On Thu, 2024-11-28 at 01:23 +0000, Ihor Solodrai wrote:
> From: Alan Maguire <alan.maguire@xxxxxxxxxx>
>
> This will help us do more accurate DWARF/ELF matching.
It would be good to have a more detailed explanation here.
E.g. number of generated functions differs with this patch:
# without this patch
$ bpftool btf dump file /home/eddy/work/tmp/old.btf | grep "\] FUNC '" | wc -l
48056
# with this patch
$ bpftool btf dump file /home/eddy/work/tmp/new.btf | grep "\] FUNC '" | wc -l
48189
It would be helpful to peek one of newly added functions and explain
why it was previously excluded.
>
> Signed-off-by: Alan Maguire <alan.maguire@xxxxxxxxxx>
> Signed-off-by: Ihor Solodrai <ihor.solodrai@xxxxx>
> ---
> btf_encoder.c | 37 +++++++++++++++++++++++++++++++------
> 1 file changed, 31 insertions(+), 6 deletions(-)
>
> diff --git a/btf_encoder.c b/btf_encoder.c
> index 98e4d7d..01d7094 100644
> --- a/btf_encoder.c
> +++ b/btf_encoder.c
> @@ -88,6 +88,7 @@ struct btf_encoder_func_state {
> struct elf_function {
> const char *name;
> char *alias;
> + uint32_t addr;
> size_t prefixlen;
> struct btf_encoder_func_state state;
> };
> @@ -131,6 +132,7 @@ struct btf_encoder {
> int allocated;
> int cnt;
> int suffix_cnt; /* number of .isra, .part etc */
> + uint64_t base_addr;
This field is set, but never read.
> } functions;
> };
>
[...]
