diff options
| author | Bodo Stroesser <bstroesser@fujitsu-siemens.com> | 2005-11-07 00:58:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:31 -0800 |
| commit | 858259cf7d1c443c836a2022b78cb281f0a9b95e (patch) | |
| tree | 7d306450dd0dfa907bbee1d95f96191c67f74232 /arch/um/kernel/skas/process.c | |
| parent | e763b793f7e5c09a859fc420eb0de385d80cf636 (diff) | |
[PATCH] uml: maintain own LDT entries
Patch imlements full LDT handling in SKAS:
* UML holds it's own LDT table, used to deliver data on
modify_ldt(READ)
* UML disables the default_ldt, inherited from the host (SKAS3)
or resets LDT entries, set by host's clib and inherited in
SKAS0
* A new global variable skas_needs_stub is inserted, that
can be used to decide, whether stub-pages must be supported
or not.
* Uses the syscall-stub to replace missing PTRACE_LDT (therefore,
write_ldt_entry needs to be modified)
Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/kernel/skas/process.c')
| -rw-r--r-- | arch/um/kernel/skas/process.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index 42f2da687dc8..599d679bd4fc 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -381,9 +381,9 @@ int copy_context_skas0(unsigned long new_stack, int pid) } /* - * This is used only, if proc_mm is available, while PTRACE_FAULTINFO - * isn't. Opening /proc/mm creates a new mm_context, which lacks the stub-pages - * Thus, we map them using /proc/mm-fd + * This is used only, if stub pages are needed, while proc_mm is + * availabl. Opening /proc/mm creates a new mm_context, which lacks + * the stub-pages. Thus, we map them using /proc/mm-fd */ void map_stub_pages(int fd, unsigned long code, unsigned long data, unsigned long stack) |