125 lines
4.5 KiB
ArmAsm
125 lines
4.5 KiB
ArmAsm
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// REQUIRES: arm
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// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
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// RUN: ld.lld %t --shared -o %t.so
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// The output file is large, most of it zeroes. We dissassemble only the
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// parts we need to speed up the test and avoid a large output file
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// RUN: llvm-objdump -d %t.so -start-address=16777220 -stop-address=16777244 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK1 %s
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// RUN: llvm-objdump -d %t.so -start-address=17825800 -stop-address=17825826 -triple=thumbv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK2 %s
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// RUN: llvm-objdump -d %t.so -start-address=17825824 -stop-address=17825892 -triple=armv7a-linux-gnueabihf | FileCheck -check-prefix=CHECK3 %s
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// A branch to a Thunk that we create on pass N, can drift out of range if
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// other Thunks are added in between. In this case we must create a new Thunk
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// for the branch that is in range. We also need to make sure that if the
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// destination of the Thunk is in the PLT the new Thunk also targets the PLT
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.syntax unified
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.thumb
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.macro FUNCTION suff
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.section .text.\suff\(), "ax", %progbits
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.thumb
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.balign 0x80000
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.globl tfunc\suff\()
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.type tfunc\suff\(), %function
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tfunc\suff\():
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bx lr
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.endm
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.globl imported
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.type imported, %function
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.globl imported2
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.type imported2, %function
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.globl imported3
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.type imported3, %function
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.globl imported4
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.type imported4, %function
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FUNCTION 00
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FUNCTION 01
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FUNCTION 02
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FUNCTION 03
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FUNCTION 04
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FUNCTION 05
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FUNCTION 06
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FUNCTION 07
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FUNCTION 08
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FUNCTION 09
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FUNCTION 10
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FUNCTION 11
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FUNCTION 12
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FUNCTION 13
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FUNCTION 14
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FUNCTION 15
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FUNCTION 16
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FUNCTION 17
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FUNCTION 18
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FUNCTION 19
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FUNCTION 20
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FUNCTION 21
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FUNCTION 22
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FUNCTION 23
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FUNCTION 24
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FUNCTION 25
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FUNCTION 26
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FUNCTION 27
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FUNCTION 28
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FUNCTION 29
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FUNCTION 30
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FUNCTION 31
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// Precreated Thunk Pool goes here
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// CHECK1: __ThumbV7PILongThunk_imported:
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// CHECK1-NEXT: 1000004: 40 f2 30 0c movw r12, #48
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// CHECK1-NEXT: 1000008: c0 f2 10 0c movt r12, #16
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// CHECK1-NEXT: 100000c: fc 44 add r12, pc
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// CHECK1-NEXT: 100000e: 60 47 bx r12
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// CHECK1: __ThumbV7PILongThunk_imported2:
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// CHECK1-NEXT: 1000010: 40 f2 34 0c movw r12, #52
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// CHECK1-NEXT: 1000014: c0 f2 10 0c movt r12, #16
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// CHECK1-NEXT: 1000018: fc 44 add r12, pc
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// CHECK1-NEXT: 100001a: 60 47 bx r12
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.section .text.32, "ax", %progbits
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.space 0x80000
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.section .text.33, "ax", %progbits
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.space 0x80000 - 0x14
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.section .text.34, "ax", %progbits
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// Need a Thunk to the PLT entry, can use precreated ThunkSection
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.globl callers
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.type callers, %function
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callers:
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b.w imported
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beq.w imported
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b.w imported2
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// CHECK2: __ThumbV7PILongThunk_imported:
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// CHECK2-NEXT: 1100008: 40 f2 2c 0c movw r12, #44
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// CHECK2-NEXT: 110000c: c0 f2 00 0c movt r12, #0
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// CHECK2-NEXT: 1100010: fc 44 add r12, pc
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// CHECK2-NEXT: 1100012: 60 47 bx r12
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// CHECK2: callers:
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// CHECK2-NEXT: 1100014: ff f6 f6 bf b.w #-1048596 <__ThumbV7PILongThunk_imported>
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// CHECK2-NEXT: 1100018: 3f f4 f6 af beq.w #-20 <__ThumbV7PILongThunk_imported>
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// CHECK2-NEXT: 110001c: ff f6 f8 bf b.w #-1048592 <__ThumbV7PILongThunk_imported2>
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// CHECK3: Disassembly of section .plt:
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// CHECK3-EMPTY:
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// CHECK3-NEXT: $a:
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// CHECK3-NEXT: 1100020: 04 e0 2d e5 str lr, [sp, #-4]!
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// CHECK3-NEXT: 1100024: 00 e6 8f e2 add lr, pc, #0, #12
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// CHECK3-NEXT: 1100028: 01 ea 8e e2 add lr, lr, #4096
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// CHECK3-NEXT: 110002c: dc ff be e5 ldr pc, [lr, #4060]!
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// CHECK3: $d:
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// CHECK3-NEXT: 1100030: d4 d4 d4 d4 .word 0xd4d4d4d4
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// CHECK3-NEXT: 1100034: d4 d4 d4 d4 .word 0xd4d4d4d4
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// CHECK3-NEXT: 1100038: d4 d4 d4 d4 .word 0xd4d4d4d4
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// CHECK3-NEXT: 110003c: d4 d4 d4 d4 .word 0xd4d4d4d4
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// CHECK3: $a:
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// CHECK3-NEXT: 1100040: 00 c6 8f e2 add r12, pc, #0, #12
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// CHECK3-NEXT: 1100044: 01 ca 8c e2 add r12, r12, #4096
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// CHECK3-NEXT: 1100048: c4 ff bc e5 ldr pc, [r12, #4036]!
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// CHECK3: $d:
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// CHECK3-NEXT: 110004c: d4 d4 d4 d4 .word 0xd4d4d4d4
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// CHECK3: $a:
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// CHECK3-NEXT: 1100050: 00 c6 8f e2 add r12, pc, #0, #12
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// CHECK3-NEXT: 1100054: 01 ca 8c e2 add r12, r12, #4096
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// CHECK3-NEXT: 1100058: b8 ff bc e5 ldr pc, [r12, #4024]!
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// CHECK3: $d:
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// CHECK3-NEXT: 110005c: d4 d4 d4 d4 .word 0xd4d4d4d4
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