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author | Nicholas Piggin <npiggin@gmail.com> | 2022-12-20 11:13:23 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2023-01-09 17:53:46 +0100 |
commit | cad90e5381d840cf2296aaac9b3eff71a30b7c5b (patch) | |
tree | b0992c4b51bb596917ddf0ee662e3345a8a1f62e /fs/nfsd | |
parent | Linux 6.2-rc3 (diff) | |
download | linux-cad90e5381d840cf2296aaac9b3eff71a30b7c5b.tar.xz linux-cad90e5381d840cf2296aaac9b3eff71a30b7c5b.zip |
objtool: Tolerate STT_NOTYPE symbols at end of section
Hand-written asm often contains non-function symbols in executable
sections. _end symbols for finding the size of instruction blocks
for runtime processing is one such usage.
optprobe_template_end is one example that causes the warning:
objtool: optprobe_template_end(): can't find starting instruction
This is because the symbol happens to be at the end of the file (and
therefore end of a section in the object file).
So ignore end-of-section STT_NOTYPE symbols instead of bailing out
because an instruction can't be found. While we're here, add a more
descriptive warning for STT_FUNC symbols found at the end of a
section.
[ This also solves a PowerPC regression reported by Sathvika Vasireddy. ]
Reported-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reported-by: Sathvika Vasireddy <sv@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Sathvika Vasireddy <sv@linux.ibm.com>
Link: https://lore.kernel.org/r/20221220101323.3119939-1-npiggin@gmail.com
Diffstat (limited to 'fs/nfsd')
0 files changed, 0 insertions, 0 deletions