tablet/grub
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

INSTALL: Add information on using --build when cross-compiling

Browse Source 
The autoconf 2.65 manual [1] strongly recommends specifying the --build
option when the --host is used. Add this to the example and add a note
that this is recommended.

[1] https://www.gnu.org/software/autoconf/manual/autoconf-2.65/html_node/Hosts-and-Cross_002dCompilation.html

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Glenn Washburn 2022-03-18 01:43:46 -05:00 committed by Daniel Kiper
parent 2aa6717d57
commit 50ab32578b
1 changed files with 13 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
INSTALL
View File

@ -189,8 +189,9 @@ For this example the configure line might look like (more details below)
(some options are optional and included here for completeness but some rarely
used options are omitted):
./configure --host=x86_64-linux-gnu --target=arm-linux-gnueabihf \
--with-platform=efi BUILD_CC=gcc BUILD_PKG_CONFIG=pkg-config \
./configure --build=sparc64-freebsd --host=x86_64-linux-gnu \
--target=arm-linux-gnueabihf --with-platform=efi \
BUILD_CC=gcc BUILD_PKG_CONFIG=pkg-config \
HOST_CC=x86_64-linux-gnu-gcc HOST_CFLAGS='-g -O2' \
PKG_CONFIG=x86_64-linux-gnu-pkg-config TARGET_CC=arm-linux-gnueabihf-gcc \
TARGET_CFLAGS='-Os -march=armv8.3-a' TARGET_CCASFLAGS='-march=armv8.3-a' \
@ -198,6 +199,10 @@ used options are omitted):
TARGET_STRIP=arm-linux-gnueabihf-strip TARGET_NM=arm-linux-gnueabihf-nm \
TARGET_RANLIB=arm-linux-gnueabihf-ranlib LEX=flex
Note, that the autoconf 2.65 manual states that when using the --host argument
to configure, the --build argument should be specified as well. Not sending
--build, enters a compatibility mode that will be removed in the future.
Normally, for building a GRUB on amd64 with tools to run on amd64 to
generate images to run on ARM, using your Linux distribution's
packaged cross compiler, the following would suffice:
@ -209,13 +214,14 @@ version look at prerequisites. All tools not mentioned in this section under
corresponding platform are not needed for the platform in question.
- For build
1. BUILD_CC= to gcc able to compile for build. This is used, for
1. --build= to autoconf name of build.
2. BUILD_CC= to gcc able to compile for build. This is used, for
example, to compile build-gentrigtables which is then run to
generate sin and cos tables.
2. BUILD_CFLAGS= for C options for build.
3. BUILD_CPPFLAGS= for C preprocessor options for build.
4. BUILD_LDFLAGS= for linker options for build.
5. BUILD_PKG_CONFIG= for pkg-config for build (optional).
3. BUILD_CFLAGS= for C options for build.
4. BUILD_CPPFLAGS= for C preprocessor options for build.
5. BUILD_LDFLAGS= for linker options for build.
6. BUILD_PKG_CONFIG= for pkg-config for build (optional).
- For host
1. --host= to autoconf name of host.