meson: use plain nasm by default

nasm-segelf is not widely available. :(

Author: stsp

configure.meson

@@ -1,21 +1,25 @@
 #!/usr/bin/env bash
 
 usage() {
-  echo "$0 [-b <build_dir>] [-c] [-d] [-- <meson_args>]"
-  echo -e "\t-c selects clang for build"
+  echo "$0 [-b <build_dir>] [-c] [-s] [-d] [-- <meson_args>]"
+  echo -e "\t-c selects clang instead of gcc"
+  echo -e "\t-s selects nasm-segelf instead of nasm"
 }
 
 CROSS_F="toolchain.ini"
 BLD="build"
 
-while getopts "b:cdh" opt; do
+while getopts "b:csdh" opt; do
   case "$opt" in
     b)
       BLD="$OPTARG"
       ;;
     c)
       CROSS_F="toolchain-clang.ini"
       ;;
+    s)
+      CROSS_F="toolchain-segelf.ini"
+      ;;
     d)
       DEBUG="1"
       ;;

fdpp/kernel/toolchain-segelf.ini

@@ -0,0 +1,21 @@
+[binaries]
+nasm = 'nasm-segelf'
+c = 'gcc'
+c_ld = 'bfd'
+cpp = 'g++'
+# Note: strip is currently unused. Compatible GNU strip is since binutils-2.42
+strip = 'strip'
+pkg-config = 'pkg-config'
+
+[properties]
+needs_exe_wrapper = false
+
+[constants]
+arch = 'i386-linux-gnu'
+
+[host_machine]
+system = 'linux'
+cpu_family = 'x86'
+cpu = 'i386'
+endian = 'little'
+

fdpp/kernel/toolchain.ini

@@ -1,5 +1,5 @@
 [binaries]
-nasm = 'nasm-segelf'
+nasm = 'nasm'
 c = 'gcc'
 c_ld = 'bfd'
 cpp = 'g++'