[llvm] r292862 - [sanitizer-coverage] emit __sanitizer_cov_trace_pc_guard w/o a preceding 'if' by default. Update the docs, also add deprecation notes around other parts of sanitizer coverage
Kostya Serebryany via llvm-commits
llvm-commits at lists.llvm.org
Tue Jan 24 11:29:24 PST 2017
Hi Bill,
thanks for the report.
Unfortunately, I don't have anyone working on the PPC side at the moment
and the test passes on x86.
So, the only thing I can propose now is to disable this test on PPC.
(Maybe it's not that bad, I was going to kill at least some of the related
code this year).
--kcc
On Tue, Jan 24, 2017 at 8:44 AM, Bill Seurer <seurer at linux.vnet.ibm.com>
wrote:
> This broke the powerpc sanitizers.
>
> updatellvm 292861
> ninja
> ninja check-asan
> Testing Time: 29.65s
> Expected Passes : 457
> Expected Failures : 1
> Unsupported Tests : 157
>
> updatellvm 292862
> ninja
> ninja check-asan
>
> FAIL: AddressSanitizer-powerpc64le-linux :: TestCases/Posix/coverage-direct.cc
> (528 of 615)
> ******************** TEST 'AddressSanitizer-powerpc64le-linux ::
> TestCases/Posix/coverage-direct.cc' FAILED ********************
> Script:
> --
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64
> -fsanitize-coverage=func -DSHARED /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc -shared
> -o /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp).dynamic.so
> -fPIC
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64
> -fsanitize-coverage=func /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc -ldl -o
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> rm -rf /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal
> env ASAN_OPTIONS=coverage=1:coverage_direct=0:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal/*.sancov
> >/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/tes
> t/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverag
> e-direct/normal/out.txt
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> env ASAN_OPTIONS=coverage=1:coverage_direct=1:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> cd /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py rawunpack
> *.sancov.raw
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print *.sancov
> >out.txt
> cd ../..
> diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64 -fsanitize-coverage=bb
> -DSHARED /home/seurer/llvm/llvm-test2/projects/compiler-rt/test/asan/
> TestCases/Posix/coverage-direct.cc -shared -o
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp).dynamic.so
> -fPIC
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64 -fsanitize-coverage=bb
> -DSO_DIR=\"/home/seurer/llvm/build/llvm-test2/projects/compi
> ler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output\"
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/test/asan/
> TestCases/Posix/coverage-direct.cc -ldl -o /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct.cc.tmp
> rm -rf /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal
> env ASAN_OPTIONS=coverage=1:coverage_direct=0:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal/*.sancov
> >/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/tes
> t/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverag
> e-direct/normal/out.txt
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> env ASAN_OPTIONS=coverage=1:coverage_direct=1:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> cd /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py rawunpack
> *.sancov.raw
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print *.sancov
> >out.txt
> cd ../..
> diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64
> -fsanitize-coverage=edge -DSHARED /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc -shared
> -o /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp).dynamic.so
> -fPIC
> /home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++
> -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -gline-tables-only -m64
> -fsanitize-coverage=edge -DSO_DIR=\"/home/seurer/llvm/b
> uild/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELi
> nuxConfig/TestCases/Posix/Output\" /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc -ldl -o
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> rm -rf /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal
> env ASAN_OPTIONS=coverage=1:coverage_direct=0:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal/*.sancov
> >/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/tes
> t/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverag
> e-direct/normal/out.txt
> mkdir -p /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> env ASAN_OPTIONS=coverage=1:coverage_direct=1:coverage_dir=/
> home/seurer/llvm/build/llvm-test2/projects/compiler-rt/
> test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct:verbosity=1
>
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(basename
> /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage
> -direct.cc.tmp).dynamic.so
> cd /home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test
> /asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py rawunpack
> *.sancov.raw
> /usr/bin/python2.7 /home/seurer/llvm/llvm-test2/p
> rojects/compiler-rt/lib/sanitizer_common/scripts/sancov.py print *.sancov
> >out.txt
> cd ../..
> diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
> --
> Exit Code: 1
>
> Command Output (stdout):
> --
> bar
> bar
> bar
> bar
> --- coverage-direct/normal/out.txt 2017-01-24 10:20:41.258917000
> -0600
> +++ coverage-direct/direct/out.txt 2017-01-24 10:20:41.638917000
> -0600
> @@ -1 +1,2 @@
> 0x10128bb0
> +0x10128bb0
>
> --
> Command Output (stderr):
> --
> ==18701==AddressSanitizer: failed to intercept '__isoc99_printf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_sprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_snprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_fprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_vprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_vsprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_vsnprintf'
> ==18701==AddressSanitizer: failed to intercept '__isoc99_vfprintf'
> ==18701==AddressSanitizer: libc interceptors initialized
> || `[0x0a0000000000, 0x3fffffffffff]` || HighMem ||
> || `[0x034000000000, 0x09ffffffffff]` || HighShadow ||
> || `[0x024000000000, 0x033fffffffff]` || ShadowGap ||
> || `[0x020000000000, 0x023fffffffff]` || LowShadow ||
> || `[0x000000000000, 0x01ffffffffff]` || LowMem ||
> MemToShadow(shadow): 0x024000000000 0x0247ffffffff 0x026800000000
> 0x033fffffffff
> redzone=16
> max_redzone=2048
> quarantine_size_mb=256M
> thread_local_quarantine_size_kb=1024K
> malloc_context_size=30
> SHADOW_SCALE: 3
> SHADOW_GRANULARITY: 8
> SHADOW_OFFSET: 0x20000000000
> ==18701==Installed the sigaction for signal 11
> ==18701==Installed the sigaction for signal 7
> ==18701==Installed the sigaction for signal 8
> ==18701==T0: stack [0x3fffdd8c0000,0x3fffde0c0000) size 0x800000;
> local=0x3fffde0ba450
> ==18701==AddressSanitizer Init done
> PID: 18701
> ==18701== CovDump: /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/coverage-direct.cc.tmp.18701.sancov:
> 1 PCs written
> ==18701== CovDump: /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/libcoverage-
> direct.cc.tmp.dynamic.so.18701.sancov: 1 PCs written
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/coverage-
> direct.cc.tmp.18701.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/libcoverage-
> direct.cc.tmp.dynamic.so.18701.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> 2 files merged; 2 PCs total
> ==19909==AddressSanitizer: failed to intercept '__isoc99_printf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_sprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_snprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_fprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_vprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_vsprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_vsnprintf'
> ==19909==AddressSanitizer: failed to intercept '__isoc99_vfprintf'
> ==19909==AddressSanitizer: libc interceptors initialized
> || `[0x0a0000000000, 0x3fffffffffff]` || HighMem ||
> || `[0x034000000000, 0x09ffffffffff]` || HighShadow ||
> || `[0x024000000000, 0x033fffffffff]` || ShadowGap ||
> || `[0x020000000000, 0x023fffffffff]` || LowShadow ||
> || `[0x000000000000, 0x01ffffffffff]` || LowMem ||
> MemToShadow(shadow): 0x024000000000 0x0247ffffffff 0x026800000000
> 0x033fffffffff
> redzone=16
> max_redzone=2048
> quarantine_size_mb=256M
> thread_local_quarantine_size_kb=1024K
> malloc_context_size=30
> SHADOW_SCALE: 3
> SHADOW_GRANULARITY: 8
> SHADOW_OFFSET: 0x20000000000
> ==19909==Installed the sigaction for signal 11
> ==19909==Installed the sigaction for signal 7
> ==19909==Installed the sigaction for signal 8
> ==19909==T0: stack [0x3fffe86a0000,0x3fffe8ea0000) size 0x800000;
> local=0x3fffe8e91da0
> ==19909==AddressSanitizer Init done
> PID: 19909
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> reading map 19909.sancov.map
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> unpacking 19909.sancov.raw
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> writing 1 PCs to coverage-direct.cc.tmp.19909.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> writing 1 PCs to libcoverage-direct.cc.tmp.dynamic.so.19909.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from coverage-direct.cc.tmp.19909.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from libcoverage-direct.cc.tmp.dynamic.so.19909.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> 2 files merged; 2 PCs total
> ==27096==AddressSanitizer: failed to intercept '__isoc99_printf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_sprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_snprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_fprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_vprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_vsprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_vsnprintf'
> ==27096==AddressSanitizer: failed to intercept '__isoc99_vfprintf'
> ==27096==AddressSanitizer: libc interceptors initialized
> || `[0x0a0000000000, 0x3fffffffffff]` || HighMem ||
> || `[0x034000000000, 0x09ffffffffff]` || HighShadow ||
> || `[0x024000000000, 0x033fffffffff]` || ShadowGap ||
> || `[0x020000000000, 0x023fffffffff]` || LowShadow ||
> || `[0x000000000000, 0x01ffffffffff]` || LowMem ||
> MemToShadow(shadow): 0x024000000000 0x0247ffffffff 0x026800000000
> 0x033fffffffff
> redzone=16
> max_redzone=2048
> quarantine_size_mb=256M
> thread_local_quarantine_size_kb=1024K
> malloc_context_size=30
> SHADOW_SCALE: 3
> SHADOW_GRANULARITY: 8
> SHADOW_OFFSET: 0x20000000000
> ==27096==Installed the sigaction for signal 11
> ==27096==Installed the sigaction for signal 7
> ==27096==Installed the sigaction for signal 8
> ==27096==T0: stack [0x3ffffe510000,0x3ffffed10000) size 0x800000;
> local=0x3ffffed04100
> ==27096==AddressSanitizer Init done
> PID: 27096
> ==27096== CovDump: /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/coverage-direct.cc.tmp.27096.sancov:
> 1 PCs written
> ==27096== CovDump: /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/libcoverage-
> direct.cc.tmp.dynamic.so.27096.sancov: 1 PCs written
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/coverage-
> direct.cc.tmp.27096.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 1 64-bit PCs from /home/seurer/llvm/build/llvm-t
> est2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/T
> estCases/Posix/Output/coverage-direct/normal/libcoverage-
> direct.cc.tmp.dynamic.so.27096.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> 2 files merged; 1 PCs total
> ==27521==AddressSanitizer: failed to intercept '__isoc99_printf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_sprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_snprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_fprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_vprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_vsprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_vsnprintf'
> ==27521==AddressSanitizer: failed to intercept '__isoc99_vfprintf'
> ==27521==AddressSanitizer: libc interceptors initialized
> || `[0x0a0000000000, 0x3fffffffffff]` || HighMem ||
> || `[0x034000000000, 0x09ffffffffff]` || HighShadow ||
> || `[0x024000000000, 0x033fffffffff]` || ShadowGap ||
> || `[0x020000000000, 0x023fffffffff]` || LowShadow ||
> || `[0x000000000000, 0x01ffffffffff]` || LowMem ||
> MemToShadow(shadow): 0x024000000000 0x0247ffffffff 0x026800000000
> 0x033fffffffff
> redzone=16
> max_redzone=2048
> quarantine_size_mb=256M
> thread_local_quarantine_size_kb=1024K
> malloc_context_size=30
> SHADOW_SCALE: 3
> SHADOW_GRANULARITY: 8
> SHADOW_OFFSET: 0x20000000000
> ==27521==Installed the sigaction for signal 11
> ==27521==Installed the sigaction for signal 7
> ==27521==Installed the sigaction for signal 8
> ==27521==T0: stack [0x3fffcdaf0000,0x3fffce2f0000) size 0x800000;
> local=0x3fffce2e5b00
> ==27521==AddressSanitizer Init done
> PID: 27521
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> reading map 27521.sancov.map
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> unpacking 27521.sancov.raw
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> writing 2 PCs to coverage-direct.cc.tmp.27521.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> read 2 64-bit PCs from coverage-direct.cc.tmp.27521.sancov
> /home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py:
> 1 file merged; 2 PCs total
>
> --
>
> ********************
>
>
>
>
> On 01/23/2017 06:57 PM, Kostya Serebryany via llvm-commits wrote:
>
>> Author: kcc
>> Date: Mon Jan 23 18:57:31 2017
>> New Revision: 292862
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=292862&view=rev
>> Log:
>> [sanitizer-coverage] emit __sanitizer_cov_trace_pc_guard w/o a preceding
>> 'if' by default. Update the docs, also add deprecation notes around other
>> parts of sanitizer coverage
>>
>> Modified:
>> llvm/trunk/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
>> llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage.ll
>> llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage2-dbg.ll
>>
>> Modified: llvm/trunk/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transform
>> s/Instrumentation/SanitizerCoverage.cpp?rev=292862&r1=
>> 292861&r2=292862&view=diff
>> ============================================================
>> ==================
>> --- llvm/trunk/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
>> (original)
>> +++ llvm/trunk/lib/Transforms/Instrumentation/SanitizerCoverage.cpp Mon
>> Jan 23 18:57:31 2017
>> @@ -95,7 +95,7 @@ static cl::opt<unsigned> ClCoverageBlock
>> "sanitizer-coverage-block-threshold",
>> cl::desc("Use a callback with a guard check inside it if there are"
>> " more than this number of blocks."),
>> - cl::Hidden, cl::init(500));
>> + cl::Hidden, cl::init(0));
>>
>> static cl::opt<bool>
>> ClExperimentalTracing("sanitizer-coverage-experimental-tracing",
>>
>> Modified: llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Instrume
>> ntation/SanitizerCoverage/coverage.ll?rev=292862&r1=
>> 292861&r2=292862&view=diff
>> ============================================================
>> ==================
>> --- llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage.ll
>> (original)
>> +++ llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage.ll Mon
>> Jan 23 18:57:31 2017
>> @@ -1,6 +1,6 @@
>> ; RUN: opt < %s -sancov -sanitizer-coverage-level=0 -S | FileCheck %s
>> --check-prefix=CHECK0
>> ; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -S | FileCheck %s
>> --check-prefix=CHECK1
>> -; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -S | FileCheck %s
>> --check-prefix=CHECK2
>> +; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -S | FileCheck %s
>> --check-prefix=CHECK_WITH_CHECK
>> ; RUN: opt < %s -sancov -sanitizer-coverage-level=2
>> -sanitizer-coverage-block-threshold=10 -S | FileCheck %s
>> --check-prefix=CHECK2
>> ; RUN: opt < %s -sancov -sanitizer-coverage-level=2
>> -sanitizer-coverage-block-threshold=0 -S | FileCheck %s
>> --check-prefix=CHECK_WITH_CHECK
>> ; RUN: opt < %s -sancov -sanitizer-coverage-level=2
>> -sanitizer-coverage-block-threshold=1 -S | FileCheck %s
>> --check-prefix=CHECK_WITH_CHECK
>>
>> Modified: llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage2-
>> dbg.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Instrume
>> ntation/SanitizerCoverage/coverage2-dbg.ll?rev=292862&
>> r1=292861&r2=292862&view=diff
>> ============================================================
>> ==================
>> --- llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage2-dbg.ll
>> (original)
>> +++ llvm/trunk/test/Instrumentation/SanitizerCoverage/coverage2-dbg.ll
>> Mon Jan 23 18:57:31 2017
>> @@ -17,8 +17,8 @@ target triple = "x86_64-unknown-linux-gn
>> ; Check that __sanitizer_cov call has !dgb pointing to the beginning
>> ; of appropriate basic blocks.
>> ; CHECK-LABEL:_Z3fooPi
>> -; CHECK: call void @__sanitizer_cov(i32*{{.*}}), !dbg [[A:!.*]]
>> -; CHECK: call void @__sanitizer_cov(i32*{{.*}}), !dbg [[B:!.*]]
>> +; CHECK: call void @__sanitizer_cov{{.*}}(i32*{{.*}}), !dbg [[A:!.*]]
>> +; CHECK: call void @__sanitizer_cov{{.*}}(i32*{{.*}}), !dbg [[B:!.*]]
>> ; CHECK: ret void
>> ; CHECK: [[A]] = !DILocation(line: 1, scope: !{{.*}})
>> ; CHECK: [[B]] = !DILocation(line: 3, column: 5, scope: !{{.*}})
>>
>>
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>
>>
>
> --
>
> -Bill Seurer
>
>
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