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[Qemu-devel] [PATCH v6 02/10] linux-user: Add support for clock_adjtime(
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v6 02/10] linux-user: Add support for clock_adjtime() syscall |
Date: |
Thu, 22 Sep 2016 17:06:30 +0200 |
From: Aleksandar Markovic <address@hidden>
This patch implements Qemu user mode clock_adjtime() syscall support.
The implementation is based on invocation of host's clock_adjtime(), and is
very similar to the implementation of adjtimex() syscall support. The main
difference is the presence of "clockid_t" argument in clock_adjtime().
Signed-off-by: Aleksandar Rikalo <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
---
linux-user/strace.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++
linux-user/strace.list | 3 ++
linux-user/syscall.c | 17 +++++++++++
3 files changed, 96 insertions(+)
diff --git a/linux-user/strace.c b/linux-user/strace.c
index ff7fce9..754035e 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -341,6 +341,69 @@ print_fdset(int n, abi_ulong target_fds_addr)
}
#endif
+#ifdef TARGET_NR_clock_adjtime
+/* IDs of the various system clocks */
+#define TARGET_CLOCK_REALTIME 0
+#define TARGET_CLOCK_MONOTONIC 1
+#define TARGET_CLOCK_PROCESS_CPUTIME_ID 2
+#define TARGET_CLOCK_THREAD_CPUTIME_ID 3
+#define TARGET_CLOCK_MONOTONIC_RAW 4
+#define TARGET_CLOCK_REALTIME_COARSE 5
+#define TARGET_CLOCK_MONOTONIC_COARSE 6
+#define TARGET_CLOCK_BOOTTIME 7
+#define TARGET_CLOCK_REALTIME_ALARM 8
+#define TARGET_CLOCK_BOOTTIME_ALARM 9
+#define TARGET_CLOCK_SGI_CYCLE 10
+#define TARGET_CLOCK_TAI 11
+
+static void
+print_clockid(int clockid, int last)
+{
+ switch (clockid) {
+ case TARGET_CLOCK_REALTIME:
+ gemu_log("CLOCK_REALTIME");
+ break;
+ case TARGET_CLOCK_MONOTONIC:
+ gemu_log("CLOCK_MONOTONIC");
+ break;
+ case TARGET_CLOCK_PROCESS_CPUTIME_ID:
+ gemu_log("CLOCK_PROCESS_CPUTIME_ID");
+ break;
+ case TARGET_CLOCK_THREAD_CPUTIME_ID:
+ gemu_log("CLOCK_THREAD_CPUTIME_ID");
+ break;
+ case TARGET_CLOCK_MONOTONIC_RAW:
+ gemu_log("CLOCK_MONOTONIC_RAW");
+ break;
+ case TARGET_CLOCK_REALTIME_COARSE:
+ gemu_log("CLOCK_REALTIME_COARSE");
+ break;
+ case TARGET_CLOCK_MONOTONIC_COARSE:
+ gemu_log("CLOCK_MONOTONIC_COARSE");
+ break;
+ case TARGET_CLOCK_BOOTTIME:
+ gemu_log("CLOCK_BOOTTIME");
+ break;
+ case TARGET_CLOCK_REALTIME_ALARM:
+ gemu_log("CLOCK_REALTIME_ALARM");
+ break;
+ case TARGET_CLOCK_BOOTTIME_ALARM:
+ gemu_log("CLOCK_BOOTTIME_ALARM");
+ break;
+ case TARGET_CLOCK_SGI_CYCLE:
+ gemu_log("CLOCK_SGI_CYCLE");
+ break;
+ case TARGET_CLOCK_TAI:
+ gemu_log("CLOCK_TAI");
+ break;
+ default:
+ gemu_log("%d", clockid);
+ break;
+ }
+ gemu_log("%s", get_comma(last));
+}
+#endif
+
/*
* Sysycall specific output functions
*/
@@ -1002,6 +1065,19 @@ print_chmod(const struct syscallname *name,
}
#endif
+#ifdef TARGET_NR_clock_adjtime
+static void
+print_clock_adjtime(const struct syscallname *name,
+ abi_long arg0, abi_long arg1, abi_long arg2,
+ abi_long arg3, abi_long arg4, abi_long arg5)
+{
+ print_syscall_prologue(name);
+ print_clockid(arg0, 0);
+ print_pointer(arg1, 1);
+ print_syscall_epilogue(name);
+}
+#endif
+
#ifdef TARGET_NR_clone
static void do_print_clone(unsigned int flags, abi_ulong newsp,
abi_ulong parent_tidptr, target_ulong newtls,
diff --git a/linux-user/strace.list b/linux-user/strace.list
index 44e8322..01aecfc 100644
--- a/linux-user/strace.list
+++ b/linux-user/strace.list
@@ -73,6 +73,9 @@
#ifdef TARGET_NR_chroot
{ TARGET_NR_chroot, "chroot" , NULL, NULL, NULL },
#endif
+#ifdef TARGET_NR_clock_adjtime
+{ TARGET_NR_clock_adjtime, "clock_adjtime" , NULL, print_clock_adjtime, NULL },
+#endif
#ifdef TARGET_NR_clock_getres
{ TARGET_NR_clock_getres, "clock_getres" , NULL, NULL, NULL },
#endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d3fbaec..116fd0c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9506,6 +9506,23 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
}
}
break;
+#if defined(TARGET_NR_clock_adjtime)
+ case TARGET_NR_clock_adjtime:
+ {
+ struct timex host_buf;
+
+ if (target_to_host_timex(&host_buf, arg2) != 0) {
+ goto efault;
+ }
+ ret = get_errno(clock_adjtime(arg1, &host_buf));
+ if (!is_error(ret)) {
+ if (host_to_target_timex(arg2, &host_buf) != 0) {
+ goto efault;
+ }
+ }
+ }
+ break;
+#endif
#ifdef TARGET_NR_create_module
case TARGET_NR_create_module:
#endif
--
2.9.3
- [Qemu-devel] [PATCH v6 00/10] linux-user: Fix assorted Qemu user mode issues, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 01/10] linux-user: Add support for adjtimex() syscall, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 02/10] linux-user: Add support for clock_adjtime() syscall,
Aleksandar Markovic <=
- [Qemu-devel] [PATCH v6 03/10] linux-user: Add support for sysfs() syscall, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 04/10] linux-user: Add support for syncfs() syscall, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 05/10] linux-user: Add support for ustat() syscall, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 06/10] linux-user: Fix mq_open() syscall support, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 07/10] linux-user: Fix msgrcv() and msgsnd() syscalls support, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 08/10] linux-user: Fix socketcall() syscall support, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 09/10] linux-user: Fix syslog() syscall support, Aleksandar Markovic, 2016/09/22
- [Qemu-devel] [PATCH v6 10/10] linux-user: Remove a duplicate item from strace.list, Aleksandar Markovic, 2016/09/22