Toolchain: Allow many patches for gdb and add clang workaround

This ports https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ae61525fcf456ab395d55c45492a106d1275873a
from upstream binutils, which enables building with the newest host
clang versions.

Toolchain/Patches/gdb/gdb.patch

@@ -0,0 +1,52 @@
+From 59d321f27907434ef9a10defd96d58272a963fd9 Mon Sep 17 00:00:00 2001
+From: Daniel Bertalan <dani@danielbertalan.dev>
+Date: Thu, 24 Mar 2022 19:23:23 +0100
+Subject: [PATCH] gdb: Add support for SerenityOS
+
+---
+ bfd/config.bfd | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/bfd/config.bfd b/bfd/config.bfd
+index 30087e3..58e0b80 100644
+--- a/bfd/config.bfd
++++ b/bfd/config.bfd
+@@ -255,6 +255,11 @@ case "${targ}" in
+     targ_selvecs=aarch64_elf64_be_cloudabi_vec
+     want64=true
+     ;;
++  aarch64-*-serenity*)
++    targ_defvec=aarch64_elf64_le_vec
++    targ_selvecs=
++    want64=true
++    ;;
+   aarch64-*-linux* | aarch64-*-netbsd*)
+     targ_defvec=aarch64_elf64_le_vec
+     targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec"
+@@ -634,6 +639,11 @@ case "${targ}" in
+     targ_selvecs=
+     targ64_selvecs=x86_64_elf64_vec
+     ;;
++  i[3-7]86-*-serenity*)
++    targ_defvec=i386_elf32_vec
++    targ_selvecs=
++    targ64_selvecs=x86_64_elf64_vec
++    ;;
+ #ifdef BFD64
+   x86_64-*-cloudabi*)
+     targ_defvec=x86_64_elf64_cloudabi_vec
+@@ -694,6 +704,11 @@ case "${targ}" in
+     targ_selvecs=i386_elf32_vec
+     want64=true
+     ;;
++  x86_64-*-serenity*)
++    targ_defvec=x86_64_elf64_vec
++    targ_selvecs=i386_elf32_vec
++    want64=true
++    ;;
+ #endif
+   i[3-7]86-*-lynxos*)
+     targ_defvec=i386_elf32_vec
+-- 
+2.35.1
+