Add mips-unknown-linux-gnu sample

We have unkown-elf and linux-uclibc already. Complete the set with a
linux-gnu configuration.

Signed-off-by: Chris Packham <judge.packham@gmail.com>

.github/workflows/continuous-integration-workflow.yml

@@ -108,6 +108,7 @@ jobs:
           "armv6-nommu-linux-uclibcgnueabi",
           "avr",
           "mips-unknown-elf",
+          "mips-unknown-linux-gnu",
           "mips64-unknown-linux-gnu",
           "powerpc-unknown-linux-gnu",
           "powerpc64-unknown-linux-gnu",
@@ -128,9 +129,10 @@ jobs:
           - {host: "macos-10.15", sample: "arc-multilib-linux-gnu"}
           - {host: "macos-10.15", sample: "arc-multilib-linux-uclibc"}
 
-          # Exclude mips64-*-linux-gnu because of <byteswap.h> usage in
+          # Exclude mips*-*-linux-gnu because of <byteswap.h> usage in
           # elf-entry.c for linux kernel headers.  <byteswap.h> is a GNU
           # extension and doesn't exist on MacOS X
+          - {host: "macos-10.15", sample: "mips-unknown-linux-gnu"}
           - {host: "macos-10.15", sample: "mips64-unknown-linux-gnu"}
     steps:
       - name: Create case sensitive workspace volume for macOS

samples/mips-unknown-linux-gnu/crosstool.config

@@ -0,0 +1,13 @@
+CT_CONFIG_VERSION="3"
+CT_ARCH_MIPS=y
+CT_ARCH_ARCH="mips1"
+CT_ARCH_FLOAT_SW=y
+CT_KERNEL_LINUX=y
+CT_BINUTILS_PLUGINS=y
+CT_CC_GCC_mips_plt=y
+CT_CC_LANG_CXX=y
+CT_DEBUG_DUMA=y
+CT_DEBUG_GDB=y
+# CT_GDB_CROSS_PYTHON is not set
+CT_GDB_NATIVE=y
+CT_DEBUG_STRACE=y

samples/mips-unknown-linux-gnu/reported.by

@@ -0,0 +1,3 @@
+reporter_name="Chris Packham"
+reporter_url=""
+reporter_comment="Big-endian configuration for MIPS/glibc."