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9d636109511a000882f8dff4eaafa874eec5ece8
android_kernel_xiaomi_sm8450/arch/powerpc/kernel
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Michael Ellerman 9d63610951 powerpc/ftrace: Separate the heuristics for checking call sites 
In __ftrace_make_nop() (the 64-bit version), we have code to deal with
two ftrace ABIs. There is the original ABI, which looks mostly like a
function call, and then the mprofile-kernel ABI which is just a branch.

The code tries to handle both cases, by looking for the presence of a
load to restore the TOC pointer (PPC_INST_LD_TOC). If we detect the TOC
load, we assume the call site is for an mcount() call using the old ABI.
That means we patch the mcount() call with a b +8, to branch over the
TOC load.

However if the kernel was built with mprofile-kernel, then there will
never be a call site using the original ftrace ABI. If for some reason
we do see a TOC load, then it's there for a good reason, and we should
not jump over it.

So split the code, using the existing CC_USING_MPROFILE_KERNEL. Kernels
built with mprofile-kernel will only look for, and expect, the new ABI,
and similarly for the original ABI.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-21 20:10:37 +10:00
..
vdso32
powerpc: enable UBSAN support
2016-01-20 17:09:18 -08:00
vdso64
powerpc: enable UBSAN support
2016-01-20 17:09:18 -08:00
.gitignore
…
align.c
powerpc: Send SIGBUS on unaligned copy and paste
2016-07-05 23:49:51 +10:00
asm-offsets.c
powerpc/asm: Remove unused symbols in asm-offsets.c
2016-06-16 15:11:25 +10:00
audit.c
…
btext.c
powerpc/mm: Use a helper for finding pte bits mapping I/O area
2016-05-01 18:32:32 +10:00
cacheinfo.c
powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
2015-04-11 20:49:28 +10:00
cacheinfo.h
…
compat_audit.c
…
cpu_setup_6xx.S
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
cpu_setup_44x.S
…
cpu_setup_fsl_booke.S
powerpc/cache: add cache flush operation for various e500
2016-03-04 23:44:51 -06:00
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc/irq: Add support for HV virtualization interrupts
2016-07-17 16:42:44 +10:00
cpu_setup_ppc970.S
…
cputable.c
powerpc/mm: Clear top 16 bits of va only on older cpus
2016-07-17 16:42:52 +10:00
crash_dump.c
powerpc: Remove superfluous bootmem includes
2014-11-10 09:59:26 +11:00
crash.c
powerpc/crash: Rearrange loop condition to avoid out of bounds array access
2016-07-14 20:26:22 +10:00
dbell.c
powerpc/powernv: Fixes for hypervisor doorbell handling
2015-03-20 14:51:53 +11:00
dma-iommu.c
powerpc/iommu: Support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask
2015-07-13 10:10:55 +10:00
dma-swiotlb.c
powerpc/iommu: Support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask
2015-07-13 10:10:55 +10:00
dma.c
powerpc/dma: dma_set_coherent_mask() should not be GPL only
2015-10-28 14:20:50 +09:00
eeh_cache.c
powerpc/eeh: Fix pr_debug()s in eeh_cache.c
2016-07-08 22:09:50 +10:00
eeh_dev.c
powerpc/pci: Delay populating pdn
2016-06-21 15:30:56 +10:00
eeh_driver.c
Merge tag 'powerpc-4.7-5' into next
2016-07-15 14:57:47 +10:00
eeh_event.c
powerpc: sparse: static-ify some things
2016-04-12 21:05:18 +10:00
eeh_pe.c
powerpc/eeh: fix misleading indentation
2016-04-27 09:19:37 +10:00
eeh_sysfs.c
powerpc/eeh: Fix PE state format
2014-11-27 09:32:58 +11:00
eeh.c
Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell"
2016-05-12 19:52:21 +10:00
entry_32.S
powerpc/kernel: Change the do_syscall_trace_enter() API
2015-07-29 11:56:11 +10:00
entry_64.S
powerpc: Define and use PPC64_ELF_ABI_v2/v1
2016-06-14 13:58:27 +10:00
epapr_hcalls.S
…
epapr_paravirt.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2014-06-10 18:54:22 -07:00
exceptions-64e.S
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
exceptions-64s.S
powerpc/irq: Add support for HV virtualization interrupts
2016-07-17 16:42:44 +10:00
fadump.c
powerpc/fadump: Fix build error introduced by recent cleanup
2016-07-05 23:49:46 +10:00
firmware.c
…
fpu.S
powerpc: Add the ability to save FPU without giving it up
2016-03-02 23:34:49 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl: Force coherent memory on e500mc derivatives
2015-08-07 23:00:01 -05:00
ftrace.c
powerpc/ftrace: Separate the heuristics for checking call sites
2016-07-21 20:10:37 +10:00
head_8xx.S
powerpc/8xx: rewrite set_context() in C
2016-03-11 17:20:11 -06:00
head_32.S
…
head_40x.S
powerpc: Remove check for CONFIG_SERIAL_TEXT_DEBUG
2014-06-11 16:31:21 +10:00
head_44x.S
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
head_64.S
powerpc/64: Move the content of setup_system() to setup_arch()
2016-07-21 19:14:29 +10:00
head_booke.h
powerpc: Fix interrupt range check on debug exception
2013-05-02 10:31:01 +10:00
head_fsl_booke.S
powerpc/cache: add cache flush operation for various e500
2016-03-04 23:44:51 -06:00
hw_breakpoint.c
powerpc/hw_breakpoint: Fix oops when destroying hw_breakpoint event
2016-03-03 22:06:08 +11:00
ibmebus.c
powerpc: sparse: static-ify some things
2016-04-12 21:05:18 +10:00
idle_6xx.S
…
idle_book3e.S
powerpc: No need to use dot symbols when branching to a function
2014-04-23 10:05:16 +10:00
idle_book3s.S
powerpc/opal: Add real mode call wrappers
2016-07-17 16:42:46 +10:00
idle_e500.S
powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S
2015-06-02 21:37:19 -05:00
idle_power4.S
powerpc: No need to use dot symbols when branching to a function
2014-04-23 10:05:16 +10:00
idle.c
powerpc/idle: Convert use of typedef ctl_table to struct ctl_table
2013-07-01 11:10:35 +10:00
io-workarounds.c
powerpc/mm: Differentiate between hugetlb and THP during page walk
2015-10-12 15:30:09 +11:00
io.c
powerpc/powernv: Add PIO accessors for Power8 LPC bus
2013-08-14 14:58:08 +10:00
iomap.c
powerpc/kerenl: Enable EEH for IO accessors
2014-06-24 12:43:13 +10:00
iommu.c
powerpc/iommu/powernv: Release replaced TCE
2015-06-11 15:16:49 +10:00
irq.c
powerpc/irq: Add mechanism to force a replay of interrupts
2016-07-17 16:42:44 +10:00
isa-bridge.c
powerpc/mm: Use a helper for finding pte bits mapping I/O area
2016-05-01 18:32:32 +10:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kgdb.c
powerpc: Fix kgdb on little endian ppc64le
2016-02-18 00:03:26 +11:00
kprobes.c
powerpc/kprobes: Remove kretprobe_trampoline_holder.
2016-06-21 15:30:49 +10:00
kvm_emul.S
…
kvm.c
powerpc: Remove redundant breaks
2015-08-06 15:10:20 +10:00
l2cr_6xx.S
…
legacy_serial.c
powerpc: make of_device_ids const
2014-09-25 23:14:46 +10:00
machine_kexec_32.c
…
machine_kexec_64.c
powerpc/mm: Move hash table ops to a separate structure
2016-07-21 18:59:09 +10:00
machine_kexec.c
powerpc: Update of_remove_property() call sites to remove null checking
2016-05-11 21:54:04 +10:00
Makefile
powerpc/32: Remove RELOCATABLE_PPC32
2016-07-19 20:17:07 +10:00
mce_power.c
powerpc/mm/radix: Fix CONFIG_PPC_MMU_STD_64 typo
2016-05-11 21:53:59 +10:00
mce.c
Merge tag 'powerpc-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2016-05-20 10:12:41 -07:00
misc_32.S
powerpc/32: Get rid of sub_reloc_offset()
2016-06-14 13:58:26 +10:00
misc_64.S
powerpc/mm: Move hash table ops to a separate structure
2016-07-21 18:59:09 +10:00
misc.S
powerpc: Rename __get_SP() to current_stack_pointer()
2014-10-15 11:23:20 +11:00
module_32.c
powerpc/module: Only try to generate the ftrace_caller() stub once
2016-03-07 14:53:53 +11:00
module_64.c
powerpc: Define and use PPC64_ELF_ABI_v2/v1
2016-06-14 13:58:27 +10:00
module.c
powerpc/module: Only try to generate the ftrace_caller() stub once
2016-03-07 14:53:53 +11:00
msi.c
powerpc: Remove MSI-related PCI controller ops from ppc_md
2015-06-02 11:47:45 +10:00
nvram_64.c
powerpc: make kernel/nvram_64.c explicitly non-modular
2016-04-11 20:30:43 +10:00
of_platform.c
powerpc/eeh: Do probe on pci_dn
2015-03-24 13:15:52 +11:00
paca.c
powerpc: Create a helper for getting the kernel toc value
2016-03-07 14:53:52 +11:00
pci_32.c
powerpc: Remove more traces of bootmem
2014-11-19 21:41:51 +11:00
pci_64.c
Merge tag 'powerpc-4.7-5' into next
2016-07-15 14:57:47 +10:00
pci_dn.c
powerpc/pci: Fix build with PCI_IOV=y and EEH=n
2016-07-07 16:33:27 +10:00
pci_of_scan.c
PCI/MSI: Initialize MSI capability for all architectures
2015-11-24 17:45:18 -06:00
pci-common.c
powerpc/pci: Don't try to allocate resources that will be reassigned
2016-07-17 16:42:49 +10:00
pci-hotplug.c
powerpc/pci: Don't scan empty slot
2016-05-11 21:54:26 +10:00
pmc.c
…
ppc32.h
…
ppc_ksyms_32.c
powerpc32: Remove clear_pages() and define clear_page() inline
2016-03-11 17:20:11 -06:00
ppc_ksyms.c
powerpc32: move xxxxx_dcache_range() functions inline
2016-03-11 17:20:12 -06:00
ppc_save_regs.S
…
proc_powerpc.c
proc_powerpc: switch to fixed_size_llseek()
2013-06-29 12:57:50 +04:00
process.c
Merge tag 'powerpc-4.7-5' into next
2016-07-15 14:57:47 +10:00
prom_init_check.sh
powerpc: Simplify symbol check in prom_init_check.sh
2014-09-25 23:14:46 +10:00
prom_init.c
powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added
2016-06-08 10:40:05 +10:00
prom_parse.c
powerpc: of_parse_dma_window should take a __be32 *dma_window
2013-08-14 15:33:26 +10:00
prom.c
powerpc/64: Move MMU backend selection out of platform code
2016-07-21 18:56:38 +10:00
ptrace32.c
powerpc: move debug registers in a structure
2013-10-18 18:44:49 -05:00
ptrace.c
powerpc/ptrace: Fix out of bounds array access warning
2016-06-06 10:48:07 +10:00
reloc_32.S
powerpc: Don't flush/invalidate the d/icache for an unknown relocation type
2013-07-01 11:10:34 +10:00
reloc_64.S
powerpc: Align p_dyn, p_rela and p_st symbols
2014-03-07 13:50:19 +11:00
rtas_flash.c
powerpc: Fix endianness of flash_block_list in rtas_flash
2014-07-28 11:30:54 +10:00
rtas_pci.c
powerpc: move find_and_init_phbs() to pSeries specific code
2015-04-11 20:49:09 +10:00
rtas-proc.c
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
rtas-rtc.c
…
rtas.c
powerpc: Make ppc_md.{halt, restart} __noreturn
2016-07-14 21:12:06 +10:00
rtasd.c
powerpc/pseries: start rtasd before PCI probing
2016-07-08 19:22:15 +10:00
setup_32.c
powerpc: Merge 32-bit and 64-bit setup_arch()
2016-07-21 19:17:46 +10:00
setup_64.c
powerpc: Merge 32-bit and 64-bit setup_arch()
2016-07-21 19:17:46 +10:00
setup-common.c
powerpc: Merge 32-bit and 64-bit setup_arch()
2016-07-21 19:17:46 +10:00
setup.h
powerpc: Merge 32-bit and 64-bit setup_arch()
2016-07-21 19:17:46 +10:00
signal_32.c
Merge tag 'powerpc-4.4-3' into next
2015-12-14 20:40:32 +11:00
signal_64.c
powerpc: Avoid load hit store in setup_sigcontext()
2016-06-14 13:58:25 +10:00
signal.c
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
signal.h
powerpc: Fix misspellings in comments.
2016-03-01 19:27:20 +11:00
smp-tbsync.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
smp.c
powerpc: export cpu_to_core_id()
2016-06-21 15:30:51 +10:00
stacktrace.c
powerpc: Implement save_stack_trace_regs() to enable kprobe stack tracing
2016-01-11 14:27:28 +11:00
suspend.c
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
2014-10-09 22:26:04 -04:00
swsusp_32.S
…
swsusp_64.c
…
swsusp_asm64.S
powerpc: Only save/restore SDR1 if in hypervisor mode
2013-10-31 12:37:29 +11:00
swsusp_booke.S
powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg
2014-01-07 19:06:03 -06:00
swsusp.c
powerpc/mm: Abstraction for switch_mmu_context()
2016-05-01 18:33:04 +10:00
sys_ppc32.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
syscalls.c
powerpc: Add a proper syscall for switching endianness
2015-03-28 22:03:40 +11:00
sysfs.c
powerpc/sparse: make some things static
2016-06-16 22:23:11 +10:00
systbl_chk.c
powerpc: Standardise on NR_syscalls rather than __NR_syscalls.
2015-11-26 22:11:17 +11:00
systbl_chk.sh
powerpc: Standardise on NR_syscalls rather than __NR_syscalls.
2015-11-26 22:11:17 +11:00
systbl.S
powerpc: Add a proper syscall for switching endianness
2015-03-28 22:03:40 +11:00
tau_6xx.c
…
time.c
powerpc/timer: Large Decrementer support
2016-07-05 23:58:53 +10:00
tm.S
powerpc/tm: Fix stack pointer corruption in __tm_recheckpoint()
2016-07-15 15:00:18 +10:00
trace_clock.c
powerpc/ftrace: add powerpc timebase as a trace clock source
2015-08-06 16:36:23 +10:00
traps.c
powerpc: Load Monitor Register Support
2016-06-21 15:30:50 +10:00
udbg_16550.c
powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()
2014-11-12 13:47:20 +11:00
udbg.c
powerpc: Remove the celleb support
2015-04-07 17:15:13 +10:00
uprobes.c
uprobes/powerpc: Kill arch_uprobe->ainsn
2013-11-20 16:31:01 +01:00
vdso.c
vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
2016-05-23 17:04:14 -07:00
vecemu.c
powerpc: Put FP/VSX and VR state into structures
2013-10-11 17:26:49 +11:00
vector.S
powerpc: Add the ability to save VSX without giving it up
2016-03-02 23:34:50 +11:00
vio.c
powerpc: sparse: static-ify some things
2016-04-12 21:05:18 +10:00
vmlinux.lds.S
powerpc/32: Remove RELOCATABLE_PPC32
2016-07-19 20:17:07 +10:00