bitbake.conf: Further cleanup compiler optimization flags

Move the -pipe option out of the optimization flags and directly into
the flags variables since we always use it now.

Also move the debug prefix mapping there to match the nativesdk case
which already does this.

Fix the documentation and two recipe usages to match the change.

(From OE-Core rev: 9badf68d78d995f7d5d4cf27e045f029fc6d4044)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 10 insertions, 9 deletions

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 02fe872d2c..5c875f34f8 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -610,10 +610,10 @@ BUILDSDK_CPPFLAGS = ""
 export CPPFLAGS = "${TARGET_CPPFLAGS}"
 TARGET_CPPFLAGS = ""
 
-export BUILD_CFLAGS = "${BUILD_CPPFLAGS} ${BUILD_OPTIMIZATION}"
-BUILDSDK_CFLAGS = "${BUILDSDK_CPPFLAGS} ${BUILD_OPTIMIZATION} ${DEBUG_PREFIX_MAP}"
+export BUILD_CFLAGS = "${BUILD_CPPFLAGS} ${BUILD_OPTIMIZATION} -pipe"
+BUILDSDK_CFLAGS = "${BUILDSDK_CPPFLAGS} ${BUILD_OPTIMIZATION} ${DEBUG_PREFIX_MAP} -pipe"
 export CFLAGS = "${TARGET_CFLAGS}"
-TARGET_CFLAGS = "${TARGET_CPPFLAGS} ${SELECTED_OPTIMIZATION}"
+TARGET_CFLAGS = "${TARGET_CPPFLAGS} ${SELECTED_OPTIMIZATION} ${DEBUG_PREFIX_MAP} -pipe"
 
 export BUILD_CXXFLAGS = "${BUILD_CFLAGS}"
 BUILDSDK_CXXFLAGS = "${BUILDSDK_CFLAGS}"
@@ -663,13 +663,14 @@ DEBUG_PREFIX_MAP ?= "-fcanon-prefix-map \
  -fmacro-prefix-map=${STAGING_DIR_HOST}= \
  -fdebug-prefix-map=${STAGING_DIR_NATIVE}= \
 "
-DEBUG_FLAGS ?= "-g ${DEBUG_PREFIX_MAP}"
+DEBUG_LEVELFLAG ?= "-g"
 
-FULL_OPTIMIZATION = "-O2 -pipe ${DEBUG_FLAGS}"
-DEBUG_OPTIMIZATION = "-Og ${DEBUG_FLAGS} -pipe"
+FULL_OPTIMIZATION = "-O2 ${DEBUG_LEVELFLAG}"
+DEBUG_OPTIMIZATION = "-Og ${DEBUG_LEVELFLAG}"
 SELECTED_OPTIMIZATION = "${@d.getVar(oe.utils.vartrue('DEBUG_BUILD', 'DEBUG_OPTIMIZATION', 'FULL_OPTIMIZATION', d))}"
 SELECTED_OPTIMIZATION[vardeps] += "FULL_OPTIMIZATION DEBUG_OPTIMIZATION DEBUG_BUILD"
-BUILD_OPTIMIZATION = "${@oe.utils.vartrue('DEBUG_BUILD', '-Og -g', '-O2', d)} -pipe"
+# compiler flags for native/nativesdk
+BUILD_OPTIMIZATION = "${@oe.utils.vartrue('DEBUG_BUILD', '-Og -g', '-O2', d)}"
 BUILD_OPTIMIZATION[vardeps] += "DEBUG_BUILD"
 
 ##################################################################
diff --git a/meta/conf/documentation.conf b/meta/conf/documentation.conf
index b0591881ba..155353eafc 100644
--- a/meta/conf/documentation.conf
+++ b/meta/conf/documentation.conf
@@ -132,7 +132,7 @@ D[doc] = "The destination directory."
 DATE[doc] = "The date the build was started using YMD format."
 DATETIME[doc] = "The date and time the build was started."
 DEBUG_BUILD[doc] = "Specifies to build packages with debugging information. This influences the value of the SELECTED_OPTIMIZATION variable."
-DEBUG_OPTIMIZATION[doc] = "The options to pass in TARGET_CFLAGS and CFLAGS when compiling a system for debugging. This variable defaults to '-Og ${DEBUG_FLAGS} -pipe'."
+DEBUG_OPTIMIZATION[doc] = "The options to pass in TARGET_CFLAGS and CFLAGS when compiling a system for debugging. This variable defaults to '-Og ${DEBUG_LEVELFLAG}'."
 DEFAULT_PREFERENCE[doc] = "Specifies a weak bias for recipe selection priority."
 DEPENDS[doc] = "Lists a recipe's build-time dependencies (i.e. other recipe files)."
 DEPLOY_DIR[doc] = "Points to the general area that the OpenEmbedded build system uses to place images, packages, SDKs and other output files that are ready to be used outside of the build system."
@@ -180,7 +180,7 @@ FILESPATH[doc] = "The default set of directories the OpenEmbedded build system u
 FILESYSTEM_PERMS_TABLES[doc] = "Allows you to define your own file permissions settings table as part of your configuration for the packaging process."
 FONT_EXTRA_RDEPENDS[doc] = "When a recipe inherits the fontcache class, this variable specifies runtime dependencies for font packages. This variable defaults to 'fontconfig-utils'."
 FONT_PACKAGES[doc] = "When a recipe inherits the fontcache class, this variable identifies packages containing font files that need to be cached by Fontconfig."
-FULL_OPTIMIZATION[doc]= "The options to pass in TARGET_CFLAGS and CFLAGS when compiling an optimized system. This variable defaults to '-O2 -pipe ${DEBUG_FLAGS}'."
+FULL_OPTIMIZATION[doc]= "The options to pass in TARGET_CFLAGS and CFLAGS when compiling an optimized system. This variable defaults to '-O2 ${DEBUG_LEVELFLAG}'."
 
 #G