2c1bdd4a08
Following from the discussion in #132224, this seems like the best approach to deal with a mix of XO and RX output sections in the same binary. This change will also simplify the implementation of the PURECODE section flag for AArch64. To control this behaviour, the `--[no-]xosegment` flag is added to LLD (similarly to `--[no-]rosegment`), which determines whether to allow merging XO and RX sections in the same segment. The default value is `--no-xosegment`, which is a breaking change compared to the previous behaviour. Release notes are also added, since this will be a breaking change.
33 lines
1.5 KiB
ArmAsm
33 lines
1.5 KiB
ArmAsm
// REQUIRES: aarch64
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// RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
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// RUN: ld.lld --xosegment %t.o -o %t.so -shared
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// RUN: llvm-readelf -l %t.so | FileCheck --implicit-check-not=LOAD %s
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// RUN: echo ".section .foo,\"ax\"; ret" > %t.s
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// RUN: llvm-mc -filetype=obj -triple=aarch64 %t.s -o %t2.o
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// RUN: ld.lld --xosegment %t.o %t2.o -o %t.so -shared
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// RUN: llvm-readelf -l %t.so | FileCheck --check-prefix=DIFF --implicit-check-not=LOAD %s
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// CHECK: LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x000245 0x000245 R 0x10000
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// CHECK-NEXT: LOAD 0x000248 0x0000000000010248 0x0000000000010248 0x{{.*}} 0x{{.*}} R E 0x10000
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// CHECK-NEXT: LOAD 0x00024c 0x000000000002024c 0x000000000002024c 0x{{.*}} 0x{{.*}} E 0x10000
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// CHECK-NEXT: LOAD 0x000250 0x0000000000030250 0x0000000000030250 0x000070 0x000db0 RW 0x10000
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// CHECK: 01 .dynsym .gnu.hash .hash .dynstr
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// CHECK-NEXT: 02 .text
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// CHECK-NEXT: 03 .foo
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// CHECK-NEXT: 04 .dynamic
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// DIFF: LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x00020d 0x00020d R 0x10000
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// DIFF-NEXT: LOAD 0x000210 0x0000000000010210 0x0000000000010210 0x00000c 0x00000c R E 0x10000
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// DIFF-NEXT: LOAD 0x000220 0x0000000000020220 0x0000000000020220 0x000070 0x000de0 RW 0x10000
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// DIFF: 01 .dynsym .gnu.hash .hash .dynstr
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// DIFF-NEXT: 02 .text .foo
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// DIFF-NEXT: 03 .dynamic
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ret
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.section .foo,"axy"
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ret
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