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2c21fe4650
If a section is rw, it is irrelevant if the dynamic linker will write to it or not. It looks like llvm implemented this because gcc was doing it. It looks like gcc implemented this in the hope that it would put all the relocated items close together and speed up the dynamic linker. There are two problem with this: * It doesn't work. Both bfd and gold will map .data.rel to .data and concatenate the input sections in the order they are seen. * If we want a feature like that, it can be implemented directly in the linker since it knowns where the dynamic relocations are. llvm-svn: 253436
62 lines
1.9 KiB
LLVM
62 lines
1.9 KiB
LLVM
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-android -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic -O3 \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -O3 \
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; RUN: | FileCheck -check-prefix=ARM_32 %s
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; Make sure that TLS symbols are emitted in expected order.
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@external_x = external thread_local global i32, align 8
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@external_y = thread_local global i8 7, align 2
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@internal_y = internal thread_local global i64 9, align 16
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define i32* @get_external_x() {
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entry:
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ret i32* @external_x
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}
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define i8* @get_external_y() {
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entry:
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ret i8* @external_y
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}
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define i64* @get_internal_y() {
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entry:
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ret i64* @internal_y
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}
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; ARM_32-LABEL: get_external_x:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.external_x
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; ARM_32-LABEL: get_external_y:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.external_y
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; ARM_32-LABEL: get_internal_y:
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; ARM_32: bl __emutls_get_address
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; ARM_32: .long __emutls_v.internal_y
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; ARM_32-NOT: __emutls_t.external_x
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; ARM_32-NOT: __emutls_v.external_x:
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; ARM_32: .data
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; ARM_32: .align 2
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; ARM_32-LABEL: __emutls_v.external_y:
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; ARM_32-NEXT: .long 1
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; ARM_32-NEXT: .long 2
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; ARM_32-NEXT: .long 0
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; ARM_32-NEXT: .long __emutls_t.external_y
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; ARM_32: .section .rodata,
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; ARM_32-LABEL: __emutls_t.external_y:
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; ARM_32-NEXT: .byte 7
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; ARM_32: .data
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; ARM_32: .align 2
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; ARM_32-LABEL: __emutls_v.internal_y:
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; ARM_32-NEXT: .long 8
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; ARM_32-NEXT: .long 16
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; ARM_32-NEXT: .long 0
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; ARM_32-NEXT: .long __emutls_t.internal_y
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; ARM_32-LABEL: __emutls_t.internal_y:
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; ARM_32-NEXT: .long 9
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; ARM_32-NEXT: .long 0
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