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Add set/show debug dwarf-line. 

gdb/ChangeLog:

	* NEWS: Mention "set debug dwarf-line".
	* dwarf2read.c (dwarf_line_debug): New static global.
	(add_include_dir): Add debug dwarf-line support.
	(add_file_name, dwarf_record_line, dwarf_finish_line): Ditto.
	(_initialize_dwarf2_read): New parameter "debug dwarf-line".

gdb/doc/ChangeLog:

	* gdb.texinfo (Debugging Output): Mention set/show debug dwarf-line.
This commit is contained in:
Doug Evans 2015-05-27 12:55:19 -07:00
parent 4dcabcc2b5
commit 27e0867f4d
5 changed files with 65 additions and 2 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2015-05-27 Doug Evans <dje@google.com>
* NEWS: Mention "set debug dwarf-line".
* dwarf2read.c (dwarf_line_debug): New static global.
(add_include_dir): Add debug dwarf-line support.
(add_file_name, dwarf_record_line, dwarf_finish_line): Ditto.
(_initialize_dwarf2_read): New parameter "debug dwarf-line".
2015-05-27 Doug Evans <dje@google.com>
* cp-namespace.c (cp_lookup_nested_symbol): New arg "domain".

4
gdb/NEWS
View File

@ -112,6 +112,10 @@ maint set dwarf max-cache-age
maint show dwarf max-cache-age
Renamed from "maint show dwarf2 max-cache-age".
set debug dwarf-line
show debug dwarf-line
Control display of debugging info regarding DWARF line processing.
set max-completions
show max-completions
Set the maximum number of candidates to be considered during

4
gdb/doc/ChangeLog
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@ -1,3 +1,7 @@
2015-05-27 Doug Evans <dje@google.com>
* gdb.texinfo (Debugging Output): Mention set/show debug dwarf-line.
2015-05-26 Doug Evans <dje@google.com>
* gdb.texinfo (Debugging Output): Update for DWARF "set debug"

8
gdb/doc/gdb.texinfo
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@ -23417,6 +23417,14 @@ The value is the number of nesting levels to print.
A value of zero turns off the display.
@item show debug dwarf-die
Show the current state of DWARF DIE debugging.
@item set debug dwarf-line
@cindex DWARF Line Tables
Turns on or off display of debugging messages related to reading
DWARF line tables. The default is 0 (off).
A value of 1 provides basic information.
A value greater than 1 provides more verbose information.
@item show debug dwarf-line
Show the current state of DWARF line table debugging.
@item set debug dwarf-read
@cindex DWARF Reading
Turns on or off display of debugging messages related to reading

43
gdb/dwarf2read.c
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@ -84,6 +84,9 @@ static unsigned int dwarf_read_debug = 0;
/* When non-zero, dump DIEs after they are read in. */
static unsigned int dwarf_die_debug = 0;
/* When non-zero, dump line number entries as they are read in. */
static unsigned int dwarf_line_debug = 0;
/* When non-zero, cross-check physname against demangler. */
static int check_physname = 0;
@ -17152,6 +17155,10 @@ free_line_header_voidp (void *arg)
static void
add_include_dir (struct line_header *lh, const char *include_dir)
{
if (dwarf_line_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "Adding dir %u: %s\n",
lh->num_include_dirs + 1, include_dir);
/* Grow the array if necessary. */
if (lh->include_dirs_size == 0)
{
@ -17181,6 +17188,10 @@ add_file_name (struct line_header *lh,
{
struct file_entry *fe;
if (dwarf_line_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "Adding file %u: %s\n",
lh->num_file_names + 1, name);
/* Grow the array if necessary. */
if (lh->file_names_size == 0)
{
@ -17529,6 +17540,14 @@ dwarf_record_line (struct gdbarch *gdbarch, struct subfile *subfile,
{
CORE_ADDR addr = gdbarch_addr_bits_remove (gdbarch, address);
if (dwarf_line_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Recording line %u, file %s, address %s\n",
line, lbasename (subfile->name),
paddress (gdbarch, address));
}
(*p_record_line) (subfile, line, addr);
}
@ -17541,8 +17560,18 @@ static void
dwarf_finish_line (struct gdbarch *gdbarch, struct subfile *subfile,
CORE_ADDR address, record_line_ftype p_record_line)
{
if (subfile != NULL)
dwarf_record_line (gdbarch, subfile, 0, address, p_record_line);
if (subfile == NULL)
return;
if (dwarf_line_debug)
{
fprintf_unfiltered (gdb_stdlog,
"Finishing current line, file %s, address %s\n",
lbasename (subfile->name),
paddress (gdbarch, address));
}
dwarf_record_line (gdbarch, subfile, 0, address, p_record_line);
}
/* Subroutine of dwarf_decode_lines to simplify it.
@ -23321,6 +23350,16 @@ The value is the maximum depth to print."),
NULL,
&setdebuglist, &showdebuglist);
add_setshow_zuinteger_cmd ("dwarf-line", no_class, &dwarf_line_debug, _("\
Set debugging of the dwarf line reader."), _("\
Show debugging of the dwarf line reader."), _("\
When enabled (non-zero), line number entries are dumped as they are read in.\n\
A value of 1 (one) provides basic information.\n\
A value greater than 1 provides more verbose information."),
NULL,
NULL,
&setdebuglist, &showdebuglist);
add_setshow_boolean_cmd ("check-physname", no_class, &check_physname, _("\
Set cross-checking of \"physname\" code against demangler."), _("\
Show cross-checking of \"physname\" code against demangler."), _("\