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Add an 'executable' flag to 'Rm_session::attach()'

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With this patch clients of the RM service can state if they want a mapping
to be executable or not. This allows dataspaces to be mapped as
non-executable on Linux by default and as executable only if needed.

Partially fixes #176.
This commit is contained in:
Christian Prochaska
2012-04-16 18:55:18 +02:00
committed by Norman Feske
parent de92956220
commit 7a369bc74d
26 changed files with 94 additions and 42 deletions
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13
base/include/rm_session/rm_session.h
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@ -117,6 +117,7 @@ namespace Genode {
* \param use_local_addr if set to true, attach the dataspace at
* the specified 'local_addr'
* \param local_addr local destination address
* \param executable if the mapping should be executable
*
* \throw Attach_failed if dataspace or offset is invalid,
* or on region conflict
@ -128,7 +129,8 @@ namespace Genode {
virtual Local_addr attach(Dataspace_capability ds,
size_t size = 0, off_t offset = 0,
bool use_local_addr = false,
Local_addr local_addr = (addr_t)0) = 0;
Local_addr local_addr = (addr_t)0,
bool executable = false) = 0;
/**
* Shortcut for attaching a dataspace at a predefined local address
@ -137,6 +139,13 @@ namespace Genode {
size_t size = 0, off_t offset = 0) {
return attach(ds, size, offset, true, local_addr); }
/**
* Shortcut for attaching a dataspace executable at a predefined local address
*/
Local_addr attach_executable(Dataspace_capability ds, addr_t local_addr,
size_t size = 0, off_t offset = 0) {
return attach(ds, size, offset, true, local_addr, true); }
/**
* Remove region from local address space
*/
@ -179,7 +188,7 @@ namespace Genode {
GENODE_RPC_THROW(Rpc_attach, Local_addr, attach,
GENODE_TYPE_LIST(Invalid_dataspace, Region_conflict,
Out_of_metadata, Invalid_args),
Dataspace_capability, size_t, off_t, bool, Local_addr);
Dataspace_capability, size_t, off_t, bool, Local_addr, bool);
GENODE_RPC(Rpc_detach, void, detach, Local_addr);
GENODE_RPC_THROW(Rpc_add_client, Pager_capability, add_client,
GENODE_TYPE_LIST(Invalid_thread, Out_of_memory),