diagnostic_kind_count (context, kind);
break;
case DK_WARNING:
if (!diagnostic_report_warnings_p ())
return false;
if (!context->warning_as_error_requested)
{
++diagnostic_kind_count (context, DK_WARNING);
break;
}
else if (context->issue_warnings_are_errors_message)
{
pp_verbatim (context->printer,
"%s: warnings being treated as errors\n", progname);
context->issue_warnings_are_errors_message = false;
}
case DK_ERROR:
++diagnostic_kind_count (context, DK_ERROR);
break;
}
return true;
}
static void
diagnostic_action_after_output (diagnostic_context *context,
diagnostic_info *diagnostic)
{
switch (diagnostic->kind)
{
case DK_DEBUG:
case DK_NOTE:
case DK_ANACHRONISM:
case DK_WARNING:
break;
case DK_ERROR:
case DK_SORRY:
if (context->abort_on_error)
real_abort ();
if (flag_fatal_errors)
{
fnotice (stderr, "compilation terminated due to -Wfatal-errors.\n");
exit (FATAL_EXIT_CODE);
}
break;
case DK_ICE:
if (context->abort_on_error)
real_abort ();
fnotice (stderr, "Please submit a full bug report,\n"
"with preprocessed source if appropriate.\n"
"See %s for instructions.\n", bug_report_url);
exit (FATAL_EXIT_CODE);
case DK_FATAL:
if (context->abort_on_error)
real_abort ();
fnotice (stderr, "compilation terminated.\n");
exit (FATAL_EXIT_CODE);
default:
gcc_unreachable ();
}
}
void
diagnostic_report_current_function (diagnostic_context *context)
{
diagnostic_report_current_module (context);
lang_hooks.print_error_function (context, input_filename);
}
void
diagnostic_report_current_module (diagnostic_context *context)
{
struct file_stack *p;
if (pp_needs_newline (context->printer))
{
pp_newline (context->printer);
pp_needs_newline (context->printer) = false;
}
p = input_file_stack;
if (p && diagnostic_last_module_changed (context))
{
expanded_location xloc = expand_location (p->location);
pp_verbatim (context->printer,
"In file included from %s:%d",
xloc.file, xloc.line);
while ((p = p->next) != NULL)
{
xloc = expand_location (p->location);
pp_verbatim (context->printer,
",\n from %s:%d",
xloc.file, xloc.line);
}
pp_verbatim (context->printer, ":\n");
diagnostic_set_last_module (context);
}
}
static void
default_diagnostic_starter (diagnostic_context *context,
diagnostic_info *diagnostic)
{
diagnostic_report_current_function (context);
pp_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
}
static void
default_diagnostic_finalizer (diagnostic_context *context,
diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
{
pp_destroy_prefix (context->printer);
}
void
diagnostic_report_diagnostic (diagnostic_context *context,
diagnostic_info *diagnostic)
{
if (context->lock > 0)
{
if (diagnostic->kind == DK_ICE && context->lock == 1)
pp_flush (context->printer);
else
error_recursion (context);
}
context->lock++;
if (diagnostic_count_diagnostic (context, diagnostic))
{
pp_prepare_to_format (context->printer, &diagnostic->message,
&diagnostic->location);
(*diagnostic_starter (context)) (context, diagnostic);
pp_format_text (context->printer, &diagnostic->message);
(*diagnostic_finalizer (context)) (context, diagnostic);
pp_flush (context->printer);
diagnostic_action_after_output (context, diagnostic);
}
context->lock--;
}
const char *
trim_filename (const char *name)
{
static const char this_file[] = __FILE__;
const char *p = name, *q = this_file;
while (p[0] == '.' && p[1] == '.' && IS_DIR_SEPARATOR (p[2]))
p += 3;
while (q[0] == '.' && q[1] == '.' && IS_DIR_SEPARATOR (q[2]))
q += 3;
while (*p == *q && *p != 0 && *q != 0)
p++, q++;
while (p > name && !IS_DIR_SEPARATOR (p[-1]))
p--;
return p;
}
void
verbatim (const char *gmsgid, ...)
{
text_info text;
va_list ap;
va_start (ap, gmsgid);
text.err_no = errno;
text.args_ptr = ≈
text.format_spec = _(gmsgid);
pp_format_verbatim (global_dc->printer, &text);
pp_flush (global_dc->printer);
va_end (ap);
}
void
inform (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_NOTE);
report_diagnostic (&diagnostic);
va_end (ap);
}
void
warning (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_WARNING);
report_diagnostic (&diagnostic);
va_end (ap);
}
void
pedwarn (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location,
pedantic_error_kind ());
report_diagnostic (&diagnostic);
va_end (ap);
}
void
error (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ERROR);
report_diagnostic (&diagnostic);
va_end (ap);
}
void
sorry (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_SORRY);
report_diagnostic (&diagnostic);
va_end (ap);
}
void
fatal_error (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_FATAL);
report_diagnostic (&diagnostic);
va_end (ap);
gcc_unreachable ();
}
void
internal_error (const char *gmsgid, ...)
{
diagnostic_info diagnostic;
va_list ap;
va_start (ap, gmsgid);
diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ICE);
report_diagnostic (&diagnostic);
va_end (ap);
gcc_unreachable ();
}
void
fnotice (FILE *file, const char *cmsgid, ...)
{
va_list ap;
va_start (ap, cmsgid);
vfprintf (file, _(cmsgid), ap);
va_end (ap);
}
static void
error_recursion (diagnostic_context *context)
{
diagnostic_info diagnostic;
if (context->lock < 3)
pp_flush (context->printer);
fnotice (stderr,
"Internal compiler error: Error reporting routines re-entered.\n");
diagnostic.kind = DK_ICE;
diagnostic_action_after_output (context, &diagnostic);
real_abort ();
}
void
fancy_abort (const char *file, int line, const char *function)
{
internal_error ("in %s, at %s:%d", function, trim_filename (file), line);
}
#undef abort
static void
real_abort (void)
{
abort ();
}