/* Top level of GCC compilers (cc1, cc1plus, etc.)
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
This file is part of GCC.
/* Incremented on each change to input_file_stack. */
int input_file_stack_tick;
+/* Record of input_file_stack at each tick. */
+typedef struct file_stack *fs_p;
+DEF_VEC_P(fs_p);
+DEF_VEC_ALLOC_P(fs_p,heap);
+static VEC(fs_p,heap) *input_file_stack_history;
+
+/* Whether input_file_stack has been restored to a previous state (in
+ which case there should be no more pushing). */
+static bool input_file_stack_restored;
+
/* Name to use as base of names for dump output files. */
const char *dump_base_name;
static const param_info lang_independent_params[] = {
#define DEFPARAM(ENUM, OPTION, HELP, DEFAULT, MIN, MAX) \
- { OPTION, DEFAULT, MIN, MAX, HELP },
+ { OPTION, DEFAULT, false, MIN, MAX, HELP },
#include "params.def"
#undef DEFPARAM
- { NULL, 0, 0, 0, NULL }
+ { NULL, 0, false, 0, 0, NULL }
};
/* Output files for assembler code (real compiler output)
{
struct file_stack *fs;
+ gcc_assert (!input_file_stack_restored);
+ if (input_file_stack_tick == (int) ((1U << INPUT_FILE_STACK_BITS) - 1))
+ sorry ("GCC supports only %d input file changes", input_file_stack_tick);
+
fs = XNEW (struct file_stack);
fs->location = input_location;
fs->next = input_file_stack;
#endif
input_file_stack = fs;
input_file_stack_tick++;
+ VEC_safe_push (fs_p, heap, input_file_stack_history, input_file_stack);
}
/* Pop the top entry off the stack of presently open source files.
{
struct file_stack *fs;
+ gcc_assert (!input_file_stack_restored);
+ if (input_file_stack_tick == (int) ((1U << INPUT_FILE_STACK_BITS) - 1))
+ sorry ("GCC supports only %d input file changes", input_file_stack_tick);
+
fs = input_file_stack;
input_location = fs->location;
input_file_stack = fs->next;
- free (fs);
input_file_stack_tick++;
+ VEC_safe_push (fs_p, heap, input_file_stack_history, input_file_stack);
+}
+
+/* Restore the input file stack to its state as of TICK, for the sake
+ of diagnostics after processing the whole input. Once this has
+ been called, push_srcloc and pop_srcloc may no longer be
+ called. */
+void
+restore_input_file_stack (int tick)
+{
+ if (tick == 0)
+ input_file_stack = NULL;
+ else
+ input_file_stack = VEC_index (fs_p, input_file_stack_history, tick - 1);
+ input_file_stack_tick = tick;
+ input_file_stack_restored = true;
}
/* Compile an entire translation unit. Write a file of assembly
return;
lang_hooks.decls.final_write_globals ();
+
+ if (errorcount || sorrycount)
+ return;
+
cgraph_varpool_assemble_pending_decls ();
finish_aliases_2 ();
if (flag_mudflap)
mudflap_finish_file ();
+ output_shared_constant_pool ();
+ output_object_blocks ();
+
/* Write out any pending weak symbol declarations. */
weak_finish ();
/* Do dbx symbols. */
timevar_push (TV_SYMOUT);
-#ifdef DWARF2_UNWIND_INFO
+#if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO
if (dwarf2out_do_frame ())
dwarf2out_frame_finish ();
#endif
init_optimization_passes ();
}
+/* Return true if the current target supports -fsection-anchors. */
+
+static bool
+target_supports_section_anchors_p (void)
+{
+ if (targetm.min_anchor_offset == 0 && targetm.max_anchor_offset == 0)
+ return false;
+
+ if (targetm.asm_out.output_anchor == NULL)
+ return false;
+
+ return true;
+}
+
/* Process the options that have been parsed. */
static void
process_options (void)
OVERRIDE_OPTIONS;
#endif
+ if (flag_section_anchors && !target_supports_section_anchors_p ())
+ {
+ warning (OPT_fsection_anchors,
+ "this target does not support %qs", "-fsection-anchors");
+ flag_section_anchors = 0;
+ }
+
if (flag_short_enums == 2)
flag_short_enums = targetm.default_short_enums ();
if (flag_rename_registers == AUTODETECT_VALUE)
flag_rename_registers = flag_unroll_loops || flag_peel_loops;
- /* If explicitly asked to run new loop optimizer, switch off the old
- one. */
- if (flag_loop_optimize2)
- flag_loop_optimize = 0;
-
- /* Enable new loop optimizer pass if any of its optimizations is called. */
- if (flag_move_loop_invariants
- || flag_unswitch_loops
- || flag_peel_loops
- || flag_unroll_loops
- || flag_branch_on_count_reg)
- flag_loop_optimize2 = 1;
-
if (flag_non_call_exceptions)
flag_asynchronous_unwind_tables = 1;
if (flag_asynchronous_unwind_tables)
if (flag_unit_at_a_time && ! lang_hooks.callgraph.expand_function)
flag_unit_at_a_time = 0;
+ if (!flag_unit_at_a_time)
+ flag_section_anchors = 0;
+
if (flag_value_profile_transformations)
flag_profile_values = 1;
}
#ifndef OBJECT_FORMAT_ELF
+#ifndef OBJECT_FORMAT_MACHO
if (flag_function_sections && write_symbols != NO_DEBUG)
warning (0, "-ffunction-sections may affect debugging on some targets");
#endif
+#endif
/* The presence of IEEE signaling NaNs, implies all math can trap. */
if (flag_signaling_nans)
init_regs ();
init_fake_stack_mems ();
init_alias_once ();
- init_loop ();
init_reload ();
init_varasm_once ();
predefined types. */
timevar_push (TV_SYMOUT);
-#ifdef DWARF2_UNWIND_INFO
+#if defined DWARF2_DEBUGGING_INFO || defined DWARF2_UNWIND_INFO
if (dwarf2out_do_frame ())
dwarf2out_frame_init ();
#endif
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