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From: deller@kernel.org
To: qemu-devel@nongnu.org
Cc: "Richard Henderson" <richard.henderson@linaro.org>,
	"Warner Losh" <imp@bsdimp.com>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	"Helge Deller" <deller@gmx.de>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Kyle Evans" <kevans@freebsd.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>
Subject: [PATCH 06/12] linux-user: fix matching ioctl numbers in print_ioctl
Date: Sat,  7 Mar 2026 20:52:37 +0100	[thread overview]
Message-ID: <20260307195243.8813-7-deller@kernel.org> (raw)
In-Reply-To: <20260307195243.8813-1-deller@kernel.org>

From: Andreas Schwab <schwab@suse.de>

target_cmd in struct IOCTLEntry is a signed int.  Make sure the ioctl cmd
argument in the syscall is converted to int when matching, so that it
works correctly with an ioctl cmd that has bit 31 set.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 linux-user/strace.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/linux-user/strace.c b/linux-user/strace.c
index 02d610a7f8..2cbaf94c89 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1021,12 +1021,12 @@ print_syscall_ret_ioctl(CPUArchState *cpu_env, const struct syscallname *name,
         int target_size;
 
         for (ie = ioctl_entries; ie->target_cmd != 0; ie++) {
-            if (ie->target_cmd == arg1) {
+            if (ie->target_cmd == (int)arg1) {
                 break;
             }
         }
 
-        if (ie->target_cmd == arg1 &&
+        if (ie->target_cmd == (int)arg1 &&
            (ie->access == IOC_R || ie->access == IOC_RW)) {
             arg_type = ie->arg_type;
             qemu_log(" (");
@@ -4359,7 +4359,7 @@ print_ioctl(CPUArchState *cpu_env, const struct syscallname *name,
     int target_size;
 
     for (ie = ioctl_entries; ie->target_cmd != 0; ie++) {
-        if (ie->target_cmd == arg1) {
+        if (ie->target_cmd == (int)arg1) {
             break;
         }
     }
-- 
2.53.0



  parent reply	other threads:[~2026-03-07 19:54 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-07 19:52 [PATCH 00/12] linux-user and hppa patches deller
2026-03-07 19:52 ` [PATCH 01/12] hw/hppa: Avoid leaking a diva-gsp device deller
2026-03-07 19:52 ` [PATCH 02/12] hw/char: Drop disable property of Diva GSP card deller
2026-03-07 19:52 ` [PATCH 03/12] linux-user/strace: fix printing of file offsets deller
2026-03-07 19:52 ` [PATCH 04/12] linux-user: properly check flags in openat2 deller
2026-03-07 19:52 ` [PATCH 05/12] linux-user: Check if RESOLVE_CACHED flag is defined before using it deller
2026-03-07 19:52 ` deller [this message]
2026-03-07 19:52 ` [PATCH 07/12] linux-user: fix TIOCGSID ioctl deller
2026-03-07 19:52 ` [PATCH 08/12] linux-user: Deal with mmap where start > reserved_va deller
2026-03-07 19:52 ` [PATCH 09/12] bsd-user: " deller
2026-03-07 19:52 ` [PATCH 10/12] tests/tcg/multiarch/test-mmap: Print more details deller
2026-03-07 20:53   ` Pierrick Bouvier
2026-03-07 19:52 ` [PATCH 11/12] tests/tcg/multiarch/test-mmap: Check mmaps beyond reserved_va deller
2026-03-07 20:54   ` Pierrick Bouvier
2026-03-07 19:52 ` [PATCH 12/12] linux-user: Improve formatting for mremap() deller
2026-03-07 20:54   ` Pierrick Bouvier
2026-03-08 21:50 ` [PATCH 00/12] linux-user and hppa patches Philippe Mathieu-Daudé

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