tools: Rework cross compilation scripts

- Use stderr for issues
- Add usage to run_integration.sh (-h or --help)
- deduce toolchain and qemu config from TARGET
- Bump QEMU from 2.11.1 to 5.2.0
  - fix qemu build on Archlinux
- Bump Linaro:
    toolchain 7.2-2017.11 -> 7.5-2019.12
    sysroot 2.25-2017.11 -> 2.25-2019.12
- Bump codescape from 2017.10-08 to 2020.06-01
  - migrate from mips-r2-hard to mips-r6-hard

scripts/test_integration.sh

@@ -1,84 +1,58 @@
 #!/usr/bin/env bash
 
-source "$(dirname -- "$0")"/run_integration.sh
-
 # Toolchains for little-endian, 64-bit ARMv8 for GNU/Linux systems
 function set_aarch64-linux-gnu() {
-  TOOLCHAIN=LINARO
-  TARGET=aarch64-linux-gnu
-  QEMU_ARCH=aarch64
+  export TARGET=aarch64-linux-gnu
 }
 
 # Toolchains for little-endian, hard-float, 32-bit ARMv7 (and earlier) for GNU/Linux systems
 function set_arm-linux-gnueabihf() {
-  TOOLCHAIN=LINARO
-  TARGET=arm-linux-gnueabihf
-  QEMU_ARCH=arm
+  export TARGET=arm-linux-gnueabihf
 }
 
 # Toolchains for little-endian, 32-bit ARMv8 for GNU/Linux systems
 function set_armv8l-linux-gnueabihf() {
-  TOOLCHAIN=LINARO
-  TARGET=armv8l-linux-gnueabihf
-  QEMU_ARCH=arm
+  export TARGET=armv8l-linux-gnueabihf
 }
 
 # Toolchains for little-endian, soft-float, 32-bit ARMv7 (and earlier) for GNU/Linux systems
 function set_arm-linux-gnueabi() {
-  TOOLCHAIN=LINARO
-  TARGET=arm-linux-gnueabi
-  QEMU_ARCH=arm
+  export TARGET=arm-linux-gnueabi
 }
 
 # Toolchains for big-endian, 64-bit ARMv8 for GNU/Linux systems
 function set_aarch64_be-linux-gnu() {
-  TOOLCHAIN=LINARO
-  TARGET=aarch64_be-linux-gnu
-  QEMU_ARCH=DISABLED
+  export TARGET=aarch64_be-linux-gnu
 }
 
 # Toolchains for big-endian, hard-float, 32-bit ARMv7 (and earlier) for GNU/Linux systems
 function set_armeb-linux-gnueabihf() {
-  TOOLCHAIN=LINARO
-  TARGET=armeb-linux-gnueabihf
-  QEMU_ARCH=DISABLED
+  export TARGET=armeb-linux-gnueabihf
 }
 
 # Toolchains for big-endian, soft-float, 32-bit ARMv7 (and earlier) for GNU/Linux systems
 function set_armeb-linux-gnueabi() {
-  TOOLCHAIN=LINARO
-  TARGET=armeb-linux-gnueabi
-  QEMU_ARCH=DISABLED
+  export TARGET=armeb-linux-gnueabi
 }
 
 function set_mips32() {
-  TOOLCHAIN=CODESCAPE
-  TARGET=mips32
-  QEMU_ARCH=mips
+  export TARGET=mips32
 }
 
 function set_mips32el() {
-  TOOLCHAIN=CODESCAPE
-  TARGET=mips32el
-  QEMU_ARCH=mipsel
+  export TARGET=mips32el
 }
 
 function set_mips64() {
-  TOOLCHAIN=CODESCAPE
-  TARGET=mips64
-  QEMU_ARCH=mips64
+  export TARGET=mips64
 }
 
 function set_mips64el() {
-  TOOLCHAIN=CODESCAPE
-  TARGET=mips64el
-  QEMU_ARCH=mips64el
+  export TARGET=mips64el
 }
 
-function set_native() {
-  TOOLCHAIN=NATIVE
-  TARGET=native
-  QEMU_ARCH=""
+function set_x86_64() {
+  export TARGET=x86_64
 }
 
 ENVIRONMENTS="
@@ -93,14 +67,13 @@ ENVIRONMENTS="
   set_mips32el
   set_mips64
   set_mips64el
-  set_native
+  set_x86_64
 "
 
 set -e
 
-CMAKE_GENERATOR="Ninja"
-
 for SET_ENVIRONMENT in ${ENVIRONMENTS}; do
+  echo "testing ${SET_ENVIRONMENT}"
   ${SET_ENVIRONMENT}
-  expand_environment_and_integrate
+  ./"$(dirname -- "$0")"/run_integration.sh
 done