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
39 lines
1.5 KiB
ArmAsm
39 lines
1.5 KiB
ArmAsm
// REQUIRES: arm
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// RUN: llvm-mc --triple=armv7a-linux-gnueabihf -arm-add-build-attributes -filetype=obj -o %t.o %s
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// RUN: ld.lld %t.o --defsym sym=0x13001 -o %t 2>&1 | FileCheck %s --check-prefix=WARN
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// RUN: llvm-objdump --no-show-raw-insn -d %t | FileCheck %s
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/// A similar test to arm-thumb-interwork-notfunc.s this time exercising the
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/// case where a symbol does not have type STT_FUNC but it does have the bottom
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/// bit set. We use absolute symbols to represent assembler labels as the
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/// minimum alignment of a label in code is 2.
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.syntax unified
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.global sym
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.global _start
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.type _start, %function
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.text
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.balign 0x1000
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_start:
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arm_caller:
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.arm
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b sym
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bl sym
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// WARN: branch and link relocation: R_ARM_CALL to non STT_FUNC symbol: sym interworking not performed; consider using directive '.type sym, %function' to give symbol type STT_FUNC if interworking between ARM and Thumb is required
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blx sym
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.thumb
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thumb_caller:
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b sym
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bl sym
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blx sym
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// WARN: branch and link relocation: R_ARM_THM_CALL to non STT_FUNC symbol: sym interworking not performed; consider using directive '.type sym, %function' to give symbol type STT_FUNC if interworking between ARM and Thumb is required
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// CHECK: 00021000 <arm_caller>:
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// CHECK-NEXT: 21000: b 0x13000
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// CHECK-NEXT: 21004: bl 0x13000
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// CHECK-NEXT: 21008: blx 0x13000
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// CHECK: 0002100c <thumb_caller>:
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// CHECK-NEXT: 2100c: b.w 0x13000
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// CHECK-NEXT: 21010: bl 0x13000
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// CHECK-NEXT: 21014: blx 0x13004
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