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* [PATCH][gdb/testsuite] Add KFAIL for missing support of reverse-debugging xsave
@ 2019-09-27 15:11 Tom de Vries
  2019-10-12 16:24 ` [PING][PATCH][gdb/testsuite] " Tom de Vries
  2019-10-12 23:09 ` [PATCH][gdb/testsuite] " Simon Marchi
  0 siblings, 2 replies; 4+ messages in thread
From: Tom de Vries @ 2019-09-27 15:11 UTC (permalink / raw)
  To: gdb-patches

Hi,

Normally the gdb.reverse/*.exp test-cases pass on my system (apart from the
record/23188 KFAIL for gdb.reverse/step-precsave.exp).  But when specifying
GLIBC_TUNABLES=glibc.tune.hwcaps=-XSAVEC_Usable to force glibc to use
_dl_runtime_resolve_xsave instead of _dl_runtime_resolve_xsavec, we run into
1054 FAILs like this:
...
(gdb) PASS: gdb.reverse/sigall-reverse.exp: b gen_HUP
continue^M
Continuing.^M
Process record does not support instruction 0xfae64 at address \
  0x7ffff7ded958.^M
Process record: failed to record execution log.^M
^M
Program stopped.^M
0x00007ffff7ded958 in _dl_runtime_resolve_xsave () from \
  /lib64/ld-linux-x86-64.so.2^M
(gdb) FAIL: gdb.reverse/sigall-reverse.exp: get signal ABRT
...

The problem is that the xsave instruction is not supported in
reverse-debugging (PR record/25038).

Add KFAILs for this PR.

Tested on x86_64-linux.

OK for trunk?

Thanks,
- Tom

[gdb/testsuite] Add KFAIL for missing support of reverse-debugging xsave

gdb/testsuite/ChangeLog:

2019-09-27  Tom de Vries  <tdevries@suse.de>

	PR record/25038
	* gdb.reverse/sigall-precsave.exp: Add PR record/25038 KFAIL.
	* gdb.reverse/sigall-reverse.exp: Same.
	* gdb.reverse/solib-precsave.exp: Same.
	* gdb.reverse/solib-reverse.exp: Same.
	* gdb.reverse/step-precsave.exp: Same.
	* gdb.reverse/until-precsave.exp: Same.
	* gdb.reverse/until-reverse.exp: Same.
	* lib/gdb.exp (gdb_continue_to_breakpoint): Same.

---
 gdb/testsuite/gdb.reverse/sigall-precsave.exp | 14 ++++++++++++--
 gdb/testsuite/gdb.reverse/sigall-reverse.exp  | 11 +++++++++++
 gdb/testsuite/gdb.reverse/solib-precsave.exp  | 13 ++++++++++++-
 gdb/testsuite/gdb.reverse/solib-reverse.exp   | 13 ++++++++++++-
 gdb/testsuite/gdb.reverse/step-precsave.exp   |  4 ++++
 gdb/testsuite/gdb.reverse/until-precsave.exp  | 13 ++++++++++++-
 gdb/testsuite/gdb.reverse/until-reverse.exp   | 15 ++++++++++++---
 gdb/testsuite/lib/gdb.exp                     |  4 ++++
 8 files changed, 79 insertions(+), 8 deletions(-)

diff --git a/gdb/testsuite/gdb.reverse/sigall-precsave.exp b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
index 79a1e7282b6..ccdfde407fc 100644
--- a/gdb/testsuite/gdb.reverse/sigall-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-precsave.exp
@@ -258,14 +258,20 @@ foreach sig $signals {
     }
 }
 
-gdb_test_multiple "continue" "continue" {
+set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
+set test "run to end of main"
+gdb_test_multiple "continue" $test {
     -re "Breakpoint .* end of main .*$gdb_prompt $" {
-	pass "run to end of main"
+	pass $test
     }
     -re "Breakpoint .* handle_.*$gdb_prompt $" {
 	send_gdb "continue\n"
 	exp_continue
     }
+    -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	kfail "gdb/25038" $test
+	return -1
+    }
 }
 
 delete_breakpoints
@@ -289,8 +295,12 @@ set sig_supported 1
 set thissig "ABRT"
 
 # test signal handling
+set record_instruction_kfail 0
 foreach sig [lrange $signals 1 end] {
     test_one_sig $sig
+    if { $record_instruction_kfail } {
+	return -1
+    }
 }
 
 # The last signal (SIGTERM) gets handled slightly differently because
diff --git a/gdb/testsuite/gdb.reverse/sigall-reverse.exp b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
index c734fe8e17a..884a00c5dcf 100644
--- a/gdb/testsuite/gdb.reverse/sigall-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/sigall-reverse.exp
@@ -37,6 +37,7 @@ proc test_one_sig {nextsig} {
     global sig_supported
     global gdb_prompt
     global thissig
+    global record_instruction_kfail
 
     set this_sig_supported $sig_supported
     gdb_test "handle SIG$thissig stop print" \
@@ -51,6 +52,7 @@ proc test_one_sig {nextsig} {
 	    setup_xfail "i*86-pc-linuxoldld-gnu" "i*86-pc-linuxaout-gnu"
 	}
 	set testmsg "get signal $thissig"
+	set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
 	gdb_test_multiple "continue" $testmsg {
 	    -re "Program received signal SIG$thissig.*handle_$thissig.*$gdb_prompt $" {
 		fail "$testmsg (wrong location)"
@@ -62,6 +64,11 @@ proc test_one_sig {nextsig} {
 		xfail $testmsg
 		set need_another_continue 0
 	    }
+	    -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+		kfail "gdb/25038" "$testmsg"
+		set record_instruction_kfail 1
+		return
+	    }
 	}
     }
 
@@ -237,8 +244,12 @@ set sig_supported 1
 set thissig "ABRT"
 
 # test signal handling
+set record_instruction_kfail 0
 foreach sig [lrange $signals 1 end] {
     test_one_sig $sig
+    if { $record_instruction_kfail } {
+	return -1
+    }
 }
 
 # The last signal (SIGTERM) gets handled slightly differently because
diff --git a/gdb/testsuite/gdb.reverse/solib-precsave.exp b/gdb/testsuite/gdb.reverse/solib-precsave.exp
index 574d79816db..a3f874c09b7 100644
--- a/gdb/testsuite/gdb.reverse/solib-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/solib-precsave.exp
@@ -91,7 +91,18 @@ gdb_test "break $end_of_main" \
     "Breakpoint $decimal at .*$srcfile, line $end_of_main\." \
     "breakpoint at end of main"
 
-gdb_test "continue" "Breakpoint .* end of main .*" "run to end of main"
+set test "run to end of main"
+set pass_pattern "Breakpoint .* end of main .*"
+set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
+gdb_test_multiple "continue" $test {
+    -re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
+	pass $test
+    }
+    -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	kfail "gdb/25038" $test
+	return -1
+    }
+}
 
 gdb_test "record save $precsave" \
     "Saved core file $precsave with execution log\."  \
diff --git a/gdb/testsuite/gdb.reverse/solib-reverse.exp b/gdb/testsuite/gdb.reverse/solib-reverse.exp
index 77c321388b4..53b35239f81 100644
--- a/gdb/testsuite/gdb.reverse/solib-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/solib-reverse.exp
@@ -86,7 +86,18 @@ if [supports_process_record] {
 
 set end_part_one [gdb_get_line_number " end part one" "$srcfile"]
 set end_part_two [gdb_get_line_number " end part two" "$srcfile"]
-gdb_test "until $end_part_one" " end part one.*" "run until end part one"
+set test "run until end part one"
+set pass_pattern " end part one.*"
+set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
+gdb_test_multiple "until $end_part_one" $test {
+    -re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
+	pass $test
+    }
+    -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	kfail "gdb/25038" $test
+	return -1
+    }
+}
 
 gdb_test "reverse-step" " shr1 three .*" "reverse-step third shr1"
 gdb_test "reverse-step" " shr1 two .*"   "reverse-step second shr1"
diff --git a/gdb/testsuite/gdb.reverse/step-precsave.exp b/gdb/testsuite/gdb.reverse/step-precsave.exp
index 2073b8a1542..72ee279f806 100644
--- a/gdb/testsuite/gdb.reverse/step-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/step-precsave.exp
@@ -49,6 +49,7 @@ with_timeout_factor 20 {
     set test "run to end of main"
     set pass_pattern "Breakpoint .* end of main .*"
     set kfail_pattern "Process record does not support instruction 0xc5 at.*"
+    set kfail2_pattern "Process record does not support instruction 0xfae64 at.*"
     gdb_test_multiple "continue" $test {
 	-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
 	    pass $test
@@ -56,6 +57,9 @@ with_timeout_factor 20 {
 	-re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
 	    kfail "record/23188" $test
 	}
+	-re "\[\r\n\]*(?:$kfail2_pattern)\[\r\n\]+$gdb_prompt $" {
+	    kfail "record/25038" $test
+	}
     }
 }
 
diff --git a/gdb/testsuite/gdb.reverse/until-precsave.exp b/gdb/testsuite/gdb.reverse/until-precsave.exp
index baf21ab7ad2..1f09df193fd 100644
--- a/gdb/testsuite/gdb.reverse/until-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/until-precsave.exp
@@ -50,7 +50,18 @@ gdb_test "break $end_of_main" \
 
 # This can take awhile.
 with_timeout_factor 20 {
-    gdb_test "continue" "Breakpoint .* set breakpoint 10a here .*" "run to end of main"
+    set test "run to end of main"
+    set pass_pattern "Breakpoint .* set breakpoint 10a here .*"
+    set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
+    gdb_test_multiple "continue" $test {
+	-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
+	    pass $test
+	}
+	-re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	    kfail "gdb/25038" $test
+	    return -1
+	}
+    }
 }
 
 # So can this, against gdbserver, for example.
diff --git a/gdb/testsuite/gdb.reverse/until-reverse.exp b/gdb/testsuite/gdb.reverse/until-reverse.exp
index 2e26de3ce7b..804e07f46ca 100644
--- a/gdb/testsuite/gdb.reverse/until-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/until-reverse.exp
@@ -49,9 +49,18 @@ gdb_test "until $bp_location1" \
 
 # Advance up to factorial, outer invocation
 #
-gdb_test "advance factorial" \
-    "factorial .value=6..*$srcfile:$bp_location7.*" \
-    "advance to factorial"
+set test "advance to factorial"
+set pass_pattern "factorial .value=6..*$srcfile:$bp_location7.*"
+set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
+gdb_test_multiple "advance factorial" $test {
+    -re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
+	pass "$test"
+    }
+    -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	kfail "gdb/25038" $test
+	return -1
+    }
+}
 
 # At this point, 'until' should continue the inferior up to when all the
 # inner invocations of factorial() are completed and we are back at this
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 3a1f053cf8a..1fcd0f76a52 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -633,10 +633,14 @@ proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
     global gdb_prompt
     set full_name "continue to breakpoint: $name"
 
+    set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
     gdb_test_multiple "continue" $full_name {
 	-re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
 	    pass $full_name
 	}
+	-re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+	    kfail "gdb/25038" $full_name
+	}
     }
 }
 


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2019-09-27 15:11 [PATCH][gdb/testsuite] Add KFAIL for missing support of reverse-debugging xsave Tom de Vries
2019-10-12 16:24 ` [PING][PATCH][gdb/testsuite] " Tom de Vries
2019-10-12 23:09 ` [PATCH][gdb/testsuite] " Simon Marchi
2019-10-13  0:59   ` Tom de Vries

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