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arm64: kernel: Convert to modern annotations for assembly functions

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In an effort to clarify and simplify the annotation of assembly functions
in the kernel new macros have been introduced. These replace ENTRY and
ENDPROC and also add a new annotation for static functions which previously
had no ENTRY equivalent. Update the annotations in the core kernel code to
the new macros.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200501115430.37315-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Mark Brown 2020-05-01 12:54:29 +01:00 committed by Will Deacon
parent 06607c7e93
commit 0343a7e463
10 changed files with 68 additions and 68 deletions
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4
arch/arm64/kernel/cpu-reset.S
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@ -29,7 +29,7 @@
* branch to what would be the reset vector. It must be executed with the
* flat identity mapping.
*/
ENTRY(__cpu_soft_restart)
SYM_CODE_START(__cpu_soft_restart)
/* Clear sctlr_el1 flags. */
mrs x12, sctlr_el1
mov_q x13, SCTLR_ELx_FLAGS
@ -47,6 +47,6 @@ ENTRY(__cpu_soft_restart)
mov x1, x3 // arg1
mov x2, x4 // arg2
br x8
ENDPROC(__cpu_soft_restart)
SYM_CODE_END(__cpu_soft_restart)
.popsection

4
arch/arm64/kernel/efi-rt-wrapper.S
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@ -5,7 +5,7 @@
#include <linux/linkage.h>
ENTRY(__efi_rt_asm_wrapper)
SYM_FUNC_START(__efi_rt_asm_wrapper)
stp x29, x30, [sp, #-32]!
mov x29, sp
@ -35,4 +35,4 @@ ENTRY(__efi_rt_asm_wrapper)
b.ne 0f
ret
0: b efi_handle_corrupted_x18 // tail call
ENDPROC(__efi_rt_asm_wrapper)
SYM_FUNC_END(__efi_rt_asm_wrapper)

20
arch/arm64/kernel/entry-fpsimd.S
View File

@ -16,34 +16,34 @@
*
* x0 - pointer to struct fpsimd_state
*/
ENTRY(fpsimd_save_state)
SYM_FUNC_START(fpsimd_save_state)
fpsimd_save x0, 8
ret
ENDPROC(fpsimd_save_state)
SYM_FUNC_END(fpsimd_save_state)
/*
* Load the FP registers.
*
* x0 - pointer to struct fpsimd_state
*/
ENTRY(fpsimd_load_state)
SYM_FUNC_START(fpsimd_load_state)
fpsimd_restore x0, 8
ret
ENDPROC(fpsimd_load_state)
SYM_FUNC_END(fpsimd_load_state)
#ifdef CONFIG_ARM64_SVE
ENTRY(sve_save_state)
SYM_FUNC_START(sve_save_state)
sve_save 0, x1, 2
ret
ENDPROC(sve_save_state)
SYM_FUNC_END(sve_save_state)
ENTRY(sve_load_state)
SYM_FUNC_START(sve_load_state)
sve_load 0, x1, x2, 3, x4
ret
ENDPROC(sve_load_state)
SYM_FUNC_END(sve_load_state)
ENTRY(sve_get_vl)
SYM_FUNC_START(sve_get_vl)
_sve_rdvl 0, 1
ret
ENDPROC(sve_get_vl)
SYM_FUNC_END(sve_get_vl)
#endif /* CONFIG_ARM64_SVE */

16
arch/arm64/kernel/hibernate-asm.S
View File

@ -65,7 +65,7 @@
* x5: physical address of a zero page that remains zero after resume
*/
.pushsection ".hibernate_exit.text", "ax"
ENTRY(swsusp_arch_suspend_exit)
SYM_CODE_START(swsusp_arch_suspend_exit)
/*
* We execute from ttbr0, change ttbr1 to our copied linear map tables
* with a break-before-make via the zero page
@ -110,7 +110,7 @@ ENTRY(swsusp_arch_suspend_exit)
cbz x24, 3f /* Do we need to re-initialise EL2? */
hvc #0
3: ret
ENDPROC(swsusp_arch_suspend_exit)
SYM_CODE_END(swsusp_arch_suspend_exit)
/*
* Restore the hyp stub.
@ -119,15 +119,15 @@ ENDPROC(swsusp_arch_suspend_exit)
*
* x24: The physical address of __hyp_stub_vectors
*/
el1_sync:
SYM_CODE_START_LOCAL(el1_sync)
msr vbar_el2, x24
eret
ENDPROC(el1_sync)
SYM_CODE_END(el1_sync)
.macro invalid_vector label
\label:
SYM_CODE_START_LOCAL(\label)
b \label
ENDPROC(\label)
SYM_CODE_END(\label)
.endm
invalid_vector el2_sync_invalid
@ -141,7 +141,7 @@ ENDPROC(\label)
/* el2 vectors - switch el2 here while we restore the memory image. */
.align 11
ENTRY(hibernate_el2_vectors)
SYM_CODE_START(hibernate_el2_vectors)
ventry el2_sync_invalid // Synchronous EL2t
ventry el2_irq_invalid // IRQ EL2t
ventry el2_fiq_invalid // FIQ EL2t
@ -161,6 +161,6 @@ ENTRY(hibernate_el2_vectors)
ventry el1_irq_invalid // IRQ 32-bit EL1
ventry el1_fiq_invalid // FIQ 32-bit EL1
ventry el1_error_invalid // Error 32-bit EL1
END(hibernate_el2_vectors)
SYM_CODE_END(hibernate_el2_vectors)
.popsection

20
arch/arm64/kernel/hyp-stub.S
View File

@ -21,7 +21,7 @@
.align 11
ENTRY(__hyp_stub_vectors)
SYM_CODE_START(__hyp_stub_vectors)
ventry el2_sync_invalid // Synchronous EL2t
ventry el2_irq_invalid // IRQ EL2t
ventry el2_fiq_invalid // FIQ EL2t
@ -41,11 +41,11 @@ ENTRY(__hyp_stub_vectors)
ventry el1_irq_invalid // IRQ 32-bit EL1
ventry el1_fiq_invalid // FIQ 32-bit EL1
ventry el1_error_invalid // Error 32-bit EL1
ENDPROC(__hyp_stub_vectors)
SYM_CODE_END(__hyp_stub_vectors)
.align 11
el1_sync:
SYM_CODE_START_LOCAL(el1_sync)
cmp x0, #HVC_SET_VECTORS
b.ne 2f
msr vbar_el2, x1
@ -68,12 +68,12 @@ el1_sync:
9: mov x0, xzr
eret
ENDPROC(el1_sync)
SYM_CODE_END(el1_sync)
.macro invalid_vector label
\label:
SYM_CODE_START_LOCAL(\label)
b \label
ENDPROC(\label)
SYM_CODE_END(\label)
.endm
invalid_vector el2_sync_invalid
@ -106,15 +106,15 @@ ENDPROC(\label)
* initialisation entry point.
*/
ENTRY(__hyp_set_vectors)
SYM_FUNC_START(__hyp_set_vectors)
mov x1, x0
mov x0, #HVC_SET_VECTORS
hvc #0
ret
ENDPROC(__hyp_set_vectors)
SYM_FUNC_END(__hyp_set_vectors)
ENTRY(__hyp_reset_vectors)
SYM_FUNC_START(__hyp_reset_vectors)
mov x0, #HVC_RESET_VECTORS
hvc #0
ret
ENDPROC(__hyp_reset_vectors)
SYM_FUNC_END(__hyp_reset_vectors)

4
arch/arm64/kernel/probes/kprobes_trampoline.S
View File

@ -61,7 +61,7 @@
ldp x28, x29, [sp, #S_X28]
.endm
ENTRY(kretprobe_trampoline)
SYM_CODE_START(kretprobe_trampoline)
sub sp, sp, #S_FRAME_SIZE
save_all_base_regs
@ -79,4 +79,4 @@ ENTRY(kretprobe_trampoline)
add sp, sp, #S_FRAME_SIZE
ret
ENDPROC(kretprobe_trampoline)
SYM_CODE_END(kretprobe_trampoline)

44
arch/arm64/kernel/reloc_test_syms.S
View File

@ -5,81 +5,81 @@
#include <linux/linkage.h>
ENTRY(absolute_data64)
SYM_FUNC_START(absolute_data64)
ldr x0, 0f
ret
0: .quad sym64_abs
ENDPROC(absolute_data64)
SYM_FUNC_END(absolute_data64)
ENTRY(absolute_data32)
SYM_FUNC_START(absolute_data32)
ldr w0, 0f
ret
0: .long sym32_abs
ENDPROC(absolute_data32)
SYM_FUNC_END(absolute_data32)
ENTRY(absolute_data16)
SYM_FUNC_START(absolute_data16)
adr x0, 0f
ldrh w0, [x0]
ret
0: .short sym16_abs, 0
ENDPROC(absolute_data16)
SYM_FUNC_END(absolute_data16)
ENTRY(signed_movw)
SYM_FUNC_START(signed_movw)
movz x0, #:abs_g2_s:sym64_abs
movk x0, #:abs_g1_nc:sym64_abs
movk x0, #:abs_g0_nc:sym64_abs
ret
ENDPROC(signed_movw)
SYM_FUNC_END(signed_movw)
ENTRY(unsigned_movw)
SYM_FUNC_START(unsigned_movw)
movz x0, #:abs_g3:sym64_abs
movk x0, #:abs_g2_nc:sym64_abs
movk x0, #:abs_g1_nc:sym64_abs
movk x0, #:abs_g0_nc:sym64_abs
ret
ENDPROC(unsigned_movw)
SYM_FUNC_END(unsigned_movw)
.align 12
.space 0xff8
ENTRY(relative_adrp)
SYM_FUNC_START(relative_adrp)
adrp x0, sym64_rel
add x0, x0, #:lo12:sym64_rel
ret
ENDPROC(relative_adrp)
SYM_FUNC_END(relative_adrp)
.align 12
.space 0xffc
ENTRY(relative_adrp_far)
SYM_FUNC_START(relative_adrp_far)
adrp x0, memstart_addr
add x0, x0, #:lo12:memstart_addr
ret
ENDPROC(relative_adrp_far)
SYM_FUNC_END(relative_adrp_far)
ENTRY(relative_adr)
SYM_FUNC_START(relative_adr)
adr x0, sym64_rel
ret
ENDPROC(relative_adr)
SYM_FUNC_END(relative_adr)
ENTRY(relative_data64)
SYM_FUNC_START(relative_data64)
adr x1, 0f
ldr x0, [x1]
add x0, x0, x1
ret
0: .quad sym64_rel - .
ENDPROC(relative_data64)
SYM_FUNC_END(relative_data64)
ENTRY(relative_data32)
SYM_FUNC_START(relative_data32)
adr x1, 0f
ldr w0, [x1]
add x0, x0, x1
ret
0: .long sym64_rel - .
ENDPROC(relative_data32)
SYM_FUNC_END(relative_data32)
ENTRY(relative_data16)
SYM_FUNC_START(relative_data16)
adr x1, 0f
ldrsh w0, [x1]
add x0, x0, x1
ret
0: .short sym64_rel - ., 0
ENDPROC(relative_data16)
SYM_FUNC_END(relative_data16)

4
arch/arm64/kernel/relocate_kernel.S
View File

@ -26,7 +26,7 @@
* control_code_page, a special page which has been set up to be preserved
* during the copy operation.
*/
ENTRY(arm64_relocate_new_kernel)
SYM_CODE_START(arm64_relocate_new_kernel)
/* Setup the list loop variables. */
mov x18, x2 /* x18 = dtb address */
@ -111,7 +111,7 @@ ENTRY(arm64_relocate_new_kernel)
mov x3, xzr
br x17
ENDPROC(arm64_relocate_new_kernel)
SYM_CODE_END(arm64_relocate_new_kernel)
.align 3 /* To keep the 64-bit values below naturally aligned. */

12
arch/arm64/kernel/sleep.S
View File

@ -62,7 +62,7 @@
*
* x0 = struct sleep_stack_data area
*/
ENTRY(__cpu_suspend_enter)
SYM_FUNC_START(__cpu_suspend_enter)
stp x29, lr, [x0, #SLEEP_STACK_DATA_CALLEE_REGS]
stp x19, x20, [x0,#SLEEP_STACK_DATA_CALLEE_REGS+16]
stp x21, x22, [x0,#SLEEP_STACK_DATA_CALLEE_REGS+32]
@ -95,10 +95,10 @@ ENTRY(__cpu_suspend_enter)
ldp x29, lr, [sp], #16
mov x0, #1
ret
ENDPROC(__cpu_suspend_enter)
SYM_FUNC_END(__cpu_suspend_enter)
.pushsection ".idmap.text", "awx"
ENTRY(cpu_resume)
SYM_CODE_START(cpu_resume)
bl el2_setup // if in EL2 drop to EL1 cleanly
mov x0, #ARM64_CPU_RUNTIME
bl __cpu_setup
@ -107,11 +107,11 @@ ENTRY(cpu_resume)
bl __enable_mmu
ldr x8, =_cpu_resume
br x8
ENDPROC(cpu_resume)
SYM_CODE_END(cpu_resume)
.ltorg
.popsection
ENTRY(_cpu_resume)
SYM_FUNC_START(_cpu_resume)
mrs x1, mpidr_el1
adr_l x8, mpidr_hash // x8 = struct mpidr_hash virt address
@ -147,4 +147,4 @@ ENTRY(_cpu_resume)
ldp x29, lr, [x29]
mov x0, #0
ret
ENDPROC(_cpu_resume)
SYM_FUNC_END(_cpu_resume)

8
arch/arm64/kernel/smccc-call.S
View File

@ -30,9 +30,9 @@
* unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
* struct arm_smccc_quirk *quirk)
*/
ENTRY(__arm_smccc_smc)
SYM_FUNC_START(__arm_smccc_smc)
SMCCC smc
ENDPROC(__arm_smccc_smc)
SYM_FUNC_END(__arm_smccc_smc)
EXPORT_SYMBOL(__arm_smccc_smc)
/*
@ -41,7 +41,7 @@ EXPORT_SYMBOL(__arm_smccc_smc)
* unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
* struct arm_smccc_quirk *quirk)
*/
ENTRY(__arm_smccc_hvc)
SYM_FUNC_START(__arm_smccc_hvc)
SMCCC hvc
ENDPROC(__arm_smccc_hvc)
SYM_FUNC_END(__arm_smccc_hvc)
EXPORT_SYMBOL(__arm_smccc_hvc)