[PUSHED] gdb/testsuite: updates for gdb.arch/{amd64,i386}-disp-step-self-call.exp

[PUSHED] gdb/testsuite: updates for gdb.arch/{amd64,i386}-disp-step-self-call.exp

[Andrew Burgess]

This commit:

  commit cf141dd8ccd36efe833aae3ccdb060b517cc1112
  Date:   Wed Feb 22 12:15:34 2023 +0000

      gdb: fix reg corruption from displaced stepping on amd64

Added two test scripts gdb.arch/amd64-disp-step-self-call.exp and
gdb.arch/i386-disp-step-self-call.exp.  These scripts contained a test
that included a stack address in the test name, this makes it harder
to compare results between runs.

This commit gives the tests proper names that doesn't include an
address.

Also in gdb.arch/i386-disp-step-self-call.exp I noticed that we were
writing 8-bytes rather than 4 in order to clear the return address
entry on the stack.  This is also fixed in this commit.
---
 gdb/testsuite/gdb.arch/amd64-disp-step-self-call.exp | 3 ++-
 gdb/testsuite/gdb.arch/i386-disp-step-self-call.exp  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/gdb.arch/amd64-disp-step-self-call.exp b/gdb/testsuite/gdb.arch/amd64-disp-step-self-call.exp
index db44a319a47..ecac3cdc1cf 100644
--- a/gdb/testsuite/gdb.arch/amd64-disp-step-self-call.exp
+++ b/gdb/testsuite/gdb.arch/amd64-disp-step-self-call.exp
@@ -60,7 +60,8 @@ gdb_test_multiple "x/2i \$pc" "get address of next insn" {
 
 # Clear the slot on the stack and confirm it was set to zero.
 set sp [expr $sp - 0x8]
-gdb_test_no_output "set {unsigned long long} $sp = 0"
+gdb_test_no_output "set {unsigned long long} $sp = 0" \
+    "clear stack slot"
 set zero_val 0x[format %016x 0]
 gdb_test "x/1gx 0x[format %x $sp]" "$hex:\\s+${zero_val}" \
     "check return address slot was set to zero"
diff --git a/gdb/testsuite/gdb.arch/i386-disp-step-self-call.exp b/gdb/testsuite/gdb.arch/i386-disp-step-self-call.exp
index 7ea036fe3e6..034ef4800b4 100644
--- a/gdb/testsuite/gdb.arch/i386-disp-step-self-call.exp
+++ b/gdb/testsuite/gdb.arch/i386-disp-step-self-call.exp
@@ -60,7 +60,8 @@ gdb_test_multiple "x/2i \$pc" "get address of next insn" {
 
 # Clear the slot on the stack and confirm it was set to zero.
 set sp [expr $sp - 0x4]
-gdb_test_no_output "set {unsigned long long} $sp = 0"
+gdb_test_no_output "set {unsigned int} $sp = 0" \
+    "clear stack slot"
 set zero_val 0x[format %08x 0]
 gdb_test "x/1wx 0x[format %x $sp]" "$hex:\\s+${zero_val}" \
     "check return address slot was set to zero"

base-commit: a67a3bbd35c3d8f028cad5cb9e3122e56071baee
-- 
2.25.4