mirrors/binutils-gdb
1
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-24 02:24:46 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

2004-11-10 Randolph Chung <tausq@debian.org>

Browse Source 
* blockframe.c (inside_entry_func): Move to .....
	* frame.c (inside_entry_func): ... here, and make static.
	(backtrace_past_entry): New flag.
	(get_prev_frame): Stop backtrace at the entry function if enabled
	by flag.  Update comments.
	(_initialize_frame): Add command to set backtrace_past_entry flag.
	* defs.h (inside_entry_func): Remove prototype.

    doc/
	* gdb.texinfo: Document set/show backtrace past-entry commands.
	Rearrange index entries for set/show backtrace past-main.
This commit is contained in:
Randolph Chung 2004-11-10 21:17:58 +00:00
parent 917c78fc59
commit 2315ffec02
6 changed files with 54 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
2004-11-10 Randolph Chung <tausq@debian.org>
* blockframe.c (inside_entry_func): Move to .....
* frame.c (inside_entry_func): ... here, and make static.
(backtrace_past_entry): New flag.
(get_prev_frame): Stop backtrace at the entry function if enabled
by flag. Update comments.
(_initialize_frame): Add command to set backtrace_past_entry flag.
* defs.h (inside_entry_func): Remove prototype.
2004-11-10 Mark Kettenis <kettenis@gnu.org>
* dwarf2read.c: Fix formatting.

8
gdb/blockframe.c
View File

@ -43,14 +43,6 @@
void _initialize_blockframe (void);
/* Test whether THIS_FRAME is inside the process entry point function. */
int
inside_entry_func (struct frame_info *this_frame)
{
return (get_frame_func (this_frame) == entry_point_address ());
}
/* Return the innermost lexical block in execution
in a specified stack frame. The frame address is assumed valid.

4
gdb/defs.h
View File

@ -314,10 +314,6 @@ struct symtab;
struct breakpoint;
struct frame_info;
/* From blockframe.c */
extern int inside_entry_func (struct frame_info *this_frame);
/* From utils.c */
extern void initialize_utils (void);

5
gdb/doc/ChangeLog
View File

@ -1,3 +1,8 @@
2004-11-10 Randolph Chung <tausq@debian.org>
* gdb.texinfo: Document set/show backtrace past-entry commands.
Rearrange index entries for set/show backtrace past-main.
2004-11-10 Jon Beniston <jon@beniston.com>
Committed by Andrew Cagney <cagney@gnu.org>.

13
gdb/doc/gdb.texinfo
View File

@ -4120,6 +4120,19 @@ default.
@kindex show backtrace
Display the current user entry point backtrace policy.
@item set backtrace past-entry
@itemx set backtrace past-entry on
Backtraces will continue past the internal entry point of an application.
This entry point is encoded by the linker when the application is built,
and is likely before the user entry point @code{main} (or equivalent) is called.
@item set backtrace past-entry off
Backtraces will stop when they encouter the internal entry point of an
application. This is the default.
@item show backtrace past-entry
Display the current internal entry point backtrace policy.
@item set backtrace limit @var{n}
@itemx set backtrace limit 0
@cindex backtrace limit

35
gdb/frame.c
View File

@ -115,6 +115,7 @@ static int frame_debug;
/* Flag to indicate whether backtraces should stop at main et.al. */
static int backtrace_past_main;
static int backtrace_past_entry;
static unsigned int backtrace_limit = UINT_MAX;
static void
@ -1135,6 +1136,14 @@ inside_main_func (struct frame_info *this_frame)
return maddr == get_frame_func (this_frame);
}
/* Test whether THIS_FRAME is inside the process entry point function. */
static int
inside_entry_func (struct frame_info *this_frame)
{
return (get_frame_func (this_frame) == entry_point_address ());
}
/* Return a structure containing various interesting information about
the frame that called THIS_FRAME. Returns NULL if there is entier
no such frame or the frame fails any of a set of target-independent
@ -1212,8 +1221,6 @@ get_prev_frame (struct frame_info *this_frame)
dummy frame PCs typically land in the entry func. Don't apply
this test to the sentinel frame. Sentinel frames should always
be allowed to unwind. */
/* NOTE: cagney/2003-02-25: Don't enable until someone has found
hard evidence that this is needed. */
/* NOTE: cagney/2003-07-07: Fixed a bug in inside_main_func() -
wasn't checking for "main" in the minimal symbols. With that
fixed asm-source tests now stop in "main" instead of halting the
@ -1226,13 +1233,12 @@ get_prev_frame (struct frame_info *this_frame)
I guess) to determine the address range of the start function.
That should provide a far better stopper than the current
heuristics. */
/* NOTE: cagney/2003-07-15: Need to add a "set backtrace
beyond-entry-func" command so that this can be selectively
disabled. */
if (0
#if 0
&& backtrace_beyond_entry_func
#endif
/* NOTE: tausq/2004-10-09: this is needed if, for example, the compiler
applied tail-call optimizations to main so that a function called
from main returns directly to the caller of main. Since we don't
stop at main, we should at least stop at the entry point of the
application. */
if (!backtrace_past_entry
&& this_frame->unwind->type != DUMMY_FRAME && this_frame->level >= 0
&& inside_entry_func (this_frame))
{
@ -1530,6 +1536,17 @@ Whether backtraces should continue past \"main\" is %s.",
NULL, NULL, &set_backtrace_cmdlist,
&show_backtrace_cmdlist);
add_setshow_boolean_cmd ("past-entry", class_obscure,
&backtrace_past_entry, "\
Set whether backtraces should continue past the entry point of a program.", "\
Show whether backtraces should continue past the entry point of a program.", "\
Normally there are no callers beyond the entry point of a program, so GDB\n\
will terminate the backtrace there. Set this variable if you need to see \n\
the rest of the stack trace.", "\
Whether backtraces should continue past the entry point is %s.",
NULL, NULL, &set_backtrace_cmdlist,
&show_backtrace_cmdlist);
add_setshow_uinteger_cmd ("limit", class_obscure,
&backtrace_limit, "\
Set an upper bound on the number of backtrace levels.", "\