a8da3cd61a
The libblkid library in util-linux uses fork. While it seems potentially possible to disable the parts of the library that use fork (the only parts using fork are parts related to LVM and Device Mapper, which are said to be legacy as they are replaced by sysfs based scanning, instead of having to fork to run a separate process). However, since libblkid is used by: - e2fsprogs, which uses lots of fork all over the place - udev, which most likely will also need fork There is not much point in making libblkid fork-less. As a consequence, this commit makes util-linux/libblkid unavailable on non-MMU architectures, and propagates the relevant dependency to the reverse dependencies of libblkid. This fixes the e2fsprogs build failure seen on Blackfin. The failure was due to a configure test of e2fsprogs which was trying to link a small test program against libblkid, which failed because there was an undefined reference to fork() in the libblkid code. Fixes: http://autobuild.buildroot.net/results/ee2c1568d16ac040011dd4d6d8b543ff9e9e2622/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> |
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arch | ||
board | ||
boot | ||
configs | ||
docs | ||
fs | ||
linux | ||
package | ||
support | ||
system | ||
toolchain | ||
.defconfig | ||
.gitignore | ||
CHANGES | ||
Config.in | ||
Config.in.legacy | ||
COPYING | ||
Makefile | ||
Makefile.legacy |
To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) Use your shiny new root filesystem. Depending on which sort of root filesystem you selected, you may want to loop mount it, chroot into it, nfs mount it on your target device, burn it to flash, or whatever is appropriate for your target system. You do not need to be root to build or run buildroot. Have fun! Offline build: ============== In order to do an offline-build (not connected to the net), fetch all selected source by issuing a $ make source before you disconnect. If your build-host is never connected, then you have to copy buildroot and your toplevel .config to a machine that has an internet-connection and issue "make source" there, then copy the content of your dl/ dir to the build-host. Building out-of-tree: ===================== Buildroot supports building out of tree with a syntax similar to the Linux kernel. To use it, add O=<directory> to the make command line, E.G.: $ make O=/tmp/build And all the output files (including .config) will be located under /tmp/build. More finegrained configuration: =============================== You can specify a config-file for uClibc: $ make UCLIBC_CONFIG_FILE=/my/uClibc.config And you can specify a config-file for busybox: $ make BUSYBOX_CONFIG_FILE=/my/busybox.config To use a non-standard host-compiler (if you do not have 'gcc'), make sure that the compiler is in your PATH and that the library paths are setup properly, if your compiler is built dynamically: $ make HOSTCC=gcc-4.3.orig HOSTCXX=gcc-4.3-mine Depending on your configuration, there are some targets you can use to use menuconfig of certain packages. This includes: $ make HOSTCC=gcc-4.3 linux-menuconfig $ make HOSTCC=gcc-4.3 uclibc-menuconfig $ make HOSTCC=gcc-4.3 busybox-menuconfig Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org