forked from OSchip/llvm-project
74 lines
2.3 KiB
ArmAsm
74 lines
2.3 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple=thumbv7a-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: .R_ARM_PC11_1 : { *(.R_ARM_PC11_1) } \
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// RUN: .caller : { *(.caller) } \
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// RUN: .R_ARM_PC11_2 : { *(.R_ARM_PC11_2) } \
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// RUN: .text : { *(.text) } } " > %t.script
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// RUN: ld.lld --script %t.script %t %S/Inputs/arm-thumb-narrow-branch.o -o %t2 2>&1
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// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2 | FileCheck %s
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// REQUIRES: arm
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// Test the R_ARM_PC11 relocation which is used with the narrow encoding of B.N
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// the source of these relocations is a binary file arm-thumb-narrow-branch.o
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// which has been assembled with the GNU assembler as llvm-mc doesn't emit it
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// as the range of +-2048 bytes is too small to be practically useful for out
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// of section branches.
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.syntax unified
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.global callee_low_far
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.type callee_low_far,%function
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callee_low_far = 0x809
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.section .R_ARM_PC11_1,"ax",%progbits
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.thumb
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.balign 0x1000
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.type callee_low,%function
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.globl callee_low
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callee_low:
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bx lr
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.text
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.align 2
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.thumb
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.globl _start
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.type _start, %function
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_start:
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bl callers
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bx lr
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.section .R_ARM_PC11_2,"ax",%progbits
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.thumb
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.align 2
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.type callee_high,%function
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.globl callee_high
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callee_high:
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bx lr
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.global callee_high_far
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.type callee_high_far,%function
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callee_high_far = 0x180d
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// CHECK: Disassembly of section .R_ARM_PC11_1:
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// CHECK-NEXT: callee_low:
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// CHECK-NEXT: 1000: 70 47 bx lr
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// CHECK-NEXT: Disassembly of section .caller:
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// CHECK-NEXT: callers:
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// 1004 - 0x800 (2048) + 4 = 0x808 = callee_low_far
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// CHECK-NEXT: 1004: 00 e4 b #-2048
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// 1006 - 0xa (10) + 4 = 0x1000 = callee_low
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// CHECK-NEXT: 1006: fb e7 b #-10
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// 1008 + 4 + 4 = 0x1010 = callee_high
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// CHECK-NEXT: 1008: 02 e0 b #4
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// 100a + 0x7fe (2046) + 4 = 0x180c = callee_high_far
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// CHECK-NEXT: 100a: ff e3 b #2046
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// CHECK-NEXT: 100c: 70 47 bx lr
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// CHECK-NEXT: 100e: 00 bf nop
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// CHECK-NEXT: Disassembly of section .R_ARM_PC11_2:
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// CHECK-NEXT: callee_high:
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// CHECK-NEXT: 1010: 70 47 bx lr
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// CHECK-NEXT: Disassembly of section .text:
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// CHECK-NEXT: _start:
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// CHECK-NEXT: 1014: ff f7 f6 ff bl #-20
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// CHECK-NEXT: 1018: 70 47 bx lr
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