Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-13 23:51:39 +00:00
Code Issues Packages Projects Releases Wiki Activity
2792d42fe6
linux/arch/mips/kernel
History
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
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