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dbxout.c (dbxout_source_line): Add is_stmt parameter.

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* dbxout.c (dbxout_source_line): Add is_stmt parameter.
	Change caller.
	* debug.c (struct gcc_debug_hooks): Change placeholder for
	source_line hook.
	(debug_nothing_int_charstar_int): Replaced by...
	(debug_nothing_int_charstar_int_bool): ...this.
	* debug.h (struct gcc_debug_hooks): Add is_stmt parameter to
	source_line prototype.
	(debug_nothing_int_charstar_int): Replaced by...
	(debug_nothing_int_charstar_int_bool): ...this.
	* defaults.h (SUPPORTS_DISCRIMINATOR): New constant.
	* dwarf2out.c (dwarf2out_source_line): Add is_stmt parameter.
	Output is_stmt operand when necessary.
	* final.c (last_is_stmt): New variable.
	(final_start_function): Initialize last_is_stmt.
	(final_scan_insn): Pass is_stmt to source_line debug hook.
	(notice_source_line): Add is_stmt parameter.
	* sdbout.c (sdbout_source_line): Add is_stmt parameter.
	* vmsdbgout.c (vmsdbgout_source_line): Add is_stmt parameter.
	Change callers.
	* xcoffout.c (xcoffout_source_line): Add is_stmt parameter.
	* xcoffout.h (xcoffout_source_line): Add is_stmt parameter.

From-SVN: r148635
This commit is contained in:
Cary Coutant 2009-06-17 23:54:40 +00:00 committed by Cary Coutant
parent b0f43ca013
commit ed5ef2e408
11 changed files with 97 additions and 36 deletions
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25
gcc/ChangeLog
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@ -1,3 +1,28 @@
2009-06-17 Cary Coutant <ccoutant@google.com>
* dbxout.c (dbxout_source_line): Add is_stmt parameter.
Change caller.
* debug.c (struct gcc_debug_hooks): Change placeholder for
source_line hook.
(debug_nothing_int_charstar_int): Replaced by...
(debug_nothing_int_charstar_int_bool): ...this.
* debug.h (struct gcc_debug_hooks): Add is_stmt parameter to
source_line prototype.
(debug_nothing_int_charstar_int): Replaced by...
(debug_nothing_int_charstar_int_bool): ...this.
* defaults.h (SUPPORTS_DISCRIMINATOR): New constant.
* dwarf2out.c (dwarf2out_source_line): Add is_stmt parameter.
Output is_stmt operand when necessary.
* final.c (last_is_stmt): New variable.
(final_start_function): Initialize last_is_stmt.
(final_scan_insn): Pass is_stmt to source_line debug hook.
(notice_source_line): Add is_stmt parameter.
* sdbout.c (sdbout_source_line): Add is_stmt parameter.
* vmsdbgout.c (vmsdbgout_source_line): Add is_stmt parameter.
Change callers.
* xcoffout.c (xcoffout_source_line): Add is_stmt parameter.
* xcoffout.h (xcoffout_source_line): Add is_stmt parameter.
2009-06-17 Ian Lance Taylor <iant@google.com>
* expr.c (struct move_by_pieces_d): Rename from move_by_pieces.

7
gcc/dbxout.c
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@ -333,7 +333,7 @@ static void dbxout_handle_pch (unsigned);
/* The debug hooks structure. */
#if defined (DBX_DEBUGGING_INFO)
static void dbxout_source_line (unsigned int, const char *, int);
static void dbxout_source_line (unsigned int, const char *, int, bool);
static void dbxout_begin_prologue (unsigned int, const char *);
static void dbxout_source_file (const char *);
static void dbxout_function_end (tree);
@ -1265,7 +1265,7 @@ dbxout_begin_prologue (unsigned int lineno, const char *filename)
/* pre-increment the scope counter */
scope_labelno++;
dbxout_source_line (lineno, filename, 0);
dbxout_source_line (lineno, filename, 0, true);
/* Output function begin block at function scope, referenced
by dbxout_block, dbxout_source_line and dbxout_function_end. */
emit_pending_bincls_if_required ();
@ -1277,7 +1277,8 @@ dbxout_begin_prologue (unsigned int lineno, const char *filename)
static void
dbxout_source_line (unsigned int lineno, const char *filename,
int discriminator ATTRIBUTE_UNUSED)
int discriminator ATTRIBUTE_UNUSED,
bool is_stmt ATTRIBUTE_UNUSED)
{
dbxout_source_file (filename);

9
gcc/debug.c
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@ -34,7 +34,7 @@ const struct gcc_debug_hooks do_nothing_debug_hooks =
debug_nothing_int_int, /* begin_block */
debug_nothing_int_int, /* end_block */
debug_true_const_tree, /* ignore_block */
debug_nothing_int_charstar_int, /* source_line */
debug_nothing_int_charstar_int_bool, /* source_line */
debug_nothing_int_charstar, /* begin_prologue */
debug_nothing_int_charstar, /* end_prologue */
debug_nothing_int_charstar, /* end_epilogue */
@ -104,9 +104,10 @@ debug_nothing_int_charstar (unsigned int line ATTRIBUTE_UNUSED,
}
void
debug_nothing_int_charstar_int (unsigned int line ATTRIBUTE_UNUSED,
const char *text ATTRIBUTE_UNUSED,
int discriminator ATTRIBUTE_UNUSED)
debug_nothing_int_charstar_int_bool (unsigned int line ATTRIBUTE_UNUSED,
const char *text ATTRIBUTE_UNUSED,
int discriminator ATTRIBUTE_UNUSED,
bool is_stmt ATTRIBUTE_UNUSED)
{
}

8
gcc/debug.h
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@ -61,11 +61,10 @@ struct gcc_debug_hooks
/* Record a source file location at (FILE, LINE, DISCRIMINATOR). */
void (* source_line) (unsigned int line, const char *file,
int discriminator);
int discriminator, bool is_stmt);
/* 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. */
function. */
void (* begin_prologue) (unsigned int line, const char *file);
/* Called at end of prologue code. LINE is the first line in the
@ -142,7 +141,8 @@ extern const struct gcc_debug_hooks *debug_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_charstar_int (unsigned int, const char *, int);
extern void debug_nothing_int_charstar_int_bool (unsigned int, const char *,
int, bool);
extern void debug_nothing_int (unsigned int);
extern void debug_nothing_int_int (unsigned int, unsigned int);
extern void debug_nothing_tree (tree);

10
gcc/defaults.h
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@ -255,6 +255,16 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#endif
#endif
/* This determines whether or not we support the discriminator
attribute in the .loc directive. */
#ifndef SUPPORTS_DISCRIMINATOR
#ifdef HAVE_GAS_DISCRIMINATOR
#define SUPPORTS_DISCRIMINATOR 1
#else
#define SUPPORTS_DISCRIMINATOR 0
#endif
#endif
/* This determines whether or not we support link-once semantics. */
#ifndef SUPPORTS_ONE_ONLY
#ifdef MAKE_DECL_ONE_ONLY

17
gcc/dwarf2out.c
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@ -91,7 +91,7 @@ along with GCC; see the file COPYING3. If not see
#include "input.h"
#ifdef DWARF2_DEBUGGING_INFO
static void dwarf2out_source_line (unsigned int, const char *, int);
static void dwarf2out_source_line (unsigned int, const char *, int, bool);
static rtx last_var_location_insn;
#endif
@ -3637,7 +3637,7 @@ dwarf2out_begin_prologue (unsigned int line ATTRIBUTE_UNUSED,
prologue case, not the eh frame case. */
#ifdef DWARF2_DEBUGGING_INFO
if (file)
dwarf2out_source_line (line, file, 0);
dwarf2out_source_line (line, file, 0, true);
#endif
if (dwarf2out_do_cfi_asm ())
@ -16283,8 +16283,10 @@ dwarf2out_begin_function (tree fun)
static void
dwarf2out_source_line (unsigned int line, const char *filename,
int discriminator ATTRIBUTE_UNUSED)
int discriminator, bool is_stmt)
{
static bool last_is_stmt = true;
if (debug_info_level >= DINFO_LEVEL_NORMAL
&& line != 0)
{
@ -16301,10 +16303,13 @@ dwarf2out_source_line (unsigned int line, const char *filename,
{
/* Emit the .loc directive understood by GNU as. */
fprintf (asm_out_file, "\t.loc %d %d 0", file_num, line);
#ifdef HAVE_GAS_DISCRIMINATOR
if (discriminator != 0)
if (is_stmt != last_is_stmt)
{
fprintf (asm_out_file, " is_stmt %d", is_stmt ? 1 : 0);
last_is_stmt = is_stmt;
}
if (SUPPORTS_DISCRIMINATOR && discriminator != 0)
fprintf (asm_out_file, " discriminator %d", discriminator);
#endif /* HAVE_GAS_DISCRIMINATOR */
fputc ('\n', asm_out_file);
/* Indicate that line number info exists. */

37
gcc/final.c
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@ -213,7 +213,7 @@ static int asm_insn_count (rtx);
#endif
static void profile_function (FILE *);
static void profile_after_prologue (FILE *);
static bool notice_source_line (rtx);
static bool notice_source_line (rtx, bool *);
static rtx walk_alter_subreg (rtx *, bool *);
static void output_asm_name (void);
static void output_alternate_entry_point (FILE *, rtx);
@ -2089,6 +2089,7 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
rtx body = PATTERN (insn);
int insn_code_number;
const char *templ;
bool is_stmt;
#ifdef HAVE_conditional_execution
/* Reset this early so it is correct for ASM statements. */
@ -2190,11 +2191,12 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
}
/* Output this line note if it is the first or the last line
note in a row. */
if (notice_source_line (insn))
if (notice_source_line (insn, &is_stmt))
{
(*debug_hooks->source_line) (last_linenum,
last_filename,
last_discriminator);
last_discriminator,
is_stmt);
}
if (GET_CODE (body) == ASM_INPUT)
@ -2698,10 +2700,12 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
return NEXT_INSN (insn);
}
/* Return whether a source line note needs to be emitted before INSN. */
/* Return whether a source line note needs to be emitted before INSN.
Sets IS_STMT to TRUE if the line should be marked as a possible
breakpoint location. */
static bool
notice_source_line (rtx insn)
notice_source_line (rtx insn, bool *is_stmt)
{
const char *filename;
int linenum;
@ -2717,20 +2721,33 @@ notice_source_line (rtx insn)
linenum = insn_line (insn);
}
if (filename
&& (force_source_line
|| filename != last_filename
|| last_linenum != linenum
|| last_discriminator != discriminator))
if (filename == NULL)
return false;
if (force_source_line
|| filename != last_filename
|| last_linenum != linenum)
{
force_source_line = false;
last_filename = filename;
last_linenum = linenum;
last_discriminator = discriminator;
*is_stmt = true;
high_block_linenum = MAX (last_linenum, high_block_linenum);
high_function_linenum = MAX (last_linenum, high_function_linenum);
return true;
}
if (SUPPORTS_DISCRIMINATOR && last_discriminator != discriminator)
{
/* If the discriminator changed, but the line number did not,
output the line table entry with is_stmt false so the
debugger does not treat this as a breakpoint location. */
last_discriminator = discriminator;
*is_stmt = false;
return true;
}
return false;
}

5
gcc/sdbout.c
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@ -117,7 +117,7 @@ static void sdbout_start_source_file (unsigned int, const char *);
static void sdbout_end_source_file (unsigned int);
static void sdbout_begin_block (unsigned int, unsigned int);
static void sdbout_end_block (unsigned int, unsigned int);
static void sdbout_source_line (unsigned int, const char *, int);
static void sdbout_source_line (unsigned int, const char *, int, bool);
static void sdbout_end_epilogue (unsigned int, const char *);
static void sdbout_global_decl (tree);
#ifndef MIPS_DEBUGGING_INFO
@ -1542,7 +1542,8 @@ sdbout_end_block (unsigned int line, unsigned int n ATTRIBUTE_UNUSED)
static void
sdbout_source_line (unsigned int line, const char *filename ATTRIBUTE_UNUSED,
int discriminator ATTRIBUTE_UNUSED)
int discriminator ATTRIBUTE_UNUSED,
bool is_stmt ATTRIBUTE_UNUSED)
{
/* COFF relative line numbers must be positive. */
if ((int) line > sdb_begin_function_line)

10
gcc/vmsdbgout.c
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@ -173,7 +173,7 @@ static void vmsdbgout_end_source_file (unsigned int);
static void vmsdbgout_begin_block (unsigned int, unsigned int);
static void vmsdbgout_end_block (unsigned int, unsigned int);
static bool vmsdbgout_ignore_block (const_tree);
static void vmsdbgout_source_line (unsigned int, const char *, int);
static void vmsdbgout_source_line (unsigned int, const char *, int, bool);
static void vmsdbgout_begin_prologue (unsigned int, const char *);
static void vmsdbgout_end_prologue (unsigned int, const char *);
static void vmsdbgout_end_function (unsigned int);
@ -1297,7 +1297,7 @@ vmsdbgout_end_prologue (unsigned int line, const char *file)
ASM_OUTPUT_LABEL (asm_out_file, label);
/* VMS PCA expects every PC range to correlate to some line and file. */
vmsdbgout_source_line (line, file, 0);
vmsdbgout_source_line (line, file, 0, true);
}
}
@ -1331,7 +1331,7 @@ vmsdbgout_end_epilogue (unsigned int line, const char *file)
ASM_OUTPUT_LABEL (asm_out_file, label);
/* VMS PCA expects every PC range to correlate to some line and file. */
vmsdbgout_source_line (line, file, 0);
vmsdbgout_source_line (line, file, 0, true);
}
}
@ -1534,10 +1534,10 @@ lookup_filename (const char *file_name)
static void
vmsdbgout_source_line (register unsigned line, register const char *filename,
int discriminator)
int discriminator, bool is_stmt)
{
if (write_symbols == VMS_AND_DWARF2_DEBUG)
(*dwarf2_debug_hooks.source_line) (line, filename, discriminator);
(*dwarf2_debug_hooks.source_line) (line, filename, discriminator, is_stmt);
if (debug_info_level >= DINFO_LEVEL_TERSE)
{

3
gcc/xcoffout.c
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@ -322,7 +322,8 @@ xcoffout_source_file (FILE *file, const char *filename, int inline_p)
void
xcoffout_source_line (unsigned int line, const char *filename,
int discriminator ATTRIBUTE_UNUSED)
int discriminator ATTRIBUTE_UNUSED,
bool is_stmt ATTRIBUTE_UNUSED)
{
bool inline_p = (strcmp (xcoff_current_function_file, filename) != 0
|| (int) line < xcoff_begin_function_line);

2
gcc/xcoffout.h
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@ -182,4 +182,4 @@ extern void xcoffout_end_function (unsigned int);
extern void xcoffout_end_block (unsigned, unsigned);
extern int xcoff_assign_fundamental_type_number (tree);
extern void xcoffout_declare_function (FILE *, tree, const char *);
extern void xcoffout_source_line (unsigned int, const char *, int);
extern void xcoffout_source_line (unsigned int, const char *, int, bool);