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cmd/compile: add -asan option

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The -asan option causes the compiler to add instrumentation for the
C/C++ address sanitizer.  Every memory read/write will be replaced
by a call to asanread/asanwrite.

This CL also inserts asan instrumentation during SSA building.

This CL passes tests but is not usable by itself. The actual
implementation of asanread/asanwrite in the runtime package, and
support for -asan in the go tool and tests, will follow in subsequent
CLs.

Updates #44853.

Change-Id: Ia18c9c5d5c351857420d2f6835f0daec2ad31096
Reviewed-on: https://go-review.googlesource.com/c/go/+/298611
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>
This commit is contained in:
fanzha02 2021-01-04 17:14:35 +08:00 • committed by Ian Lance Taylor
parent 60c3069dd8
commit 85b3b4ee03
12 changed files with 58 additions and 10 deletions
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2
src/cmd/compile/doc.go
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@ -44,6 +44,8 @@ Flags:
Print compiler version and exit.
-asmhdr file
Write assembly header to file.
-asan
Insert calls to C/C++ address sanitizer.
-buildid id
Record id as the build id in the export metadata.
-blockprofile file