Comments (3)
On Sun, May 11, 2014 at 10:22 PM, Jovi Zhangwei [email protected]:
Hi,
The create_gcov always report cannot found binary buildid, but my kernel
already compiled with buildid.[root@localhost autofdo]# ./create_gcov --binary=../linux/vmlinux
--profile=../linux/perf.data --gcov=1
E0512 10:06:07.650653 14367 elf_reader.cc:789] Malformed
.note.gnu.build-id section.
E0512 10:06:07.657847 14367 sample_reader.cc:233] No buildid found in
binary
[root@localhost autofdo]#
[root@localhost autofdo]#
[root@localhost autofdo]# readelf -n ../linux/vmlinux|grep build
GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring)
You can ignore this error. It's harmless. It's a remnant of a string that's
inserted by Google's build system. Dehao is going to remove this soon.
Diego.
from autofdo.
You can simply ignore this error message (which I'll remove soon). But you need to make sure the binary that is running in the production machine has the same name as your "--binary" parameter, otherwise the tool cannot find the binary to match profile.
from autofdo.
This should have been fixed by d6834df
from autofdo.
Related Issues (20)
- create_gcov: Check failed: (pos + 2*width) <= buffer_ + buffer_length_ HOT 2
- autofdo doesnt compile. HOT 6
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- Huge memory consumption
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- [bug] No checking about "requires the first loadable segment to be executable". HOT 5
- Don't emit in output profile when sample count is 0. HOT 2
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- sample_reader.cc:102] Error reading from perf_inject_etm_test_loop.data&profile_creator.cc:138] Error reading profile.
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- Optimization clang with Propeller: create_llvm_prof fails
- Propeller slows down clang ~20% HOT 4
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