Libexec/rtld freebsd noinit (#356)

* lib/libsqlite3: enable PREUPDATE_HOOK and COLUMN_METADATA

SQLITE_ENABLE_SESSION alone is insufficient; SQLite's documentation
requires SQLITE_ENABLE_PREUPDATE_HOOK to be defined alongside it for
the session/changeset/patchset API (sqlite3session_*, sqlite3changeset_*)
to be fully functional.

SQLITE_ENABLE_COLUMN_METADATA enables sqlite3_column_origin_name(),
sqlite3_column_database_name(), and sqlite3_column_table_name(), which
Node.js 24 and other consumers depend on.

AI-Assisted-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Lucas Holt <luke@foolishgames.com>

* rtld: honor FreeBSD no-init notes

Accept FreeBSD note vendor sizing when parsing ELF notes so FreeBSD binaries carrying NT_FREEBSD_NOINIT_TAG set crt_no_init. This lets rtld run the main executable init arrays instead of leaving C++ globals uninitialized.

AI-Assisted-by: Codex <noreply@openai.com>
Signed-off-by: Lucas Holt <luke@foolishgames.com>

---------

Signed-off-by: Lucas Holt <luke@foolishgames.com>

Author: laffer1

lib/libsqlite3/Makefile

@@ -37,7 +37,9 @@ CFLAGS+=	-I${SQLITE} \
 		-DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_FTS4 \
 		-DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_GEOPOLY \
 		-DSQLITE_HAVE_ZLIB -DSQLITE_ENABLE_MATH_FUNCTIONS \
-		-DSQLITE_ENABLE_SESSION
+		-DSQLITE_ENABLE_SESSION \
+		-DSQLITE_ENABLE_PREUPDATE_HOOK \
+		-DSQLITE_ENABLE_COLUMN_METADATA
 
 MK_MAN=	no
 

libexec/rtld-elf/rtld.c

@@ -1770,7 +1770,8 @@ digest_notes(Obj_Entry *obj, Elf_Addr note_start, Elf_Addr note_end)
 	    note = (const Elf_Note *)((const char *)(note + 1) +
 	      roundup2(note->n_namesz, sizeof(Elf32_Addr)) +
 	      roundup2(note->n_descsz, sizeof(Elf32_Addr)))) {
-		if (note->n_namesz != sizeof(NOTE_MIDNIGHTBSD_VENDOR) ||
+		if ((note->n_namesz != sizeof(NOTE_MIDNIGHTBSD_VENDOR) &&
+		    note->n_namesz != sizeof(NOTE_FREEBSD_VENDOR)) ||
 		    note->n_descsz != sizeof(int32_t))
 			continue;
 		if (note->n_type != NT_FREEBSD_ABI_TAG &&
@@ -1802,7 +1803,7 @@ digest_notes(Obj_Entry *obj, Elf_Addr note_start, Elf_Addr note_end)
 			dbg("note fctl0 %#x", obj->fctl0);
 			break;
 		case NT_MIDNIGHTBSD_NOINIT_TAG:
-			/* MidnightBSD 'crt does not call init' note */
+			/* FreeBSD/MidnightBSD 'crt does not call init' note */
 			obj->crt_no_init = true;
 			dbg("note crt_no_init");
 			break;