https://llvm.org/bugs/show_bug.cgi?id=31544
Bug ID: 31544
Summary: BPF target: More meaningful error messages from BPF
backend
Product: new-bugs
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: dan...@iogearbox.net
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
The below compile error happens when a BPF program passes a constant NULL
pointer into a function and dereferences a member from it.
fatal error: error in backend: Cannot select: 0x47508a0: ch,glue = BPFISD::CALL
0x48e0380, TargetExternalSymbol:i64'abort'
0x4884ec0: i64 = TargetExternalSymbol'abort'
In function: handle_policy
clang-3.8: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
clang version 3.8.1 (tags/RELEASE_381/final)
Target: bpf
Thread model: posix
InstalledDir: /usr/local/clang/bin
Would be great if this has something more intuitive to the user.
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