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87383e408d
See http://lists.llvm.org/pipermail/llvm-dev/2020-April/140549.html For the record, GNU ld changed to 64k max page size in 2014 https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=7572ca8989ead4c3425a1500bc241eaaeffa2c89 "[RFC] ld/ARM: Increase maximum page size to 64kB" Android driver forced 4k page size in AArch64 (D55029) and ARM (D77746). A binary linked with max-page-size=4096 does not run on a system with a higher page size configured. There are some systems out there that do this and it leads to the binary getting `Killed!` by the kernel. In the non-linker-script cases, when linked with -z noseparate-code (default), the max-page-size increase should not cause any size difference. There may be some VMA usage differences, though. Reviewed By: psmith, MaskRay Differential Revision: https://reviews.llvm.org/D77330
33 lines
1.1 KiB
ArmAsm
33 lines
1.1 KiB
ArmAsm
// REQUIRES: arm
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// RUN: llvm-mc %s --arm-add-build-attributes --triple=armv7a-linux-gnueabihf --filetype=obj -o %t.o
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// RUN: ld.lld %t.o -o %t
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// RUN: llvm-objdump --triple=thumbv7a -d --start-address=0x2200b4 --stop-address=0x2200be %t | FileCheck %s
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/// Create a conditional branch too far away from a precreated thunk
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/// section. This will need a thunk section created within range.
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.syntax unified
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.thumb
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.section .text.0, "ax", %progbits
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.space 2 * 1024 * 1024
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.globl _start
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.type _start, %function
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_start:
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/// Range of +/- 1 Megabyte, new ThunkSection will need creating after
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/// .text.1
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beq.w target
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.section .text.1, "ax", %progbits
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bx lr
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// CHECK: <_start>:
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// CHECK-NEXT: 2200b4: 00 f0 00 80 beq.w #0
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// CHECK: <__Thumbv7ABSLongThunk_target>:
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// CHECK-NEXT: 2200b8: 00 f0 01 90 b.w #12582914
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// CHECK: 2200bc: 70 47 bx lr
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.section .text.2, "ax", %progbits
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.space 12 * 1024 * 1024
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.globl target
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.type target, %function
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target: bx lr
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