forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.4 KiB
113 lines
3.4 KiB
#!/bin/sh |
|
# SPDX-License-Identifier: GPL-2.0 |
|
|
|
if [ $# -ne 2 ] |
|
then |
|
echo "Usage: headers_install.sh INFILE OUTFILE" |
|
echo |
|
echo "Prepares kernel header files for use by user space, by removing" |
|
echo "all compiler.h definitions and #includes, removing any" |
|
echo "#ifdef __KERNEL__ sections, and putting __underscores__ around" |
|
echo "asm/inline/volatile keywords." |
|
echo |
|
echo "INFILE: header file to operate on" |
|
echo "OUTFILE: output file which the processed header is written to" |
|
|
|
exit 1 |
|
fi |
|
|
|
# Grab arguments |
|
INFILE=$1 |
|
OUTFILE=$2 |
|
TMPFILE=$OUTFILE.tmp |
|
|
|
trap 'rm -f $OUTFILE $TMPFILE' EXIT |
|
|
|
# SPDX-License-Identifier with GPL variants must have "WITH Linux-syscall-note" |
|
if [ -n "$(sed -n -e "/SPDX-License-Identifier:.*GPL-/{/WITH Linux-syscall-note/!p}" $INFILE)" ]; then |
|
echo "error: $INFILE: missing \"WITH Linux-syscall-note\" for SPDX-License-Identifier" >&2 |
|
exit 1 |
|
fi |
|
|
|
sed -E -e ' |
|
s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g |
|
s/__attribute_const__([[:space:]]|$)/\1/g |
|
s@^#include <linux/compiler(|_types).h>@@ |
|
s/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g |
|
s/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g |
|
s@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @ |
|
' $INFILE > $TMPFILE || exit 1 |
|
|
|
scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $TMPFILE > $OUTFILE |
|
[ $? -gt 1 ] && exit 1 |
|
|
|
# Remove /* ... */ style comments, and find CONFIG_ references in code |
|
configs=$(sed -e ' |
|
:comment |
|
s:/\*[^*][^*]*:/*: |
|
s:/\*\*\**\([^/]\):/*\1: |
|
t comment |
|
s:/\*\*/: : |
|
t comment |
|
/\/\*/! b check |
|
N |
|
b comment |
|
:print |
|
P |
|
D |
|
:check |
|
s:^\(CONFIG_[[:alnum:]_]*\):\1\n: |
|
t print |
|
s:^[[:alnum:]_][[:alnum:]_]*:: |
|
s:^[^[:alnum:]_][^[:alnum:]_]*:: |
|
t check |
|
d |
|
' $OUTFILE) |
|
|
|
# The entries in the following list do not result in an error. |
|
# Please do not add a new entry. This list is only for existing ones. |
|
# The list will be reduced gradually, and deleted eventually. (hopefully) |
|
# |
|
# The format is <file-name>:<CONFIG-option> in each line. |
|
config_leak_ignores=" |
|
arch/alpha/include/uapi/asm/setup.h:CONFIG_ALPHA_LEGACY_START_ADDRESS |
|
arch/arc/include/uapi/asm/page.h:CONFIG_ARC_PAGE_SIZE_16K |
|
arch/arc/include/uapi/asm/page.h:CONFIG_ARC_PAGE_SIZE_4K |
|
arch/arc/include/uapi/asm/swab.h:CONFIG_ARC_HAS_SWAPE |
|
arch/arm/include/uapi/asm/ptrace.h:CONFIG_CPU_ENDIAN_BE8 |
|
arch/hexagon/include/uapi/asm/ptrace.h:CONFIG_HEXAGON_ARCH_VERSION |
|
arch/hexagon/include/uapi/asm/user.h:CONFIG_HEXAGON_ARCH_VERSION |
|
arch/ia64/include/uapi/asm/cmpxchg.h:CONFIG_IA64_DEBUG_CMPXCHG |
|
arch/m68k/include/uapi/asm/ptrace.h:CONFIG_COLDFIRE |
|
arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_NO |
|
arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_SUPPORT |
|
arch/x86/include/uapi/asm/auxvec.h:CONFIG_IA32_EMULATION |
|
arch/x86/include/uapi/asm/auxvec.h:CONFIG_X86_64 |
|
arch/x86/include/uapi/asm/mman.h:CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS |
|
include/uapi/asm-generic/fcntl.h:CONFIG_64BIT |
|
include/uapi/linux/atmdev.h:CONFIG_COMPAT |
|
include/uapi/linux/eventpoll.h:CONFIG_PM_SLEEP |
|
include/uapi/linux/hw_breakpoint.h:CONFIG_HAVE_MIXED_BREAKPOINTS_REGS |
|
include/uapi/linux/pktcdvd.h:CONFIG_CDROM_PKTCDVD_WCACHE |
|
" |
|
|
|
for c in $configs |
|
do |
|
leak_error=1 |
|
|
|
for ignore in $config_leak_ignores |
|
do |
|
if echo "$INFILE:$c" | grep -q "$ignore$"; then |
|
leak_error= |
|
break |
|
fi |
|
done |
|
|
|
if [ "$leak_error" = 1 ]; then |
|
echo "error: $INFILE: leak $c to user-space" >&2 |
|
exit 1 |
|
fi |
|
done |
|
|
|
rm -f $TMPFILE |
|
trap - EXIT
|
|
|