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Peter Zijlstra 8b5fa6bc32 objtool: Optimize read_sections() 
Perf showed that __hash_init() is a significant portion of
read_sections(), so instead of doing a per section rela_hash, use an
elf-wide rela_hash.

Statistics show us there are about 1.1 million relas, so size it
accordingly.

This reduces the objtool on vmlinux.o runtime to a third, from 15 to 5
seconds.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20200324160924.739153726@infradead.org
2020-03-25 18:28:30 +01:00
..
accounting
…
arch
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-31 11:05:33 -08:00
bootconfig
tools/bootconfig: Show the number of bootconfig nodes
2020-02-05 17:17:05 -05:00
bpf
bpftool: Don't crash on missing xlated program instructions
2020-02-07 22:29:45 +01:00
build
perf/ui/gtk: Fix gtk2 build
2020-01-14 12:40:33 -03:00
cgroup
iocost: Fix iocost_monitor.py due to helper type mismatch
2020-01-17 11:54:35 -08:00
debugging
…
firewire
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
firmware
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
gpio
tools: gpio: Correctly add make dependencies for gpio_utils
2019-11-13 13:46:04 +01:00
hv
Tools: hv: Reopen the devices if read() or write() returns errors
2020-01-26 22:10:10 -05:00
iio
tools: iio: Correctly add make dependency for iio_utils
2019-11-10 17:11:06 +00:00
include
bitops: more BITS_TO_* macros
2020-02-04 03:05:26 +00:00
io_uring
tools/io_uring: sync with liburing
2019-05-23 10:25:26 -06:00
kvm/kvm_stat
tools/kvm_stat: Fix kvm_exit filter name
2020-01-23 09:51:06 +01:00
laptop
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
leds
leds: core: Add support for composing LED class device names
2019-07-25 20:07:52 +02:00
lib
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
memory-model
tools/memory-model/Documentation: Add plain accesses and data races to explanation.txt
2019-10-05 11:59:44 -07:00
nfsd
…
objtool
objtool: Optimize read_sections()
2020-03-25 18:28:30 +01:00
pci
tools: PCI: Fix fd leakage
2019-10-29 12:04:18 +00:00
pcmcia
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 247
2019-06-19 17:09:08 +02:00
perf
Merge tag 'perf-core-for-mingo-5.6-20200201' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
2020-02-05 08:44:40 +01:00
power
Merge tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-01-31 14:36:35 -08:00
scripts
perf build: Do not use -Wshadow on gcc < 4.8
2019-07-23 09:04:54 -03:00
spi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178
2019-05-30 11:29:19 -07:00
testing
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-02-08 17:15:08 -08:00
thermal/tmon
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 89
2019-05-24 17:37:52 +02:00
time
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
usb
usbip: Fix unsafe unaligned pointer usage
2020-01-09 16:44:26 +01:00
virtio
tools/virtio: xen stub
2019-10-13 09:38:27 -04:00
vm
tools/vm/slabinfo: fix sanity checks enabling
2020-01-31 10:30:38 -08:00
wmi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
tools: bootconfig: Add bootconfig command
2020-01-13 13:19:39 -05:00