| Message ID | 20210804175411.6783-5-david.faust@oracle.com |
|---|---|
| State | New |
| Headers | show |
| Series | BPF CO-RE Support | expand |
On Wed, Aug 4, 2021 at 7:57 PM David Faust via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > Expose the function get_btf_id, so that it may be used by the BPF > backend. This enables the BPF CO-RE machinery in the BPF backend to > lookup BTF type IDs, in order to create CO-RE relocation records. > > A prototype is added in ctfc.h Patches 2-4 are OK. > gcc/ChangeLog: > > * btfout.c (get_btf_id): Function is no longer static. > * ctfc.h: Expose it here. > --- > gcc/btfout.c | 2 +- > gcc/ctfc.h | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/gcc/btfout.c b/gcc/btfout.c > index 8cdd9905fb6..cdc6c6378c0 100644 > --- a/gcc/btfout.c > +++ b/gcc/btfout.c > @@ -156,7 +156,7 @@ init_btf_id_map (size_t len) > /* Return the BTF type ID of CTF type ID KEY, or BTF_INVALID_TYPEID if the CTF > type with ID KEY does not map to a BTF type. */ > > -static inline ctf_id_t > +ctf_id_t > get_btf_id (ctf_id_t key) > { > return btf_id_map[key]; > diff --git a/gcc/ctfc.h b/gcc/ctfc.h > index 14180c1e5de..a0b7e4105a8 100644 > --- a/gcc/ctfc.h > +++ b/gcc/ctfc.h > @@ -431,6 +431,7 @@ extern int ctf_add_variable (ctf_container_ref, const char *, ctf_id_t, > dw_die_ref, unsigned int); > > extern ctf_id_t ctf_lookup_tree_type (ctf_container_ref, const tree); > +extern ctf_id_t get_btf_id (ctf_id_t); > > /* CTF section does not emit location information; at this time, location > information is needed for BTF CO-RE use-cases. */ > -- > 2.32.0 >
diff --git a/gcc/btfout.c b/gcc/btfout.c index 8cdd9905fb6..cdc6c6378c0 100644 --- a/gcc/btfout.c +++ b/gcc/btfout.c @@ -156,7 +156,7 @@ init_btf_id_map (size_t len) /* Return the BTF type ID of CTF type ID KEY, or BTF_INVALID_TYPEID if the CTF type with ID KEY does not map to a BTF type. */ -static inline ctf_id_t +ctf_id_t get_btf_id (ctf_id_t key) { return btf_id_map[key]; diff --git a/gcc/ctfc.h b/gcc/ctfc.h index 14180c1e5de..a0b7e4105a8 100644 --- a/gcc/ctfc.h +++ b/gcc/ctfc.h @@ -431,6 +431,7 @@ extern int ctf_add_variable (ctf_container_ref, const char *, ctf_id_t, dw_die_ref, unsigned int); extern ctf_id_t ctf_lookup_tree_type (ctf_container_ref, const tree); +extern ctf_id_t get_btf_id (ctf_id_t); /* CTF section does not emit location information; at this time, location information is needed for BTF CO-RE use-cases. */