From bc77cb384ecef7d876acb84c9e198ce01648f492 Mon Sep 17 00:00:00 2001
From: Tony Theodore <tonyt@logyst.com>
Date: Fri, 15 Jul 2016 13:52:42 +1000
Subject: host-toolchain plugin: binary compare gcc cross and host output

---
 plugins/examples/host-toolchain/README.md   | 10 +++++++++-
 plugins/examples/host-toolchain/gcc-host.mk |  7 +++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/plugins/examples/host-toolchain/README.md b/plugins/examples/host-toolchain/README.md
index b571e4b..6b376bf 100644
--- a/plugins/examples/host-toolchain/README.md
+++ b/plugins/examples/host-toolchain/README.md
@@ -15,7 +15,15 @@ second pass to cross-compile the basic toolchain (`binutils` and `gcc`).
 
 Once complete, copy `usr/{target}` to an appropriate Windows machine
 and execute the `usr\{target}\bin\test-gcc-host.bat` batch file. This
-builds and runs the `libgomp` test as a sanity check.
+builds and runs the `libgomp` test as a sanity check. The cross and host
+built programs should be identical (after stripping), confirmed with the
+final step:
+
+```
+>fc /b test-gcc-host.exe test-pthreads-libgomp.exe
+Comparing files test-gcc-host.exe and TEST-PTHREADS-LIBGOMP.EXE
+FC: no differences encountered
+```
 
 #### Qt5 tools (`qmake.exe`, `rcc.exe`, etc.)
 
diff --git a/plugins/examples/host-toolchain/gcc-host.mk b/plugins/examples/host-toolchain/gcc-host.mk
index 2e6b3c8..758f68d 100644
--- a/plugins/examples/host-toolchain/gcc-host.mk
+++ b/plugins/examples/host-toolchain/gcc-host.mk
@@ -9,7 +9,7 @@ $(PKG)_SUBDIR    = $(gcc_SUBDIR)
 $(PKG)_FILE      = $(gcc_FILE)
 $(PKG)_URL       = $(gcc_URL)
 $(PKG)_URL_2     = $(gcc_URL_2)
-$(PKG)_DEPS     := gcc binutils-host cloog gmp isl mpfr mpc
+$(PKG)_DEPS     := gcc binutils-host cloog gmp isl mpfr mpc pthreads
 
 define $(PKG)_UPDATE
     echo $(gcc_VERSION)
@@ -43,10 +43,13 @@ define $(PKG)_BUILD
     $(MAKE) -C '$(1).build' -j 1 install
 
     # test compilation on host
+    # strip and compare cross and host-built tests
     cp '$(TOP_DIR)/src/pthreads-libgomp-test.c' '$(PREFIX)/$(TARGET)/bin/test-$(PKG).c'
     (printf 'set PATH=..\\bin;%%PATH%%\r\n'; \
      printf 'gcc test-$(PKG).c -o test-$(PKG).exe -fopenmp -v\r\n'; \
      printf 'test-$(PKG).exe\r\n'; \
-     printf 'pause\r\n';) \
+     printf 'strip test-$(PKG).exe test-pthreads-libgomp.exe\r\n'; \
+     printf 'fc /b test-$(PKG).exe test-pthreads-libgomp.exe\r\n'; \
+     printf 'cmd\r\n';) \
      > '$(PREFIX)/$(TARGET)/bin/test-$(PKG).bat'
 endef
-- 
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