arm64: entry: Annotate vector table and handlers as code

In an effort to clarify and simplify the annotation of assembly
functions new macros have been introduced. These replace ENTRY and
ENDPROC with two different annotations for normal functions and those
with unusual calling conventions. The vector table and handlers aren't
normal C style code so should be annotated as CODE.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 9461d81..1454f3e 100644 (file)
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -465,7 +465,7 @@ alternative_endif
        .pushsection ".entry.text", "ax"
 
        .align  11
-ENTRY(vectors)
+SYM_CODE_START(vectors)
        kernel_ventry   1, sync_invalid                 // Synchronous EL1t
        kernel_ventry   1, irq_invalid                  // IRQ EL1t
        kernel_ventry   1, fiq_invalid                  // FIQ EL1t
@@ -492,7 +492,7 @@ ENTRY(vectors)
        kernel_ventry   0, fiq_invalid, 32              // FIQ 32-bit EL0
        kernel_ventry   0, error_invalid, 32            // Error 32-bit EL0
 #endif
-END(vectors)
+SYM_CODE_END(vectors)
 
 #ifdef CONFIG_VMAP_STACK
        /*
@@ -534,57 +534,57 @@ __bad_stack:
        ASM_BUG()
        .endm
 
-el0_sync_invalid:
+SYM_CODE_START_LOCAL(el0_sync_invalid)
        inv_entry 0, BAD_SYNC
-ENDPROC(el0_sync_invalid)
+SYM_CODE_END(el0_sync_invalid)
 
-el0_irq_invalid:
+SYM_CODE_START_LOCAL(el0_irq_invalid)
        inv_entry 0, BAD_IRQ
-ENDPROC(el0_irq_invalid)
+SYM_CODE_END(el0_irq_invalid)
 
-el0_fiq_invalid:
+SYM_CODE_START_LOCAL(el0_fiq_invalid)
        inv_entry 0, BAD_FIQ
-ENDPROC(el0_fiq_invalid)
+SYM_CODE_END(el0_fiq_invalid)
 
-el0_error_invalid:
+SYM_CODE_START_LOCAL(el0_error_invalid)
        inv_entry 0, BAD_ERROR
-ENDPROC(el0_error_invalid)
+SYM_CODE_END(el0_error_invalid)
 
 #ifdef CONFIG_COMPAT
-el0_fiq_invalid_compat:
+SYM_CODE_START_LOCAL(el0_fiq_invalid_compat)
        inv_entry 0, BAD_FIQ, 32
-ENDPROC(el0_fiq_invalid_compat)
+SYM_CODE_END(el0_fiq_invalid_compat)
 #endif
 
-el1_sync_invalid:
+SYM_CODE_START_LOCAL(el1_sync_invalid)
        inv_entry 1, BAD_SYNC
-ENDPROC(el1_sync_invalid)
+SYM_CODE_END(el1_sync_invalid)
 
-el1_irq_invalid:
+SYM_CODE_START_LOCAL(el1_irq_invalid)
        inv_entry 1, BAD_IRQ
-ENDPROC(el1_irq_invalid)
+SYM_CODE_END(el1_irq_invalid)
 
-el1_fiq_invalid:
+SYM_CODE_START_LOCAL(el1_fiq_invalid)
        inv_entry 1, BAD_FIQ
-ENDPROC(el1_fiq_invalid)
+SYM_CODE_END(el1_fiq_invalid)
 
-el1_error_invalid:
+SYM_CODE_START_LOCAL(el1_error_invalid)
        inv_entry 1, BAD_ERROR
-ENDPROC(el1_error_invalid)
+SYM_CODE_END(el1_error_invalid)
 
 /*
  * EL1 mode handlers.
  */
        .align  6
-el1_sync:
+SYM_CODE_START_LOCAL_NOALIGN(el1_sync)
        kernel_entry 1
        mov     x0, sp
        bl      el1_sync_handler
        kernel_exit 1
-ENDPROC(el1_sync)
+SYM_CODE_END(el1_sync)
 
        .align  6
-el1_irq:
+SYM_CODE_START_LOCAL_NOALIGN(el1_irq)
        kernel_entry 1
        gic_prio_irq_setup pmr=x20, tmp=x1
        enable_da_f
@@ -639,42 +639,42 @@ alternative_else_nop_endif
 #endif
 
        kernel_exit 1
-ENDPROC(el1_irq)
+SYM_CODE_END(el1_irq)
 
 /*
  * EL0 mode handlers.
  */
        .align  6
-el0_sync:
+SYM_CODE_START_LOCAL_NOALIGN(el0_sync)
        kernel_entry 0
        mov     x0, sp
        bl      el0_sync_handler
        b       ret_to_user
-ENDPROC(el0_sync)
+SYM_CODE_END(el0_sync)
 
 #ifdef CONFIG_COMPAT
        .align  6
-el0_sync_compat:
+SYM_CODE_START_LOCAL_NOALIGN(el0_sync_compat)
        kernel_entry 0, 32
        mov     x0, sp
        bl      el0_sync_compat_handler
        b       ret_to_user
-ENDPROC(el0_sync_compat)
+SYM_CODE_END(el0_sync_compat)
 
        .align  6
-el0_irq_compat:
+SYM_CODE_START_LOCAL_NOALIGN(el0_irq_compat)
        kernel_entry 0, 32
        b       el0_irq_naked
-ENDPROC(el0_irq_compat)
+SYM_CODE_END(el0_irq_compat)
 
-el0_error_compat:
+SYM_CODE_START_LOCAL_NOALIGN(el0_error_compat)
        kernel_entry 0, 32
        b       el0_error_naked
-ENDPROC(el0_error_compat)
+SYM_CODE_END(el0_error_compat)
 #endif
 
        .align  6
-el0_irq:
+SYM_CODE_START_LOCAL_NOALIGN(el0_irq)
        kernel_entry 0
 el0_irq_naked:
        gic_prio_irq_setup pmr=x20, tmp=x0
@@ -696,9 +696,9 @@ el0_irq_naked:
        bl      trace_hardirqs_on
 #endif
        b       ret_to_user
-ENDPROC(el0_irq)
+SYM_CODE_END(el0_irq)
 
-el1_error:
+SYM_CODE_START_LOCAL(el1_error)
        kernel_entry 1
        mrs     x1, esr_el1
        gic_prio_kentry_setup tmp=x2
@@ -706,9 +706,9 @@ el1_error:
        mov     x0, sp
        bl      do_serror
        kernel_exit 1
-ENDPROC(el1_error)
+SYM_CODE_END(el1_error)
 
-el0_error:
+SYM_CODE_START_LOCAL(el0_error)
        kernel_entry 0
 el0_error_naked:
        mrs     x25, esr_el1
@@ -720,7 +720,7 @@ el0_error_naked:
        bl      do_serror
        enable_da_f
        b       ret_to_user
-ENDPROC(el0_error)
+SYM_CODE_END(el0_error)
 
 /*
  * Ok, we need to do extra processing, enter the slow path.