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linux/arch/mips/kernel
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Tony Wu 5000653e92 MIPS: Extract schedule_mfi info from __schedule 
schedule_mfi is supposed to be extracted from schedule(), and
is used in thread_saved_pc and get_wchan.

But, after optimization, schedule() is reduced to a sibling
call to __schedule(), and no real frame info can be extracted.

One solution is to compile schedule() with -fno-omit-frame-pointer
and -fno-optimize-sibling-calls, but that will incur performance
degradation.

Another solution is to extract info from the real scheduler,
__schedule, and this is the approache adopted here.

This patch reads the __schedule address by either following
the 'j' call in schedule if KALLSYMS is disabled or by using
kallsyms_lookup_name to lookup __schedule if KALLSYMS is
available, then, extracts schedule_mfi from __schedule frame info.

This patch also fixes the "Can't analyze schedule() prologue"
warning at boot time.

Signed-off-by: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5237/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-17 20:59:35 +02:00
..
.gitignore
…
8250-platform.c
mips: remove needless include of module.h from core kernel files.
2011-10-31 19:30:57 -04:00
asm-offsets.c
MIPS: ASM offsets for VCPU arch specific fields.
2013-05-08 03:55:37 +02:00
binfmt_elfn32.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
binfmt_elfo32.c
KVM/MIPS32: KVM Guest kernel support.
2013-05-08 03:55:35 +02:00
bmips_vec.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
branch.c
MIPS: MIPS16e: Support handling of delay slots.
2013-05-09 17:55:20 +02:00
cevt-bcm1480.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-ds1287.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-gic.c
MIPS: Add new GIC clockevent driver.
2013-05-09 17:55:21 +02:00
cevt-gt641xx.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-r4k.c
Merge branch 'mti-next' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next
2013-05-09 17:57:30 +02:00
cevt-sb1250.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-smtc.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-txx9.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cpu-bugs64.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cpu-probe.c
MIPS: microMIPS: Add support for exception handling.
2013-05-09 17:55:18 +02:00
crash_dump.c
MIPS: Fix build error for crash_dump.c in 3.10-rc1
2013-05-17 20:36:02 +02:00
crash.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
csrc-bcm1480.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
csrc-gic.c
MIPS: Refactor GIC clocksource code.
2013-05-09 17:55:20 +02:00
csrc-ioasic.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
csrc-powertv.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
csrc-r4k.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-sb1250.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
early_printk.c
early_printk: consolidate random copies of identical code
2013-04-29 18:28:13 -07:00
entry.S
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-12-12 12:22:13 -08:00
ftrace.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
genex.S
Revert "MIPS: Allow ASID size to be determined at boot time."
2013-05-16 20:35:42 +02:00
gpio_txx9.c
…
head.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
i8253.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
i8259.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq_cpu.c
Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next
2013-02-21 12:51:33 +01:00
irq_txx9.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-gic.c
MIPS: Add new GIC clockevent driver.
2013-05-09 17:55:21 +02:00
irq-gt641xx.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-msc01.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-rm7000.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
jump_label.c
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
kgdb.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
kprobes.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
linux32.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
machine_kexec.c
MIPS: kdump: Add support
2012-12-13 16:46:47 +01:00
Makefile
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-05-10 07:48:05 -07:00
mcount.S
MIPS: Unbreak function tracer for 64-bit kernel.
2013-04-05 15:10:22 +02:00
mips_ksyms.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
mips_machine.c
MIPS: move mips_{set,get}_machine_name() to a more generic place
2013-05-08 01:19:07 +02:00
mips-mt-fpaff.c
MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
2012-12-13 18:15:26 +01:00
mips-mt.c
Merge branch 'master' into for-next
2012-04-08 21:48:52 +02:00
module-rela.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
module.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
octeon_switch.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
perf_event_mipsxx.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
perf_event.c
MIPS: perf: Reorganize contents of perf support files.
2011-10-24 23:34:26 +01:00
proc.c
Merge branch 'mti-next' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next
2013-05-09 17:57:30 +02:00
process.c
MIPS: Extract schedule_mfi info from __schedule
2013-05-17 20:59:35 +02:00
prom.c
MIPS: move mips_{set,get}_machine_name() to a more generic place
2013-05-08 01:19:07 +02:00
ptrace32.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
ptrace.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
r4k_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
r4k_switch.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
r2300_fpu.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
r2300_switch.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
r6000_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
relocate_kernel.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
reset.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
rtlx.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
scall32-o32.S
MIPS: microMIPS: Add support for exception handling.
2013-05-09 17:55:18 +02:00
scall64-64.S
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
scall64-n32.S
get rid of compat_sys_semctl() and friends in case of ARCH_WANT_OLD_COMPAT_IPC
2013-03-03 23:00:27 -05:00
scall64-o32.S
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
setup.c
MIPS: add detect_memory_region()
2013-05-08 01:19:11 +02:00
signal32.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
signal_n32.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
signal-common.h
most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
2012-06-01 12:58:51 -04:00
signal.c
MIPS: microMIPS: Add vdso support.
2013-05-09 17:55:19 +02:00
smp-bmips.c
MIPS: BMIPS: delay irq enable to ->smp_finish()
2012-07-19 11:23:44 +02:00
smp-cmp.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
smp-mt.c
MIPS: Move 'gic_present' to common location.
2013-05-09 17:55:20 +02:00
smp-up.c
cpumask: arch_send_call_function_ipi_mask: mips
2009-09-24 09:34:45 +09:30
smp.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-05-10 07:48:05 -07:00
smtc-asm.S
MIPS: microMIPS: Add support for exception handling.
2013-05-09 17:55:18 +02:00
smtc-proc.c
mips: single_open() leaks
2013-05-05 00:10:21 -04:00
smtc.c
Revert "MIPS: Allow ASID size to be determined at boot time."
2013-05-16 20:35:42 +02:00
spinlock_test.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
spram.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
stacktrace.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
sync-r4k.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
syscall.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
time.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
topology.c
MIPS: Add arch generic CPU hotplug
2009-06-24 18:34:40 +01:00
traps.c
Revert "MIPS: Allow ASID size to be determined at boot time."
2013-05-16 20:35:42 +02:00
unaligned.c
MIPS: MIPS16e: Add unaligned access support.
2013-05-09 17:55:20 +02:00
vdso.c
coredump: remove VM_ALWAYSDUMP flag
2012-03-23 16:58:42 -07:00
vmlinux.lds.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
vpe.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
watch.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00