ctf, btf: restructure CTF/BTF emission

This commit makes some structural changes to the CTF/BTF debug info
emission.  In particular:

 a) CTF is new always fully generated and emitted before any
    BTF-related procedures are run.  This means that BTF-related
    functions can change, even irreversibly, the shared in-memory
    representation used by the two formats without issue.

 b) BTF generation has fewer entry points, and is cleanly divided
    into early_finish and finish.

 c) BTF is now always emitted at finish (called from dwarf2out_finish),
    for all targets in non-LTO builds, rather than being emitted at
    early_finish for targets other than BPF CO-RE.  In LTO builds,
    BTF is emitted at early_finish as before.

    Note that this change alone does not alter the contents of BTF at
    all, regardless of whether it would have previously been emitted at
    early_finish or finish, because the calculation of the BTF to be
    emitted is not moved by this patch, only the write-out.

The changes are transparent to both CTF and BTF emission.

gcc/
	* btfout.cc (btf_init_postprocess): Rename to...
	(btf_early_finish): ...this.
	(btf_output): Rename to...
	(btf_finish): ...this.
	* ctfc.h: Analogous changes.
	* dwarf2ctf.cc (ctf_debug_early_finish): Conditionally call
	btf_early_finish, or ctf_finalize as appropriate.  Emit BTF
	here for LTO builds.
	(ctf_debug_finish): Always call btf_finish here if generating
	BTF info in non-LTO builds.
	(ctf_debug_finalize, ctf_debug_init_postprocess): Delete.
	* dwarf2out.cc (dwarf2out_early_finish): Remove call to
	ctf_debug_init_postprocess.

0 files changed, 0 insertions, 0 deletions