intel-graphics-compiler: improve src package reproducibility

Improve the reproducibility of intel-graphics-compiler-src by replacing
the absolute build path with relative one in bison compiled files.

│ │ │ -#ifndef
YY_CISA_YOCTO_POKY_MASTER_BUILD_TMP_WORK_SKYLAKE_64_POKY_LINUX_INTEL_GRAPHICS_COMPILER_1_0_4241_R0_BUILD_IGC_VISA_CISA_TAB_HPP_INCLUDED
│ │ │ -# define
YY_CISA_YOCTO_POKY_MASTER_BUILD_TMP_WORK_SKYLAKE_64_POKY_LINUX_INTEL_GRAPHICS_COMPILER_1_0_4241_R0_BUILD_IGC_VISA_CISA_TAB_HPP_INCLUDED
│ │ │ +#ifndef
YY_CISA_YOCTO_POKY_MASTER_BUILD_2_TMP_WORK_SKYLAKE_64_POKY_LINUX_INTEL_GRAPHICS_COMPILER_1_0_4241_R0_BUILD_IGC_VISA_CISA_TAB_HPP_INCLUDED
│ │ │ +# define
YY_CISA_YOCTO_POKY_MASTER_BUILD_2_TMP_WORK_SKYLAKE_64_POKY_LINUX_INTEL_GRAPHICS_COMPILER_1_0_4241_R0_BUILD_IGC_VISA_CISA_TAB_HPP_INCLUDED

Also suppress #line directives in scanner that have the build path:

│ │ │ -#line 2593
"/yocto/poky-master/build/tmp/work/skylake-64-poky-linux/intel-graphics-compiler/1.0.4241-r0/build/IGC/visa/lex.CISA.cpp"
│ │ │ +#line 2593
"/yocto/poky-master/build-2/tmp/work/skylake-64-poky-linux/intel-graphics-compiler/1.0.4241-r0/build/IGC/visa/lex.CISA.cpp"

Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/dynamic-layers/clang-layer/recipes-opencl/igc/files/improve_src_package_reproducibility.patch b/dynamic-layers/clang-layer/recipes-opencl/igc/files/improve_src_package_reproducibility.patch
new file mode 100644
index 00000000..e9e9b439
--- /dev/null
+++ b/dynamic-layers/clang-layer/recipes-opencl/igc/files/improve_src_package_reproducibility.patch
@@ -0,0 +1,31 @@
+From 88b961ce4e2c9744631c51d13fa638e8a8a6c2a9 Mon Sep 17 00:00:00 2001
+From: Lee Chee Yang <chee.yang.lee@intel.com>
+Date: Wed, 2 Sep 2020 08:28:35 +0800
+Subject: [PATCH] Improve Reproducibility for src package
+
+Improve reproducibility for intel-graphics-compiler-src package.
+needs to pass build path as environment variable to the build.
+
+Upstream-Status: Inappropriate [applying --file-prefix-map in such way does not work for upstream]
+Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
+---
+ visa/CMakeLists.txt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/visa/CMakeLists.txt b/visa/CMakeLists.txt
+index 9c169592..ecea91db 100644
+--- a/visa/CMakeLists.txt
++++ b/visa/CMakeLists.txt
+@@ -105,8 +105,8 @@ endif()
+ # Set up the bison and flex targets. These commands will set up commands to generate the appropriate
+ # source files from the input grammars. It will also set up the dependencies correctly for any
+ # library or executable that uses the generated source
+-BISON_TARGET(CISAParser CISA.y ${CMAKE_CURRENT_BINARY_DIR}/CISA.tab.cpp COMPILE_FLAGS "-vt -p CISA")
+-FLEX_TARGET(CISAScanner CISA.l ${CMAKE_CURRENT_BINARY_DIR}/lex.CISA.cpp COMPILE_FLAGS "-PCISA ${WIN_FLEX_FLAG}")
++BISON_TARGET(CISAParser CISA.y ${CMAKE_CURRENT_BINARY_DIR}/CISA.tab.cpp COMPILE_FLAGS "-vt -p CISA --file-prefix-map=$ENV{B}=/igc/")
++FLEX_TARGET(CISAScanner CISA.l ${CMAKE_CURRENT_BINARY_DIR}/lex.CISA.cpp COMPILE_FLAGS "-PCISA -L ${WIN_FLEX_FLAG} ")
+ ADD_FLEX_BISON_DEPENDENCY(CISAScanner CISAParser)
+
+ add_custom_target(CISAScanner_target DEPENDS ${FLEX_CISAScanner_OUTPUTS} ${BISON_CISAParser_OUTPUTS})
+--
+2.25.1