diff mbox series

[v2,1/4] linux-user: Fix semctl() strace

Message ID 20240325192436.561154-2-iii@linux.ibm.com
State New
Headers show
Series linux-user: Fix shmat(NULL) for h != g | expand

Commit Message

Ilya Leoshkevich March 25, 2024, 7:22 p.m. UTC 
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 mbox series

Patch

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" },