better error meessage for error "unknown opcode" #2101
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fix issue #226 The unknown opcode typically happens if the bpf program has an external reference which does not get resolved. Note bcc does not even preform relocations for maps as map_id is directly used in bpf problem through bpf_pseudo_fd() intrinsic. Instead of the error: bpf: Failed to load program: Invalid argument unknown opcode 00 A little explanation is added like the below: HINT: The 'unknown opcode' can happen if you referencea global or static variable, or data in read only section. For example,'char *p = "hello"' will result in p referencing a read only section,and 'char p[] = "hello"' will have "hello" stored on the stack. Signed-off-by: Yonghong Song <[email protected]>
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palexster
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Jul 7, 2019
fix issue iovisor#226 The unknown opcode typically happens if the bpf program has an external reference which does not get resolved. Note bcc does not even preform relocations for maps as map_id is directly used in bpf problem through bpf_pseudo_fd() intrinsic. Instead of the error: bpf: Failed to load program: Invalid argument unknown opcode 00 A little explanation is added like the below: HINT: The 'unknown opcode' can happen if you referencea global or static variable, or data in read only section. For example,'char *p = "hello"' will result in p referencing a read only section,and 'char p[] = "hello"' will have "hello" stored on the stack. Signed-off-by: Yonghong Song <[email protected]>
CrackerCat
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Jul 31, 2024
fix issue iovisor#226 The unknown opcode typically happens if the bpf program has an external reference which does not get resolved. Note bcc does not even preform relocations for maps as map_id is directly used in bpf problem through bpf_pseudo_fd() intrinsic. Instead of the error: bpf: Failed to load program: Invalid argument unknown opcode 00 A little explanation is added like the below: HINT: The 'unknown opcode' can happen if you referencea global or static variable, or data in read only section. For example,'char *p = "hello"' will result in p referencing a read only section,and 'char p[] = "hello"' will have "hello" stored on the stack. Signed-off-by: Yonghong Song <[email protected]>
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fix issue #226
The unknown opcode typically happens if the bpf
program has an external reference which does not
get resolved. Note bcc does not even preform
relocations for maps as map_id is directly
used in bpf problem through bpf_pseudo_fd()
intrinsic.
Instead of the error:
bpf: Failed to load program: Invalid argument
unknown opcode 00
A little explanation is added like the below:
HINT: The 'unknown opcode' can happen if you referencea global
or static variable, or data in read only section.
For example,'char *p = "hello"' will result in p referencing a
read only section,and 'char p[] = "hello"' will have "hello"
stored on the stack.
Signed-off-by: Yonghong Song [email protected]