[binutils-gdb] [gdb/testsuite] Fix gdb.base/maint.exp with check-read1

[Tom de Vries <vries@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9197cd8b52aa41a04b883d83df863ecb5afc5d35

commit 9197cd8b52aa41a04b883d83df863ecb5afc5d35
Author: Tom de Vries <tdevries@suse.de>
Date:   Mon Jul 29 11:24:04 2019 +0200

    [gdb/testsuite] Fix gdb.base/maint.exp with check-read1
    
    With gdb.base/maint.exp and check-read1, we get:
    ...
    FAIL: gdb.base/maint.exp: maint print registers
    ...
    
    Using this patch:
    ...
    diff --git a/gdb/testsuite/gdb.base/maint.exp b/gdb/testsuite/gdb.base/maint.exp
    index a7675ea215..b81d7ec660 100644
    --- a/gdb/testsuite/gdb.base/maint.exp
    +++ b/gdb/testsuite/gdb.base/maint.exp
    @@ -81,7 +81,9 @@ gdb_test_multiple $test $test {
             exp_continue
         }
         -re "$gdb_prompt $" {
    -        gdb_assert { $saw_registers && $saw_headers } $test
    +       gdb_assert { $saw_headers } "$test: saw headers"
    +       gdb_assert { $saw_registers } "$test: saw registers"
    +       pass "$test: got prompt"
         }
     }
    ...
    
    We get more information:
    ...
    PASS: gdb.base/maint.exp: maint print registers: saw headers
    FAIL: gdb.base/maint.exp: maint print registers: saw registers
    PASS: gdb.base/maint.exp: maint print registers: got prompt
    ...
    
    The problem is that when matching:
    ...
    (gdb) maint print registers^M
     Name         Nr  Rel Offset    Size  Type            ^M
     rax           0    0      0       8 int64_t         ^M
    ...
    the regexp for $saw_headers ends in "\[\r\n\]+", which
    allows it to match only the "\r".  The remaining "\n" then start the next line
    to be matched, which doesn't match for the $saw_registers regexp since it
    starts with "^\[^\r\n\]+".
    
    Fix this by ending the regexps with "\r\n".
    
    Tested on x86_64-linux.
    
    gdb/testsuite/ChangeLog:
    
    2019-07-29  Tom de Vries  <tdevries@suse.de>
    
    	* gdb.base/maint.exp: Use "\r\n" instead of "\[\r\n\]+" in "maint
              print registers" regexps.

Diff:
---
 gdb/testsuite/ChangeLog          | 5 +++++
 gdb/testsuite/gdb.base/maint.exp | 6 +++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index ff6159e..f18f0ab 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2019-07-29  Tom de Vries  <tdevries@suse.de>
 
+	* gdb.base/maint.exp: Use "\r\n" instead of "\[\r\n\]+" in "maint
+          print registers" regexps.
+
+2019-07-29  Tom de Vries  <tdevries@suse.de>
+
 	* gdb.base/define.exp: Add "\r\n" to "reset gdb_prompt" regexp.
 
 2019-07-29  Tom de Vries  <tdevries@suse.de>
diff --git a/gdb/testsuite/gdb.base/maint.exp b/gdb/testsuite/gdb.base/maint.exp
index a7675ea..36738f6 100644
--- a/gdb/testsuite/gdb.base/maint.exp
+++ b/gdb/testsuite/gdb.base/maint.exp
@@ -69,15 +69,15 @@ set saw_registers 0
 set saw_headers 0
 set test "maint print registers"
 gdb_test_multiple $test $test {
-    -re "\[^\r\n\]+Name\[^\r\n\]+Nr\[^\r\n\]+Rel\[^\r\n\]+Offset\[^\r\n\]+Size\[^\r\n\]+Type\[^\r\n\]+\[\r\n\]+" {
+    -re "\[^\r\n\]+Name\[^\r\n\]+Nr\[^\r\n\]+Rel\[^\r\n\]+Offset\[^\r\n\]+Size\[^\r\n\]+Type\[^\r\n\]+\r\n" {
 	set saw_headers 1
 	exp_continue
     }
-    -re "^\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[\r\n\]+" {
+    -re "^\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\r\n" {
         set saw_registers 1
         exp_continue
     }
-    -re "^\\*\[0-9\]+\[^\r\n\]+\[\r\n\]+" {
+    -re "^\\*\[0-9\]+\[^\r\n\]+\r\n" {
         exp_continue
     }
     -re "$gdb_prompt $" {