6d637fa560
Large files are cumbersome on some filesystems and can more easily trigger ENOSPC. Some tests use two text sections with output section addresses to test branch ranges. Use two text segments to prevent LLD from filling the gap and unnecessarily increasing the output size. With this change, there is no test/ELF temporary file larger than 100MiB. Reviewed By: psmith Differential Revision: https://reviews.llvm.org/D88037
76 lines
2.3 KiB
ArmAsm
76 lines
2.3 KiB
ArmAsm
// REQUIRES: aarch64
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// RUN: split-file %s %t
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// RUN: llvm-mc -filetype=obj -triple=aarch64 %t/asm -o %t.o
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// RUN: ld.lld --script %t/lds %t.o -o %t/out
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// RUN: llvm-objdump -d --no-show-raw-insn --print-imm-hex %t/out | FileCheck %s
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// RUN: llvm-nm --no-sort --special-syms %t/out | FileCheck --check-prefix=NM %s
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//--- asm
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// Check that we have the out of branch range calculation right. The immediate
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// field is signed so we have a slightly higher negative displacement.
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.section .text_low, "ax", %progbits
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.globl _start
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.type _start, %function
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_start:
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// Need thunk to high_target@plt
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bl high_target
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// Need thunk to .text_high+4
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bl .text_high+4
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ret
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.section .text_high, "ax", %progbits
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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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// No Thunk needed as we are within signed immediate range
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bl _start
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ret
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// CHECK: Disassembly of section .text_low:
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// CHECK-EMPTY:
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// CHECK-NEXT: <_start>:
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// CHECK-NEXT: 2000: bl 0x200c <__AArch64AbsLongThunk_high_target>
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// CHECK-NEXT: 2004: bl 0x201c <__AArch64AbsLongThunk_>
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// CHECK-NEXT: ret
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// CHECK: <__AArch64AbsLongThunk_high_target>:
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// CHECK-NEXT: 200c: ldr x16, 0x2014
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// CHECK-NEXT: br x16
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// CHECK: <$d>:
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// CHECK-NEXT: 2014: 00 20 00 08 .word 0x08002000
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// CHECK-NEXT: 2018: 00 00 00 00 .word 0x00000000
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// CHECK: <__AArch64AbsLongThunk_>:
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// CHECK-NEXT: 201c: ldr x16, 0x2024
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// CHECK-NEXT: 2020: br x16
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// CHECK: <$d>:
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// CHECK-NEXT: 2024: 04 20 00 08 .word 0x08002004
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// CHECK-NEXT: 2028: 00 00 00 00 .word 0x00000000
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// CHECK: Disassembly of section .text_high:
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// CHECK-EMPTY:
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// CHECK-NEXT: <high_target>:
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// CHECK-NEXT: 8002000: bl 0x2000 <_start>
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// CHECK-NEXT: ret
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/// Local symbols copied from %t.o
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// NM: t $x.0
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// NM-NEXT: t $x.1
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/// Local thunk symbols.
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// NM-NEXT: t __AArch64AbsLongThunk_high_target
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// NM-NEXT: t $x
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// NM-NEXT: t $d
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// NM-NEXT: t __AArch64AbsLongThunk_{{$}}
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// NM-NEXT: t $x
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// NM-NEXT: t $d
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/// Global symbols.
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// NM-NEXT: T _start
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// NM-NEXT: T high_target
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//--- lds
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PHDRS {
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low PT_LOAD FLAGS(0x1 | 0x4);
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high PT_LOAD FLAGS(0x1 | 0x4);
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}
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SECTIONS {
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.text_low 0x2000: { *(.text_low) } :low
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.text_high 0x8002000 : { *(.text_high) } :high
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}
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