diff -ur gdb-10.2-orig/bfd/config.bfd gdb-10.2/bfd/config.bfd
--- gdb-10.2-orig/bfd/config.bfd	2021-04-25 07:06:26.000000000 +0300
+++ gdb-10.2/bfd/config.bfd	2021-09-07 01:14:58.781960654 +0300
@@ -224,7 +224,25 @@
 
 case "${targ}" in
 # START OF targmatch.h
+  i[3-7]86-*-serenity*)
+    targ_defvec=i386_elf32_vec
+    targ_selvecs=
+    ;;
+  arm-*-serenity*)
+    targ_defvec=arm_elf32_le_vec
+    targ_selvecs=
+    ;;
 #ifdef BFD64
+  x86_64-*-serenity*)
+    targ_defvec=x86_64_elf64_vec
+    targ_selvecs=i386_elf32_vec
+    want64=true
+    ;;
+  aarch64-*-serenity*)
+    targ_defvec=aarch64_elf64_le_vec
+    targ_selvecs=
+    want64=true
+    ;;
   aarch64-*-darwin*)
     targ_defvec=aarch64_mach_o_vec
     targ_selvecs="arm_mach_o_vec mach_o_le_vec mach_o_be_vec mach_o_fat_vec"
diff -ur gdb-10.2-orig/config.sub gdb-10.2/config.sub
--- gdb-10.2-orig/config.sub	2021-04-25 07:06:26.000000000 +0300
+++ gdb-10.2/config.sub	2021-09-07 01:20:15.360899801 +0300
@@ -1339,6 +1339,7 @@
 	# Each alternative MUST end in a * to match a version number.
 	# sysv* is not here because it comes later, after sysvr4.
 	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
+	     | serenity* \
 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
 	     | sym* | kopensolaris* | plan9* \