657e067bb5
This follows other patches that changed printing immediate values of branch instructions to target addresses, see D76580 (x86), D76591 (PPC), D77853 (AArch64). As observing immediate values might sometimes be useful, they are printed as comments for branch instructions. // llvm-objdump -d output (before) 000200b4 <_start>: 200b4: ff ff ff fa blx #-4 <thumb> 000200b8 <thumb>: 200b8: ff f7 fc ef blx #-8 <_start> // llvm-objdump -d output (after) 000200b4 <_start>: 200b4: ff ff ff fa blx 0x200b8 <thumb> @ imm = #-4 000200b8 <thumb>: 200b8: ff f7 fc ef blx 0x200b4 <_start> @ imm = #-8 // GNU objdump -d. 000200b4 <_start>: 200b4: faffffff blx 200b8 <thumb> 000200b8 <thumb>: 200b8: f7ff effc blx 200b4 <_start> Differential Revision: https://reviews.llvm.org/D104701
79 lines
3.3 KiB
ArmAsm
79 lines
3.3 KiB
ArmAsm
// REQUIRES: arm
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// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
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// RUN: echo "SECTIONS { \
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// RUN: . = SIZEOF_HEADERS; \
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// RUN: .text_low : { *(.text_low) *(.text_low2) . = . + 0x2000000 ; *(.text_high) *(.text_high2) } \
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// RUN: } " > %t.script
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// RUN: ld.lld --no-rosegment --script %t.script %t -o %t2
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// RUN: llvm-objdump -d %t2 --start-address=148 --stop-address=188 --triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK1 %s
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// RUN: llvm-objdump -d %t2 --start-address=33554620 --stop-address=33554654 --triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK2 %s
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// Test that range extension thunks can handle location expressions within
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// a Section Description
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.syntax unified
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.section .text_low, "ax", %progbits
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.thumb
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.globl _start
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_start: bx lr
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.globl low_target
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.type low_target, %function
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low_target:
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bl high_target
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bl high_target2
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.section .text_low2, "ax", %progbits
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.thumb
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.globl low_target2
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.type low_target2, %function
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low_target2:
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bl high_target
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bl high_target2
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// CHECK1: Disassembly of section .text_low:
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// CHECK1-EMPTY:
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// CHECK1-NEXT: <_start>:
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// CHECK1-NEXT: 94: 70 47 bx lr
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// CHECK1: <low_target>:
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// CHECK1-NEXT: 96: 00 f0 03 f8 bl 0xa0 <__Thumbv7ABSLongThunk_high_target>
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// CHECK1-NEXT: 9a: 00 f0 06 f8 bl 0xaa <__Thumbv7ABSLongThunk_high_target2>
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// CHECK1: <__Thumbv7ABSLongThunk_high_target>:
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// CHECK1-NEXT: a0: 40 f2 bd 0c movw r12, #189
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// CHECK1-NEXT: a4: c0 f2 00 2c movt r12, #512
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// CHECK1-NEXT: a8: 60 47 bx r12
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// CHECK1: <__Thumbv7ABSLongThunk_high_target2>:
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// CHECK1-NEXT: aa: 40 f2 d9 0c movw r12, #217
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// CHECK1-NEXT: ae: c0 f2 00 2c movt r12, #512
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// CHECK1-NEXT: b2: 60 47 bx r12
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// CHECK1: <low_target2>:
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// CHECK1-NEXT: b4: ff f7 f4 ff bl 0xa0 <__Thumbv7ABSLongThunk_high_target>
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// CHECK1-NEXT: b8: ff f7 f7 ff bl 0xaa <__Thumbv7ABSLongThunk_high_target2>
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.section .text_high, "ax", %progbits
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.thumb
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.globl high_target
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.type high_target, %function
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high_target:
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bl low_target
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bl low_target2
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.section .text_high2, "ax", %progbits
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.thumb
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.globl high_target2
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.type high_target2, %function
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high_target2:
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bl low_target
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bl low_target2
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// CHECK2: <high_target>:
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// CHECK2-NEXT: 20000bc: 00 f0 02 f8 bl 0x20000c4 <__Thumbv7ABSLongThunk_low_target>
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// CHECK2-NEXT: 20000c0: 00 f0 05 f8 bl 0x20000ce <__Thumbv7ABSLongThunk_low_target2>
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// CHECK2: <__Thumbv7ABSLongThunk_low_target>:
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// CHECK2-NEXT: 20000c4: 40 f2 97 0c movw r12, #151
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// CHECK2-NEXT: 20000c8: c0 f2 00 0c movt r12, #0
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// CHECK2-NEXT: 20000cc: 60 47 bx r12
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// CHECK2: <__Thumbv7ABSLongThunk_low_target2>:
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// CHECK2-NEXT: 20000ce: 40 f2 b5 0c movw r12, #181
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// CHECK2-NEXT: 20000d2: c0 f2 00 0c movt r12, #0
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// CHECK2-NEXT: 20000d6: 60 47 bx r12
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// CHECK2: <high_target2>:
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// CHECK2-NEXT: 20000d8: ff f7 f4 ff bl 0x20000c4 <__Thumbv7ABSLongThunk_low_target>
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// CHECK2-NEXT: 20000dc: ff f7 f7 ff bl 0x20000ce <__Thumbv7ABSLongThunk_low_target2>
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