我在项目中使用lcov创建覆盖率信息。但我只能获得行覆盖率和函数覆盖率统计信息。
lcov version:1.10, gcov version:4.4.5
我使用的命令是：
lcov -d $OSPL_HOME/src -d $OSPL_OUTER_HOME/src -c -o /work/li/log/lcov-raw.info
lcov -r /work/li/log/lcov-raw.info "*.ll" "*.yy" "*.yy.c" yaccpar "TAO161*" "/usr/include/*" "*/testsuite/*" -o /work/li/log/lcov.info
执行这两个命令后，我得到的结果是：
Deleted 23 files
Writing data to /work/li/log/lcov.info
Summary coverage rate:
lines......: 45.4% (65087 of 143496 lines)
functions..: 46.1% (5575 of 12102 functions)
**branches...: no data found**
所以没有分支覆盖率的结果。为什么？发生了什么？这是怎么回事？我很困惑。
在第一个命令之后，我收到了很多这样的警告：
geninfo: WARNING: cannot find an entry for ..#..#code#accum.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#at.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#autodef.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#copyof.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#debug.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#define.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#dump.c.gcov in .gcno file,skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#error.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#expand.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#expr.c.gcov in .gcno file,skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#if.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#include.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#io.c.gcov in .gcno file, s kipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#is.c.gcov in .gcno file, s kipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#line.c.gcov in .gcno file,skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#pragma.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#preprocess.c.gcov in .gcnofile, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#set.c.gcov in .gcno file,skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#sharp.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#symtbl.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#undef.c.gcov in .gcno file, skipping file!
geninfo: WARNING: cannot find an entry for ..#..#code#while.c.gcov in .gcno file , skipping file!