fix(asm): add cross-package GOOBJ resolution for riscv64, loong64, arm64

Assisted-by: MiMo V2.5 Pro

asm/elfarm64.go

@@ -16,6 +16,7 @@ const (
 	// AArch64 relocation types (the ELF psABI).
 	rArm64PrelPgHi21   = 275 // R_AARCH64_ADR_PREL_PG_HI21 (ADRP page)
 	rArm64AddAbsLo12NC = 277 // R_AARCH64_ADD_ABS_LO12_NC (ADD/STR/LDR page offset)
+	rArm64Call26       = 283 // R_AARCH64_CALL26 (BL instruction)
 )
 
 // ELFAARCH64Object returns the image as an ELF64 relocatable object file for
@@ -94,10 +95,14 @@ func (img *Image) ELFAARCH64Object() ([]byte, error) {
 			if !ok {
 				return nil, fmt.Errorf("relocation references unknown symbol %q", r.Name)
 			}
-			typ := uint32(rArm64PrelPgHi21)
-			if r.Kind == RelArm64Addr && r.Off%4 == 4 {
-				// The second instruction in an ADRP pair uses ADD_ABS_LO12_NC.
+			var typ uint32
+			switch {
+			case r.Kind == RelArm64Branch:
+				typ = rArm64Call26
+			case r.Kind == RelArm64Addr && r.Off%4 == 4:
 				typ = rArm64AddAbsLo12NC
+			default:
+				typ = rArm64PrelPgHi21
 			}
 			relas = append(relas, elfRela{
 				off:    uint64(fn.Offset + r.Off),