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