Some tests in misc/cgo/testsanitizers had been disabled on ppc64le
until recently, due to an intermittent error in the tsan tests,
with the goal of trying to understand the failure.
After further investigation, I found that the code for tsan within
gcc does not work consistently when ASLR is enabled on ppc64le. A
fix for that problem was integrated in gcc 9.
This adds a check to testsanitizers to determine the gcc compiler
version on ppc64le and skip the test if the version is too old.
A similar check is needed for asan too.
Updates #54645
Change-Id: I70717d1aa9e967cf1e871566e72b3862b91fea3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/425355
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Archana Ravindar <aravind5@in.ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
The current implementation of compilerVersion incorrectly gives an
error message that the compiler version is too old even though the
system has a recent compiler. This happens for specifically for the
gcc compiler and causes ASAN tests to be skipped.
Replacing -v with gcc dump version options seems to fix it. Running
./testsanitizers.test -test.v now shows the ASAN tests being run.
--- PASS: TestASAN (16.81s)
--- PASS: TestASAN/asan_useAfterReturn (0.60s)
--- PASS: TestASAN/asan_global5 (0.61s)
--- PASS: TestASAN/asan_unsafe_fail1 (0.73s)
--- PASS: TestASAN/asan_unsafe_fail3 (0.73s)
--- PASS: TestASAN/asan_unsafe_fail2 (0.74s)
--- PASS: TestASAN/asan_global4_fail (0.74s)
--- PASS: TestASAN/asan5_fail (0.74s)
--- PASS: TestASAN/asan3_fail (0.88s)
--- PASS: TestASAN/asan4_fail (0.89s)
--- PASS: TestASAN/asan2_fail (0.99s)
--- PASS: TestASAN/asan_global3_fail (1.00s)
--- PASS: TestASAN/asan_global1_fail (1.01s)
--- PASS: TestASAN/asan1_fail (1.01s)
--- PASS: TestASAN/asan_global2_fail (1.02s)
PASS
Fixes#54370
Change-Id: Iac13a1cf37de54432a6e49555f61e9ec1d781ab8
Reviewed-on: https://go-review.googlesource.com/c/go/+/422574
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Archana Ravindar <aravind5@in.ibm.com>
Reviewed-by: Than McIntosh <thanm@google.com>
If the test hangs due to a deadlock in a subprocess, we want a
goroutine dump of that process to figure out the nature of the
deadlock. SIGQUIT causes the Go runtime to produce exactly
such a dump (unless the runtime itself is badly deadlocked).
For #52998.
Change-Id: Id9b3ba89d8f705e14f6cd789353fc2b7f4774ad3
Reviewed-on: https://go-review.googlesource.com/c/go/+/407954
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
With this patch, -asan option can detect the error memory
access to global variables.
So this patch makes a few changes:
1. Add the asanregisterglobals runtime support function,
which calls asan runtime function _asan_register_globals
to register global variables.
2. Create a new initialization function for the package
being compiled. This function initializes an array of
instrumented global variables and pass it to function
runtime.asanregisterglobals. An instrumented global
variable has trailing redzone.
3. Writes the new size of instrumented global variables
that have trailing redzones into object file.
4. Notice that the current implementation is only compatible with
the ASan library from version v7 to v9. Therefore, using the
-asan option requires that the gcc version is not less than 7
and the clang version is less than 4, otherwise a segmentation
fault will occur. So this patch adds a check on whether the compiler
being used is a supported version in cmd/go.
(This is a redo of CL 401775 with a fix for a build break due to an
intervening commit that removed the internal/execabs package.)
Updates #44853.
Change-Id: I719d4ef2b22cb2d5516e1494cd453c3efb47d6c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/403851
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
With this patch, -asan option can detect the error memory
access to global variables.
So this patch makes a few changes:
1. Add the asanregisterglobals runtime support function,
which calls asan runtime function _asan_register_globals
to register global variables.
2. Create a new initialization function for the package
being compiled. This function initializes an array of
instrumented global variables and pass it to function
runtime.asanregisterglobals. An instrumented global
variable has trailing redzone.
3. Writes the new size of instrumented global variables
that have trailing redzones into object file.
4. Notice that the current implementation is only compatible with
the ASan library from version v7 to v9. Therefore, using the
-asan option requires that the gcc version is not less than 7
and the clang version is less than 4, otherwise a segmentation
fault will occur. So this patch adds a check on whether the compiler
being used is a supported version in cmd/go.
Updates #44853.
Change-Id: Ib877a817209ab2be68a8e22c418fe4a4a20880fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/401775
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
With this patch, -asan option can detect the error memory
access to global variables.
So this patch makes a few changes:
1. Add the asanregisterglobals runtime support function,
which calls asan runtime function _asan_register_globals
to register global variables.
2. Create a new initialization function for the package
being compiled. This function initializes an array of
instrumented global variables and pass it to function
runtime.asanregisterglobals. An instrumented global
variable has trailing redzone.
3. Writes the new size of instrumented global variables
that have trailing redzones into object file.
4. Notice that the current implementation is only compatible with
the ASan library from version v7 to v9. Therefore, using the
-asan option requires that the gcc version is not less than 7
and the clang version is less than 4, otherwise a segmentation
fault will occur. So this patch adds a check on whether the compiler
being used is a supported version in cmd/go.
Change-Id: I664e74dcabf5dc7ed46802859174606454e8f1d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/321715
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Fannie Zhang <Fannie.Zhang@arm.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
It appears that GCC before version 10 doesn't report file/line
location for asan errors.
Change-Id: I03ee24180ba365636596aa2384961df7ce6ed71f
Reviewed-on: https://go-review.googlesource.com/c/go/+/374874
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The current -asan option does not print where the error occurred. The
reason is that the current implementation calls incorrect asan runtime
functions, which do not pass sp and pc where asan runtime functions are
called, and report the stack trace from the native code. But asan runtime
functions are called from cgo on a separated stack, so it cannot dump the
Go stack trace correctly.
The correct asan runtime function we should call is __asan_report_error,
which will pass sp and pc, and report where the error occurred correctly.
This patch fixes this issue.
Add the test cases.
Fixes#50362
Change-Id: I12ee1d46c7ae069ddef3d23f2fe86e112db60045
Reviewed-on: https://go-review.googlesource.com/c/go/+/374395
Trust: Fannie Zhang <Fannie.Zhang@arm.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Add asan tests to check the use of Go with -asan option.
Currenly, the address sanitizer in Go only checks for error
memory access to heap objects.
TODO: Enable check for error memory access to global objects.
Updates #44853.
Change-Id: I83579f229f117b5684a369fc8f365f4dea140648
Reviewed-on: https://go-review.googlesource.com/c/go/+/298615
Trust: fannie zhang <Fannie.Zhang@arm.com>
Run-TryBot: fannie zhang <Fannie.Zhang@arm.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Many uses of Index/IndexByte/IndexRune/Split/SplitN
can be written more clearly using the new Cut functions.
Do that. Also rewrite to other functions if that's clearer.
For #46336.
Change-Id: I68d024716ace41a57a8bf74455c62279bde0f448
Reviewed-on: https://go-review.googlesource.com/c/go/+/351711
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Update references missed in CL 263142.
For #41190
Change-Id: I778760a6a69bd0440fec0848bdef539c9ccb4ee1
GitHub-Last-Rev: dda42b09ff
GitHub-Pull-Request: golang/go#42874
Reviewed-on: https://go-review.googlesource.com/c/go/+/273946
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Zhang <cherryyz@google.com>
Currently, the cmd/dist runs test cases in misc/cgo/testsantizers only
when memeory sanitizer is supported, but the tsan tests in
misc/cgo/testsanitizers do not require support for -msan option, which
makes tsan tests can not be run on some unsupported -msan option platforms.
Therefore, this patch moves the test constraints from cmd/dist to
msan_test.go, so that the tsan tests in misc/cgo/testsanitizers
can be run on any system where the C compiler supports -fsanitize=thread
option.
Change-Id: I779c92eedd0270050f1a0b1a69ecce50c3712bc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/297774
Trust: fannie zhang <Fannie.Zhang@arm.com>
Run-TryBot: fannie zhang <Fannie.Zhang@arm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
If we run 'go test ./...' in the misc module, we don't want to see
errors for these standalone files.
We could instead add +ignore tags to each file individually, but this
is exactly what a testdata directory is for.
Updates #30228
Change-Id: I7047ad888dd6aff701f5982d58b6a79f6a487c58
Reviewed-on: https://go-review.googlesource.com/c/163417
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
This makes it much easier to run individual failing subtests.
Use $(go env CC) instead of always defaulting to clang; this makes it
easier to test with other compilers.
Run C binaries to detect incompatible compiler/kernel pairings instead
of sniffing versions.
updates #21196
Change-Id: I0debb3cc4a4244df44b825157ffdc97b5c09338d
Reviewed-on: https://go-review.googlesource.com/52910
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
