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ARM: 8314/1: replace PROCINFO embedded branch with relative offset

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This patch replaces the 'branch to setup()' instructions embedded
in the PROCINFO structs with the offset to that setup function
relative to the base of the struct. This preserves the position
independent nature of that field, but uses a data item rather
than an instruction.

This is mainly done to prevent linker failures on large kernels,
where the setup function is out of reach for the branch.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ard Biesheuvel 2015-03-18 07:29:32 +01:00 committed by Russell King
parent 0a6a78b8b3
commit bf35706f3d
26 changed files with 72 additions and 67 deletions
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14
arch/arm/kernel/head.S
View file

@ -138,9 +138,9 @@ ENTRY(stext)
@ mmu has been enabled
adr lr, BSYM(1f) @ return (PIC) address
mov r8, r4 @ set TTBR1 to swapper_pg_dir
ARM( add pc, r10, #PROCINFO_INITFUNC )
THUMB( add r12, r10, #PROCINFO_INITFUNC )
THUMB( ret r12 )
ldr r12, [r10, #PROCINFO_INITFUNC]
add r12, r12, r10
ret r12
1: b __enable_mmu
ENDPROC(stext)
.ltorg
@ -386,10 +386,10 @@ ENTRY(secondary_startup)
ldr r8, [r7, lr] @ get secondary_data.swapper_pg_dir
adr lr, BSYM(__enable_mmu) @ return address
mov r13, r12 @ __secondary_switched address
ARM( add pc, r10, #PROCINFO_INITFUNC ) @ initialise processor
@ (return control reg)
THUMB( add r12, r10, #PROCINFO_INITFUNC )
THUMB( ret r12 )
ldr r12, [r10, #PROCINFO_INITFUNC]
add r12, r12, r10 @ initialise processor
@ (return control reg)
ret r12
ENDPROC(secondary_startup)
ENDPROC(secondary_startup_arm)

4
arch/arm/mm/proc-arm1020.S
View file

@ -507,7 +507,7 @@ cpu_arm1020_name:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm1020_proc_info,#object
__arm1020_proc_info:
@ -519,7 +519,7 @@ __arm1020_proc_info:
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm1020_setup
initfn __arm1020_setup, __arm1020_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm1020e.S
View file

@ -465,7 +465,7 @@ arm1020e_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm1020e_proc_info,#object
__arm1020e_proc_info:
@ -479,7 +479,7 @@ __arm1020e_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm1020e_setup
initfn __arm1020e_setup, __arm1020e_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_EDSP

4
arch/arm/mm/proc-arm1022.S
View file

@ -448,7 +448,7 @@ arm1022_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm1022_proc_info,#object
__arm1022_proc_info:
@ -462,7 +462,7 @@ __arm1022_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm1022_setup
initfn __arm1022_setup, __arm1022_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_EDSP

4
arch/arm/mm/proc-arm1026.S
View file

@ -442,7 +442,7 @@ arm1026_crval:
string cpu_arm1026_name, "ARM1026EJ-S"
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm1026_proc_info,#object
__arm1026_proc_info:
@ -456,7 +456,7 @@ __arm1026_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm1026_setup
initfn __arm1026_setup, __arm1026_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_JAVA

4
arch/arm/mm/proc-arm720.S
View file

@ -186,7 +186,7 @@ arm720_crval:
* See <asm/procinfo.h> for a definition of this structure.
*/
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro arm720_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cpu_flush:req
.type __\name\()_proc_info,#object
@ -203,7 +203,7 @@ __\name\()_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b \cpu_flush @ cpu_flush
initfn \cpu_flush, __\name\()_proc_info @ cpu_flush
.long cpu_arch_name @ arch_name
.long cpu_elf_name @ elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB @ elf_hwcap

4
arch/arm/mm/proc-arm740.S
View file

@ -132,14 +132,14 @@ __arm740_setup:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm740_proc_info,#object
__arm740_proc_info:
.long 0x41807400
.long 0xfffffff0
.long 0
.long 0
b __arm740_setup
initfn __arm740_setup, __arm740_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_26BIT

4
arch/arm/mm/proc-arm7tdmi.S
View file

@ -76,7 +76,7 @@ __arm7tdmi_setup:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
extra_hwcaps=0
@ -86,7 +86,7 @@ __\name\()_proc_info:
.long \cpu_mask
.long 0
.long 0
b __arm7tdmi_setup
initfn __arm7tdmi_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )

4
arch/arm/mm/proc-arm920.S
View file

@ -448,7 +448,7 @@ arm920_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm920_proc_info,#object
__arm920_proc_info:
@ -464,7 +464,7 @@ __arm920_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm920_setup
initfn __arm920_setup, __arm920_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm922.S
View file

@ -426,7 +426,7 @@ arm922_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm922_proc_info,#object
__arm922_proc_info:
@ -442,7 +442,7 @@ __arm922_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm922_setup
initfn __arm922_setup, __arm922_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm925.S
View file

@ -494,7 +494,7 @@ arm925_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro arm925_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache
.type __\name\()_proc_info,#object
@ -510,7 +510,7 @@ __\name\()_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm925_setup
initfn __arm925_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm926.S
View file

@ -474,7 +474,7 @@ arm926_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm926_proc_info,#object
__arm926_proc_info:
@ -490,7 +490,7 @@ __arm926_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __arm926_setup
initfn __arm926_setup, __arm926_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_JAVA

4
arch/arm/mm/proc-arm940.S
View file

@ -354,14 +354,14 @@ __arm940_setup:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm940_proc_info,#object
__arm940_proc_info:
.long 0x41009400
.long 0xff00fff0
.long 0
b __arm940_setup
initfn __arm940_setup, __arm940_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm946.S
View file

@ -409,14 +409,14 @@ __arm946_setup:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __arm946_proc_info,#object
__arm946_proc_info:
.long 0x41009460
.long 0xff00fff0
.long 0
.long 0
b __arm946_setup
initfn __arm946_setup, __arm946_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB

4
arch/arm/mm/proc-arm9tdmi.S
View file

@ -70,7 +70,7 @@ __arm9tdmi_setup:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
.type __\name\()_proc_info, #object
@ -79,7 +79,7 @@ __\name\()_proc_info:
.long \cpu_mask
.long 0
.long 0
b __arm9tdmi_setup
initfn __arm9tdmi_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT

4
arch/arm/mm/proc-fa526.S
View file

@ -190,7 +190,7 @@ fa526_cr1_set:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __fa526_proc_info,#object
__fa526_proc_info:
@ -206,7 +206,7 @@ __fa526_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __fa526_setup
initfn __fa526_setup, __fa526_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF

5
arch/arm/mm/proc-feroceon.S
View file

@ -584,7 +584,7 @@ feroceon_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro feroceon_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache:req
.type __\name\()_proc_info,#object
@ -601,7 +601,8 @@ __\name\()_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __feroceon_setup
initfn __feroceon_setup, __\name\()_proc_info
.long __feroceon_setup
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP

4
arch/arm/mm/proc-macros.S
View file

@ -331,3 +331,7 @@ ENTRY(\name\()_tlb_fns)
.globl \x
.equ \x, \y
.endm
.macro initfn, func, base
.long \func - \base
.endm

4
arch/arm/mm/proc-mohawk.S
View file

@ -427,7 +427,7 @@ mohawk_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __88sv331x_proc_info,#object
__88sv331x_proc_info:
@ -443,7 +443,7 @@ __88sv331x_proc_info:
PMD_BIT4 | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __mohawk_setup
initfn __mohawk_setup, __88sv331x_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP

4
arch/arm/mm/proc-sa110.S
View file

@ -199,7 +199,7 @@ sa110_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.type __sa110_proc_info,#object
__sa110_proc_info:
@ -213,7 +213,7 @@ __sa110_proc_info:
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __sa110_setup
initfn __sa110_setup, __sa110_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_26BIT | HWCAP_FAST_MULT

4
arch/arm/mm/proc-sa1100.S
View file

@ -242,7 +242,7 @@ sa1100_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro sa1100_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
.type __\name\()_proc_info,#object
@ -257,7 +257,7 @@ __\name\()_proc_info:
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __sa1100_setup
initfn __sa1100_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_26BIT | HWCAP_FAST_MULT

4
arch/arm/mm/proc-v6.S
View file

@ -264,7 +264,7 @@ v6_crval:
string cpu_elf_name, "v6"
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
/*
* Match any ARMv6 processor core.
@ -287,7 +287,7 @@ __v6_proc_info:
PMD_SECT_XN | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __v6_setup
initfn __v6_setup, __v6_proc_info
.long cpu_arch_name
.long cpu_elf_name
/* See also feat_v6_fixup() for HWCAP_TLS */

28
arch/arm/mm/proc-v7.S
View file

@ -462,19 +462,19 @@ __v7_setup_stack:
string cpu_elf_name, "v7"
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
/*
* Standard v7 proc info content
*/
.macro __v7_proc initfunc, mm_mmuflags = 0, io_mmuflags = 0, hwcaps = 0, proc_fns = v7_processor_functions
.macro __v7_proc name, initfunc, mm_mmuflags = 0, io_mmuflags = 0, hwcaps = 0, proc_fns = v7_processor_functions
ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \
PMD_SECT_AF | PMD_FLAGS_SMP | \mm_mmuflags)
ALT_UP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \
PMD_SECT_AF | PMD_FLAGS_UP | \mm_mmuflags)
.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ | PMD_SECT_AF | \io_mmuflags
W(b) \initfunc
initfn \initfunc, \name
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_FAST_MULT | \
@ -494,7 +494,7 @@ __v7_setup_stack:
__v7_ca5mp_proc_info:
.long 0x410fc050
.long 0xff0ffff0
__v7_proc __v7_ca5mp_setup
__v7_proc __v7_ca5mp_proc_info, __v7_ca5mp_setup
.size __v7_ca5mp_proc_info, . - __v7_ca5mp_proc_info
/*
@ -504,7 +504,7 @@ __v7_ca5mp_proc_info:
__v7_ca9mp_proc_info:
.long 0x410fc090
.long 0xff0ffff0
__v7_proc __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions
__v7_proc __v7_ca9mp_proc_info, __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions
.size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
#endif /* CONFIG_ARM_LPAE */
@ -517,7 +517,7 @@ __v7_ca9mp_proc_info:
__v7_pj4b_proc_info:
.long 0x560f5800
.long 0xff0fff00
__v7_proc __v7_pj4b_setup, proc_fns = pj4b_processor_functions
__v7_proc __v7_pj4b_proc_info, __v7_pj4b_setup, proc_fns = pj4b_processor_functions
.size __v7_pj4b_proc_info, . - __v7_pj4b_proc_info
#endif
@ -528,7 +528,7 @@ __v7_pj4b_proc_info:
__v7_cr7mp_proc_info:
.long 0x410fc170
.long 0xff0ffff0
__v7_proc __v7_cr7mp_setup
__v7_proc __v7_cr7mp_proc_info, __v7_cr7mp_setup
.size __v7_cr7mp_proc_info, . - __v7_cr7mp_proc_info
/*
@ -538,7 +538,7 @@ __v7_cr7mp_proc_info:
__v7_ca7mp_proc_info:
.long 0x410fc070
.long 0xff0ffff0
__v7_proc __v7_ca7mp_setup
__v7_proc __v7_ca7mp_proc_info, __v7_ca7mp_setup
.size __v7_ca7mp_proc_info, . - __v7_ca7mp_proc_info
/*
@ -548,7 +548,7 @@ __v7_ca7mp_proc_info:
__v7_ca12mp_proc_info:
.long 0x410fc0d0
.long 0xff0ffff0
__v7_proc __v7_ca12mp_setup
__v7_proc __v7_ca12mp_proc_info, __v7_ca12mp_setup
.size __v7_ca12mp_proc_info, . - __v7_ca12mp_proc_info
/*
@ -558,7 +558,7 @@ __v7_ca12mp_proc_info:
__v7_ca15mp_proc_info:
.long 0x410fc0f0
.long 0xff0ffff0
__v7_proc __v7_ca15mp_setup
__v7_proc __v7_ca15mp_proc_info, __v7_ca15mp_setup
.size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info
/*
@ -568,7 +568,7 @@ __v7_ca15mp_proc_info:
__v7_b15mp_proc_info:
.long 0x420f00f0
.long 0xff0ffff0
__v7_proc __v7_b15mp_setup
__v7_proc __v7_b15mp_proc_info, __v7_b15mp_setup
.size __v7_b15mp_proc_info, . - __v7_b15mp_proc_info
/*
@ -578,7 +578,7 @@ __v7_b15mp_proc_info:
__v7_ca17mp_proc_info:
.long 0x410fc0e0
.long 0xff0ffff0
__v7_proc __v7_ca17mp_setup
__v7_proc __v7_ca17mp_proc_info, __v7_ca17mp_setup
.size __v7_ca17mp_proc_info, . - __v7_ca17mp_proc_info
/*
@ -594,7 +594,7 @@ __krait_proc_info:
* do support them. They also don't indicate support for fused multiply
* instructions even though they actually do support them.
*/
__v7_proc __v7_setup, hwcaps = HWCAP_IDIV | HWCAP_VFPv4
__v7_proc __krait_proc_info, __v7_setup, hwcaps = HWCAP_IDIV | HWCAP_VFPv4
.size __krait_proc_info, . - __krait_proc_info
/*
@ -604,5 +604,5 @@ __krait_proc_info:
__v7_proc_info:
.long 0x000f0000 @ Required ID value
.long 0x000f0000 @ Mask for ID
__v7_proc __v7_setup
__v7_proc __v7_proc_info, __v7_setup
.size __v7_proc_info, . - __v7_proc_info

4
arch/arm/mm/proc-v7m.S
View file

@ -135,7 +135,7 @@ __v7m_setup_stack_top:
string cpu_elf_name "v7m"
string cpu_v7m_name "ARMv7-M"
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
/*
* Match any ARMv7-M processor core.
@ -146,7 +146,7 @@ __v7m_proc_info:
.long 0x000f0000 @ Mask for ID
.long 0 @ proc_info_list.__cpu_mm_mmu_flags
.long 0 @ proc_info_list.__cpu_io_mmu_flags
b __v7m_setup @ proc_info_list.__cpu_flush
initfn __v7m_setup, __v7m_proc_info @ proc_info_list.__cpu_flush
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT

4
arch/arm/mm/proc-xsc3.S
View file

@ -499,7 +499,7 @@ xsc3_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro xsc3_proc_info name:req, cpu_val:req, cpu_mask:req
.type __\name\()_proc_info,#object
@ -514,7 +514,7 @@ __\name\()_proc_info:
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __xsc3_setup
initfn __xsc3_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP

4
arch/arm/mm/proc-xscale.S
View file

@ -612,7 +612,7 @@ xscale_crval:
.align
.section ".proc.info.init", #alloc, #execinstr
.section ".proc.info.init", #alloc
.macro xscale_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache
.type __\name\()_proc_info,#object
@ -627,7 +627,7 @@ __\name\()_proc_info:
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __xscale_setup
initfn __xscale_setup, __\name\()_proc_info
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP