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2009-07-09linker script: unify usage of discard definitionTejun Heo
Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Michal Simek <monstr@monstr.eu> Cc: linux-arch@vger.kernel.org Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com>
2009-06-25UML: Fix some apparent bitrotPaul Menage
UML: Fix some apparent bitrot - migration of net_device methods into net_device_ops - dma_sync_single() changes Signed-off-by: Paul Menage <menage@google.com> Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com> -- This version is split from my earlier patch, including just the portions that ar required for Linus' tree. Fixes the following compile errors: include/linux/dma-mapping.h:113: error: redefinition of 'dma_sync_single' arch/um/include/asm/dma-mapping.h:84: error: previous definition of 'dma_sync_single' was here include/linux/dma-mapping.h: In function 'dma_sync_single': include/linux/dma-mapping.h:117: error: implicit declaration of function 'dma_sync_single_for_cpu' include/linux/dma-mapping.h: At top level: include/linux/dma-mapping.h:120: error: redefinition of 'dma_sync_sg' arch/um/include/asm/dma-mapping.h:91: error: previous definition of 'dma_sync_sg' was here include/linux/dma-mapping.h: In function 'dma_sync_sg': include/linux/dma-mapping.h:124: error: implicit declaration of function 'dma_sync_sg_for_cpu' arch/um/drivers/slirp_kern.c: In function 'slirp_init': arch/um/drivers/slirp_kern.c:35: error: 'struct net_device' has no member named 'init' Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: add generic lib/checksum.c asm-generic: add a generic uaccess.h asm-generic: add generic NOMMU versions of some headers asm-generic: add generic atomic.h and io.h asm-generic: add legacy I/O header files asm-generic: add generic versions of common headers asm-generic: make bitops.h usable asm-generic: make pci.h usable directly asm-generic: make get_rtc_time overridable asm-generic: rename page.h and uaccess.h asm-generic: rename atomic.h to atomic-long.h asm-generic: add a generic unistd.h asm-generic: add generic ABI headers asm-generic: add generic sysv ipc headers asm-generic: introduce asm/bitsperlong.h asm-generic: rename termios.h, signal.h and mman.h
2009-06-12PM: Remove unused asm/suspend.hMagnus Damm
This patch removes unused asm/suspend.h files for the following architectures: alpha, arm, ia64, m68k, mips, s390, um Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-06-12module: merge module_alloc() finallyAmerigo Wang
As Christoph Hellwig suggested, module_alloc() actually can be unified for i386 and x86_64 (of course, also UML). Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: 'Ingo Molnar' <mingo@elte.hu> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-11asm-generic: rename page.h and uaccess.hArnd Bergmann
The current asm-generic/page.h only contains the get_order function, and asm-generic/uaccess.h only implements unaligned accesses. This renames the file to getorder.h and uaccess-unaligned.h to make room for new page.h and uaccess.h file that will be usable by all simple (e.g. nommu) architectures. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-04-02Merge branch 'tracing/core-v2' into tracing-for-linusIngo Molnar
Conflicts: include/linux/slub_def.h lib/Kconfig.debug mm/slob.c mm/slub.c
2009-04-01uml: remove useless commentsWANG Cong
These comments are useless now, remove them. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-02tracing: make CALLER_ADDRx overwriteableUwe Kleine-Koenig
The current definition of CALLER_ADDRx isn't suitable for all platforms. E.g. for ARM __builtin_return_address(N) doesn't work for N > 0 and AFAIK for powerpc there are no frame pointers needed to have a working __builtin_return_address. This patch allows defining the CALLER_ADDRx macros in <asm/ftrace.h> and let these take precedence. Because now <asm/ftrace.h> is included unconditionally in <linux/ftrace.h> all archs that don't already had this include get an empty one for free. Signed-off-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
2009-01-05uml got broken by commit 30742d5c2277c325fb0e9d2d817d55a19995fe8fAl Viro
... if you revert a commit, revert the fixups elsewhere that had been triggered by it. Such as 8c56250f48347750c82ab18d98d647dcf99ca674 (lockdep, UML: fix compilation when CONFIG_TRACE_IRQFLAGS_SUPPORT is not set). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-28Merge commit 'v2.6.28-rc2' into core/lockingIngo Molnar
Conflicts: arch/um/include/asm/system.h
2008-10-22x86, um: get rid of header symlinksAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: trim the junk from uml ptrace-*.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: take vm-flags.h to sysdepAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of uml asm/archAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of uml highmem.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of uml unistd.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of system.h -> system.h includeAl Viro
Long-term we want to split system.h and include barriers part from underlying target; for now copy that part to sysdep. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: uml atomic.h is not needed anymoreAl Viro
Its only difference from underlying atomic.h used to be the include of kernel.h; it's not needed there anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: untangle uml ldt.hAl Viro
* turn asm/ldt.h into ldt.h; update the (very few) users * take host_ldt.h into sysdep, kill symlink mess * includes of asm/arch/ldt.h turn into asm/ldt.h now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of more uml asm/arch usesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: remove dead header (uml module-generic.h; never used these days)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: get rid of uml signal.hAl Viro
the only theoretical reason for it these days is ppc; aside of uml/ppc being dead, do_signal() would be happier in arch/powerpc/kernel/signal.h anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: sanitize uml sigcontext.h usesAl Viro
a) the only difference between sigcontext and sysdep/sigcontext is that the former contains externs for two long-dead functions. Removed, switched the only user to sysdep/sigcontext b) asm/sigcontext.h is removable - that of underlying architecture would get used. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: now we can get rid of trivial uml headersAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22x86, um: initial part of asm-um moveAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>