55 lines
1.4 KiB
ArmAsm
55 lines
1.4 KiB
ArmAsm
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# REQUIRES: aarch64
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# RUN: rm -rf %t && split-file %s %t
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# RUN: llvm-mc --triple=aarch64 --filetype=obj -o %t.o %t/a.s
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# RUN: ld.lld --shared -T %t/largegap.lds -z force-bti %t.o -o %t.elf
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# RUN: llvm-objdump -d %t.elf | FileCheck %s
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#--- largegap.lds
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SECTIONS {
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.plt : { *(.plt) }
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.text.near 0x1000 : AT(0x1000) { *(.text.near) }
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.text.far 0xf0000000 : AT(0xf0000000) { *(.text.far) }
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}
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#--- a.s
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# CHECK: <.plt>:
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# CHECK-NEXT: bti c
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## foo@plt is targeted by a range extension thunk with an indirect branch.
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## Add a bti c instruction.
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# CHECK: <foo@plt>:
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# CHECK-NEXT: bti c
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## biz is not targeted by a thunk using an indirect branch, so no need for bti c.
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# CHECK: <biz@plt>:
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# CHECK-NEXT: adrp x16, {{.*}} <func>
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# CHECK: <bar>:
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# CHECK-NEXT: bl {{.*}} <foo@plt>
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# CHECK-NEXT: bl {{.*}} <biz@plt>
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# CHECK: <func>:
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# CHECK-NEXT: bl {{.*}} <__AArch64ADRPThunk_foo>
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# CHECK: <__AArch64ADRPThunk_foo>:
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# CHECK-NEXT: adrp x16, 0x0 <foo>
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# CHECK-NEXT: add x16, x16, {{.*}}
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# CHECK-NEXT: br x16
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.global foo
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.global biz
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.section .text.near, "ax", %progbits
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bar:
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.type bar, %function
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bl foo
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bl biz
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ret
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.section .text.far, "ax", %progbits
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func:
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.type func, %function
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bl foo
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ret
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