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kernel: Use new kernel configuration rendering method

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Import kernel-config infrastructure from BLFS and use it for kernel
configuration.  Note that kernel-config.py is slightly different from
BLFS: we need role="nodump" for <screen> here.
This commit is contained in:
Xi Ruoyao 2023-08-01 00:08:56 +08:00
parent 2cf01ab702
commit 70bf5512d9
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GPG Key ID: ACAAD20E19E710E3
16 changed files with 518 additions and 90 deletions
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103
chapter10/kernel.xml
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@ -130,84 +130,15 @@
<para>Be sure to enable/disable/set the following features or the system might
not work correctly or boot at all:</para>
<screen role="nodump" revision="sysv"><emphasis role='blue'>G</emphasis>eneral setup ---&gt;
[ ] <emphasis role='blue'>C</emphasis>ompile the kernel with warnings as errors [CONFIG_WERROR]
<emphasis role='blue'>C</emphasis>PU/Task time and stats accounting ---&gt;
[*] <emphasis role='blue'>P</emphasis>ressure stall information tracking [CONFIG_PSI]
[ ] <emphasis role='blue'>R</emphasis>equire boot parameter to enable pressure stall information tracking
[CONFIG_PSI_DEFAULT_DISABLED]
&lt; &gt; <emphasis role='blue'>E</emphasis>nable kernel headers through /sys/kernel/kheaders.tar.xz [CONFIG_IKHEADERS]
[*] <emphasis role='blue'>C</emphasis>ontrol Group support [CONFIG_CGROUPS] ---&gt;
[*] M<emphasis role='blue'>e</emphasis>mory controller [CONFIG_MEMCG]
[ ] <emphasis role='blue'>C</emphasis>onfigure standard kernel features (expert users) [CONFIG_EXPERT]
<!-- To editors: for updating kernel configuration, edit
kernel/*.toml and regenerate kernel/*.xml with
"make -C kernel KERNEL_TREE=</usr/src/linux-&linux-version> -->
<emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
[*] <emphasis role='blue'>B</emphasis>uild a relocatable kernel [CONFIG_RELOCATABLE]
[*] <emphasis role='blue'>R</emphasis>andomize the address of the kernel image (KASLR) [CONFIG_RANDOMIZE_BASE]
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="kernel/sysv.xml"/>
<emphasis role='blue'>G</emphasis>eneral architecture-dependent options ---&gt;
[*] <emphasis role='blue'>S</emphasis>tack Protector buffer overflow detection [CONFIG_STACKPROTECTOR]
[*] <emphasis role='blue'>S</emphasis>trong Stack Protector [CONFIG_STACKPROTECTOR_STRONG]
<emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
<emphasis role='blue'>G</emphasis>eneric Driver Options ---&gt;
[ ] <emphasis role='blue'>S</emphasis>upport for uevent helper [CONFIG_UEVENT_HELPER]
[*] M<emphasis role='blue'>a</emphasis>intain a devtmpfs filesystem to mount at /dev [CONFIG_DEVTMPFS]
[*] <emphasis role='blue'>A</emphasis>utomount devtmpfs at /dev, after the kernel mounted the rootfs
[CONFIG_DEVTMPFS_MOUNT]
<emphasis role='blue'>G</emphasis>raphics support ---&gt;
<emphasis role='blue'>F</emphasis>rame buffer Devices ---&gt;
&lt;*&gt; <emphasis role='blue'>S</emphasis>upport for frame buffer devices ---&gt;
<emphasis role='blue'>C</emphasis>onsole display driver support ---&gt;
[*] <emphasis role='blue'>F</emphasis>ramebuffer Console support [CONFIG_FRAMEBUFFER_CONSOLE]</screen>
<screen role="nodump" revision="systemd">
General setup ---&gt;
[ ] Compile the kernel with warnings as errors [CONFIG_WERROR]
[ ] Auditing Support [CONFIG_AUDIT]
CPU/Task time and stats accounting ---&gt;
[*] Pressure stall information tracking [CONFIG_PSI]
[ ] Require boot parameter to enable pressure stall information tracking
[CONFIG_PSI_DEFAULT_DISABLED]
&lt; &gt; Enable kernel headers through /sys/kernel/kheaders.tar.xz [CONFIG_IKHEADERS]
[*] Control Group support [CONFIG_CGROUPS] ---&gt;
[*] Memory controller [CONFIG_MEMCG]
[ ] Configure standard kernel features (expert users) [CONFIG_EXPERT]
Processor type and features ---&gt;
[*] Build a relocatable kernel [CONFIG_RELOCATABLE]
[*] Randomize the address of the kernel image (KASLR) [CONFIG_RANDOMIZE_BASE]
General architecture-dependent options ---&gt;
[*] Enable seccomp to safely compute untrusted bytecode [CONFIG_SECCOMP]
[*] Stack Protector buffer overflow detection [CONFIG_STACKPROTECTOR]
[*] Strong Stack Protector [CONFIG_STACKPROTECTOR_STRONG]
[*] Networking support ---&gt; [CONFIG_NET]
Networking options ---&gt;
[*] TCP/IP networking [CONFIG_INET]
&lt;*&gt; The IPv6 protocol [CONFIG_IPV6]
Device Drivers ---&gt;
Generic Driver Options ---&gt;
[ ] Support for uevent helper [CONFIG_UEVENT_HELPER]
[*] Maintain a devtmpfs filesystem to mount at /dev [CONFIG_DEVTMPFS]
[*] Automount devtmpfs at /dev, after the kernel mounted the rootfs
[CONFIG_DEVTMPFS_MOUNT]
Firmware Loader ---&gt;
[ ] Enable the firmware sysfs fallback mechanism [CONFIG_FW_LOADER_USER_HELPER]
Firmware Drivers ---&gt;
[*] Export DMI identification via sysfs to userspace [CONFIG_DMIID]
Graphics support ---&gt;
Frame buffer Devices ---&gt;
&lt;*&gt; Support for frame buffer devices ---&gt;
Console display driver support ---&gt;
[*] Framebuffer Console support [CONFIG_FRAMEBUFFER_CONSOLE]
File systems ---&gt;
[*] Inotify support for userspace [CONFIG_INOTIFY_USER]
Pseudo filesystems ---&gt;
[*] Tmpfs POSIX Access Control Lists [CONFIG_TMPFS_POSIX_ACL]</screen>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="kernel/systemd.xml"/>
<para>Enable some additional features if you are building a 64-bit
system. If you are using menuconfig, enable them in the order of
@ -216,31 +147,23 @@ File systems ---&gt;
<parameter>CONFIG_X86_X2APIC</parameter> because an option only
shows up after its dependencies are selected.</para>
<screen role="nodump"><emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
[*] <emphasis role='blue'>S</emphasis>upport x2apic [CONFIG_X86_X2APIC]
Device Drivers ---&gt;
[*] <emphasis role='blue'>P</emphasis>CI Support ---&gt; [CONFIG_PCI]
[*] M<emphasis role='blue'>e</emphasis>ssage Signaled Interrupts (MSI and MSI-X) [CONFIG_PCI_MSI]
[*] <emphasis role='blue'>I</emphasis>OMMU Hardware Support ---&gt; [CONFIG_IOMMU_SUPPORT]
[*] <emphasis role='blue'>S</emphasis>upport for Interrupt Remapping [CONFIG_IRQ_REMAP]</screen>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="kernel/x2apic.xml"/>
<para>If you are building a 32-bit system running on a hardware
with RAM more than 4GB, adjust the configuration so the kernel will
be able to use up to 64GB physical RAM:</para>
<screen role="nodump"><emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
H<emphasis role='blue'>i</emphasis>gh Memory Support ---&gt;
(X) <emphasis role='blue'>6</emphasis>4GB [CONFIG_HIGHMEM64G]</screen>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="kernel/highmem.xml"/>
<para>If the partition for the LFS system is in a NVME SSD (i. e. the
device node for the partition is <filename>/dev/nvme*</filename>
instead of <filename>/dev/sd*</filename>), enable NVME support or
the LFS system won't boot:</para>
<screen role="nodump"><emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
N<emphasis role='blue'>V</emphasis>ME Support ---&gt;
&lt;*&gt; N<emphasis role='blue'>V</emphasis>M Express block device [CONFIG_BLK_DEV_NVME]</screen>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="kernel/nvme.xml"/>
</note>
<note revision="systemd">

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chapter10/kernel/.gitignore vendored Normal file
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__pycache__
s-kernel-version

19
chapter10/kernel/Makefile Normal file
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INPUT = $(wildcard *.toml)
OUTPUT = $(patsubst %.toml, %.xml, $(INPUT))
ifeq ($(KERNEL_TREE),)
$(error "must set KERNEL_TREE=/path/to/kernel/source")
endif
all: $(OUTPUT)
kernel.version: s-kernel-version; @true
s-kernel-version: Makefile kernel_version.py
./kernel_version.py $(KERNEL_TREE) > tmp-kernel.version
if ! diff tmp-kernel.version $@ 2>/dev/null >/dev/null; then \
mv tmp-kernel.version kernel.version; \
fi
touch s-kernel-version
%.xml: %.toml kernel-config.py kernel_version.py kernel.version
./kernel-config.py $(KERNEL_TREE) $< > $@

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chapter10/kernel/highmem.toml Normal file
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HIGHMEM64G='X'

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chapter10/kernel/highmem.xml Normal file
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- Automatically generated by kernel-config.py
DO NOT EDIT! -->
<screen role="nodump"><emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
H<emphasis role='blue'>i</emphasis>gh Memory Support ---&gt;
(X) <emphasis role='blue'>6</emphasis>4GB [HIGHMEM64G]</screen>

293
chapter10/kernel/kernel-config.py Executable file
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@ -0,0 +1,293 @@
#!/usr/bin/env python3
# SPDX-License-Identifier: MIT
# Copyright 2023 The LFS Editors
# Stupid script to render "mconf"-style kernel configuration
# Usage: kernel-config.py [path to kernel tree] [needed config].toml
# The toml file should be like:
# for bool and tristate:
# EXT4="*"
# DRM="*M"
# EXPERT=" "
# DRM_I915="*M"
# for choice:
# HIGHMEM64G="X"
# an entry with comment:
# DRM_I915 = { value = " *M", comment = "for i915, crocus, or iris" }
choice_bit = 1 << 30
ind0 = 0
ind1 = 0
menu_id = 1
stack = []
if_stack = []
expand_var_mp = { 'SRCARCH': 'x86' }
main_dep = {}
def expand_var(s):
for k in expand_var_mp:
s = s.replace('$(' + k + ')', expand_var_mp[k])
return s
def pop_stack(cond):
global ind0, ind1, stack
assert(cond(stack[-1][0]))
s, i0, i1, _ = stack[-1]
stack = stack[:-1]
ind0 -= i0
ind1 -= i1
def pop_stack_while(cond):
while stack and cond(stack[-1][0]):
pop_stack(cond)
def cur_menu():
global stack
return stack[-1][3] if stack else 0
def cur_if():
global if_stack
return if_stack[-1][:] if if_stack else []
def clean_dep(d):
d = d.strip()
if d.endswith('=y') or d.endswith('=M'):
d = d[:-2]
elif d.endswith(' != ""'):
d = d[:-6]
return d
def parse_config(buf):
global ind0, ind1, stack, menu_id
is_choice = buf[0].strip() == 'choice'
is_menu = buf[0].startswith('menu') or is_choice
is_nonconfig_menu = buf[0].startswith('menu ') or is_choice
key = None if is_nonconfig_menu else buf[0].split()[1].strip()
title = buf[0][len('menu '):] if is_nonconfig_menu else None
deps = ['menu'] + cur_if()
klass = None
for line in buf[1:]:
line = line.strip()
if line.startswith('depends on '):
new_deps = line[len('depends on '):].split('&&')
deps += [clean_dep(x) for x in new_deps]
elif line.startswith('prompt'):
title = line[len('prompt '):]
else:
for prefix in ['tristate', 'bool', 'string']:
if line.startswith(prefix + ' '):
title = line[len(prefix) + 1:]
klass = prefix
elif line == prefix:
klass = prefix
elif line.startswith('def_' + prefix + ' '):
klass = prefix
else:
continue
if '"' in line:
tail = line[line.rfind('"') + 1:].strip()
if tail[:3] == 'if ':
deps += [clean_dep(x) for x in tail[3:].split('&&')]
pop_stack_while(lambda x: x not in deps)
menu_id += is_menu
internal_key = key or menu_id
if stack:
fa = stack[-1][0]
if fa == 'menu':
fa = cur_menu() & ~choice_bit
main_dep[internal_key] = fa
val = known_config.get(key)
comment = None
forced = None
if type(val) == dict:
comment = val.get('comment')
forced = val.get('forced')
val = val['value']
klass = klass or 'string'
if title:
title = title.strip().lstrip('"')
title = title[:title.find('"')]
if not val:
pass
elif klass == 'string':
val = '(' + val + ')'
else:
assert((val == 'X') == bool(cur_menu() & choice_bit))
if (val == 'X'):
val = '(X)'
else:
val = list(val)
val.sort()
for c in val:
if c not in 'M* ' or (c == 'M' and klass != 'tristate'):
raise Exception('unknown setting %s for %s' % (c, key))
bracket = None
if klass == 'tristate' and forced != '*' :
bracket = '{}' if forced else '<>'
else:
bracket = '--' if forced else '[]'
val = bracket[0] + '/'.join(val) + bracket[1]
arrow = ' --->' if is_menu else ''
r = [ind0, val, ind1, title, arrow, internal_key, cur_menu(), comment]
# Don't indent for untitled (internal) entries
x = 2 if title else 0
key = key or 'menu'
menu = (menu_id if is_menu else cur_menu())
menu |= choice_bit if is_choice else 0
stack_ent = (key, 2, 0, menu) if is_menu else (key, 0, x, menu)
ind0 += stack_ent[1]
ind1 += stack_ent[2]
stack += [stack_ent]
return r
def load_kconfig(file):
global ind0, ind1, stack, path, menu_id, if_stack
r = []
config_buf = []
with open(path + file) as f:
for line in f:
if config_buf:
if not (line.startswith('\t') or line.startswith(' ')):
r += [parse_config(config_buf)]
config_buf = []
else:
config_buf += [line]
continue
if line.startswith('source') or line.startswith('\tsource'):
sub = expand_var(line.strip().split()[1].strip('"'))
r += load_kconfig(sub)
elif line.startswith('config') or line.startswith('menu'):
config_buf = [line]
elif line.startswith('choice'):
config_buf = [line]
elif line.startswith('endmenu') or line.startswith('endchoice'):
pop_stack_while(lambda x: x != 'menu')
pop_stack(lambda x: x == 'menu')
elif line.startswith('if '):
line = line[3:]
top = cur_if()
top += [x.strip() for x in line.split("&&")]
if_stack += [top]
elif line.startswith('endif'):
if_stack = if_stack[:-1]
return r
known_config = {}
def escape(x):
return x.replace('<', '&lt;').replace('>', '&gt;')
from sys import argv
import tomllib
path = argv[1]
if path[-1] != '/':
path += '/'
with open(argv[2], 'rb') as f:
known_config = tomllib.load(f)
r = load_kconfig('Kconfig')
# Refcount all menus
index_ikey = {}
for i in reversed(range(len(r))):
index_ikey[r[i][5]] = i
for i in reversed(range(len(r))):
if r[i][1] != None:
key = r[i][5]
fa = main_dep.get(key)
if not fa:
continue
j = index_ikey[fa]
if type(fa) == int or not r[j][3]:
# The main dependency is a menu or untitled magic entry,
# just mark it used
r[j][1] = ''
if r[j][1] is None:
raise Exception('[%s] needs unselected [%s]' % (key, fa))
r = [i for i in r if i[1] != None and i[3]]
# Now we are going to pretty-print r
## Calculate the maximum value length for each menu
max_val_len = {}
for _, val, _, _, _, _, menu, _ in r:
x = max_val_len.get(menu) or 0
max_val_len[menu] = max(x, len(val))
## Output
max_line = 80
buf = []
done = [x[5] for x in r] + ['revision']
for i in known_config:
if i not in done:
raise Exception("%s seems not exist" % i)
for i0, val, i1, title, arrow, key, menu, comment in r:
rem = max_line
if val:
val += (max_val_len[menu] - len(val)) * ' '
rem -= i0 + i1 + bool(val) + len(val)
line = i0 * ' ' + escape(val) + (i1 + bool(val)) * ' '
rem -= len(arrow)
if len(title) > rem:
title = title[:rem - 3] + '...'
b = title.lstrip('YyMmNnHh')
a = title[:len(title) - len(b)]
b0 = "<emphasis role='blue'>" + escape(b[0]) + "</emphasis>"
line += escape(a) + b0 + escape(b[1:]) + escape(arrow)
rem -= len(title)
key = ' [' + key + ']' if type(key) == str else ''
if len(key) <= rem:
line += (rem - len(key)) * ' ' + key
else:
key = '... ' + key
line += '\n' + ' ' * (max_line - len(key)) + key
if type(comment) == str:
comment = [comment]
if comment:
comment = '\n'.join([' ' * i0 + '# ' + line for line in comment])
line = escape(comment) + ':\n' + line
buf += [line.rstrip()]
from jinja2 import Template
t = Template('''<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- Automatically generated by kernel-config.py
DO NOT EDIT! -->
<screen role="nodump"{{ rev }}>{{ '\n'.join(buf) }}</screen>''')
rev = known_config.get('revision')
rev = ' revision="%s"' % rev if rev else ''
print(t.render(rev = rev, buf = buf))

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6.4.7

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chapter10/kernel/kernel_version.py Executable file
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#!/usr/bin/env python3
def kernel_version(path):
version = None
patchlevel = None
sublevel = None
with open(path + 'Makefile') as f:
for line in f:
if line.startswith('VERSION ='):
version = line[len('VERSION ='):].strip()
elif line.startswith('PATCHLEVEL ='):
patchlevel = line[len('PATCHLEVEL ='):].strip()
elif line.startswith('SUBLEVEL ='):
sublevel = line[len('SUBLEVEL ='):].strip()
assert(version and patchlevel and sublevel)
return '.'.join([version, patchlevel, sublevel])
if __name__ == '__main__':
from sys import argv
path = argv[1]
if path[:-1] != '/':
path += '/'
print(kernel_version(path))

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BLK_DEV_NVME='*'

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chapter10/kernel/nvme.xml Normal file
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- Automatically generated by kernel-config.py
DO NOT EDIT! -->
<screen role="nodump"><emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
N<emphasis role='blue'>V</emphasis>ME Support ---&gt;
&lt;*&gt; N<emphasis role='blue'>V</emphasis>M Express block device [BLK_DEV_NVME]</screen>

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chapter10/kernel/systemd.toml Normal file
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# This part should be sync with sysv.toml
WERROR=' '
PSI='*'
PSI_DEFAULT_DISABLED=' '
IKHEADERS=' '
CGROUPS='*'
MEMCG='*'
EXPERT=' '
RELOCATABLE='*'
RANDOMIZE_BASE='*'
STACKPROTECTOR='*'
STACKPROTECTOR_STRONG='*'
UEVENT_HELPER=' '
DEVTMPFS='*'
DEVTMPFS_MOUNT='*'
FB='*'
FRAMEBUFFER_CONSOLE='*'
AUDIT=' '
NET='*'
INET='*'
IPV6='*'
FW_LOADER=' *'
FW_LOADER_USER_HELPER='*'
DMIID='*'
INOTIFY_USER='*'
TMPFS='*'
TMPFS_POSIX_ACL='*'
revision='systemd'

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- Automatically generated by kernel-config.py
DO NOT EDIT! -->
<screen role="nodump" revision="systemd"><emphasis role='blue'>G</emphasis>eneral setup ---&gt;
[ ] <emphasis role='blue'>C</emphasis>ompile the kernel with warnings as errors [WERROR]
[ ] <emphasis role='blue'>A</emphasis>uditing support [AUDIT]
<emphasis role='blue'>C</emphasis>PU/Task time and stats accounting ---&gt;
[*] <emphasis role='blue'>P</emphasis>ressure stall information tracking [PSI]
[ ] <emphasis role='blue'>R</emphasis>equire boot parameter to enable pressure stall information tracking
... [PSI_DEFAULT_DISABLED]
&lt; &gt; <emphasis role='blue'>E</emphasis>nable kernel headers through /sys/kernel/kheaders.tar.xz [IKHEADERS]
[*] <emphasis role='blue'>C</emphasis>ontrol Group support ---&gt; [CGROUPS]
[*] M<emphasis role='blue'>e</emphasis>mory controller [MEMCG]
[ ] <emphasis role='blue'>C</emphasis>onfigure standard kernel features (expert users) ---&gt; [EXPERT]
<emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
[*] <emphasis role='blue'>B</emphasis>uild a relocatable kernel [RELOCATABLE]
[*] <emphasis role='blue'>R</emphasis>andomize the address of the kernel image (KASLR) [RANDOMIZE_BASE]
<emphasis role='blue'>G</emphasis>eneral architecture-dependent options ---&gt;
[*] <emphasis role='blue'>S</emphasis>tack Protector buffer overflow detection [STACKPROTECTOR]
[*] <emphasis role='blue'>S</emphasis>trong Stack Protector [STACKPROTECTOR_STRONG]
[*] N<emphasis role='blue'>e</emphasis>tworking support ---&gt; [NET]
N<emphasis role='blue'>e</emphasis>tworking options ---&gt;
[*] <emphasis role='blue'>T</emphasis>CP/IP networking [INET]
&lt;*&gt; <emphasis role='blue'>T</emphasis>he IPv6 protocol ---&gt; [IPV6]
<emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
<emphasis role='blue'>G</emphasis>eneric Driver Options ---&gt;
[ ] <emphasis role='blue'>S</emphasis>upport for uevent helper [UEVENT_HELPER]
[*] M<emphasis role='blue'>a</emphasis>intain a devtmpfs filesystem to mount at /dev [DEVTMPFS]
[*] <emphasis role='blue'>A</emphasis>utomount devtmpfs at /dev, after the kernel mounted the rootfs
... [DEVTMPFS_MOUNT]
<emphasis role='blue'>F</emphasis>irmware loader ---&gt;
&lt; /*&gt; <emphasis role='blue'>F</emphasis>irmware loading facility [FW_LOADER]
[*] <emphasis role='blue'>E</emphasis>nable the firmware sysfs fallback mechanism
... [FW_LOADER_USER_HELPER]
<emphasis role='blue'>F</emphasis>irmware Drivers ---&gt;
[*] <emphasis role='blue'>E</emphasis>xport DMI identification via sysfs to userspace [DMIID]
<emphasis role='blue'>G</emphasis>raphics support ---&gt;
<emphasis role='blue'>F</emphasis>rame buffer Devices ---&gt;
&lt;*&gt; <emphasis role='blue'>S</emphasis>upport for frame buffer devices ---&gt; [FB]
<emphasis role='blue'>C</emphasis>onsole display driver support ---&gt;
[*] <emphasis role='blue'>F</emphasis>ramebuffer Console support [FRAMEBUFFER_CONSOLE]
<emphasis role='blue'>F</emphasis>ile systems ---&gt;
[*] <emphasis role='blue'>I</emphasis>notify support for userspace [INOTIFY_USER]
<emphasis role='blue'>P</emphasis>seudo filesystems ---&gt;
[*] <emphasis role='blue'>T</emphasis>mpfs virtual memory file system support (former shm fs) [TMPFS]
[*] <emphasis role='blue'>T</emphasis>mpfs POSIX Access Control Lists [TMPFS_POSIX_ACL]</screen>

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WERROR=' '
PSI='*'
PSI_DEFAULT_DISABLED=' '
IKHEADERS=' '
CGROUPS='*'
MEMCG='*'
EXPERT=' '
RELOCATABLE='*'
RANDOMIZE_BASE='*'
STACKPROTECTOR='*'
STACKPROTECTOR_STRONG='*'
UEVENT_HELPER=' '
DEVTMPFS='*'
DEVTMPFS_MOUNT='*'
FB='*'
FRAMEBUFFER_CONSOLE='*'
revision='sysv'

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chapter10/kernel/sysv.xml Normal file
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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<screen role="nodump" revision="sysv"><emphasis role='blue'>G</emphasis>eneral setup ---&gt;
[ ] <emphasis role='blue'>C</emphasis>ompile the kernel with warnings as errors [WERROR]
<emphasis role='blue'>C</emphasis>PU/Task time and stats accounting ---&gt;
[*] <emphasis role='blue'>P</emphasis>ressure stall information tracking [PSI]
[ ] <emphasis role='blue'>R</emphasis>equire boot parameter to enable pressure stall information tracking
... [PSI_DEFAULT_DISABLED]
&lt; &gt; <emphasis role='blue'>E</emphasis>nable kernel headers through /sys/kernel/kheaders.tar.xz [IKHEADERS]
[*] <emphasis role='blue'>C</emphasis>ontrol Group support ---&gt; [CGROUPS]
[*] M<emphasis role='blue'>e</emphasis>mory controller [MEMCG]
[ ] <emphasis role='blue'>C</emphasis>onfigure standard kernel features (expert users) ---&gt; [EXPERT]
<emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
[*] <emphasis role='blue'>B</emphasis>uild a relocatable kernel [RELOCATABLE]
[*] <emphasis role='blue'>R</emphasis>andomize the address of the kernel image (KASLR) [RANDOMIZE_BASE]
<emphasis role='blue'>G</emphasis>eneral architecture-dependent options ---&gt;
[*] <emphasis role='blue'>S</emphasis>tack Protector buffer overflow detection [STACKPROTECTOR]
[*] <emphasis role='blue'>S</emphasis>trong Stack Protector [STACKPROTECTOR_STRONG]
<emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
<emphasis role='blue'>G</emphasis>eneric Driver Options ---&gt;
[ ] <emphasis role='blue'>S</emphasis>upport for uevent helper [UEVENT_HELPER]
[*] M<emphasis role='blue'>a</emphasis>intain a devtmpfs filesystem to mount at /dev [DEVTMPFS]
[*] <emphasis role='blue'>A</emphasis>utomount devtmpfs at /dev, after the kernel mounted the rootfs
... [DEVTMPFS_MOUNT]
<emphasis role='blue'>G</emphasis>raphics support ---&gt;
<emphasis role='blue'>F</emphasis>rame buffer Devices ---&gt;
&lt;*&gt; <emphasis role='blue'>S</emphasis>upport for frame buffer devices ---&gt; [FB]
<emphasis role='blue'>C</emphasis>onsole display driver support ---&gt;
[*] <emphasis role='blue'>F</emphasis>ramebuffer Console support [FRAMEBUFFER_CONSOLE]</screen>

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X86_X2APIC='*'
PCI='*'
PCI_MSI='*'
IOMMU_SUPPORT='*'
IRQ_REMAP='*'

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<screen role="nodump"><emphasis role='blue'>P</emphasis>rocessor type and features ---&gt;
[*] <emphasis role='blue'>S</emphasis>upport x2apic [X86_X2APIC]
<emphasis role='blue'>D</emphasis>evice Drivers ---&gt;
[*] <emphasis role='blue'>P</emphasis>CI support ---&gt; [PCI]
[*] M<emphasis role='blue'>e</emphasis>ssage Signaled Interrupts (MSI and MSI-X) [PCI_MSI]
[*] <emphasis role='blue'>I</emphasis>OMMU Hardware Support ---&gt; [IOMMU_SUPPORT]
[*] <emphasis role='blue'>S</emphasis>upport for Interrupt Remapping [IRQ_REMAP]</screen>