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From: Ilya Leoshkevich <iii@linux.ibm.com>
To: "Richard Henderson" <richard.henderson@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Alex Bennée" <alex.bennee@linaro.org>
Cc: qemu-devel@nongnu.org, Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v2 1/4] linux-user: Fix semctl() strace
Date: Mon, 25 Mar 2024 20:22:59 +0100	[thread overview]
Message-ID: <20240325192436.561154-2-iii@linux.ibm.com> (raw)
In-Reply-To: <20240325192436.561154-1-iii@linux.ibm.com>

The indices of arguments used with semctl() are all off-by-1, because
arg1 is the ipc() command. Fix them. While at it, reuse print_semctl().

New output (for a small test program):

    3540333 semctl(999,888,SEM_INFO,0x00007fe5051ee9a0) = -1 errno=14 (Bad address)

Fixes: 7ccfb2eb5f9d ("Fix warnings that would be caused by gcc flag -Wwrite-strings")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 linux-user/strace.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/linux-user/strace.c b/linux-user/strace.c
index 9934e2208e2..660f942f599 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -657,7 +657,6 @@ print_newselect(CPUArchState *cpu_env, const struct syscallname *name,
 }
 #endif
 
-#ifdef TARGET_NR_semctl
 static void
 print_semctl(CPUArchState *cpu_env, const struct syscallname *name,
              abi_long arg1, abi_long arg2, abi_long arg3,
@@ -668,7 +667,6 @@ print_semctl(CPUArchState *cpu_env, const struct syscallname *name,
     print_ipc_cmd(arg3);
     qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
 }
-#endif
 
 static void
 print_shmat(CPUArchState *cpu_env, const struct syscallname *name,
@@ -698,10 +696,8 @@ print_ipc(CPUArchState *cpu_env, const struct syscallname *name,
 {
     switch(arg1) {
     case IPCOP_semctl:
-        qemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",",
-                 arg1, arg2);
-        print_ipc_cmd(arg3);
-        qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
+        print_semctl(cpu_env, &(const struct syscallname){ .name = "semctl" },
+                     arg2, arg3, arg4, arg5, 0, 0);
         break;
     case IPCOP_shmat:
         print_shmat(cpu_env, &(const struct syscallname){ .name = "shmat" },
-- 
2.44.0



  reply	other threads:[~2024-03-25 19:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-25 19:22 [PATCH v2 0/4] linux-user: Fix shmat(NULL) for h != g Ilya Leoshkevich
2024-03-25 19:22 ` Ilya Leoshkevich [this message]
2024-03-25 19:23 ` [PATCH v2 2/4] linux-user: Fix shmat() strace Ilya Leoshkevich
2024-03-25 19:23 ` [PATCH v2 3/4] linux-user: Fix shmat(NULL) for h != g Ilya Leoshkevich
2024-03-25 19:23 ` [PATCH v2 4/4] tests/tcg: Test shmat(NULL) Ilya Leoshkevich
2024-03-27  5:55 ` [PATCH v2 0/4] linux-user: Fix shmat(NULL) for h != g Richard Henderson

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