litmus-rt.git/arch/m32r, branch wip-kernthreads The LITMUS^RT kernel. m32r: test __LITTLE_ENDIAN__ instead of __LITTLE_ENDIAN 2010-10-16T02:37:50+00:00 Kyle McMartin kyle@mcmartin.ca 2010-10-16T01:17:16+00:00 2d019713b7acbc01d769a1e512ca1f9a04c30bd0 Fixes build for me... these are what's tested in byteorder.h... Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Fixes build for me... these are what's tested in byteorder.h...

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: add kernel/.gitignore and ignore vmlinux.lds 2010-10-16T02:37:50+00:00 Kyle McMartin kyle@mcmartin.ca 2010-10-16T01:17:13+00:00 4f515cc93248face6ba45dd296dc3e7381848ab7 Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: get_user takes an lvalue, not a pointer 2010-10-16T02:37:50+00:00 Kyle McMartin kyle@mcmartin.ca 2010-10-16T01:17:09+00:00 388d148fe89cbdd99ec6bcab6cf34480e74c50ee Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Al "my fuckup" Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Al "my fuckup" Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: restore _BLOCKABLE 2010-10-16T02:37:50+00:00 Kyle McMartin kyle@mcmartin.ca 2010-10-16T01:16:45+00:00 99d6734f3ca66c17b81df85724953a9b29eff7cf Commit a7f8388e accidentally removed it... Al explains: "Sorry, reordering breakage. In the signals tree here I have static inline void sig_set_blocked(struct sigset_t *set) ... and it's used all over the place (including quite a few places where we currently have sigprocmask(SIG_SETMASK, set, NULL), which is what it's equivalent to). With that done, m32r doesn't use _BLOCKABLE anywhere, so it got removed. And that chunk got picked when I'd been reordering the queue to pull the arch-specific fixes in front. Sorry." Signed-off-by: Kyle McMartin <kyle@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Commit a7f8388e accidentally removed it... Al explains:

  "Sorry, reordering breakage.  In the signals tree here I have

   static inline void sig_set_blocked(struct sigset_t *set)
   ...

   and it's used all over the place (including quite a few places where
   we currently have sigprocmask(SIG_SETMASK, set, NULL), which is what
   it's equivalent to).  With that done, m32r doesn't use _BLOCKABLE
   anywhere, so it got removed.  And that chunk got picked when I'd been
   reordering the queue to pull the arch-specific fixes in front.
   Sorry."

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: fix breakage from "m32r: use generic ptrace_resume code" 2010-09-24T20:54:19+00:00 Al Viro viro@zeniv.linux.org.uk 2010-09-24T05:25:34+00:00 acdc0d5ef9dd74534fe8df77a2056fa1d911abe5 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: hole in shifting pc back 2010-09-24T20:54:19+00:00 Al Viro viro@zeniv.linux.org.uk 2010-09-24T05:24:53+00:00 bb9c861ee1b94c97cd98c783a2b4c1cf53ff1712 It's a userland pointer; worse, an untrustable one since ptrace has just provided a chance to modify it. X-Roothole-Covering-Cabal: TINRCC Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
It's a userland pointer; worse, an untrustable one since ptrace
has just provided a chance to modify it.

X-Roothole-Covering-Cabal: TINRCC
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: don't block signals if sigframe setup has failed 2010-09-24T20:54:19+00:00 Al Viro viro@zeniv.linux.org.uk 2010-09-24T05:23:57+00:00 a05c4e1d669d09faa90ce7b22646ad1a4b0de3ff Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
make m32r handle multiple pending signals 2010-09-24T20:54:19+00:00 Al Viro viro@zeniv.linux.org.uk 2010-09-24T05:22:30+00:00 a748102430f4dbbfca3ff81ac12db6e4f1243677 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
m32r: fix rt_sigsuspend() 2010-09-24T20:54:19+00:00 Al Viro viro@zeniv.linux.org.uk 2010-09-24T05:20:35+00:00 a7f8388e2c167c73b6abb3b749157aafd08f90ee do_signal() should know about saved_mask for it to work... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
do_signal() should know about saved_mask for it to work...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make do_execve() take a const filename pointer 2010-08-18T01:07:43+00:00 David Howells dhowells@redhat.com 2010-08-17T22:52:56+00:00 d7627467b7a8dd6944885290a03a07ceb28c10eb Make do_execve() take a const filename pointer so that kernel_execve() compiles correctly on ARM: arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type This also requires the argv and envp arguments to be consted twice, once for the pointer array and once for the strings the array points to. This is because do_execve() passes a pointer to the filename (now const) to copy_strings_kernel(). A simpler alternative would be to cast the filename pointer in do_execve() when it's passed to copy_strings_kernel(). do_execve() may not change any of the strings it is passed as part of the argv or envp lists as they are some of them in .rodata, so marking these strings as const should be fine. Further kernel_execve() and sys_execve() need to be changed to match. This has been test built on x86_64, frv, arm and mips. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Make do_execve() take a const filename pointer so that kernel_execve() compiles
correctly on ARM:

arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type

This also requires the argv and envp arguments to be consted twice, once for
the pointer array and once for the strings the array points to.  This is
because do_execve() passes a pointer to the filename (now const) to
copy_strings_kernel().  A simpler alternative would be to cast the filename
pointer in do_execve() when it's passed to copy_strings_kernel().

do_execve() may not change any of the strings it is passed as part of the argv
or envp lists as they are some of them in .rodata, so marking these strings as
const should be fine.

Further kernel_execve() and sys_execve() need to be changed to match.

This has been test built on x86_64, frv, arm and mips.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>