drcov should fail up front on wrong-arch ELF data

[derekbruening]

From [email protected] on August 29, 2014 16:28:22

bin32/drrun -t drcov -- /work/dr/test/hello
bin64/drrun -t drcov -- /work/dr/test/hello64
head drcov*.log
tools/bin32/drcov2lcov --dir . --output drcov.out

[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /work/dr/build_package/DynamoRIO-Linux-5.0.0-4/lib64/release/libdynamorio.so.5.0
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /usr/lib64/libdl-2.18.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /usr/lib64/ld-2.18.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /usr/lib/libc-2.18.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /work/dr/build_package/DynamoRIO-Linux-5.0.0-4/tools/lib64/release/libdrcov.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /usr/lib/libdl-2.18.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /usr/lib/libm-2.18.so
[DRCOV2LCOV] WARNING(1): Failed to enumerate lines for /work/dr/build_package/DynamoRIO-Linux-5.0.0-4/lib64/release/libdrpreload.so

drmemory/bin/symquery -e /work/dr/build_package/DynamoRIO-Linux-5.0.0-4/tools/lib64/release/libdrcov.so --lines | head -3cu="/work/dynamorio_package/clients/drcov/drcov.c", file="/work/dynamorio_package/clients/drcov/drcov.c" line=594, addr=0x1ef0
cu="/work/dynamorio_package/clients/drcov/drcov.c", file="/work/dynamorio_package/clients/drcov/drcov.c" line=598, addr=0x1ef0
cu="/work/dynamorio_package/clients/drcov/drcov.c", file="/work/dynamorio_package/clients/drcov/drcov.c" line=600, addr=0x1ef6

in drcov.out:
SF:/work/dynamorio_package/clients/drcov/drcov.c

no repro w/ local 32-bit build

the problem is that I ran both 32 and 64
and the error is on the other bitwidth from the drcov2lcov that I run
so it asks drcov2lcov to process some log files, some 32 and some 64
and unix drsyms only handles its own bitwidth (issue #1532; Windows 64-bit handles both)
so should it give a fatal error on linux?

need to bump file ver# to add bitwidth to it.

**** TODO current ver check has 2 problems

1. it does not even check the version (logic broken)

2. if the logic were fixed, it would print a message ""Failed to read
   version number" on a version mismatch

Original issue: http://code.google.com/p/dynamorio/issues/detail?id=1533

[derekbruening]

From [email protected] on August 30, 2014 21:28:34

This issue was closed by revision r2814 .

Status: Fixed