Steven Rostedt 3d56e331b6 tracing: Replace syscall_meta_data struct array with pointer array ... Currently the syscall_meta structures for the syscall tracepoints are placed in the __syscall_metadata section, and at link time, the linker makes one large array of all these syscall metadata structures. On boot up, this array is read (much like the initcall sections) and the syscall data is processed. The problem is that there is no guarantee that gcc will place complex structures nicely together in an array format. Two structures in the same file may be placed awkwardly, because gcc has no clue that they are suppose to be in an array. A hack was used previous to force the alignment to 4, to pack the structures together. But this caused alignment issues with other architectures (sparc). Instead of packing the structures into an array, the structures' addresses are now put into the __syscall_metadata section. As pointers are always the natural alignment, gcc should always pack them tightly together (otherwise initcall, extable, etc would also fail). By having the pointers to the structures in the section, we can still iterate the trace_events without causing unnecessary alignment problems with other architectures, or depending on the current behaviour of gcc that will likely change in the future just to tick us kernel developers off a little more. The __syscall_metadata section is also moved into the .init.data section as it is now only needed at boot up. Suggested-by: David Miller <davem@davemloft.net> Acked-by: David S. Miller <davem@davemloft.net> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2011-02-03 09:29:06 -05:00
..
bitops	bitops: remove duplicated extern declarations	2010-10-09 21:51:45 +02:00
4level-fixup.h	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
atomic64.h	lib: Provide generic atomic64_t implementation	2009-06-15 13:27:38 +10:00
atomic-long.h	asm-generic: merge branch 'master' of torvalds/linux-2.6	2009-06-12 11:32:58 +02:00
atomic.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic	2010-10-22 11:17:06 -07:00
audit_change_attr.h	audit: make link()/linkat() match "attribute change" predicate	2010-10-30 08:45:43 -04:00
audit_dir_write.h	[PATCH] fix missing ifdefs in syscall classes hookup for generic targets	2006-09-22 17:48:56 -07:00
audit_read.h	[PATCH] audit: more syscall classes added	2006-09-11 13:32:27 -04:00
audit_signal.h	[PATCH] add SIGNAL syscall class (v3)	2007-05-11 05:38:25 -04:00
audit_write.h	[PATCH] asm/generic: fix bug - kernel fails to build when enable some common audit code on Blackfin	2008-12-09 02:27:39 -05:00
auxvec.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
bitops.h	asm-generic: make bitops.h usable	2009-06-11 21:02:31 +02:00
bitsperlong.h	asm-generic: introduce asm/bitsperlong.h	2009-06-11 21:02:14 +02:00
bug.h	panic: Allow warnings to set different taint flags	2010-05-19 08:36:48 +01:00
bugs.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
cache.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
cacheflush.h	block: add helpers to run flush_dcache_page() against a bio and a request's pages	2009-11-26 09:16:19 +01:00
checksum.h	add generic lib/checksum.c	2009-06-11 21:02:51 +02:00
cmpxchg-local.h	Fix IRQ flag handling naming	2010-10-07 14:08:55 +01:00
cmpxchg.h	Add cmpxchg_local to asm-generic for per cpu atomic operations	2008-02-07 08:42:30 -08:00
cputime.h	taskstats: use real microsecond granularity for CPU times	2010-10-27 18:03:17 -07:00
current.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
delay.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
device.h	Driver Core: Add platform device arch data V3	2009-07-22 00:28:38 +02:00
div64.h	rename div64_64 to div64_u64	2008-05-01 08:03:58 -07:00
dma-coherent.h	generic: per-device coherent dma allocator	2008-06-30 12:51:05 +02:00
dma-mapping-broken.h	dma-mapping: remove dma_is_consistent API	2010-08-11 08:59:21 -07:00
dma-mapping-common.h	dma-mapping: remove unnecessary sync_single_range_* in dma_map_ops	2010-05-27 09:12:52 -07:00
dma.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
emergency-restart.h	[PATCH] Add emergency_restart()	2005-07-26 14:35:41 -07:00
errno-base.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
errno.h	cfg80211: add rfkill support	2009-06-03 14:06:14 -04:00
fb.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
fcntl.h	asm-generic: fcntl: make exported headers use strict posix types	2010-10-09 21:51:43 +02:00
futex.h	remove __KERNEL__ tests of unexported headers under asm-generic/	2008-04-30 08:29:54 -07:00
getorder.h	asm-generic: rename page.h and uaccess.h	2009-06-11 21:02:17 +02:00
gpio.h	Revert "gpiolib: annotate gpio-intialization with __must_check"	2011-01-13 17:26:46 -08:00
hardirq.h	Fix IRQ flag handling naming	2010-10-07 14:08:55 +01:00
hw_irq.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
ide_iops.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
int-l64.h	asm-generic: introduce asm/bitsperlong.h	2009-06-11 21:02:14 +02:00
int-ll64.h	asm-generic: introduce asm/bitsperlong.h	2009-06-11 21:02:14 +02:00
io.h	asm-generic/io.h: add reads[bwl]/writes[bwl] helpers	2011-01-10 07:18:03 -05:00
ioctl.h	Make ioctl.h compatible with userland	2008-08-12 16:07:31 -07:00
ioctls.h	TTY: Add tty ioctl to figure device node of the system console.	2010-12-16 16:18:28 -08:00
iomap.h	generic: add ioremap_wc() interface wrapper	2008-04-24 23:40:47 +02:00
ipcbuf.h	asm-generic: add generic sysv ipc headers	2009-06-11 21:02:15 +02:00
irq_regs.h	core: Replace __get_cpu_var with __this_cpu_read if not used for an address.	2010-12-17 15:07:19 +01:00
irq.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
irqflags.h	Fix IRQ flag handling naming	2010-10-07 14:08:55 +01:00
Kbuild	include: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
Kbuild.asm	include: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
kdebug.h	asm-generic: kdebug.h: Checkpatch cleanup	2010-10-09 21:51:44 +02:00
kmap_types.h	include/asm-generic/kmap_types.h: add helpful reminder	2010-05-25 08:07:03 -07:00
libata-portmap.h	libata-portmap: Remove unused definitions	2007-10-12 14:55:37 -04:00
linkage.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
local64.h	arch: Implement local64_t	2010-06-09 11:12:36 +02:00
local.h	local_t: Remove cpu_local_xx macros	2010-01-05 15:34:49 +09:00
memory_model.h	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
mm_hooks.h	[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction	2007-05-02 19:27:14 +02:00
mman-common.h	thp: mm: define MADV_NOHUGEPAGE	2011-01-13 17:32:47 -08:00
mman.h	mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions	2009-09-22 07:17:41 -07:00
mmu_context.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
mmu.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
module.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
msgbuf.h	asm-generic: add generic sysv ipc headers	2009-06-11 21:02:15 +02:00
mutex-dec.h	mutex: speed up generic mutex implementations	2008-10-23 09:18:20 -07:00
mutex-null.h	fix file specification in comments	2006-10-03 23:01:26 +02:00
mutex-xchg.h	mutex: speed up generic mutex implementations	2008-10-23 09:18:20 -07:00
mutex.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
page.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
param.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
parport.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
pci-dma-compat.h	dma-mapping: pci: move pci_set_dma_mask and pci_set_consistent_dma_mask to pci-dma-compat.h	2010-03-12 15:52:42 -08:00
pci.h	PCI: remove pcibios_scan_all_fns()	2009-09-09 13:29:18 -07:00
percpu.h	percpu: Optimize __get_cpu_var()	2010-09-10 10:56:51 +02:00
pgalloc.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
pgtable-nopmd.h	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
pgtable-nopud.h	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
pgtable.h	fix non-x86 build failure in pmdp_get_and_clear	2011-01-16 15:05:44 -08:00
poll.h	Consolidate asm/poll.h	2007-05-11 08:29:34 -07:00
posix_types.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
resource.h	sched: SCHED_FIFO/SCHED_RR watchdog timer	2008-01-25 21:08:27 +01:00
rtc.h	asm-generic: make get_rtc_time overridable	2009-06-11 21:02:18 +02:00
scatterlist.h	asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h	2010-05-27 09:12:54 -07:00
sections.h	asm/sections: add text/data checking functions for arches to override	2009-09-23 07:39:30 -07:00
segment.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
sembuf.h	asm-generic: add generic sysv ipc headers	2009-06-11 21:02:15 +02:00
serial.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
setup.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
shmbuf.h	asm-generic: add generic sysv ipc headers	2009-06-11 21:02:15 +02:00
shmparam.h	asm-generic: add generic sysv ipc headers	2009-06-11 21:02:15 +02:00
siginfo.h	HWPOISON: Add new SIGBUS error codes for hardware poison signals	2009-09-16 11:50:06 +02:00
signal-defs.h	asm-generic: rename termios.h, signal.h and mman.h	2009-06-11 21:01:52 +02:00
signal.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
socket.h	net: Generalize socket rx gap / receive queue overflow cmsg	2009-10-12 13:26:31 -07:00
sockios.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
spinlock.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
stat.h	asm-generic/stat.h: support 64-bit file time_t for stat()	2010-11-01 15:31:29 -04:00
statfs.h	add f_flags to struct statfs(64)	2010-08-09 16:48:44 -04:00
string.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
swab.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
syscall.h	asm-generic: syscall_get_nr returns int	2009-09-22 19:56:50 -07:00
syscalls.h	Fix the declaration of sys_execve() in asm-generic/syscalls.h	2010-08-18 12:12:38 -07:00
system.h	asm-generic: cmpxchg does not handle non-long arguments	2010-10-09 21:51:27 +02:00
termbits.h	tty: Add EXTPROC support for LINEMODE	2010-08-10 13:47:39 -07:00
termios-base.h	asm-generic: rename termios.h, signal.h and mman.h	2009-06-11 21:01:52 +02:00
termios.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
timex.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
tlb.h	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
tlbflush.h	asm-generic: add generic NOMMU versions of some headers	2009-06-11 21:02:50 +02:00
topology.h	topology: alternate fix for ia64 tiger_defconfig build breakage	2010-08-09 20:44:57 -07:00
types.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
uaccess-unaligned.h	asm-generic: rename page.h and uaccess.h	2009-06-11 21:02:17 +02:00
uaccess.h	asm-generic: uaccess: fix up local access_ok() usage	2009-06-19 14:58:08 +02:00
ucontext.h	asm-generic: add generic ABI headers	2009-06-11 21:02:15 +02:00
unaligned.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
unistd.h	Add fanotify syscalls to <asm-generic/unistd.h>.	2010-08-13 08:08:37 -04:00
user.h	asm-generic: add generic versions of common headers	2009-06-11 21:02:37 +02:00
vga.h	asm-generic: add legacy I/O header files	2009-06-11 21:02:42 +02:00
vmlinux.lds.h	tracing: Replace syscall_meta_data struct array with pointer array	2011-02-03 09:29:06 -05:00
xor.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00