* [PATCH] Fix PR breakpoints/16494: gdb.base/dprintf.exp agent-printf failures with non-Z0-supporting gdbservers
@ 2014-03-11 14:32 Hui Zhu
2014-03-21 13:11 ` Pedro Alves
0 siblings, 1 reply; 5+ messages in thread
From: Hui Zhu @ 2014-03-11 14:32 UTC (permalink / raw)
To: gdb-patches ml; +Cc: Pedro Alves
After the patch that commited by Pedro, the GDB can throw error about
gdbserver doesn't support agent commands.
But the test still get this error because the it doesn't try handle the
error when send dprintf to gdbserver.
So I make this patch.
It test OK and pass regression test in x86_64-linux and powerpc-linux.
Thanks,
Hui
2014-03-11 Hui Zhu <hui@codesourcery.com>
PR breakpoints/16494
* gdb.base/dprintf.exp: Add second check to make sure current
target support breakpoints that have target side commands.
* gdb.base/mi-dprintf.exp: Ditto.
* lib/mi-support.exp (mi_run_cmd_full): Add handle for error.
--- a/gdb/testsuite/gdb.base/dprintf.exp
+++ b/gdb/testsuite/gdb.base/dprintf.exp
@@ -109,6 +109,24 @@ gdb_test_multiple "set dprintf-style age
}
if $target_can_dprintf {
+ # Second check to make sure current target support breakpoints that have target side commands
+ gdb_run_cmd
+
+ gdb_test "" "Breakpoint"
+
+ set msg "Send dprintf to target"
+ gdb_test_multiple "continue" $msg {
+ -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
+ set target_can_dprintf 0
+ pass "$msg - cannot do"
+ }
+ -re ".*$gdb_prompt $" {
+ pass "$msg - can do"
+ }
+ }
+}
+
+if $target_can_dprintf {
gdb_run_cmd
gdb_test "" "Breakpoint"
@@ -120,7 +138,7 @@ if $target_can_dprintf {
gdb_test_sequence "info breakpoints" "dprintf info 2" {
"\[\r\n\]Num Type Disp Enb Address +What"
"\[\r\n\]2 breakpoint"
- "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\]\tbreakpoint already hit 3 times"
"\[\r\n\]3 dprintf"
"\[\r\n\]\tbreakpoint already hit 2 times"
"\[\r\n\] agent-printf \"At foo entry\\\\n\""
--- a/gdb/testsuite/gdb.mi/mi-dprintf.exp
+++ b/gdb/testsuite/gdb.mi/mi-dprintf.exp
@@ -140,6 +140,14 @@ gdb_expect {
}
if $target_can_dprintf {
+ # Second check to make sure current target support breakpoints that have target side commands
+ if {[mi_run_cmd] < 0} {
+ set target_can_dprintf 0
+ unsupported "send dprintf to target"
+ }
+}
+
+if $target_can_dprintf {
mi_run_cmd
mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -893,6 +893,7 @@ proc mi_run_cmd_full {use_mi_command arg
send_gdb "${run_prefix}continue\n"
gdb_expect 60 {
-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+ -re "${run_match}\\^error.*" {return -1}
default {}
}
return 0
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] Fix PR breakpoints/16494: gdb.base/dprintf.exp agent-printf failures with non-Z0-supporting gdbservers
2014-03-11 14:32 [PATCH] Fix PR breakpoints/16494: gdb.base/dprintf.exp agent-printf failures with non-Z0-supporting gdbservers Hui Zhu
@ 2014-03-21 13:11 ` Pedro Alves
2014-03-23 11:36 ` Hui Zhu
0 siblings, 1 reply; 5+ messages in thread
From: Pedro Alves @ 2014-03-21 13:11 UTC (permalink / raw)
To: Hui Zhu; +Cc: gdb-patches ml
On 03/11/2014 02:32 PM, Hui Zhu wrote:
> --- a/gdb/testsuite/gdb.base/dprintf.exp
> +++ b/gdb/testsuite/gdb.base/dprintf.exp
> @@ -109,6 +109,24 @@ gdb_test_multiple "set dprintf-style age
> }
>
> if $target_can_dprintf {
> + # Second check to make sure current target support breakpoints that have target side commands
Line too long. "make sure THE current target supportS". Period at end of sentence.
> + gdb_run_cmd
> +
> + gdb_test "" "Breakpoint"
> +
> + set msg "Send dprintf to target"
> + gdb_test_multiple "continue" $msg {
> + -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
> + set target_can_dprintf 0
> + pass "$msg - cannot do"
> + }
> + -re ".*$gdb_prompt $" {
> + pass "$msg - can do"
> + }
> + }
Why not simply merge this check with the existing code just
below, that does pretty much the same thing?
if $target_can_dprintf {
gdb_run_cmd
...
> if $target_can_dprintf {
> + # Second check to make sure current target support breakpoints that have target side commands
> + if {[mi_run_cmd] < 0} {
> + set target_can_dprintf 0
> + unsupported "send dprintf to target"
> + }
> +}
> +
> +if $target_can_dprintf {
> mi_run_cmd
Likewise.
--
Pedro Alves
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] Fix PR breakpoints/16494: gdb.base/dprintf.exp agent-printf failures with non-Z0-supporting gdbservers
2014-03-21 13:11 ` Pedro Alves
@ 2014-03-23 11:36 ` Hui Zhu
2014-03-24 19:39 ` Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf, " Pedro Alves
0 siblings, 1 reply; 5+ messages in thread
From: Hui Zhu @ 2014-03-23 11:36 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches ml
On 03/21/14 21:11, Pedro Alves wrote:
Thanks for your review.
> On 03/11/2014 02:32 PM, Hui Zhu wrote:
>> --- a/gdb/testsuite/gdb.base/dprintf.exp
>> +++ b/gdb/testsuite/gdb.base/dprintf.exp
>> @@ -109,6 +109,24 @@ gdb_test_multiple "set dprintf-style age
>> }
>>
>> if $target_can_dprintf {
>> + # Second check to make sure current target support breakpoints that have target side commands
>
> Line too long. "make sure THE current target supportS". Period at end of sentence.
Update this part to:
# Make sure the current target support target side commands.
Update mi-dprintf.exp to:
# Make sure the current target support target side commands.
>
>> + gdb_run_cmd
>> +
>> + gdb_test "" "Breakpoint"
>> +
>> + set msg "Send dprintf to target"
>> + gdb_test_multiple "continue" $msg {
>> + -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
>> + set target_can_dprintf 0
>> + pass "$msg - cannot do"
>> + }
>> + -re ".*$gdb_prompt $" {
>> + pass "$msg - can do"
>> + }
>> + }
>
> Why not simply merge this check with the existing code just
> below, that does pretty much the same thing?
>
> if $target_can_dprintf {
> gdb_run_cmd
> ...
>
Update this part to:
set msg "Send dprintf to target"
gdb_test_multiple "continue" $msg {
-re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
set target_can_dprintf 0
pass "$msg - cannot do"
}
-re "Breakpoint \[0-9\]+, foo .*" {
pass "1st dprintf, agent"
}
}
if $target_can_dprintf {
gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf, agent"
gdb_test_sequence "info breakpoints" "dprintf info 2" {
"\[\r\n\]Num Type Disp Enb Address +What"
"\[\r\n\]2 breakpoint"
"\[\r\n\]\tbreakpoint already hit 2 times"
"\[\r\n\]3 dprintf"
"\[\r\n\]\tbreakpoint already hit 2 times"
"\[\r\n\] agent-printf \"At foo entry\\\\n\""
"\[\r\n\]4 dprintf"
"\[\r\n\]\tbreakpoint already hit 2 times"
"\[\r\n\] agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
}
}
Update mi-dprintf.exp to:
if $target_can_dprintf {
# Make sure the current target support target side commands.
if {[mi_run_cmd] < 0} {
set target_can_dprintf 0
unsupported "send dprintf to target"
}
if $target_can_dprintf {
mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
mi_send_resuming_command "exec-continue" "mi 1st dprintf continue, agent"
mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 1st dprintf, agent"
mi_send_resuming_command "exec-continue" "mi 2nd dprintf continue, agent"
# The =breakpoint-modified text is a part of the "-exec-continue" output.
set msg "mi info dprintf second time"
gdb_expect {
-re "=breakpoint-modified," {
pass $msg
}
-re ".*$mi_gdb_prompt$" {
fail "$msg"
}
timeout {
fail "$msg"
}
}
mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 2nd dprintf, agent"
}
}
>
>
>> if $target_can_dprintf {
>> + # Second check to make sure current target support breakpoints that have target side commands
>> + if {[mi_run_cmd] < 0} {
>> + set target_can_dprintf 0
>> + unsupported "send dprintf to target"
>> + }
>> +}
>> +
>> +if $target_can_dprintf {
>> mi_run_cmd
>
> Likewise.
>
Post new version. Please help me review it.
Best.
Hui
2014-03-23 Hui Zhu <hui@codesourcery.com>
PR breakpoints/16494
* gdb.base/dprintf.exp: Add second check to make sure current
target support breakpoints that have target side commands.
* gdb.base/mi-dprintf.exp: Ditto.
* lib/mi-support.exp (mi_run_cmd_full): Add handle for error.
--- a/gdb/testsuite/gdb.base/dprintf.exp
+++ b/gdb/testsuite/gdb.base/dprintf.exp
@@ -109,24 +109,36 @@ gdb_test_multiple "set dprintf-style age
}
if $target_can_dprintf {
+ # Make sure the current target support target side commands.
gdb_run_cmd
gdb_test "" "Breakpoint"
- gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "1st dprintf, agent"
+ set msg "Send dprintf to target"
+ gdb_test_multiple "continue" $msg {
+ -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
+ set target_can_dprintf 0
+ pass "$msg - cannot do"
+ }
+ -re "Breakpoint \[0-9\]+, foo .*" {
+ pass "1st dprintf, agent"
+ }
+ }
- gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf, agent"
+ if $target_can_dprintf {
+ gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf, agent"
- gdb_test_sequence "info breakpoints" "dprintf info 2" {
- "\[\r\n\]Num Type Disp Enb Address +What"
- "\[\r\n\]2 breakpoint"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\]3 dprintf"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\] agent-printf \"At foo entry\\\\n\""
- "\[\r\n\]4 dprintf"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\] agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
+ gdb_test_sequence "info breakpoints" "dprintf info 2" {
+ "\[\r\n\]Num Type Disp Enb Address +What"
+ "\[\r\n\]2 breakpoint"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\]3 dprintf"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\] agent-printf \"At foo entry\\\\n\""
+ "\[\r\n\]4 dprintf"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\] agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
+ }
}
}
--- a/gdb/testsuite/gdb.mi/mi-dprintf.exp
+++ b/gdb/testsuite/gdb.mi/mi-dprintf.exp
@@ -140,30 +140,36 @@ gdb_expect {
}
if $target_can_dprintf {
- mi_run_cmd
+ # Make sure the current target support target side commands.
+ if {[mi_run_cmd] < 0} {
+ set target_can_dprintf 0
+ unsupported "send dprintf to target"
+ }
- mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
+ if $target_can_dprintf {
+ mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
- mi_send_resuming_command "exec-continue" "mi 1st dprintf continue, agent"
- mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 1st dprintf, agent"
+ mi_send_resuming_command "exec-continue" "mi 1st dprintf continue, agent"
+ mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 1st dprintf, agent"
- mi_send_resuming_command "exec-continue" "mi 2nd dprintf continue, agent"
+ mi_send_resuming_command "exec-continue" "mi 2nd dprintf continue, agent"
- # The =breakpoint-modified text is a part of the "-exec-continue" output.
- set msg "mi info dprintf second time"
- gdb_expect {
- -re "=breakpoint-modified," {
- pass $msg
- }
- -re ".*$mi_gdb_prompt$" {
- fail "$msg"
- }
- timeout {
- fail "$msg"
+ # The =breakpoint-modified text is a part of the "-exec-continue" output.
+ set msg "mi info dprintf second time"
+ gdb_expect {
+ -re "=breakpoint-modified," {
+ pass $msg
+ }
+ -re ".*$mi_gdb_prompt$" {
+ fail "$msg"
+ }
+ timeout {
+ fail "$msg"
+ }
}
- }
- mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 2nd dprintf, agent"
+ mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 2nd dprintf, agent"
+ }
}
mi_gdb_test "set dprintf-style foobar" ".*error.*" "mi set dprintf style to an unrecognized type"
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -843,6 +843,7 @@ proc mi_run_cmd_full {use_mi_command arg
send_gdb "${run_prefix}continue\n"
gdb_expect 60 {
-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+ -re "${run_match}\\^error.*" {return -1}
default {}
}
return 0
^ permalink raw reply [flat|nested] 5+ messages in thread
* Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf, failures with non-Z0-supporting gdbservers
2014-03-23 11:36 ` Hui Zhu
@ 2014-03-24 19:39 ` Pedro Alves
2014-03-25 8:27 ` Hui Zhu
0 siblings, 1 reply; 5+ messages in thread
From: Pedro Alves @ 2014-03-24 19:39 UTC (permalink / raw)
To: Hui Zhu; +Cc: gdb-patches ml
AFAICT, this is actually PR16101, not PR16494. Adjusting subject.
On 03/23/2014 11:35 AM, Hui Zhu wrote:
> On 03/21/14 21:11, Pedro Alves wrote:
>>> if $target_can_dprintf {
>>> + # Second check to make sure current target support breakpoints that have target side commands
>>
>> Line too long. "make sure THE current target supportS". Period at end of sentence.
>
> Update this part to:
> # Make sure the current target support target side commands.
>
> Update mi-dprintf.exp to:
> # Make sure the current target support target side commands.
Missed the S in "supports".
> 2014-03-23 Hui Zhu <hui@codesourcery.com>
>
> PR breakpoints/16494
PR16101 here.
> - gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "1st dprintf, agent"
> + set msg "Send dprintf to target"
> + gdb_test_multiple "continue" $msg {
> + -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
> + set target_can_dprintf 0
> + pass "$msg - cannot do"
> + }
> + -re "Breakpoint \[0-9\]+, foo .*" {
This should expect "$gdb_prompt $", otherwise you'll get racy FAILs.
I got those when I tried this out.
> + pass "1st dprintf, agent"
I think it'd best to use "untested" instead of tweaking
the pass/fail message.
> --- a/gdb/testsuite/lib/mi-support.exp
> +++ b/gdb/testsuite/lib/mi-support.exp
> @@ -843,6 +843,7 @@ proc mi_run_cmd_full {use_mi_command arg
> send_gdb "${run_prefix}continue\n"
> gdb_expect 60 {
> -re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
> + -re "${run_match}\\^error.*" {return -1}
Likewise, this should expect "$gdb_prompt $", otherwise you'll
get racy FAILs.
I've fixed these issues, extended the comments, extended the
commit log, adjusted the ChangeLog entry, and pushed it in,
as below.
Thanks.
---------------
From: Hui Zhu <hui@codesourcery.com>
Subject: [PATCH] Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf
failures with non-Z0-supporting gdbservers
After a previous patch that was committed by Pedro (0000e5cc), trying
to set a dprintf with with a GDBserver that doesn't support agent
commands at all now throws an error. But the dprintf tests still fail
with some GDBserver targets because they doesn't try to handle the
case of the server reporting support for breakpoint commands, but not
be able to use those in combination with Z0 (because Z0 isn't actually
supported, for example):
FAIL: gdb.base/dprintf.exp: 1st dprintf, agent
FAIL: gdb.base/dprintf.exp: 2nd dprintf, agent
FAIL: gdb.base/dprintf.exp: dprintf info 2 (pattern 4)
Similarly for the MI test.
This patch makes the tests handle this scenario.
Tested with native, and native gdbserver on x86_64 Fedora 17.
Also tested with the native-gdbserver.exp board hacked with:
set GDBFLAGS "${GDBFLAGS} -ex \"set remote breakpoint-commands off\""
(actually, "set remote breakpoint-commands off" is presently broken,
so this was on top of a fix for that command.)
which results in:
(gdb) PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
set dprintf-style agent
warning: Target cannot run dprintf commands, falling back to GDB printf
warning: Target cannot run dprintf commands, falling back to GDB printf
(gdb) UNSUPPORTED: gdb.base/dprintf.exp: set dprintf style to agent
gdb.sum:
Running target native-gdbserver
Running ../../../src/gdb/testsuite/gdb.base/dprintf.exp ...
PASS: gdb.base/dprintf.exp: dprintf
PASS: gdb.base/dprintf.exp: dprintf foo
PASS: gdb.base/dprintf.exp: dprintf 29
PASS: gdb.base/dprintf.exp: dprintf foo,"At foo entry\n"
PASS: gdb.base/dprintf.exp: ignore $bpnum 1
PASS: gdb.base/dprintf.exp: dprintf 26,"arg=%d, g=%d\n", arg, g
PASS: gdb.base/dprintf.exp: dprintf info 1
PASS: gdb.base/dprintf.exp: break 27
PASS: gdb.base/dprintf.exp: 1st dprintf, gdb
PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
UNSUPPORTED: gdb.base/dprintf.exp: set dprintf style to agent
PASS: gdb.base/dprintf.exp: Set dprintf style to an unrecognized type
And also with the native-gdbserver.exp board hacked with:
set GDBFLAGS "${GDBFLAGS} -ex \"set remote Z-packet off\""
which results in:
(gdb) continue
Continuing.
Warning:
Cannot insert breakpoint 3: Target doesn't support breakpoints that have target side commands.
Cannot insert breakpoint 4: Target doesn't support breakpoints that have target side commands.
(gdb) UNSUPPORTED: gdb.base/dprintf.exp: 1st dprintf, agent
gdb.sum:
Running target native-gdbserver
Running ../../../src/gdb/testsuite/gdb.base/dprintf.exp ...
PASS: gdb.base/dprintf.exp: dprintf
PASS: gdb.base/dprintf.exp: dprintf foo
PASS: gdb.base/dprintf.exp: dprintf 29
PASS: gdb.base/dprintf.exp: dprintf foo,"At foo entry\n"
PASS: gdb.base/dprintf.exp: ignore $bpnum 1
PASS: gdb.base/dprintf.exp: dprintf 26,"arg=%d, g=%d\n", arg, g
PASS: gdb.base/dprintf.exp: dprintf info 1
PASS: gdb.base/dprintf.exp: break 27
PASS: gdb.base/dprintf.exp: 1st dprintf, gdb
PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
PASS: gdb.base/dprintf.exp: set dprintf style to agent
UNSUPPORTED: gdb.base/dprintf.exp: 1st dprintf, agent
PASS: gdb.base/dprintf.exp: Set dprintf style to an unrecognized type
(One of the new comments mentions breakpoint always-inserted mode.
Actually testing with breakpoint always-inserted mode fails these
dprintf tests, due to the way they are written. But that'll take a
more substancial rewrite of the tests, so I'm leaving that for another
day.)
gdb/testsuite/
2014-03-24 Hui Zhu <hui@codesourcery.com>
Pedro Alves <palves@redhat.com>
PR breakpoints/16101
* gdb.base/dprintf.exp: Use unsupported rather than changing the
test pass/fail messages. Detect missing support for dprintf when
breakpoints are actually inserted.
* gdb.base/mi-dprintf.exp: Detect missing support for dprintf when
breakpoints are actually inserted.
* lib/mi-support.exp (mi_run_cmd_full): Return -1 if continue
fails.
---
gdb/testsuite/ChangeLog | 12 +++++++++
gdb/testsuite/gdb.base/dprintf.exp | 53 ++++++++++++++++++++++++++-----------
gdb/testsuite/gdb.mi/mi-dprintf.exp | 45 ++++++++++++++++++-------------
gdb/testsuite/lib/mi-support.exp | 1 +
4 files changed, 77 insertions(+), 34 deletions(-)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 88ba2a3..9b5ce14 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,15 @@
+2014-03-24 Hui Zhu <hui@codesourcery.com>
+ Pedro Alves <palves@redhat.com>
+
+ PR breakpoints/16101
+ * gdb.base/dprintf.exp: Use unsupported rather than changing the
+ test pass/fail messages. Detect missing support for dprintf when
+ breakpoints are actually inserted.
+ * gdb.base/mi-dprintf.exp: Detect missing support for dprintf when
+ breakpoints are actually inserted.
+ * lib/mi-support.exp (mi_run_cmd_full): Return -1 if continue
+ fails.
+
2014-03-24 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/gdb-sigterm.exp (do_test): Remove "set debug lin-lwp 1".
diff --git a/gdb/testsuite/gdb.base/dprintf.exp b/gdb/testsuite/gdb.base/dprintf.exp
index cb21d2e..a040580 100644
--- a/gdb/testsuite/gdb.base/dprintf.exp
+++ b/gdb/testsuite/gdb.base/dprintf.exp
@@ -96,15 +96,20 @@ if ![target_info exists gdb,noinferiorio] {
"2nd dprintf, fprintf"
}
+# Now test the "agent" style.
+
set target_can_dprintf 1
-set msg "Set dprintf style to agent"
+set msg "set dprintf style to agent"
gdb_test_multiple "set dprintf-style agent" $msg {
-re "warning: Target cannot run dprintf commands.*\r\n$gdb_prompt $" {
+
+ # The target reports that it doesn't support target side
+ # commands at all.
set target_can_dprintf 0
- pass "$msg - cannot do"
+ unsupported "$msg"
}
-re ".*$gdb_prompt $" {
- pass "$msg - can do"
+ pass "$msg"
}
}
@@ -113,20 +118,36 @@ if $target_can_dprintf {
gdb_test "" "Breakpoint"
- gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "1st dprintf, agent"
-
- gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf, agent"
+ # Even if the the target reports that it does support target side
+ # commands, we can only tell that it supports them in combination
+ # with a particular breakpoint type (Z0, Z1, etc.) when we try to
+ # insert the breakpoint. When "set breakpoint always-inserted is
+ # off", that'll be on next continue.
+ set msg "1st dprintf, agent"
+ gdb_test_multiple "continue" $msg {
+ -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
+ set target_can_dprintf 0
+ unsupported "$msg"
+ }
+ -re "Breakpoint \[0-9\]+, foo .*$gdb_prompt $" {
+ pass "$msg"
+ }
+ }
- gdb_test_sequence "info breakpoints" "dprintf info 2" {
- "\[\r\n\]Num Type Disp Enb Address +What"
- "\[\r\n\]2 breakpoint"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\]3 dprintf"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\] agent-printf \"At foo entry\\\\n\""
- "\[\r\n\]4 dprintf"
- "\[\r\n\]\tbreakpoint already hit 2 times"
- "\[\r\n\] agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
+ if $target_can_dprintf {
+ gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf, agent"
+
+ gdb_test_sequence "info breakpoints" "dprintf info 2" {
+ "\[\r\n\]Num Type Disp Enb Address +What"
+ "\[\r\n\]2 breakpoint"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\]3 dprintf"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\] agent-printf \"At foo entry\\\\n\""
+ "\[\r\n\]4 dprintf"
+ "\[\r\n\]\tbreakpoint already hit 2 times"
+ "\[\r\n\] agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
+ }
}
}
diff --git a/gdb/testsuite/gdb.mi/mi-dprintf.exp b/gdb/testsuite/gdb.mi/mi-dprintf.exp
index af334cf..983acce 100644
--- a/gdb/testsuite/gdb.mi/mi-dprintf.exp
+++ b/gdb/testsuite/gdb.mi/mi-dprintf.exp
@@ -140,30 +140,39 @@ gdb_expect {
}
if $target_can_dprintf {
- mi_run_cmd
+ if {[mi_run_cmd] < 0} {
+ # This likely means we failed to use target side commands in
+ # combination with software breakpoints. IOW, the target
+ # likely doesn't support target-side software breakpoints.
+ set target_can_dprintf 0
+ unsupported "send dprintf to target"
+ }
- mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
+ if $target_can_dprintf {
+ mi_expect_stop ".*" ".*" ".*" ".*" ".*" "" "mi expect stop"
- mi_send_resuming_command "exec-continue" "mi 1st dprintf continue, agent"
- mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 1st dprintf, agent"
+ mi_send_resuming_command "exec-continue" "mi 1st dprintf continue, agent"
+ mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 1st dprintf, agent"
- mi_send_resuming_command "exec-continue" "mi 2nd dprintf continue, agent"
+ mi_send_resuming_command "exec-continue" "mi 2nd dprintf continue, agent"
- # The =breakpoint-modified text is a part of the "-exec-continue" output.
- set msg "mi info dprintf second time"
- gdb_expect {
- -re "=breakpoint-modified," {
- pass $msg
- }
- -re ".*$mi_gdb_prompt$" {
- fail "$msg"
- }
- timeout {
- fail "$msg"
+ # The =breakpoint-modified text is a part of the
+ # "-exec-continue" output.
+ set msg "mi info dprintf second time"
+ gdb_expect {
+ -re "=breakpoint-modified," {
+ pass $msg
+ }
+ -re ".*$mi_gdb_prompt$" {
+ fail "$msg"
+ }
+ timeout {
+ fail "$msg"
+ }
}
- }
- mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 2nd dprintf, agent"
+ mi_expect_stop ".*" "foo" ".*" ".*" ".*" "" "mi 2nd dprintf, agent"
+ }
}
mi_gdb_test "set dprintf-style foobar" ".*error.*" "mi set dprintf style to an unrecognized type"
diff --git a/gdb/testsuite/lib/mi-support.exp b/gdb/testsuite/lib/mi-support.exp
index 213073a..7c234c0 100644
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -843,6 +843,7 @@ proc mi_run_cmd_full {use_mi_command args} {
send_gdb "${run_prefix}continue\n"
gdb_expect 60 {
-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+ -re "${run_match}\\^error.*$mi_gdb_prompt" {return -1}
default {}
}
return 0
--
1.7.11.7
--
Pedro Alves
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf, failures with non-Z0-supporting gdbservers
2014-03-24 19:39 ` Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf, " Pedro Alves
@ 2014-03-25 8:27 ` Hui Zhu
0 siblings, 0 replies; 5+ messages in thread
From: Hui Zhu @ 2014-03-25 8:27 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches ml
Hi Pedro,
Thanks for your patch.
On 03/25/14 03:39, Pedro Alves wrote:
> AFAICT, this is actually PR16101, not PR16494. Adjusting subject.
>
> On 03/23/2014 11:35 AM, Hui Zhu wrote:
>> On 03/21/14 21:11, Pedro Alves wrote:
>
>
> Similarly for the MI test.
>
> This patch makes the tests handle this scenario.
>
> Tested with native, and native gdbserver on x86_64 Fedora 17.
>
> Also tested with the native-gdbserver.exp board hacked with:
>
> set GDBFLAGS "${GDBFLAGS} -ex \"set remote breakpoint-commands off\""
>
> (actually, "set remote breakpoint-commands off" is presently broken,
> so this was on top of a fix for that command.)
Do you have plan to fix it?
>
> which results in:
> (gdb) PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
> set dprintf-style agent
> warning: Target cannot run dprintf commands, falling back to GDB printf
> warning: Target cannot run dprintf commands, falling back to GDB printf
> (gdb) UNSUPPORTED: gdb.base/dprintf.exp: set dprintf style to agent
>
> gdb.sum:
> (One of the new comments mentions breakpoint always-inserted mode.
> Actually testing with breakpoint always-inserted mode fails these
> dprintf tests, due to the way they are written. But that'll take a
> more substancial rewrite of the tests, so I'm leaving that for another
> day.)
>
I tried "set breakpoint always-inserted on", "set breakpoint always-inserted off" and
"set breakpoint always-inserted auto". But I didn't get fail.
Do you mind let me take a look on the log?
Best,
Hui
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-03-25 8:27 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-03-11 14:32 [PATCH] Fix PR breakpoints/16494: gdb.base/dprintf.exp agent-printf failures with non-Z0-supporting gdbservers Hui Zhu
2014-03-21 13:11 ` Pedro Alves
2014-03-23 11:36 ` Hui Zhu
2014-03-24 19:39 ` Fix PR breakpoints/16101: gdb.base/dprintf.exp agent-printf, " Pedro Alves
2014-03-25 8:27 ` Hui Zhu
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