arm: Do not compile vector table when SYS_NO_VECTOR_TABLE is enabled
authorPali Rohár <pali@kernel.org>
Wed, 6 Apr 2022 14:20:19 +0000 (16:20 +0200)
committerStefan Roese <sr@denx.de>
Thu, 21 Apr 2022 10:31:36 +0000 (12:31 +0200)
Vector table is not used when SYS_NO_VECTOR_TABLE is enabled.
So do not compile it and reduce image size.

Signed-off-by: Pali Rohár <pali@kernel.org>
arch/arm/lib/vectors.S

index 56f3681..a54c84b 100644 (file)
@@ -24,6 +24,7 @@
 #else
        b       reset
 #endif
+#if !CONFIG_IS_ENABLED(SYS_NO_VECTOR_TABLE)
        ldr     pc, _undefined_instruction
        ldr     pc, _software_interrupt
        ldr     pc, _prefetch_abort
@@ -31,6 +32,7 @@
        ldr     pc, _not_used
        ldr     pc, _irq
        ldr     pc, _fiq
+#endif
        .endm
 
 
@@ -87,6 +89,7 @@ _start:
        ARM_VECTORS
 #endif /* !defined(CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK) */
 
+#if !CONFIG_IS_ENABLED(SYS_NO_VECTOR_TABLE)
 /*
  *************************************************************************
  *
@@ -118,6 +121,7 @@ _irq:                       .word irq
 _fiq:                  .word fiq
 
        .balignl 16,0xdeadbeef
+#endif
 
 /*
  *************************************************************************
@@ -131,6 +135,7 @@ _fiq:                       .word fiq
 
 #ifdef CONFIG_SPL_BUILD
 
+#if !CONFIG_IS_ENABLED(SYS_NO_VECTOR_TABLE)
        .align  5
 undefined_instruction:
 software_interrupt:
@@ -141,6 +146,7 @@ irq:
 fiq:
 1:
        b       1b                      /* hang and never return */
+#endif
 
 #else  /* !CONFIG_SPL_BUILD */