dbc641deb9
Currently 1 byte global object has a ridiculous 63 bytes redzone. This patch reduces the redzone size to be less than 32 if the size of global object is less than or equal to half of 32 (the minimal size of redzone). A 12 bytes object has a 20 bytes redzone, a 20 bytes object has a 44 bytes redzone. Reviewed By: MaskRay, #sanitizers, vitalybuka Differential Revision: https://reviews.llvm.org/D102469
18 lines
777 B
C++
18 lines
777 B
C++
// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s
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// No alias on Windows but indicators should work.
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// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s
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static int global;
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int main() {
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return global;
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}
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// CHECK-NOT: __odr_asan_gen
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// CHECK-NOT: private alias
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// CHECK: [[VAR:@.*global.*]] ={{.*}} global { i32, [28 x i8] } zeroinitializer, align 32
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// CHECK: @0 = internal global {{.*}} [[VAR]] to i64), {{.*}}, i64 -1 }]
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// CHECK: call void @__asan_register_globals(i64 ptrtoint ([1 x { i64, i64, i64, i64, i64, i64, i64, i64 }]* @0 to i64), i64 1)
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// CHECK: call void @__asan_unregister_globals(i64 ptrtoint ([1 x { i64, i64, i64, i64, i64, i64, i64, i64 }]* @0 to i64), i64 1)
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