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authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.2.1/gcc/debug.h
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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Check in gcc sources for prebuilt toolchains in Eclair.
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+/* Debug hooks for GCC.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef GCC_DEBUG_H
+#define GCC_DEBUG_H
+
+/* This structure contains hooks for the debug information output
+ functions, accessed through the global instance debug_hooks set in
+ toplev.c according to command line options. */
+struct gcc_debug_hooks
+{
+ /* Initialize debug output. MAIN_FILENAME is the name of the main
+ input file. */
+ void (* init) (const char *main_filename);
+
+ /* Output debug symbols. */
+ void (* finish) (const char *main_filename);
+
+ /* Macro defined on line LINE with name and expansion TEXT. */
+ void (* define) (unsigned int line, const char *text);
+
+ /* MACRO undefined on line LINE. */
+ void (* undef) (unsigned int line, const char *macro);
+
+ /* Record the beginning of a new source file FILE from LINE number
+ in the previous one. */
+ void (* start_source_file) (unsigned int line, const char *file);
+
+ /* Record the resumption of a source file. LINE is the line number
+ in the source file we are returning to. */
+ void (* end_source_file) (unsigned int line);
+
+ /* Record the beginning of block N, counting from 1 and not
+ including the function-scope block, at LINE. */
+ void (* begin_block) (unsigned int line, unsigned int n);
+
+ /* Record the end of a block. Arguments as for begin_block. */
+ void (* end_block) (unsigned int line, unsigned int n);
+
+ /* Returns nonzero if it is appropriate not to emit any debugging
+ information for BLOCK, because it doesn't contain any
+ instructions. This may not be the case for blocks containing
+ nested functions, since we may actually call such a function even
+ though the BLOCK information is messed up. Defaults to true. */
+ bool (* ignore_block) (tree);
+
+ /* Record a source file location at (FILE, LINE). */
+ void (* source_line) (unsigned int line, const char *file);
+
+ /* Called at start of prologue code. LINE is the first line in the
+ function. This has been given the same prototype as source_line,
+ so that the source_line hook can be substituted if appropriate. */
+ void (* begin_prologue) (unsigned int line, const char *file);
+
+ /* Called at end of prologue code. LINE is the first line in the
+ function. */
+ void (* end_prologue) (unsigned int line, const char *file);
+
+ /* Record end of epilogue code. */
+ void (* end_epilogue) (unsigned int line, const char *file);
+
+ /* Called at start of function DECL, before it is declared. */
+ void (* begin_function) (tree decl);
+
+ /* Record end of function. LINE is highest line number in function. */
+ void (* end_function) (unsigned int line);
+
+ /* Debug information for a function DECL. This might include the
+ function name (a symbol), its parameters, and the block that
+ makes up the function's body, and the local variables of the
+ function. */
+ void (* function_decl) (tree decl);
+
+ /* Debug information for a global DECL. Called from toplev.c after
+ compilation proper has finished. */
+ void (* global_decl) (tree decl);
+
+ /* Debug information for a type DECL. Called from toplev.c after
+ compilation proper, also from various language front ends to
+ record built-in types. The second argument is properly a
+ boolean, which indicates whether or not the type is a "local"
+ type as determined by the language. (It's not a boolean for
+ legacy reasons.) */
+ void (* type_decl) (tree decl, int local);
+
+ /* Debug information for imported modules and declarations. */
+ void (* imported_module_or_decl) (tree decl, tree context);
+
+ /* DECL is an inline function, whose body is present, but which is
+ not being output at this point. */
+ void (* deferred_inline_function) (tree decl);
+
+ /* DECL is an inline function which is about to be emitted out of
+ line. The hook is useful to, e.g., emit abstract debug info for
+ the inline before it gets mangled by optimization. */
+ void (* outlining_inline_function) (tree decl);
+
+ /* Called from final_scan_insn for any CODE_LABEL insn whose
+ LABEL_NAME is non-null. */
+ void (* label) (rtx);
+
+ /* Called after the start and before the end of writing a PCH file.
+ The parameter is 0 if after the start, 1 if before the end. */
+ void (* handle_pch) (unsigned int);
+
+ /* Called from final_scan_insn for any NOTE_INSN_VAR_LOCATION note. */
+ void (* var_location) (rtx);
+
+ /* Called from final_scan_insn if there is a switch between hot and cold
+ text sections. */
+ void (* switch_text_section) (void);
+
+ /* This is 1 if the debug writer wants to see start and end commands for the
+ main source files, and 0 otherwise. */
+ int start_end_main_source_file;
+};
+
+extern const struct gcc_debug_hooks *debug_hooks;
+
+/* The do-nothing hooks. */
+extern void debug_nothing_void (void);
+extern void debug_nothing_charstar (const char *);
+extern void debug_nothing_int_charstar (unsigned int, const char *);
+extern void debug_nothing_int (unsigned int);
+extern void debug_nothing_int_int (unsigned int, unsigned int);
+extern void debug_nothing_tree (tree);
+extern void debug_nothing_tree_int (tree, int);
+extern void debug_nothing_tree_tree (tree, tree);
+extern bool debug_true_tree (tree);
+extern void debug_nothing_rtx (rtx);
+
+/* Hooks for various debug formats. */
+extern const struct gcc_debug_hooks do_nothing_debug_hooks;
+extern const struct gcc_debug_hooks dbx_debug_hooks;
+extern const struct gcc_debug_hooks sdb_debug_hooks;
+extern const struct gcc_debug_hooks xcoff_debug_hooks;
+extern const struct gcc_debug_hooks dwarf2_debug_hooks;
+extern const struct gcc_debug_hooks vmsdbg_debug_hooks;
+
+/* Dwarf2 frame information. */
+
+extern void dwarf2out_begin_prologue (unsigned int, const char *);
+extern void dwarf2out_end_epilogue (unsigned int, const char *);
+extern void dwarf2out_frame_init (void);
+extern void dwarf2out_frame_finish (void);
+/* Decide whether we want to emit frame unwind information for the current
+ translation unit. */
+extern int dwarf2out_do_frame (void);
+
+extern void debug_flush_symbol_queue (void);
+extern void debug_queue_symbol (tree);
+extern void debug_free_queue (void);
+extern int debug_nesting;
+extern int symbol_queue_index;
+
+#endif /* !GCC_DEBUG_H */