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Re: [Qemu-devel] [PATCH v3 22/50] *-user: plugin syscalls
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH v3 22/50] *-user: plugin syscalls |
Date: |
Mon, 01 Jul 2019 15:20:07 +0100 |
User-agent: |
mu4e 1.3.2; emacs 26.1 |
Pranith Kumar <address@hidden> writes:
> Minor nits.
>
> On Fri, Jun 14, 2019 at 11:41 AM Alex Bennée <address@hidden> wrote:
>>
>> From: "Emilio G. Cota" <address@hidden>
>>
>> Signed-off-by: Emilio G. Cota <address@hidden>
>> ---
>> bsd-user/syscall.c | 9 +++++++++
>> linux-user/syscall.c | 3 +++
>> 2 files changed, 12 insertions(+)
>>
>> diff --git a/bsd-user/syscall.c b/bsd-user/syscall.c
>> index 84a983a9a1..50e47d217c 100644
>> --- a/bsd-user/syscall.c
>> +++ b/bsd-user/syscall.c
>> @@ -323,6 +323,8 @@ abi_long do_freebsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> gemu_log("freebsd syscall %d\n", num);
>> #endif
>> trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> arg7, arg8);
>> + qemu_plugin_vcpu_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> arg7,
>> + arg8);
>
> Looking at the previous line, seems like you can avoid splitting this
> line into 2. Keeps it more consistent that way.
Technically the trace line is over-long... I can make them both
consistent with each other but it would be nicer to wrap them both into
a common function.
Unfortunately this seems a little tricky for *-user as they are kept
pretty separate.
>
>> if(do_strace)
>> print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
>>
>> @@ -404,6 +406,7 @@ abi_long do_freebsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> if (do_strace)
>> print_freebsd_syscall_ret(num, ret);
>> trace_guest_user_syscall_ret(cpu, num, ret);
>> + qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
>> return ret;
>> efault:
>> ret = -TARGET_EFAULT;
>> @@ -422,6 +425,8 @@ abi_long do_netbsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> gemu_log("netbsd syscall %d\n", num);
>> #endif
>> trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> 0, 0);
>> + qemu_plugin_vcpu_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> 0,
>> + 0);
>
> ditto.
>
>> if(do_strace)
>> print_netbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
>>
>> @@ -480,6 +485,7 @@ abi_long do_netbsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> if (do_strace)
>> print_netbsd_syscall_ret(num, ret);
>> trace_guest_user_syscall_ret(cpu, num, ret);
>> + qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
>> return ret;
>> efault:
>> ret = -TARGET_EFAULT;
>> @@ -498,6 +504,8 @@ abi_long do_openbsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> gemu_log("openbsd syscall %d\n", num);
>> #endif
>> trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> 0, 0);
>> + qemu_plugin_vcpu_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> 0,
>> + 0);
>
> ditto.
>
>> if(do_strace)
>> print_openbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
>>
>> @@ -556,6 +564,7 @@ abi_long do_openbsd_syscall(void *cpu_env, int num,
>> abi_long arg1,
>> if (do_strace)
>> print_openbsd_syscall_ret(num, ret);
>> trace_guest_user_syscall_ret(cpu, num, ret);
>> + qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
>> return ret;
>> efault:
>> ret = -TARGET_EFAULT;
>> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
>> index b187c1281d..7f3cfdee84 100644
>> --- a/linux-user/syscall.c
>> +++ b/linux-user/syscall.c
>> @@ -11724,6 +11724,8 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
>> arg1,
>>
>> trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
>> arg5, arg6, arg7, arg8);
>> + qemu_plugin_vcpu_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6,
>> arg7,
>> + arg8);
>
> This I am not sure.
>
>
>>
>> if (unlikely(do_strace)) {
>> print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
>> @@ -11736,5 +11738,6 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
>> arg1,
>> }
>>
>> trace_guest_user_syscall_ret(cpu, num, ret);
>> + qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
>> return ret;
>> }
>> --
>> 2.20.1
>>
>>
--
Alex Bennée
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