@@ -501,12 +501,12 @@ the "meta" layer at ``meta/recipes-bsp/formfactor``::
INHIBIT_DEFAULT_DEPS = "1"
do_install() {
- # Install file only if it has contents
+ # Install file only if it has contents
install -d ${D}${sysconfdir}/formfactor/
install -m 0644 ${S}/config ${D}${sysconfdir}/formfactor/
- if [ -s "${S}/machconfig" ]; then
- install -m 0644 ${S}/machconfig ${D}${sysconfdir}/formfactor/
- fi
+ if [ -s "${S}/machconfig" ]; then
+ install -m 0644 ${S}/machconfig ${D}${sysconfdir}/formfactor/
+ fi
}
In the main recipe, note the :term:`SRC_URI`
@@ -582,10 +582,10 @@ Directory`. Here is the main ``xserver-xf86-config`` recipe, which is named
ALLOW_EMPTY:${PN} = "1"
do_install () {
- if test -s ${WORKDIR}/xorg.conf; then
- install -d ${D}/${sysconfdir}/X11
- install -m 0644 ${WORKDIR}/xorg.conf ${D}/${sysconfdir}/X11/
- fi
+ if test -s ${WORKDIR}/xorg.conf; then
+ install -d ${D}/${sysconfdir}/X11
+ install -m 0644 ${WORKDIR}/xorg.conf ${D}/${sysconfdir}/X11/
+ fi
}
Here is the append file, which is named ``xserver-xf86-config_%.bbappend``
@@ -139,20 +139,20 @@ individual images through the ``list`` command. You can use the ``list``
command to return the available Wic images as follows::
$ wic list images
- genericx86 Create an EFI disk image for genericx86*
- edgerouter Create SD card image for Edgerouter
- beaglebone-yocto Create SD card image for Beaglebone
- qemuriscv Create qcow2 image for RISC-V QEMU machines
- mkefidisk Create an EFI disk image
- directdisk-multi-rootfs Create multi rootfs image using rootfs plugin
- directdisk Create a 'pcbios' direct disk image
+ genericx86 Create an EFI disk image for genericx86*
+ edgerouter Create SD card image for Edgerouter
+ beaglebone-yocto Create SD card image for Beaglebone
+ qemuriscv Create qcow2 image for RISC-V QEMU machines
+ mkefidisk Create an EFI disk image
+ directdisk-multi-rootfs Create multi rootfs image using rootfs plugin
+ directdisk Create a 'pcbios' direct disk image
efi-bootdisk
- mkhybridiso Create a hybrid ISO image
- directdisk-gpt Create a 'pcbios' direct disk image
- systemd-bootdisk Create an EFI disk image with systemd-boot
- sdimage-bootpart Create SD card image with a boot partition
- qemux86-directdisk Create a qemu machine 'pcbios' direct disk image
- directdisk-bootloader-config Create a 'pcbios' direct disk image with custom bootloader config
+ mkhybridiso Create a hybrid ISO image
+ directdisk-gpt Create a 'pcbios' direct disk image
+ systemd-bootdisk Create an EFI disk image with systemd-boot
+ sdimage-bootpart Create SD card image with a boot partition
+ qemux86-directdisk Create a qemu machine 'pcbios' direct disk image
+ directdisk-bootloader-config Create a 'pcbios' direct disk image with custom bootloader config
Once you know the list of available
@@ -283,20 +283,20 @@ following two locations::
Use the following command to list the available kickstart files::
$ wic list images
- genericx86 Create an EFI disk image for genericx86*
- edgerouter Create SD card image for Edgerouter
- beaglebone-yocto Create SD card image for Beaglebone
- qemuriscv Create qcow2 image for RISC-V QEMU machines
- mkefidisk Create an EFI disk image
- directdisk-multi-rootfs Create multi rootfs image using rootfs plugin
- directdisk Create a 'pcbios' direct disk image
+ genericx86 Create an EFI disk image for genericx86*
+ edgerouter Create SD card image for Edgerouter
+ beaglebone-yocto Create SD card image for Beaglebone
+ qemuriscv Create qcow2 image for RISC-V QEMU machines
+ mkefidisk Create an EFI disk image
+ directdisk-multi-rootfs Create multi rootfs image using rootfs plugin
+ directdisk Create a 'pcbios' direct disk image
efi-bootdisk
- mkhybridiso Create a hybrid ISO image
- directdisk-gpt Create a 'pcbios' direct disk image
- systemd-bootdisk Create an EFI disk image with systemd-boot
- sdimage-bootpart Create SD card image with a boot partition
- qemux86-directdisk Create a qemu machine 'pcbios' direct disk image
- directdisk-bootloader-config Create a 'pcbios' direct disk image with custom bootloader config
+ mkhybridiso Create a hybrid ISO image
+ directdisk-gpt Create a 'pcbios' direct disk image
+ systemd-bootdisk Create an EFI disk image with systemd-boot
+ sdimage-bootpart Create SD card image with a boot partition
+ qemux86-directdisk Create a qemu machine 'pcbios' direct disk image
+ directdisk-bootloader-config Create a 'pcbios' direct disk image with custom bootloader config
When you use an existing file, you
do not have to use the ``.wks`` extension. Here is an example in Raw
@@ -303,8 +303,8 @@ The following listings show the ``build.scc`` file and part of the
.
.
.
- char *dump_write = NULL, *files_source = NULL;
- int opt;
+ char *dump_write = NULL, *files_source = NULL;
+ int opt;
--
2.10.1
@@ -1749,10 +1749,10 @@ looks much like the one provided with the ``hello-mod`` template::
SRC := $(shell pwd)
all:
- $(MAKE) -C $(KERNEL_SRC) M=$(SRC)
+ $(MAKE) -C $(KERNEL_SRC) M=$(SRC)
modules_install:
- $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
+ $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
...
The important point to note here is the :term:`KERNEL_SRC` variable. The
@@ -1044,13 +1044,13 @@ section::
name: do_fork
ID: 944
format:
- field:unsigned short common_type; offset:0; size:2; signed:0;
- field:unsigned char common_flags; offset:2; size:1; signed:0;
- field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
- field:int common_pid; offset:4; size:4; signed:1;
- field:int common_padding; offset:8; size:4; signed:1;
+ field:unsigned short common_type; offset:0; size:2; signed:0;
+ field:unsigned char common_flags; offset:2; size:1; signed:0;
+ field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
+ field:int common_pid; offset:4; size:4; signed:1;
+ field:int common_padding; offset:8; size:4; signed:1;
- field:unsigned long __probe_ip; offset:12; size:4; signed:0;
+ field:unsigned long __probe_ip; offset:12; size:4; signed:0;
print fmt: "(%lx)", REC->__probe_ip
@@ -1535,17 +1535,17 @@ like ftrace to display the event as text. The format of the
name: kmalloc
ID: 313
format:
- field:unsigned short common_type; offset:0; size:2; signed:0;
- field:unsigned char common_flags; offset:2; size:1; signed:0;
- field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
- field:int common_pid; offset:4; size:4; signed:1;
- field:int common_padding; offset:8; size:4; signed:1;
-
- field:unsigned long call_site; offset:16; size:8; signed:0;
- field:const void * ptr; offset:24; size:8; signed:0;
- field:size_t bytes_req; offset:32; size:8; signed:0;
- field:size_t bytes_alloc; offset:40; size:8; signed:0;
- field:gfp_t gfp_flags; offset:48; size:4; signed:0;
+ field:unsigned short common_type; offset:0; size:2; signed:0;
+ field:unsigned char common_flags; offset:2; size:1; signed:0;
+ field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
+ field:int common_pid; offset:4; size:4; signed:1;
+ field:int common_padding; offset:8; size:4; signed:1;
+
+ field:unsigned long call_site; offset:16; size:8; signed:0;
+ field:const void * ptr; offset:24; size:8; signed:0;
+ field:size_t bytes_req; offset:32; size:8; signed:0;
+ field:size_t bytes_alloc; offset:40; size:8; signed:0;
+ field:gfp_t gfp_flags; offset:48; size:4; signed:0;
print fmt: "call_site=%lx ptr=%p bytes_req=%zu bytes_alloc=%zu gfp_flags=%s", REC->call_site, REC->ptr, REC->bytes_req, REC->bytes_alloc,
(REC->gfp_flags) ? __print_flags(REC->gfp_flags, "|", {(unsigned long)(((( gfp_t)0x10u) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | ((
@@ -2333,29 +2333,29 @@ first part of the filenames::
8,32 1 0 58.516990819 0 m N cfq3551 put_queue
CPU0 (sdc):
- Reads Queued: 0, 0KiB Writes Queued: 331, 26,284KiB
- Read Dispatches: 0, 0KiB Write Dispatches: 485, 40,484KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 0, 0KiB Writes Completed: 511, 41,000KiB
- Read Merges: 0, 0KiB Write Merges: 13, 160KiB
- Read depth: 0 Write depth: 2
- IO unplugs: 23 Timer unplugs: 0
+ Reads Queued: 0, 0KiB Writes Queued: 331, 26,284KiB
+ Read Dispatches: 0, 0KiB Write Dispatches: 485, 40,484KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 0, 0KiB Writes Completed: 511, 41,000KiB
+ Read Merges: 0, 0KiB Write Merges: 13, 160KiB
+ Read depth: 0 Write depth: 2
+ IO unplugs: 23 Timer unplugs: 0
CPU1 (sdc):
- Reads Queued: 0, 0KiB Writes Queued: 249, 15,800KiB
- Read Dispatches: 0, 0KiB Write Dispatches: 42, 1,600KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 0, 0KiB Writes Completed: 16, 1,084KiB
- Read Merges: 0, 0KiB Write Merges: 40, 276KiB
- Read depth: 0 Write depth: 2
- IO unplugs: 30 Timer unplugs: 1
+ Reads Queued: 0, 0KiB Writes Queued: 249, 15,800KiB
+ Read Dispatches: 0, 0KiB Write Dispatches: 42, 1,600KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 0, 0KiB Writes Completed: 16, 1,084KiB
+ Read Merges: 0, 0KiB Write Merges: 40, 276KiB
+ Read depth: 0 Write depth: 2
+ IO unplugs: 30 Timer unplugs: 1
Total (sdc):
- Reads Queued: 0, 0KiB Writes Queued: 580, 42,084KiB
- Read Dispatches: 0, 0KiB Write Dispatches: 527, 42,084KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 0, 0KiB Writes Completed: 527, 42,084KiB
- Read Merges: 0, 0KiB Write Merges: 53, 436KiB
- IO unplugs: 53 Timer unplugs: 1
+ Reads Queued: 0, 0KiB Writes Queued: 580, 42,084KiB
+ Read Dispatches: 0, 0KiB Write Dispatches: 527, 42,084KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 0, 0KiB Writes Completed: 527, 42,084KiB
+ Read Merges: 0, 0KiB Write Merges: 53, 436KiB
+ IO unplugs: 53 Timer unplugs: 1
Throughput (R/W): 0KiB/s / 719KiB/s
Events (sdc): 6,592 entries
@@ -2478,29 +2478,29 @@ And run blkparse on the host system using the device name::
8,32 1 0 177.266696560 0 m N cfq1267 put_queue
CPU0 (sdc):
- Reads Queued: 0, 0KiB Writes Queued: 270, 21,708KiB
- Read Dispatches: 59, 2,628KiB Write Dispatches: 495, 39,964KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 90, 2,752KiB Writes Completed: 543, 41,596KiB
- Read Merges: 0, 0KiB Write Merges: 9, 344KiB
- Read depth: 2 Write depth: 2
- IO unplugs: 20 Timer unplugs: 1
+ Reads Queued: 0, 0KiB Writes Queued: 270, 21,708KiB
+ Read Dispatches: 59, 2,628KiB Write Dispatches: 495, 39,964KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 90, 2,752KiB Writes Completed: 543, 41,596KiB
+ Read Merges: 0, 0KiB Write Merges: 9, 344KiB
+ Read depth: 2 Write depth: 2
+ IO unplugs: 20 Timer unplugs: 1
CPU1 (sdc):
- Reads Queued: 688, 2,752KiB Writes Queued: 381, 20,652KiB
- Read Dispatches: 31, 124KiB Write Dispatches: 59, 2,396KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 0, 0KiB Writes Completed: 11, 764KiB
- Read Merges: 598, 2,392KiB Write Merges: 88, 448KiB
- Read depth: 2 Write depth: 2
- IO unplugs: 52 Timer unplugs: 0
+ Reads Queued: 688, 2,752KiB Writes Queued: 381, 20,652KiB
+ Read Dispatches: 31, 124KiB Write Dispatches: 59, 2,396KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 0, 0KiB Writes Completed: 11, 764KiB
+ Read Merges: 598, 2,392KiB Write Merges: 88, 448KiB
+ Read depth: 2 Write depth: 2
+ IO unplugs: 52 Timer unplugs: 0
Total (sdc):
- Reads Queued: 688, 2,752KiB Writes Queued: 651, 42,360KiB
- Read Dispatches: 90, 2,752KiB Write Dispatches: 554, 42,360KiB
- Reads Requeued: 0 Writes Requeued: 0
- Reads Completed: 90, 2,752KiB Writes Completed: 554, 42,360KiB
- Read Merges: 598, 2,392KiB Write Merges: 97, 792KiB
- IO unplugs: 72 Timer unplugs: 1
+ Reads Queued: 688, 2,752KiB Writes Queued: 651, 42,360KiB
+ Read Dispatches: 90, 2,752KiB Write Dispatches: 554, 42,360KiB
+ Reads Requeued: 0 Writes Requeued: 0
+ Reads Completed: 90, 2,752KiB Writes Completed: 554, 42,360KiB
+ Read Merges: 598, 2,392KiB Write Merges: 97, 792KiB
+ IO unplugs: 72 Timer unplugs: 1
Throughput (R/W): 15KiB/s / 238KiB/s
Events (sdc): 9,301 entries
@@ -226,23 +226,23 @@ universal, the list includes them just in case:
As far as bootloaders are concerned, :term:`Initramfs` and "initrd"
images are still copied to RAM in the same way. That's why most
- most bootloaders refer to :term:`Initramfs` images as "initrd"
- or "init RAM disk".
+ most bootloaders refer to :term:`Initramfs` images as "initrd"
+ or "init RAM disk".
This kind of mechanism is typically used for two reasons:
- For booting the same kernel binary on multiple systems requiring
different device drivers. The :term:`Initramfs` image is then customized
- for each type of system, to include the specific kernel modules
+ for each type of system, to include the specific kernel modules
necessary to access the final root filesystem. This technique
- is used on all GNU / Linux distributions for desktops and servers.
+ is used on all GNU / Linux distributions for desktops and servers.
- For booting faster. As the root filesystem is extracted into RAM,
accessing the first user-space applications is very fast, compared
to having to initialize a block device, to access multiple blocks
from it, and to go through a filesystem having its own overhead.
For example, this allows to display a splashscreen very early,
- and to later take care of mounting the final root filesystem and
+ and to later take care of mounting the final root filesystem and
loading less time-critical kernel drivers.
This cpio archive can either be loaded to RAM by the bootloader,
@@ -286,14 +286,14 @@ example:
# CC=i586-poky-linux-gcc -m32 -march=i586 --sysroot=/opt/poky/2.5/sysroots/i586-poky-linux
# CC="gcc"
all: main.o module.o
- ${CC} main.o module.o -o target_bin
+ ${CC} main.o module.o -o target_bin
main.o: main.c module.h
- ${CC} -I . -c main.c
+ ${CC} -I . -c main.c
module.o: module.c
- module.h ${CC} -I . -c module.c
+ module.h ${CC} -I . -c module.c
clean:
- rm -rf *.o
- rm target_bin
+ rm -rf *.o
+ rm target_bin
4. *Make the Project:* Use the ``make`` command to create the binary
output file. Because variables are commented out in the Makefile, the