From e197ad3c87723a2bdf383d38fcfa3eaa4fa1ba12 Mon Sep 17 00:00:00 2001 From: Yao Qi Date: Thu, 3 Mar 2016 09:17:44 +0000 Subject: [PATCH] Step over syscalll insn with disp-step on and off disp-step-syscall.exp was added to test displaced stepping over syscall instructions, in which we set breakpoint on syscall instruction, and step over it. In fact, we can extend the test to non-displaced-stepping case. This patch wraps the test with displaced stepping on and off. Note that the indentation and format isn't adjusted here to make this patch easy to read. The following patch will fix the format separately. gdb/testsuite: 2016-03-03 Yao Qi * gdb.base/disp-step-syscall.exp: Don't invoke support_displaced_stepping. (disp_step_cross_syscall): Test with displaced stepping off and on if supported. --- gdb/testsuite/ChangeLog | 7 +++++++ gdb/testsuite/gdb.base/disp-step-syscall.exp | 13 +++++++------ 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index a8b958f58c1..244efcce56d 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2016-03-03 Yao Qi + + * gdb.base/disp-step-syscall.exp: Don't invoke + support_displaced_stepping. + (disp_step_cross_syscall): Test with displaced stepping off and + on if supported. + 2016-03-03 Yao Qi * gdb.base/disp-step-syscall.exp (check_pc_after_cross_syscall): New diff --git a/gdb/testsuite/gdb.base/disp-step-syscall.exp b/gdb/testsuite/gdb.base/disp-step-syscall.exp index a1af3b42307..3cf436d11e6 100644 --- a/gdb/testsuite/gdb.base/disp-step-syscall.exp +++ b/gdb/testsuite/gdb.base/disp-step-syscall.exp @@ -15,11 +15,6 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . -if { ![support_displaced_stepping] } { - unsupported "displaced stepping" - return -1 -} - set syscall_insn "" # Define the syscall instruction for each target. @@ -124,6 +119,11 @@ proc disp_step_cross_syscall { syscall } { return -1 } + foreach_with_prefix displaced {"off" "on"} { + if {$displaced == "on" && ![support_displaced_stepping]} { + continue + } + set ret [setup $syscall] set syscall_insn_addr [lindex $ret 0] @@ -149,7 +149,7 @@ proc disp_step_cross_syscall { syscall } { gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, .*" \ "continue to syscall insn $syscall" - gdb_test_no_output "set displaced-stepping on" + gdb_test_no_output "set displaced-stepping $displaced" # Check the address of next instruction of syscall. if {[gdb_test "stepi" "x/i .*=>.*" "single step over $syscall"] != 0} { @@ -164,6 +164,7 @@ proc disp_step_cross_syscall { syscall } { gdb_test "break marker" "Breakpoint.*at.* file .*${testfile}.c, line.*" gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, marker \\(\\) at.*" \ "continue to marker ($syscall)" + } } } -- 2.30.2