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# REQUIRES: aarch64
## Old versions of Android (Android 11 & 12) have very strict parsing logic on
## the layout of the ELF note. This test ensures that backwards compatibility is
## maintained, i.e. new versions of the linker will still produce binaries that
## can be run on these versions of Android.
# RUN: llvm-mc --filetype=obj -triple=aarch64-none-linux-android %s -o %t.o
# RUN: ld.lld -shared --android-memtag-mode=async --android-memtag-heap %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,HEAP,NOSTACK,ASYNC
# RUN: ld.lld -shared --android-memtag-mode=sync --android-memtag-heap %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,HEAP,NOSTACK,SYNC
# RUN: ld.lld -shared --android-memtag-mode=async --android-memtag-stack %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,NOHEAP,STACK,ASYNC
# RUN: ld.lld -shared --android-memtag-mode=sync --android-memtag-stack %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,NOHEAP,STACK,SYNC
# RUN: ld.lld -shared --android-memtag-mode=async --android-memtag-heap \
# RUN: --android-memtag-stack %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,HEAP,STACK,ASYNC
# RUN: ld.lld -shared --android-memtag-mode=sync --android-memtag-heap \
# RUN: --android-memtag-stack %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=CHECK,HEAP,STACK,SYNC
# RUN: ld.lld -shared --android-memtag-heap %t.o -o %t 2>&1 | \
# RUN: FileCheck %s --check-prefixes=MISSING-MODE
# RUN: ld.lld -shared --android-memtag-stack %t.o -o %t 2>&1 | \
# RUN: FileCheck %s --check-prefixes=MISSING-MODE
# RUN: ld.lld -shared --android-memtag-heap --android-memtag-stack %t.o -o %t 2>&1 | \
# RUN: FileCheck %s --check-prefixes=MISSING-MODE
# MISSING-MODE: warning: --android-memtag-mode is unspecified, leaving
# MISSING-MODE: --android-memtag-{{(heap|stack)}} a no-op
# CHECK: Memtag Dynamic Entries
# SYNC: AARCH64_MEMTAG_MODE: Synchronous (0)
# ASYNC: AARCH64_MEMTAG_MODE: Asynchronous (1)
# HEAP: AARCH64_MEMTAG_HEAP: Enabled (1)
# NOHEAP: AARCH64_MEMTAG_HEAP: Disabled (0)
# STACK: AARCH64_MEMTAG_STACK: Enabled (1)
# NOSTACK: AARCH64_MEMTAG_STACK: Disabled (0)
# CHECK: Memtag Android Note
# ASYNC-NEXT: Tagging Mode: ASYNC
# SYNC-NEXT: Tagging Mode: SYNC
# HEAP-NEXT: Heap: Enabled
# NOHEAP-NEXT: Heap: Disabled
# STACK-NEXT: Stack: Enabled
# NOSTACK-NEXT: Stack: Disabled
# RUN: not ld.lld -shared --android-memtag-mode=asymm --android-memtag-heap 2>&1 | \
# RUN: FileCheck %s --check-prefix=BAD-MODE
# BAD-MODE: error: unknown --android-memtag-mode value: "asymm", should be one of
# BAD-MODE: {async, sync, none}
# RUN: ld.lld -static --android-memtag-mode=sync --android-memtag-heap \
# RUN: --android-memtag-stack %t.o -o %t
# RUN: llvm-readelf --memtag %t | FileCheck %s --check-prefixes=STATIC
# STATIC: Memtag Dynamic Entries:
# STATIC-NEXT: < none found >
# STATIC: Memtag Android Note:
# STATIC-NEXT: Tagging Mode: SYNC
# STATIC-NEXT: Heap: Enabled
# STATIC-NEXT: Stack: Enabled
.globl _start
_start:
ret
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