[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

Bill Seurer via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 24 08:44:58 PST 2017


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/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=func 
/home/seurer/llvm/llvm-test2/projects/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/projects/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/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-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$(basename 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp).dynamic.so
cd 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
/usr/bin/python2.7 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py 
rawunpack *.sancov.raw
/usr/bin/python2.7 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py 
print *.sancov >out.txt
cd ../..
diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
/home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++ 
-fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -gline-tables-only -m64 
-fsanitize-coverage=bb -DSHARED 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc 
-shared -o 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(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/compiler-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-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/projects/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/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-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$(basename 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct.cc.tmp).dynamic.so
cd 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/direct
/usr/bin/python2.7 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py 
rawunpack *.sancov.raw
/usr/bin/python2.7 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py 
print *.sancov >out.txt
cd ../..
diff -u coverage-direct/normal/out.txt coverage-direct/direct/out.txt
/home/seurer/llvm/build/llvm-test2/./bin/clang --driver-mode=g++ 
-fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -gline-tables-only -m64 
-fsanitize-coverage=edge -DSHARED 
/home/seurer/llvm/llvm-test2/projects/compiler-rt/test/asan/TestCases/Posix/coverage-direct.cc 
-shared -o 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/lib$(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=edge 
-DSO_DIR=\"/home/seurer/llvm/build/llvm-test2/projects/compiler-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-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/projects/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/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-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/projects/compiler-rt/lib/sanitizer_common/scripts/sancov.py 
rawunpack *.sancov.raw
/usr/bin/python2.7 
/home/seurer/llvm/llvm-test2/projects/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal/coverage-direct.cc.tmp.18701.sancov: 
1 PCs written
==18701== CovDump: 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/Posix/Output/coverage-direct/normal/coverage-direct.cc.tmp.27096.sancov: 
1 PCs written
==27096== CovDump: 
/home/seurer/llvm/build/llvm-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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-test2/projects/compiler-rt/test/asan/POWERPC64LELinuxConfig/TestCases/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/Transforms/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/Instrumentation/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/Instrumentation/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: !{{.*}})
>
>
> _______________________________________________
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> llvm-commits at lists.llvm.org
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>


-- 

-Bill Seurer



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