* [REPOST][PATCH] H8/300: sim: testsuite: Use the correct file descriptor for stdout
@ 2026-08-27 8:31 Jan Dubiec
0 siblings, 0 replies; only message in thread
From: Jan Dubiec @ 2026-08-27 8:31 UTC (permalink / raw)
To: gdb-patches; +Cc: Jan Dubiec, Andrew Burgess
This is obviously a typo, because the file descriptor for stdout is 1
on both Linux and Windows. As a result, the test cases returned nothing
on Windows, i.e. neither "pass" nor "fail".
It works on Linux, however, because file descriptors 0-2 usually all
refer to the same underlying device, which is opened for bidirectional
I/O. File descriptor 1 may be line- or block-buffered by libc, but once
the data is actually written to the kernel, it ultimately goes to the
same underlying bidirectional pseudo-terminal device.
---
sim/testsuite/h8300/testutils.inc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sim/testsuite/h8300/testutils.inc b/sim/testsuite/h8300/testutils.inc
index 63d27d45c14..1e2c7c31c7b 100644
--- a/sim/testsuite/h8300/testutils.inc
+++ b/sim/testsuite/h8300/testutils.inc
@@ -85,7 +85,7 @@ _main:
; Output "pass\n"
.macro pass
- mov.w #0, r0 ; fd == stdout
+ mov.w #1, r0 ; fd == stdout
.if (sim_cpu == h8300)
mov.w #pass_str, r1 ; buf == "pass\n"
mov.w #5, r2 ; len == 5
@@ -98,7 +98,7 @@ _main:
; Output "fail\n"
.macro fail
- mov.w #0, r0 ; fd == stdout
+ mov.w #1, r0 ; fd == stdout
.if (sim_cpu == h8300)
mov.w #fail_str, r1 ; buf == "fail\n"
mov.w #5, r2 ; len == 5
--
2.55.0
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