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* [Bug symtab/26054] New: step skipping over recommended breakpoint location
@ 2020-05-27 15:50 vries at gcc dot gnu.org
2020-05-27 18:11 ` [Bug symtab/26054] " ssbssa at sourceware dot org
2021-01-13 12:56 ` yangyibiao at outlook dot com
0 siblings, 2 replies; 3+ messages in thread
From: vries at gcc dot gnu.org @ 2020-05-27 15:50 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=26054
Bug ID: 26054
Summary: step skipping over recommended breakpoint location
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: symtab
Assignee: unassigned at sourceware dot org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
[ spinoff of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95360 ]
Consider test-case:
...
$ cat small.c
unsigned int b,d;
static int c[1][2] = {{0, 1}};
int main() {
for (; d<1; d++)
for (; b<1; b++)
c[b][d+1] = 0;
return 0;
}
...
Compiled like so:
...
$ gcc-10 -O0 -g small.c
...
When stepping through the program, we go straight from line 5 to line 7:
...
Temporary breakpoint 1 at 0x400496: file small.c, line 5.
Starting program: /home/vries/a.out
Temporary breakpoint 1, main () at small.c:5
5 for (; d<1; d++)
(gdb) n
7 c[b][d+1] = 0;
...
If we disable the filtering in dwarf_record_line_p, we have instead:
...
Temporary breakpoint 1 at 0x400496: file small.c, line 5.
Starting program: /home/vries/a.out
Temporary breakpoint 1, main () at small.c:5
5 for (; d<1; d++)
(gdb) n
6 for (; b<1; b++)
(gdb) n
7 c[b][d+1] = 0;
...
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* [Bug symtab/26054] step skipping over recommended breakpoint location
2020-05-27 15:50 [Bug symtab/26054] New: step skipping over recommended breakpoint location vries at gcc dot gnu.org
@ 2020-05-27 18:11 ` ssbssa at sourceware dot org
2021-01-13 12:56 ` yangyibiao at outlook dot com
1 sibling, 0 replies; 3+ messages in thread
From: ssbssa at sourceware dot org @ 2020-05-27 18:11 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=26054
Hannes Domani <ssbssa at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ssbssa at sourceware dot org
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* [Bug symtab/26054] step skipping over recommended breakpoint location
2020-05-27 15:50 [Bug symtab/26054] New: step skipping over recommended breakpoint location vries at gcc dot gnu.org
2020-05-27 18:11 ` [Bug symtab/26054] " ssbssa at sourceware dot org
@ 2021-01-13 12:56 ` yangyibiao at outlook dot com
1 sibling, 0 replies; 3+ messages in thread
From: yangyibiao at outlook dot com @ 2021-01-13 12:56 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=26054
Yibiao Yang <yangyibiao at outlook dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |yangyibiao at outlook dot com
--- Comment #1 from Yibiao Yang <yangyibiao at outlook dot com> ---
*** Bug 26059 has been marked as a duplicate of this bug. ***
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end of thread, other threads:[~2021-01-13 12:56 UTC | newest]
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2020-05-27 15:50 [Bug symtab/26054] New: step skipping over recommended breakpoint location vries at gcc dot gnu.org
2020-05-27 18:11 ` [Bug symtab/26054] " ssbssa at sourceware dot org
2021-01-13 12:56 ` yangyibiao at outlook dot com
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