diff options
Diffstat (limited to 'microkernel/mach/gnumach')
| -rw-r--r-- | microkernel/mach/gnumach/interface.mdwn | 10 | ||||
| -rw-r--r-- | microkernel/mach/gnumach/interface/task_set_name.mdwn | 22 |
2 files changed, 32 insertions, 0 deletions
diff --git a/microkernel/mach/gnumach/interface.mdwn b/microkernel/mach/gnumach/interface.mdwn index bfcb9ea6..6f50a83d 100644 --- a/microkernel/mach/gnumach/interface.mdwn +++ b/microkernel/mach/gnumach/interface.mdwn @@ -18,7 +18,17 @@ show=title]] # Proposed +<a name="futex"> ## Futex +</a> + +Add a futex kernel trap to GNU Mach. +This can be useful for nicer locking +primitives, including inter-process primitives. `vm_allocate` can be used as an +example in the `gnumach` source tree for how to add a kernel trap. + + +### [[!GNU_Savannah_task 6231]] ### Patches on bug-hurd diff --git a/microkernel/mach/gnumach/interface/task_set_name.mdwn b/microkernel/mach/gnumach/interface/task_set_name.mdwn new file mode 100644 index 00000000..c32a24ff --- /dev/null +++ b/microkernel/mach/gnumach/interface/task_set_name.mdwn @@ -0,0 +1,22 @@ +[[!meta copyright="Copyright © 2013, 2014 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +/!\ Does this actually reflect reality? + +[[!tag open_issue_documentation open_issue_gnumach]] + +A `task_set_name` RPC has been added to GNU Mach. Before, the Mach debugger +looked for `arg[0]` on the stack using ugly heuristics (see +`gnumach/i386/i386/db_interface.c`, `looks_like_command`...). Now we can let +`exec` simply set the name and record it in `task_t`. After adding the RPC, +glibc needs to be recompiled against the updated `mach.defs` to get access to +it from userland, and exec would probably call it from `hurd/exec/exec.c`, +`do_exec()`. Also see the discussion on +[[open_issues/translate_fd_or_port_to_file_name]]. |