On Mon, Mar 30 22:11, Kevin Wolf wrote:
> + kernel: SYSCALL_FASTRPC_WAIT als Kombination von RPC und wait_for_rpc()
> * libc: Neuen Syscall fuer Sync-RPC benutzen
> ---
> src/include/syscallno.h | 1 +
> src/kernel/src/syscall.c | 10 ++++++++++
> src/modules/include/syscall.h | 1 +
> src/modules/lib/rpc/sync.c | 2 +-
> src/modules/lib/syscalls/rpc.c | 21 +++++++++++++++++----
> 5 files changed, 30 insertions(+), 5 deletions(-)
>
> diff --git a/src/modules/lib/syscalls/rpc.c b/src/modules/lib/syscalls/rpc.c
> index 72d4bbc..68cb394 100644
> --- a/src/modules/lib/syscalls/rpc.c
> +++ b/src/modules/lib/syscalls/rpc.c
> @@ -16,8 +16,9 @@ void rpc(dword pid)
> } while (result != 0);
> }
>
> -void send_message
> - (dword pid, dword function, dword correlation_id, dword len, char* data)
> +static inline void do_send_message
> + (dword pid, dword function, dword correlation_id, dword len, char* data,
> + bool wait_for_rpc)
> {
> dword result = 0;
>
> @@ -38,10 +39,22 @@ void send_message
> "mov %1, %%eax;"
> "int $0x30;"
> "add $0x14, %%esp;"
> - : "=a" (result)
> - : "i" (SYSCALL_FASTRPC), "g" (pid), "i" (0x8), "g" (metadata),
> + : "=a" (result)
> + : "i" (wait_for_rpc ? SYSCALL_FASTRPC_WAIT : SYSCALL_FASTRPC),
> + "g" (pid), "i" (0x8), "g" (metadata),
> "g" (len), "g" (data), "0" (result));
>
> } while (result != 0);
> }
Hm wenn ich das mit -O0 kompilieren möchte sagt mir der gcc Folgendes:
rpc.c: In function 'do_send_message':
rpc.c:33: warning: asm operand 1 probably doesn't match constraints
rpc.c:33: error: impossible constraint in 'asm'
>
> +void send_message
> + (dword pid, dword function, dword correlation_id, dword len, char* data)
> +{
> + do_send_message(pid, function, correlation_id, len, data, FALSE);
> +}
> +
> +void send_message_and_wait_for_rpc
> + (dword pid, dword function, dword correlation_id, dword len, char* data)
> +{
> + do_send_message(pid, function, correlation_id, len, data, TRUE);
> +}
> --
> 1.5.6.5
>
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--
Antoine Kaufmann
<toni@xxxxxxxxxxxxxxxx>
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