7c2f276269
Under NPM, the asan-globals-md analysis is required but cannot be run
within the asan function pass due to module analyses not being able to
run from a function pass. So this pins all tests using "-asan" to the
legacy PM and adds a corresponding RUN line with
-passes='require<asan-globals-md>,function(asan)'.
Now all tests in Instrumentation/AddressSanitizer pass when
-enable-new-pm is by default on.
Tests were automatically converted using the following python script and
failures were manually fixed up.
import sys
for i in sys.argv:
with open(i, 'r') as f:
s = f.read()
with open(i, 'w') as f:
for l in s.splitlines():
if "RUN:" in l and ' -asan -asan-module ' in l and '\\' not in l:
f.write(l.replace(' -asan -asan-module ', ' -asan -asan-module -enable-new-pm=0 '))
f.write('\n')
f.write(l.replace(' -asan -asan-module ', " -passes='require<asan-globals-md>,function(asan),module(asan-module)' "))
f.write('\n')
elif "RUN:" in l and ' -asan ' in l and '\\' not in l:
f.write(l.replace(' -asan ', ' -asan -enable-new-pm=0 '))
f.write('\n')
f.write(l.replace(' -asan ', " -passes='require<asan-globals-md>,function(asan)' "))
f.write('\n')
else:
f.write(l)
f.write('\n')
See https://bugs.llvm.org/show_bug.cgi?id=46611.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D83921
61 lines
2.1 KiB
LLVM
61 lines
2.1 KiB
LLVM
; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -asan-use-after-return -S | FileCheck --check-prefix=CHECK-UAR %s
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; RUN: opt < %s -passes='asan-pipeline' -asan-use-after-return -S | FileCheck --check-prefix=CHECK-UAR %s
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; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -asan-use-after-return=0 -S | FileCheck --check-prefix=CHECK-PLAIN %s
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; RUN: opt < %s -passes='asan-pipeline' -asan-use-after-return=0 -S | FileCheck --check-prefix=CHECK-PLAIN %s
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target datalayout = "e-i64:64-f80:128-s:64-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @Foo(i8*)
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define void @Bar() uwtable sanitize_address {
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entry:
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; CHECK-PLAIN-LABEL: Bar
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; CHECK-PLAIN-NOT: label
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; CHECK-PLAIN: ret void
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; CHECK-UAR-LABEL: Bar
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; CHECK-UAR: load i32, i32* @__asan_option_detect_stack_use_after_return
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; CHECK-UAR: label
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; CHECK-UAR: call i64 @__asan_stack_malloc_4
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; CHECK-UAR: label
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; Poison red zones.
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; CHECK-UAR: store i64 -1007680412564983311
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; CHECK-UAR: store i64 72057598113936114
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; CHECK-UAR: store i32 -218959118
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; CHECK-UAR: store i64 -868082074056920316
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; CHECK-UAR: store i16 -3085
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; CHECK-UAR: call void @Foo
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; CHECK-UAR: call void @Foo
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; CHECK-UAR: call void @Foo
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; If LocalStackBase != OrigStackBase
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; CHECK-UAR: label
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; Then Block: poison the entire frame.
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; CHECK-UAR: call void @__asan_set_shadow_f5(i64 %{{[0-9]+}}, i64 128)
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; CHECK-UAR-NOT: store i64
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; CHECK-UAR: label
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; Else Block: no UAR frame. Only unpoison the redzones.
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; CHECK-UAR: store i64 0
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; CHECK-UAR: store i64 0
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; CHECK-UAR: store i32 0
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; CHECK-UAR: store i64 0
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; CHECK-UAR: store i16 0
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; CHECK-UAR-NOT: store
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; CHECK-UAR: label
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; Done, no more stores.
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; CHECK-UAR-NOT: store
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; CHECK-UAR: ret void
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%x = alloca [20 x i8], align 16
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%y = alloca [25 x i8], align 1
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%z = alloca [500 x i8], align 1
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%xx = getelementptr inbounds [20 x i8], [20 x i8]* %x, i64 0, i64 0
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call void @Foo(i8* %xx)
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%yy = getelementptr inbounds [25 x i8], [25 x i8]* %y, i64 0, i64 0
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call void @Foo(i8* %yy)
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%zz = getelementptr inbounds [500 x i8], [500 x i8]* %z, i64 0, i64 0
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call void @Foo(i8* %zz)
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ret void
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}
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