40 lines
1.1 KiB
ArmAsm
40 lines
1.1 KiB
ArmAsm
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// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
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// RUN: ld.lld %t -o %t2 2>&1
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// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t2 | FileCheck %s
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// REQUIRES: arm
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// Check that the ARM ABI rules for undefined weak symbols are applied.
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// Branch instructions are resolved to the next instruction. Undefined
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// Symbols in relative are resolved to the place so S - P + A = A.
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.syntax unified
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.weak target
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.text
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.global _start
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_start:
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// R_ARM_JUMP24
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b target
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// R_ARM_CALL
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bl target
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// R_ARM_CALL with exchange
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blx target
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// R_ARM_MOVT_PREL
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movt r0, :upper16:target - .
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// R_ARM_MOVW_PREL_NC
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movw r0, :lower16:target - .
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// R_ARM_REL32
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.word target - .
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// CHECK: Disassembly of section .text:
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// 69636 = 0x11004
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// CHECK: 11000: {{.*}} b #-4 <_start+0x4>
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// CHECK-NEXT: 11004: {{.*}} bl #-4 <_start+0x8>
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// blx is transformed into bl so we don't change state
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// CHECK-NEXT: 11008: {{.*}} bl #-4 <_start+0xC>
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// CHECK-NEXT: 1100c: {{.*}} movt r0, #0
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// CHECK-NEXT: 11010: {{.*}} movw r0, #0
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// CHECK: 11014: {{.*}} .word 0x00000000
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