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llvm-mirror/test/Instrumentation/AddressSanitizer/stack-poisoning.ll

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[ASan] Add -asan-module to the ASan .ll tests. After the -asan pass had been split into -asan (function-level) and -asan-module (module-level) some of the tests have silently stopped working, because they didn't instrument the globals anymore. We've decided to have every test using both passes, irrespective of the presence of globals in it. llvm-svn: 204335
2014-03-20 12:16:34 +01:00
; RUN: opt < %s -asan -asan-module -asan-use-after-return -S | FileCheck --check-prefix=CHECK-UAR %s
Remove top-level Clang -fsanitize= flags for optional ASan features. Init-order and use-after-return modes can currently be enabled by runtime flags. use-after-scope mode is not really working at the moment. The only problem I see is that users won't be able to disable extra instrumentation for init-order and use-after-scope by a top-level Clang flag. But this instrumentation was implicitly enabled for quite a while and we didn't hear from users hurt by it. llvm-svn: 210924
2014-06-13 19:53:44 +02:00
; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -S | FileCheck --check-prefix=CHECK-PLAIN %s
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
target datalayout = "e-i64:64-f80:128-s:64-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @Foo(i8*)
define void @Bar() uwtable sanitize_address {
entry:
; CHECK-PLAIN-LABEL: Bar
; CHECK-PLAIN-NOT: label
; CHECK-PLAIN: ret void
; CHECK-UAR-LABEL: Bar
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-27 22:17:42 +01:00
; CHECK-UAR: load i32, i32* @__asan_option_detect_stack_use_after_return
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
; CHECK-UAR: label
[asan] Extend test Summary: PR27453 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23647 llvm-svn: 279109
2016-08-18 20:17:19 +02:00
; CHECK-UAR: call i64 @__asan_stack_malloc_4
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
; CHECK-UAR: label
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones Summary: Reduce store size to avoid leading and trailing zeros. Reviewers: kcc, eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23648 llvm-svn: 279379
2016-08-20 20:34:36 +02:00
; Poison red zones.
[asan] Extend test Summary: PR27453 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23647 llvm-svn: 279109
2016-08-18 20:17:19 +02:00
; CHECK-UAR: store i64 -1007680412564983311
; CHECK-UAR: store i64 72057598113936114
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones Summary: Reduce store size to avoid leading and trailing zeros. Reviewers: kcc, eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23648 llvm-svn: 279379
2016-08-20 20:34:36 +02:00
; CHECK-UAR: store i32 -218959118
; CHECK-UAR: store i64 -868082074056920316
; CHECK-UAR: store i16 -3085
[asan] Extend test Summary: PR27453 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23647 llvm-svn: 279109
2016-08-18 20:17:19 +02:00
; CHECK-UAR: call void @Foo
; CHECK-UAR: call void @Foo
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
; CHECK-UAR: call void @Foo
; If LocalStackBase != OrigStackBase
; CHECK-UAR: label
; Then Block: poison the entire frame.
[asan] Enable new stack poisoning with store instruction by default Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23968 llvm-svn: 279993
2016-08-29 21:28:34 +02:00
; CHECK-UAR: call void @__asan_set_shadow_f5(i64 %{{[0-9]+}}, i64 128)
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones Summary: Reduce store size to avoid leading and trailing zeros. Reviewers: kcc, eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23648 llvm-svn: 279379
2016-08-20 20:34:36 +02:00
; CHECK-UAR-NOT: store i64
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
; CHECK-UAR: label
; Else Block: no UAR frame. Only unpoison the redzones.
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones Summary: Reduce store size to avoid leading and trailing zeros. Reviewers: kcc, eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23648 llvm-svn: 279178
2016-08-19 01:51:15 +02:00
; CHECK-UAR: store i64 0
Revert "[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones" This reverts commit r279178. Speculative revert in hope to fix asan crash on arm. llvm-svn: 279277
2016-08-19 19:15:38 +02:00
; CHECK-UAR: store i64 0
; CHECK-UAR: store i32 0
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones Summary: Reduce store size to avoid leading and trailing zeros. Reviewers: kcc, eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23648 llvm-svn: 279379
2016-08-20 20:34:36 +02:00
; CHECK-UAR: store i64 0
; CHECK-UAR: store i16 0
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
; CHECK-UAR-NOT: store
; CHECK-UAR: label
; Done, no more stores.
; CHECK-UAR-NOT: store
; CHECK-UAR: ret void
%x = alloca [20 x i8], align 16
[asan] Extend test Summary: PR27453 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23647 llvm-svn: 279109
2016-08-18 20:17:19 +02:00
%y = alloca [25 x i8], align 1
%z = alloca [500 x i8], align 1
%xx = getelementptr inbounds [20 x i8], [20 x i8]* %x, i64 0, i64 0
call void @Foo(i8* %xx)
%yy = getelementptr inbounds [25 x i8], [25 x i8]* %y, i64 0, i64 0
call void @Foo(i8* %yy)
%zz = getelementptr inbounds [500 x i8], [500 x i8]* %z, i64 0, i64 0
call void @Foo(i8* %zz)
[asan] don't unpoison redzones on function exit in use-after-return mode. Summary: Before this change the instrumented code before Ret instructions looked like: <Unpoison Frame Redzones> if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> Now the instrumented code looks like: if (Frame != OriginalFrame) // I.e. Frame is fake <Poison Complete Frame> else <Unpoison Frame Redzones> Reviewers: eugenis Reviewed By: eugenis CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2458 llvm-svn: 197907
2013-12-23 15:15:08 +01:00
ret void
}
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