forked from OSchip/llvm-project
62 lines
1.6 KiB
ArmAsm
62 lines
1.6 KiB
ArmAsm
// REQUIRES: arm
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// RUN: split-file %s %t
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// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %t/test.s -o %t.o
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// RUN: ld.lld --script %t/script %t.o -o %t2
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// RUN: llvm-objdump --no-show-raw-insn -d %t2 | FileCheck %s
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/// Test that we can reuse thunks between Arm and Thumb callers
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/// using a BL. Expect two thunks, one for far, one for far2.
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//--- script
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SECTIONS {
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.text 0x10000 : { *(.text) }
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.text.far 0x10000000 : AT (0x10000000) { *(.far) }
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}
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//--- test.s
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.syntax unified
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.text
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.globl _start
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.type _start, %function
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.arm
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_start:
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bl far
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.thumb
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bl far
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bl far2
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.arm
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bl far2
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// CHECK: 00010000 <_start>:
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// CHECK-NEXT: 10000: bl 0x10010 <__ARMv7ABSLongThunk_far>
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// CHECK: 00010004 <$t.1>:
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// CHECK-NEXT: 10004: blx 0x10010 <__ARMv7ABSLongThunk_far>
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// CHECK-NEXT: 10008: bl 0x1001c <__Thumbv7ABSLongThunk_far2>
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// CHECK: 0001000c <$a.2>:
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// CHECK-NEXT: 1000c: blx 0x1001c <__Thumbv7ABSLongThunk_far2>
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// CHECK: 00010010 <__ARMv7ABSLongThunk_far>:
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// CHECK-NEXT: 10010: movw r12, #0
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// CHECK-NEXT: 10014: movt r12, #4096
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// CHECK-NEXT: 10018: bx r12
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// CHECK: 0001001c <__Thumbv7ABSLongThunk_far2>:
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// CHECK-NEXT: 1001c: movw r12, #4
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// CHECK-NEXT: 10020: movt r12, #4096
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// CHECK-NEXT: 10024: bx r12
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.section .text.far, "ax", %progbits
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.globl far
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.type far, %function
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far:
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bx lr
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.globl far2
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.type far2, %function
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far2:
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bx lr
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// CHECK: Disassembly of section .text.far:
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// CHECK: 10000000 <far>:
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// CHECK-NEXT: 10000000: bx lr
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// CHECK: 10000004 <far2>:
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// CHECK-NEXT: 10000004: bx lr
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