From 5679a3ce876696422717e2a4233acdb7719f0108 Mon Sep 17 00:00:00 2001
From: Maksim Panchenko <maks@fb.com>
Date: Fri, 1 Apr 2022 16:43:21 -0700
Subject: [PATCH] [BOLT][test] Fix AArch64 cross-platform tests

Use target-specific flags for building AArch64 non-runnable tests.

Reviewed By: yota9

Differential Revision: https://reviews.llvm.org/D122520
---
 bolt/test/AArch64/double_jump.cpp  | 2 +-
 bolt/test/AArch64/lit.local.cfg    | 5 +++++
 bolt/test/AArch64/tailcall_traps.s | 8 ++++----
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/bolt/test/AArch64/double_jump.cpp b/bolt/test/AArch64/double_jump.cpp
index 180b566..1faae98 100644
--- a/bolt/test/AArch64/double_jump.cpp
+++ b/bolt/test/AArch64/double_jump.cpp
@@ -52,4 +52,4 @@ unsigned long foo(unsigned long count) {
   return count;
 }
 
-int main(int argc, const char *argv[]) { return foo(38); }
+extern "C" int _start() { return foo(38); }
diff --git a/bolt/test/AArch64/lit.local.cfg b/bolt/test/AArch64/lit.local.cfg
index b565c79..f3c0e3f 100644
--- a/bolt/test/AArch64/lit.local.cfg
+++ b/bolt/test/AArch64/lit.local.cfg
@@ -1,2 +1,7 @@
 if config.host_arch not in ['aarch64']:
     config.unsupported = True
+
+config.substitutions.insert(
+    0, ('%cflags',
+        '%cflags --target=aarch64-pc-linux -nostartfiles -nostdlib -fuse-ld=lld'
+        ' -Wl,--unresolved-symbols=ignore-all'))
diff --git a/bolt/test/AArch64/tailcall_traps.s b/bolt/test/AArch64/tailcall_traps.s
index 2a1535d..26f0a39 100644
--- a/bolt/test/AArch64/tailcall_traps.s
+++ b/bolt/test/AArch64/tailcall_traps.s
@@ -17,12 +17,12 @@
 
   .text
   .align 4
-  .global main
-  .type main, %function
-main:
+  .global _start
+  .type _start, %function
+_start:
   nop
   ret
-  .size main, .-main
+  .size _start, .-_start
 
   .global foo
   .type foo, %function
-- 
2.7.4