Peter Oberparleiter
2521f2c228
gcov: add gcov profiling infrastructure ...
Enable the use of GCC's coverage testing tool gcov [1] with the Linux
kernel. gcov may be useful for:
* debugging (has this code been reached at all?)
* test improvement (how do I change my test to cover these lines?)
* minimizing kernel configurations (do I need this option if the
associated code is never run?)
The profiling patch incorporates the following changes:
* change kbuild to include profiling flags
* provide functions needed by profiling code
* present profiling data as files in debugfs
Note that on some architectures, enabling gcc's profiling option
"-fprofile-arcs" for the entire kernel may trigger compile/link/
run-time problems, some of which are caused by toolchain bugs and
others which require adjustment of architecture code.
For this reason profiling the entire kernel is initially restricted
to those architectures for which it is known to work without changes.
This restriction can be lifted once an architecture has been tested
and found compatible with gcc's profiling. Profiling of single files
or directories is still available on all platforms (see config help
text).
[1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.html
Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Li Wei <W.Li@Sun.COM>
Cc: Michael Ellerman <michaele@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-18 13:03:57 -07:00
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
2009-06-14 13:42:43 -07:00
can: sja1000: generic OF platform bus driver
2009-06-01 02:53:35 -07:00
pca953x: support GPIOLIB GPIO naming
2009-06-18 13:03:44 -07:00
isdn: rename capi_ctr_reseted() to capi_ctr_down()
2009-06-08 00:45:50 -07:00
mfd: fix tmio related warnings
2009-06-17 19:41:52 +02:00
IB/mlx4: Add strong ordering to local inval and fast reg work requests
2009-06-05 10:36:24 -07:00
V4L/DVB (11239): sdio: add cards ids for sms (Siano Mobile Silicon) MDTV receivers
2009-06-16 19:14:16 -03:00
UBI: add notification API
2009-06-02 13:53:35 +03:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
2009-06-11 16:00:49 +02:00
switch rqst_exp_parent()
2009-06-11 21:36:00 -04:00
regulator/max1586: support increased V3 voltage range
2009-06-15 11:18:26 +01:00
spi: move more spi_setup() functionality into core
2009-06-18 13:03:42 -07:00
USB: Change names of SuperSpeed ep companion descriptor structs.
2009-06-15 21:44:50 -07:00
wimax/i2400m: rename misleading I2400M_PL_PAD to I2400M_PL_ALIGN
2009-06-11 03:30:20 -07:00
Cleanup of adfs headers
2009-06-17 00:36:36 -04:00
libata: Media rotation rate and form factor heuristics
2009-05-15 14:14:56 -04:00
headers_check fix: linux/auto_fs.h
2009-06-01 06:21:13 +00:00
block: Add bio_list_peek()
2009-06-15 16:47:21 +10:00
block: Introduce helper to reset queue limits to default values
2009-06-16 08:23:52 +02:00
tracing/events: convert block trace points to TRACE_EVENT(), fix !CONFIG_BLOCK
2009-06-10 11:55:06 +02:00
headers: move module_bug_finalize()/module_bug_cleanup() definitions into module.h
2009-06-16 19:47:48 -07:00
c2port: annotate bitfield for kmemcheck
2009-06-15 15:49:34 +02:00
cb710: more cleanup for the DEBUG case.
2009-06-13 22:42:59 +02:00
fs: Remove i_cindex from struct inode
2009-06-11 21:36:09 -04:00
[ARM] 5536/1: Move clk_add_alias() to arch/arm/common/clkdev.c
2009-06-04 17:45:43 +01:00
timers: Logic to move non pinned timers
2009-05-13 16:52:42 +02:00
gcov: add gcov profiling infrastructure
2009-06-18 13:03:57 -07:00
module_param: add __same_type convenience wrapper for __builtin_types_compatible_p
2009-06-12 21:46:57 +09:30
cpumask: introduce zalloc_cpumask_var
2009-06-09 22:30:26 +09:30
cpuset,mm: update tasks' mems_allowed in time
2009-06-16 19:47:31 -07:00
linux/magic.h: move cramfs magic out of cramfs_fs.h
2009-06-11 21:36:10 -04:00
cred: #include init.h in cred.h
2009-05-29 08:40:01 -07:00
tty: cyclades, remove typedefs
2009-06-11 08:50:57 -07:00
dcache: extrace and use d_unlinked()
2009-06-11 21:36:06 -04:00
block: Do away with the notion of hardsect_size
2009-05-22 23:22:54 +02:00
Driver Core: add nodename callbacks
2009-06-15 21:30:25 -07:00
ioatdma: fix "ioatdma frees DMA memory with wrong function"
2009-05-12 14:41:47 -07:00
dnotify: reimplement dnotify using fsnotify
2009-06-11 14:57:53 -04:00
[IA64] Convert ia64 to use int-ll64.h
2009-06-17 09:33:49 -07:00
eisa: remove driver_data direct access of struct device
2009-06-15 21:30:26 -07:00
block: implement and enforce request peek/start/fetch
2009-05-11 09:52:18 +02:00
e1000e: Expose MDI-X status via ethtool change
2009-06-09 05:25:36 -07:00
fbdev: blackfin has __raw I/O accessors, so use them in fb.h
2009-06-16 19:48:01 -07:00
firewire: core: use more outbound tlabels
2009-06-14 14:23:42 +02:00
firmware_map: fix hang with x86/32bit
2009-06-16 19:47:28 -07:00
firmware: FIRMWARE_NAME_MAX removal
2009-06-15 21:30:25 -07:00
Merge branch 'akpm'
2009-06-16 19:50:13 -07:00
mpc52xx_psc_spi: convert to cs_control callback
2009-06-18 13:03:42 -07:00
fsnotify: move events should indicate the event was on a child
2009-06-11 14:57:54 -04:00
inotify: reimplement inotify using fsnotify
2009-06-11 14:57:54 -04:00
tracing: make trace pipe recognize latency format flag
2009-06-01 23:26:02 -04:00
CUSE: implement CUSE - Character device in Userspace
2009-06-09 11:24:11 +02:00
Driver Core: block: add nodename support for block drivers.
2009-06-15 21:30:25 -07:00
Merge branch 'akpm'
2009-06-16 19:50:13 -07:00
HID: add new multitouch and digitizer contants
2009-05-20 15:48:35 +02:00
mm: check the argument of kunmap on architectures without highmem
2009-06-16 19:47:41 -07:00
clocksource: prevent selection of low resolution clocksourse also for nohz=on
2009-06-13 12:00:26 +02:00
mm: introduce PageHuge() for testing huge/gigantic pages
2009-06-16 19:47:36 -07:00
i2c-ocores: Can add I2C devices to the bus
2009-06-13 10:39:28 +01:00
i7300_idle: allow testing on i5000-series hardware w/o re-compile
2009-05-28 20:52:40 -04:00
Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
2009-06-11 10:00:03 -07:00
cfg80211: use key size constants
2009-06-03 14:05:10 -04:00
net: release dst entry in dev_hard_start_xmit()
2009-05-18 22:19:19 -07:00
Add constants for the ieee 802.15.4 stack
2009-06-09 05:25:30 -07:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2009-06-15 03:02:23 -07:00
af_packet: Teach to listen for multiple unicast addresses.
2009-05-21 15:13:39 -07:00
sit: stateless autoconf for isatap
2009-05-19 16:02:02 -07:00
integrity: path_check update
2009-05-22 09:43:41 +10:00
ipv4: New multicast-all socket option
2009-06-02 00:45:24 -07:00
kernel: constructor support
2009-06-18 13:03:57 -07:00
mm: consolidate init_mm definition
2009-06-16 19:47:28 -07:00
Input: multitouch - add tracking ID to the protocol
2009-05-23 09:53:18 -07:00
Merge commit 'linus/master' into HEAD
2009-06-15 15:50:49 +02:00
block: prevent possible io_context->refcount overflow
2009-06-10 23:07:15 +02:00
ipcns: move free_ipcs() proto
2009-06-18 13:03:56 -07:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters
2009-06-01 03:07:33 -07:00
x86: remove some alloc_bootmem_cpumask_var calling
2009-06-11 19:27:07 +03:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2009-06-15 03:02:23 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
2009-06-16 12:57:37 -07:00
softirq: introduce statistics for softirq
2009-06-18 13:03:40 -07:00
keyboard: advertise KT_DEAD2 extended diacriticals
2009-06-14 13:50:36 -07:00
kmemcheck: introduce bitfield API
2009-06-15 15:49:23 +02:00
kmemleak: Add the base support
2009-06-11 17:03:28 +01:00
KVM: Make kvm header C++ friendly
2009-06-10 11:48:39 +03:00
KVM: protect assigned dev workqueue, int handler and irq acker
2009-06-10 11:48:53 +03:00
KVM: APIC: get rid of deliver_bitmask
2009-06-10 11:48:27 +03:00
lguest: improve interrupt handling, speed up stream networking
2009-06-12 22:27:03 +09:30
lguest: remove obsolete LHREQ_BREAK call
2009-06-12 22:27:11 +09:30
fbdev: move logo externs to header file
2009-06-16 19:47:57 -07:00
lis3: add click function
2009-06-16 19:47:57 -07:00
list_nulls: add hlist_nulls_add_head and hlist_nulls_del
2009-06-13 12:28:57 +02:00
linux/magic.h: move cramfs magic out of cramfs_fs.h
2009-06-11 21:36:10 -04:00
drbd: add major number to major.h
2009-06-16 19:47:48 -07:00
mdio: Expose 10GBASE-T MDI-X status via ethtool
2009-06-11 02:47:10 -07:00
memcg: add file-based RSS accounting
2009-06-18 13:03:47 -07:00
mg_disk: seperate mg_disk.h again
2009-06-16 08:40:20 +02:00
Driver Core: misc: add nodename support for misc devices.
2009-06-15 21:30:25 -07:00
mISDN: Add XHFC support for embedded Speech-Design board to hfcmulti
2009-05-25 00:55:30 -07:00
mISDN: cleanup mISDNhw.h
2009-06-11 19:05:32 +02:00
mISDN: Cleanup debug messages
2009-05-25 00:55:45 -07:00
mm cleanup: shmem_file_setup: 'char *' -> 'const char *' for name argument
2009-06-16 19:47:44 -07:00
Merge branch 'akpm'
2009-06-16 19:50:13 -07:00
mm: remove CONFIG_UNEVICTABLE_LRU config option
2009-06-16 19:47:42 -07:00
kernel: constructor support
2009-06-18 13:03:57 -07:00
module_param: allow 'bool' module_params to be bool, not just int.
2009-06-12 21:46:58 +09:30
fs: introduce mnt_clone_write
2009-06-11 21:36:02 -04:00
switch follow_down()
2009-06-11 21:36:01 -04:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2009-06-15 03:02:23 -07:00
netdevice.h: Use frag list abstraction interfaces.
2009-06-09 00:17:27 -07:00
nl80211: Add RSC configuration for new keys
2009-05-13 15:44:39 -04:00
net: add NL802154 interface for configuration of 802.15.4 devices
2009-06-09 05:25:33 -07:00
NLS: update handling of Unicode
2009-06-15 21:44:43 -07:00
page allocator: use a pre-calculated value instead of num_online_nodes() in fast paths
2009-06-16 19:47:35 -07:00
net: introduce pre-up netdev notifier
2009-06-03 14:05:12 -04:00
Merge branches 'slab/documentation', 'slab/fixes', 'slob/cleanups' and 'slub/fixes' into for-linus
2009-06-17 08:30:15 +03:00
memcg: fix page_cgroup fatal error in FLATMEM
2009-06-12 11:00:54 +03:00
mm: remove CONFIG_UNEVICTABLE_LRU config option
2009-06-16 19:47:42 -07:00
parport: quickfix the proc registration bug
2009-06-02 09:53:22 -07:00
PCI: add power-state name strings
2009-06-15 21:44:44 -07:00
USB: xhci: BIOS handoff and HW initialization.
2009-06-15 21:44:48 -07:00
kmemleak: Remove some of the kmemleak false positives
2009-06-11 17:04:18 +01:00
perf_counter: Add forward/backward attribute ABI compatibility
2009-06-12 14:28:52 +02:00
phy: Eliminate references to BUS_ID_SIZE.
2009-05-26 21:16:25 -07:00
splice: implement default splice_read method
2009-05-11 14:13:10 +02:00
driver core: Const-correct platform getbyname functions
2009-06-15 21:30:24 -07:00
PM core: rename suspend and resume functions
2009-06-12 21:32:31 +02:00
pnp: add PNP resource range checking function
2009-06-05 14:37:41 +00:00
poll: avoid extra wakeups in select/poll
2009-06-16 19:47:48 -07:00
Move junk from proc_fs.h to fs/proc/internal.h
2009-06-11 21:36:01 -04:00
ptrace_get_task_struct: s/tasklist/rcu/, make it static
2009-06-18 13:03:51 -07:00
fs/qnx4: sanitize includes
2009-06-11 21:36:12 -04:00
quota: Introduce writeout_quota_sb() (version 4)
2009-06-11 21:36:04 -04:00
radix-tree: add radix_tree_prev_hole()
2009-06-16 19:47:30 -07:00
lib: isolate rational fractions helper function
2009-06-11 08:51:08 -07:00
reiserfs: fix warnings with gcc 4.4
2009-06-18 13:03:46 -07:00
reiserfs: allow exposing privroot w/ xattrs enabled
2009-06-11 21:35:58 -04:00
reiserfs: fixup perms when xattrs are disabled
2009-05-17 11:45:45 -07:00
memcg: add interface to reset limits
2009-06-18 13:03:48 -07:00
rfkill: don't impose global states on resume (just restore the previous states)
2009-06-10 13:28:37 -04:00
trace: annotate bitfields in struct ring_buffer_event
2009-06-15 15:49:37 +02:00
vmscan: report vm_flags in page_referenced()
2009-06-16 19:47:44 -07:00
pids: clean up find_task_by_pid variants
2009-06-18 13:03:55 -07:00
sctp: fix error cause codes of ADD-IP extension
2009-06-03 09:14:45 -04:00
security: use mmap_min_addr indepedently of security models
2009-06-04 12:07:48 +10:00
seq_file: add function to write binary data
2009-06-18 13:03:57 -07:00
serial: refactor ASYNC_ flags
2009-06-11 08:50:58 -07:00
serial: Added Timberdale UART driver
2009-06-11 08:51:06 -07:00
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck
2009-06-16 13:09:51 -07:00
Merge commit 'linus/master' into HEAD
2009-06-15 15:50:49 +02:00
slab: move struct kmem_cache to headers
2009-06-13 08:58:43 +02:00
slab,slub: don't enable interrupts during early boot
2009-06-12 18:53:33 +03:00
slab,slub: don't enable interrupts during early boot
2009-06-12 18:53:33 +03:00
remove put_cpu_no_resched()
2009-06-16 19:47:48 -07:00
Add constants for the ieee 802.15.4 stack
2009-06-09 05:25:30 -07:00
spinlock: Add missing __raw_spin_lock_flags() stub for UP
2009-06-10 11:48:14 +02:00
splice: fix misleading comment
2009-05-12 11:11:48 +02:00
stacktrace: add forward-declaration struct task_struct
2009-06-12 23:04:12 +02:00
PM/Hibernate: Move NVS routines into a seperate file (v2).
2009-06-12 21:32:33 +02:00
memcg: fix swap accounting
2009-06-18 13:03:47 -07:00
syscalls.h: remove duplicated declarations for sys_pipe2
2009-06-16 19:47:52 -07:00
clocksource: prevent selection of low resolution clocksourse also for nohz=on
2009-06-13 12:00:26 +02:00
timers: Framework for identifying pinned timers
2009-05-13 16:52:42 +02:00
time: move PIT_TICK_RATE to linux/timex.h
2009-06-16 19:47:27 -07:00
tracing: add trace_seq_vprint interface
2009-06-09 15:17:32 -04:00
ptrace: tracehook_unsafe_exec(): remove the stale comment
2009-06-18 13:03:49 -07:00
debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.
2009-06-15 21:30:28 -07:00
tty: rewrite the ldisc locking
2009-06-11 08:51:01 -07:00
tty: throttling race fix
2009-06-11 08:50:59 -07:00
Trivial: fix typo s/balence/balance/
2009-06-12 18:01:45 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
2009-06-16 13:06:10 -07:00
utsname.h: make new_utsname fields use the proper length constant
2009-06-16 19:47:47 -07:00
V4L/DVB (11970): gspca - ov519: Add support for the ov518 bridge.
2009-06-16 19:07:42 -03:00
virtio: add names to virtqueue struct, mapping from devices to queues.
2009-06-12 22:16:36 +09:30
Add serial number support for virtio_blk, V4a
2009-06-09 14:41:40 +02:00
virtio: teach virtio_has_feature() about transport features
2009-06-12 22:16:38 +09:30
virtio_pci: optional MSI-X support
2009-06-12 22:16:37 +09:30
virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC)
2009-06-12 22:16:39 +09:30
drivers: add support for the TI VLYNQ bus
2009-06-16 19:47:52 -07:00
vmscan: count the number of times zone_reclaim() scans and fails
2009-06-16 19:47:46 -07:00
Merge commit 'v2.6.30-rc5' into sched/core
2009-05-11 12:59:37 +02:00
wimax: a new API call was added, increment minor protocol version number
2009-05-28 18:02:32 -07:00
vfs: Make sys_sync() use fsync_super() (version 4)
2009-06-11 21:36:03 -04:00
