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| author | Alexei Starovoitov <ast@fb.com> | 2017-12-15 02:55:10 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2017-12-17 20:34:35 +0100 |
| commit | 48cca7e44f9f8268fdcd4351e2f19ff2275119d1 (patch) | |
| tree | 2900d4f0541a70a9b734bcea775e310ceea068ae /scripts/gcc-version.sh | |
| parent | selftests/bpf: add tests for stack_zero tracking (diff) | |
| download | linux-48cca7e44f9f8268fdcd4351e2f19ff2275119d1.tar.xz linux-48cca7e44f9f8268fdcd4351e2f19ff2275119d1.zip | |
libbpf: add support for bpf_call
- recognize relocation emitted by llvm
- since all regular function will be kept in .text section and llvm
takes care of pc-relative offsets in bpf_call instruction
simply copy all of .text to relevant program section while adjusting
bpf_call instructions in program section to point to newly copied
body of instructions from .text
- do so for all programs in the elf file
- set all programs types to the one passed to bpf_prog_load()
Note for elf files with multiple programs that use different
functions in .text section we need to do 'linker' style logic.
This work is still TBD
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'scripts/gcc-version.sh')
0 files changed, 0 insertions, 0 deletions