[binutils-gdb] gdb: testsuite: Support displaced stepping on LoongArch

[binutils-gdb] gdb: testsuite: Support displaced stepping on LoongArch

[Tiezhu Yang]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=18bd4744611b97e9fca41f97b871eea7bd66bd3e

commit 18bd4744611b97e9fca41f97b871eea7bd66bd3e
Author: Tiezhu Yang <yangtiezhu@loongson.cn>
Date:   Tue May 10 20:44:04 2022 +0800

    gdb: testsuite: Support displaced stepping on LoongArch
    
    When execute the following command on LoongArch:
    
      make check-gdb TESTS="gdb.base/async-shell.exp"
    
    we can see the following message in gdb/testsuite/gdb.sum:
    
      UNSUPPORTED: gdb.base/async-shell.exp: displaced stepping
    
    modify support_displaced_stepping to support displaced stepping
    on LoongArch.
    
    With this patch:
    
      PASS: gdb.base/async-shell.exp: run &
      PASS: gdb.base/async-shell.exp: shell echo foo
      PASS: gdb.base/async-shell.exp: interrupt
      PASS: gdb.base/async-shell.exp: process stopped
    
    I did the following tests that use support_displaced_stepping
    with this patch on LoongArch, there is no failed testcases.
    
    loongson@linux:~/gdb.git$ grep -r support_displaced_stepping gdb/testsuite/gdb.*
    gdb/testsuite/gdb.arch/disp-step-insn-reloc.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.base/step-over-no-symbols.exp:    if { $displaced != "off" && ![support_displaced_stepping] } {
    gdb/testsuite/gdb.base/moribund-step.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.base/async-shell.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.base/inferior-died.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.base/step-over-syscall.exp:        if {$displaced == "on" && ![support_displaced_stepping]} {
    gdb/testsuite/gdb.mi/mi-watch-nonstop.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-ns-stale-regcache.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-nonstop.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-nsmoribund.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-nsintrall.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-nsthrexec.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.mi/mi-nonstop-exit.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.multi/watchpoint-multi.exp:if [support_displaced_stepping] {
    gdb/testsuite/gdb.python/py-evthreads.exp:if { ![support_displaced_stepping] } {
    gdb/testsuite/gdb.threads/step-over-lands-on-breakpoint.exp:    if { $displaced != "off" && ![support_displaced_stepping] } {
    gdb/testsuite/gdb.threads/interrupt-while-step-over.exp:    if { ${displaced-stepping} != "off" && ![support_displaced_stepping] } {
    gdb/testsuite/gdb.threads/step-over-trips-on-watchpoint.exp:    if { $displaced != "off" && ![support_displaced_stepping] } {
    
    Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>

Diff:
---
 gdb/testsuite/lib/gdb.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 97841ca19a1..720418beac2 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3212,7 +3212,7 @@ proc support_displaced_stepping {} {
     if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
 	 || [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
 	 || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
-	 || [istarget "aarch64*-*-linux*"] } {
+	 || [istarget "aarch64*-*-linux*"] || [istarget "loongarch*-*-linux*"] } {
 	return 1
     }