Document how we can generate declaration tags specifying function address. Signed-off-by: Alan Maguire <alan.maguire@xxxxxxxxxx> --- man-pages/pahole.1 | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/man-pages/pahole.1 b/man-pages/pahole.1 index c1b48de..aa0a3a4 100644 --- a/man-pages/pahole.1 +++ b/man-pages/pahole.1 @@ -265,6 +265,14 @@ to "/sys/kernel/btf/vmlinux". Allow producing BTF_KIND_FLOAT entries in systems where the vmlinux DWARF information has float types. +.TP +.B \-\-btf_gen_func_addr +Generate DECL_TAG references that specify "address=0x<address of function>" +tags for each instance of a function. +This allows us to map from a function description in BTF to instances of its use +in code; +this is helpful if a function has multiple static definitions in different CUs that are incompatible. + .TP .B \-\-btf_gen_optimized Generate BTF for functions with optimization-related suffixes (.isra, .constprop). -- 2.31.1
