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base: separate native CPU from CPU session

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This patch unifies the CPU session interface across all platforms. The
former differences are moved to respective "native-CPU" interfaces.

NOVA is not covered by the patch and still relies on a custom version of
the core-internal 'cpu_session_component.h'. However, this will soon be
removed once the ongoing rework of pause/single-step on NOVA is
completed.

Fixes #1922
This commit is contained in:
Norman Feske
2016-03-30 15:34:37 +02:00
committed by Christian Helmuth
parent e9dec93f4b
commit 0c299c5e08
63 changed files with 668 additions and 1207 deletions
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27
repos/base-linux/src/lib/lx_hybrid/lx_hybrid.cc
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@ -15,7 +15,7 @@
#include <base/printf.h>
#include <base/component.h>
#include <linux_syscalls.h>
#include <linux_cpu_session/linux_cpu_session.h>
#include <linux_native_cpu/client.h>
/* base-internal includes */
#include <base/internal/native_thread.h>
@ -336,23 +336,6 @@ namespace Genode {
}
/**
* Return Linux-specific extension of the Env::CPU session interface
*/
Linux_cpu_session *cpu_session(Cpu_session * cpu_session)
{
Linux_cpu_session *cpu = dynamic_cast<Linux_cpu_session *>(cpu_session);
if (!cpu) {
PERR("could not obtain Linux extension to CPU session interface");
struct Could_not_access_linux_cpu_session { };
throw Could_not_access_linux_cpu_session();
}
return cpu;
}
static void adopt_thread(Native_thread::Meta_data *meta_data)
{
lx_sigaltstack(signal_stack, sizeof(signal_stack));
@ -487,10 +470,10 @@ Thread_base::Thread_base(size_t weight, const char *name, size_t stack_size,
native_thread().meta_data->wait_for_construction();
Linux_cpu_session *cpu = cpu_session(_cpu_session);
_thread_cap = _cpu_session->create_thread(weight, name);
_thread_cap = cpu->create_thread(weight, name);
cpu->thread_id(_thread_cap, native_thread().pid, native_thread().tid);
Linux_native_cpu_client native_cpu(_cpu_session->native_cpu());
native_cpu.thread_id(_thread_cap, native_thread().pid, native_thread().tid);
}
@ -526,5 +509,5 @@ Thread_base::~Thread_base()
_native_thread = nullptr;
/* inform core about the killed thread */
cpu_session(_cpu_session)->kill_thread(_thread_cap);
_cpu_session->kill_thread(_thread_cap);
}