Comments (1)
gmarin13
commented on May 15, 2024
When using frame pointers to unwind the stack, perf captures the return address at each frame.
The return address is the address of the instruction after the call instruction. For stack unwinding we want to get the symbols associated with the call instructions. That's the motivation for subtracting 1 from each frame address.
You can try to disassemble the code. Is there a call to __irqentry_text_start at the end of common_interrupt or is there a call at the start of ret_from_intr?
What method was used for stack unwinding (fp, dwarf, lbr)?
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Related Issues (20)
- ERROR: Analysis of target '//src:perf_to_profile' failed; build aborted: error loading package '@com_google_protobuf//': Unable to find package for @rules_java//java:defs.bzl: The repository '@rules_java' could not be resolved. HOT 4
- Build fails with 404 errors because bazel doesn't follow redirects HOT 4
- Could we get a command-line option for setting `kPidAndTidLabels`? HOT 1
- "PERF_SAMPLE_REGS_USER is not yet supported" fatal error on perf.data recorded with `--call-graph dwarf` HOT 3
- Build broken due to bad dependencies import HOT 1
- fips_break_test.h: No such file or directory HOT 2
- perf_to_profile fails with large (18gb) perf data HOT 3
- build error in centos
- failed to compile in linux environment HOT 6
- perf_to_profile crashes on a 3GB perf.data file HOT 3
- Memory corruption when parsing malformed perf data files HOT 1
- build error using bazel HOT 3
- branch stack reader needs updating for new information HOT 4
- Cannot extract function name from perf.data HOT 1
- perf_to_profile drops perf symbols HOT 2
- Compiler warnings when building perf_data_converter HOT 1
- build failed with bazel 4.0, Arch Linux HOT 3
- Build failing "fips.c: No such file or directory" since 15.03.2021 (boringssl) HOT 3
- Could NOT find Protobuf (missing: Protobuf_LIBRARIES Protobuf_INCLUDE_DIR) HOT 1
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