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llvm-6502/test/Instrumentation/AddressSanitizer/instrument_initializer_metadata.ll

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[asan] Split AddressSanitizer into two passes (FunctionPass, ModulePass), LLVM part. This requires a clang part which will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28 10:31:36 +00:00
; RUN: opt < %s -asan -asan-module -asan-initialization-order -S | FileCheck %s
[asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21 08:24:25 +00:00
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
@xxx = internal global i32 0, align 4 ; With dynamic initializer.
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
@XXX = global i32 0, align 4 ; With dynamic initializer.
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
@yyy = internal global i32 0, align 4 ; W/o dynamic initializer.
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
@YYY = global i32 0, align 4 ; W/o dynamic initializer.
[asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21 08:24:25 +00:00
; Clang will emit the following metadata identifying @xxx as dynamically
; initialized.
!0 = metadata !{i32* @xxx}
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
!1 = metadata !{i32* @XXX}
!llvm.asan.dynamically_initialized_globals = !{!0, !1}
[asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21 08:24:25 +00:00
define i32 @initializer() uwtable {
entry:
ret i32 42
}
define internal void @__cxx_global_var_init() section ".text.startup" {
entry:
%call = call i32 @initializer()
store i32 %call, i32* @xxx, align 4
ret void
}
Unify clang/llvm attributes for asan/tsan/msan (LLVM part) These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
define internal void @_GLOBAL__I_a() sanitize_address section ".text.startup" {
[asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21 08:24:25 +00:00
entry:
call void @__cxx_global_var_init()
ret void
}
; Clang indicated that @xxx was dynamically initailized.
; __asan_{before,after}_dynamic_init should be called from _GLOBAL__I_a
; CHECK: define internal void @_GLOBAL__I_a
; CHECK-NOT: ret
; CHECK: call void @__asan_before_dynamic_init
; CHECK: call void @__cxx_global_var_init
; CHECK: call void @__asan_after_dynamic_init
; CHECK: ret
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
; Check that xxx is instrumented.
Unify clang/llvm attributes for asan/tsan/msan (LLVM part) These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
define void @touch_xxx() sanitize_address {
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
store i32 0, i32 *@xxx, align 4
ret void
; CHECK: define void @touch_xxx
; CHECK: call void @__asan_report_store4
; CHECK: ret void
}
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
; Check that XXX is instrumented.
Unify clang/llvm attributes for asan/tsan/msan (LLVM part) These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
define void @touch_XXX() sanitize_address {
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
store i32 0, i32 *@XXX, align 4
ret void
; CHECK: define void @touch_XXX
; CHECK: call void @__asan_report_store4
; CHECK: ret void
}
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
; Check that yyy is NOT instrumented (as it does not have dynamic initializer).
Unify clang/llvm attributes for asan/tsan/msan (LLVM part) These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
define void @touch_yyy() sanitize_address {
[asan] make sure that linker-initialized globals (non-extern) are not instrumented even in -asan-initialization-order mode. This time with a test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:00:01 +00:00
store i32 0, i32 *@yyy, align 4
ret void
; CHECK: define void @touch_yyy
; CHECK-NOT: call void @__asan_report_store4
; CHECK: ret void
}
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
; Check that YYY is NOT instrumented (as it does not have dynamic initializer).
Unify clang/llvm attributes for asan/tsan/msan (LLVM part) These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26 06:58:09 +00:00
define void @touch_YYY() sanitize_address {
[asan] don't instrument linker-initialized globals even with external linkage in -asan-initialization-order mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20 13:11:32 +00:00
store i32 0, i32 *@YYY, align 4
ret void
; CHECK: define void @touch_YYY
; CHECK-NOT: call void @__asan_report_store4
; CHECK: ret void
}
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