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maint/ioctls_sym.sh
544 строки
15 KB
Dmitry V. Levin
Replace *_IOC_SHUTDOWN constants with FS_IOC_SHUTDOWN.
03 май 2026, 11:00
03 май 2026, 11:00
1f1aefc
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#!/bin/sh # Copyright (c) 2015 Dmitry V. Levin <ldv@strace.io> # Copyright (c) 2015-2026 The strace developers. # All rights reserved. # # SPDX-License-Identifier: LGPL-2.1-or-later set -efu export LC_ALL=C # This script processes header files containing ioctl command definitions in # symbolic form, assuming that these definitions match the following regular # expressions: r_define='^[[:space:]]*#[[:space:]]*define[[:space:]]\+' r_cmd_name='[A-Z][A-Z0-9_]*' r_io='\([A-Z]\+\)\?_S\?\(IO\|IOW\|IOR\|IOWR\|IOC\|IOCTL\)' r_value='[[:space:]]\+'"$r_io"'[[:space:]]*([^)]' regexp="${r_define}${r_cmd_name}${r_value}" : "${uname_m:=$(uname -m)}" me="${0##*/}" msg() { printf >&2 '%s\n' "$me: $*" } prefix= case $# in 1) inc_dir="$1"; shift ;; 2) inc_dir="$1"; shift prefix="$1"; shift ;; *) echo >&2 "usage: $me include-directory [prefix]" exit 1 ;; esac [ -z "$prefix" ] || prefix="${prefix%%/}/" tmpdir= cleanup() { trap - EXIT [ -z "$tmpdir" ] || rm -rf -- "$tmpdir" exit "$@" } trap 'cleanup $?' EXIT trap 'cleanup 1' HUP PIPE INT QUIT TERM tmpdir="$(mktemp -dt "$me.XXXXXX")" # list interesting files in $inc_dir. cd "$inc_dir" inc_dir="$(pwd -P)" find . -type f -name '*.h' -exec grep -l "$r_value" -- '{}' + \ > "$tmpdir"/headers1.list ||: [ -s "$tmpdir"/headers1.list ] || exit 0 cd - > /dev/null sed 's|^\./\(uapi/\)\?||' < "$tmpdir"/headers1.list > "$tmpdir"/headers.list LC_COLLATE=C sort -u -o "$tmpdir"/headers.list "$tmpdir"/headers.list msg "processing $(wc -l < "$tmpdir"/headers.list) header files from $inc_dir" failed=0 READELF="${READELF:-readelf}" CC="${CC:-gcc}" CPP="${CPP:-cpp}" CPPFLAGS="${CPPFLAGS-} -D__EXPORTED_HEADERS__" CFLAGS="${CFLAGS:--Wall -O2} -gdwarf-2 -D__EXPORTED_HEADERS__" INCLUDES="-I$inc_dir/uapi -I$inc_dir ${INCLUDES-}" # Hook onto <asm-generic/ioctl.h> and <asm/ioctl.h> for d in asm-generic asm; do mkdir "$tmpdir/$d" cat > "$tmpdir/$d"/ioctl.h <<__EOF__ #include_next <$d/ioctl.h> #undef _IOC_NONE #define _IOC_NONE (2<<7) #undef _IOC_READ #define _IOC_READ (2<<8) #undef _IOC_WRITE #define _IOC_WRITE (2<<9) #undef _IOC #define _IOC(dir, type, nr, size) \ char \ d[1 + (dir)], \ n[1 + (((unsigned) (type) << _IOC_TYPESHIFT) | \ ((unsigned) (nr) << _IOC_NRSHIFT))], \ s[1 + (size)] __EOF__ done INCLUDES="-I$tmpdir $INCLUDES" process_file() { local f="$1"; shift # Common code for every processed file. cat > "$tmpdir"/printents.c <<-__EOF__ #include <linux/compiler_attributes.h> #undef __alloc_size__ #include <asm/termbits.h> #include <asm/ioctl.h> #include <linux/types.h> #include <linux/limits.h> #include <linux/major.h> #include <sys/types.h> #include <sys/socket.h> #include <stdint.h> #include <stdbool.h> #ifndef NULL # define NULL ((void*)0) #endif #ifndef __force # define __force #endif #ifndef __user # define __user #endif #ifndef __iomem # define __iomem #endif #ifndef __noreturn # define __noreturn __attribute__((noreturn)) #endif #ifndef __packed # define __packed __attribute__((packed)) #endif #ifndef __no_sanitize_or_inline # define __no_sanitize_or_inline #endif #ifndef __no_kasan_or_inline # define __no_kasan_or_inline #endif typedef signed char s8; typedef unsigned char u8; typedef signed short s16; typedef unsigned short u16; typedef signed int s32; typedef unsigned int u32; typedef signed long long s64; typedef unsigned long long u64; #include "fixes.h" #ifndef UL # define UL(x) (_UL(x)) #endif #ifndef ULL # define ULL(x) (_ULL(x)) #endif #include <asm/bitsperlong.h> #ifndef BITS_PER_LONG # define BITS_PER_LONG __BITS_PER_LONG #endif #include "$f" #include "defs.h" __EOF__ case "$uname_m" in riscv*) touch "$tmpdir/asm/cpufeature-macros.h" ;; esac # Soft pre-include workarounds for some processed files. Fragile. case "$f" in *asm/amigayle.h) return 0 # false positive ;; *asm/cmb.h) echo '#include <asm/dasd.h>' ;; *asm/core_*.h) return 0 # false positives ;; *asm*/ioctls.h) cat <<-'__EOF__' #include <asm/termios.h> #include <linux/serial.h> __EOF__ ;; drm/sis_drm.h) echo '#include <drm/drm.h>' ;; *drm/*_drm.h) echo '#include <drm/drm.h>' > "$tmpdir/drm.h" ;; fbio.h|*/fbio.h) cat <<-'__EOF__' #include <linux/fb.h> #undef FBIOGETCMAP #undef FBIOPUTCMAP __EOF__ ;; *linux/atm_zatm.h) cat <<-'__EOF__' #include <linux/atm.h> #ifndef _LINUX_TIME_H # define _LINUX_TIME_H #endif #ifndef _UAPI_LINUX_TIME_H # define _UAPI_LINUX_TIME_H #endif __EOF__ ;; *linux/atm?*.h) echo '#include <linux/atm.h>' ;; *linux/auto_fs*.h) echo 'typedef u32 compat_ulong_t;' ;; *linux/coda.h|*android_alarm.h) cat <<-'__EOF__' #ifndef _LINUX_TIME_H # define _LINUX_TIME_H #endif #ifndef _UAPI_LINUX_TIME_H # define _UAPI_LINUX_TIME_H #endif __EOF__ ;; *linux/fs.h|*linux/ncp_fs.h) cat <<-'__EOF__' #include <linux/blktrace_api.h> #include <linux/fiemap.h> __EOF__ ;; *linux/ndctl.h) echo '#define PAGE_SIZE 0' ;; *linux/if_pppox.h) echo '#include <netinet/in.h>' ;; *linux/if_tun.h|*linux/ppp-ioctl.h) echo '#include <linux/filter.h>' ;; *linux/isdn_ppp.h|*linux/gsmmux.h) echo '#include <linux/if.h>' ;; *media*/saa6588.h) echo 'typedef struct poll_table_struct poll_table;' ;; *linux/ivtvfb.h|*linux/meye.h|*media/*.h) echo '#include <linux/videodev2.h>' ;; *linux/kvm.h) case "$uname_m" in i?86|x86_64|aarch64|mips*|ppc*|s390*) ;; *) return 0 ;; # not applicable esac ;; *linux/omap3isp.h) echo 'struct omap3isp_stat_data_time32 {uint32_t dummy32[4]; uint16_t dummy16[3]; };' ;; *linux/platform_data/cros_ec_chardev.h) cat <<-'__EOF__' #include <linux/const.h> #define BIT(nr) (UL(1) << (nr)) #define DECLARE_FLEX_ARRAY(TYPE, NAME) __DECLARE_FLEX_ARRAY(TYPE, NAME) struct cros_ec_command {uint32_t dummy32[5]; uint8_t dummy8[0]; }; __EOF__ ;; *linux/sonet.h) echo '#include <linux/atmioc.h>' ;; *linux/usbdevice_fs.h) cat <<-'__EOF__' struct usbdevfs_ctrltransfer32 { __u32 unused[4]; }; struct usbdevfs_bulktransfer32 { __u32 unused[4]; }; struct usbdevfs_disconnectsignal32 { __u32 unused[2]; }; struct usbdevfs_urb32 { __u8 unused[42]; }; struct usbdevfs_ioctl32 { __u32 unused[3]; }; __EOF__ ;; logger.h|*/logger.h) echo 'typedef __u32 kuid_t;' ;; *sound/asequencer.h) cat <<-'__EOF__' #include <sound/asound.h> struct snd_seq_queue_owner { __u32 unused[0]; }; __EOF__ ;; *sound/emu10k1.h) cat <<-'__EOF__' #include <sound/asound.h> #ifndef DECLARE_BITMAP # define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) # define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, 8 * sizeof(long)) # define DECLARE_BITMAP(name,bits) unsigned long name[BITS_TO_LONGS(bits)] #endif __EOF__ ;; *video/sstfb.h) echo 'struct fb_info;' ;; *xen/evtchn.h|*xen/gntdev.h) cat <<-'__EOF__' typedef uint32_t grant_ref_t; typedef uint16_t domid_t; __EOF__ ;; *xen/interface/*.h) return 0 # false positives ;; *xen/privcmd.h) return 0 # too much work to make it compileable ;; esac > "$tmpdir"/fixes.h cat > "$tmpdir"/header.in <<-__EOF__ #include <asm/bitsperlong.h> #ifndef BITS_PER_LONG # define BITS_PER_LONG __BITS_PER_LONG #endif #include "$f" __EOF__ if [ -f "$inc_dir/uapi/$f" ]; then s="$inc_dir/uapi/$f" elif [ -f "$inc_dir/$f" ]; then s="$inc_dir/$f" else msg "$f: file not found" return 1 fi [ -n "${f##*/*}" ] || mkdir -p "$tmpdir/${f%/*}" # Hard workarounds for some processed files. Very fragile. case "$f" in *asm-generic/ioctls.h) # Filter out macros defined using unavailable types. case "$uname_m" in alpha*|ppc*) grep -Fv 'struct termios2' < "$s" > "$tmpdir/$f" ;; esac ;; *asm/ioctls.h) case "$uname_m" in ppc*) # Revert Linux commit v6.16-rc3~41^2. sed 's/^\(#define[[:space:]]\+[^[:space:]]\+[[:space:]]\+\)0x[[:xdigit:]]\+[[:space:]]\+\/\*[[:space:]]\+\([^*]\+struct termio)\) \*\//\1\2/' \ < "$s" > "$tmpdir/$f" esac ;; *acpi/*|*linux/i2o.h|*media*/exynos-fimc.h|*media/v4l2-subdev.h|*net/bluetooth/*|net/nfc/nci_core.h) # Fetch macros only. grep "${r_define}${r_cmd_name}" < "$s" > "$tmpdir/$f" ;; binder.h|*/binder.h) # Convert enums to macros. sed -E '/^enum (binder|\{)/,/^};/d' < "$s" > "$tmpdir/$f" sed -En '/^enum (binder|\{)/,/^};/ s/^[[:space:]].*/&/p' < "$s" | sed -n 's/^[[:space:]]*\([A-Z][A-Z_0-9]*\)[[:space:]]*=[[:space:]]*_\(IO\|IOW\|IOR\|IOWR\|IOC\)[[:space:]]*(/#define \1 _\2(/ s/^\(#define .*)\),$/\1/p s/^\(#define .*,\)$/\1 \\/p s/^\([[:space:]]\+[^),]\+)\),$/\1/p' >> "$tmpdir/$f" ;; *drm/r128_drm.h) # Filter out the code that references unknown types. sed '/drm_r128_clear2_t/d' < "$s" > "$tmpdir/$f" ;; *drm/sis_drm.h) # Filter out the code that references unknown types. sed '/^struct sis_file_private/,/^}/d' < "$s" > "$tmpdir/$f" ;; *drm/via_drm.h) # Create the file it attempts to include. touch "$tmpdir/via_drmclient.h" # Filter out the code that references unknown types. sed '/^struct via_file_private/,/^}/d' < "$s" > "$tmpdir/$f" ;; *drm/xe_drm.h) sed -E '/^enum drm_xe/,/^};/d' < "$s" > "$tmpdir/$f" sed -En '/^enum drm_xe/,/^};/ s/^[[:space:]].*/&/p' < "$s" | sed -n 's/^[[:space:]]*\([A-Z][A-Z_0-9]*\)[[:space:]]*=[[:space:]]*_\(IO\|IOW\|IOR\|IOWR\|IOC\)[[:space:]]*(/#define \1 _\2(/ s/^\(#define .*)\),$/\1/p s/^\(#define .*,\)$/\1 \\/p s/^\([[:space:]]\+[^),]\+)\),$/\1/p' >> "$tmpdir/$f" ;; *drm/nova_drm.h) sed -E '/^enum /,/^};/d' < "$s" > "$tmpdir/$f" sed -En '/^enum /,/^};/ s/^[[:space:]].*/&/p' < "$s" | sed -n 's/^[[:space:]]*\([A-Z][A-Z_0-9]*\)[[:space:]]*=[[:space:]]*\(DRM_\(IO\|IOW\|IOR\|IOWR\|IOC\)\)[[:space:]]*(/#define \1 \2(/ s/^\(#define .*)\),$/\1/p s/^\(#define .*,\)$/\1 \\/p s/^\([[:space:]]\+[^),]\+)\),$/\1/p' >> "$tmpdir/$f" ;; *linux/gpib_ioctl.h) sed -E '/^enum gpib_ioctl/,/^};/d' < "$s" > "$tmpdir/$f" sed -En '/^enum gpib_ioctl/,/^};/ s/^[[:space:]].*/&/p' < "$s" | sed -n 's/^[[:space:]]*\([A-Z][A-Z_0-9]*\)[[:space:]]*=[[:space:]]*_\(IO\|IOW\|IOR\|IOWR\|IOC\)[[:space:]]*(/#define \1 _\2(/ s/^\(#define .*)\),$/\1/p s/^\(#define .*,\)$/\1 \\/p s/^\([[:space:]]\+[^),]\+)\),$/\1/p' >> "$tmpdir/$f" ;; *linux/dma-buf.h) # Filter out duplicates. sed '/\<DMA_BUF_SET_NAME\>/d' < "$s" > "$tmpdir/$f" ;; *linux/nilfs2_fs.h) # Create the file it attempts to include. touch "$tmpdir/asm/bug.h" ;; *linux/videodev2.h) # Force time64 based definitions. sed -e 's/__KERNEL__/__linux__/' \ -e 's/linux\/types\.h/linux\/time_types.h/' \ < "$s" > "$tmpdir/$f" ;; *linux/vmw_vmci_defs.h) # Fetch ioctl macros only. grep "${r_define}I" < "$s" > "$tmpdir/$f" ;; *media/v4l2-common.h) # Fetch one piece of code containing ioctls definitions. sed -n '/\* s_config \*/,/ ---/p' < "$s" >> "$tmpdir/$f" ;; *media/v4l2-ioctl.h) echo 'struct old_timespec32 {int32_t dummy[2];};' >> "$tmpdir/$f" echo 'struct old_timeval32 {int32_t dummy[2];};' >> "$tmpdir/$f" # Fetch one piece of code containing ioctls definitions. awk '/^struct v4l2_event_time32/{p=1}/#endif/{p=0}p{print}' < "$s" >> "$tmpdir/$f" ;; *sound/pcm.h) echo '#include <uapi/sound/asound.h>' > "$tmpdir/$f" # Fetch one piece of code containing ioctls definitions. awk '/^struct snd_pcm_status64 {/{p=1}/#endif/{p=0}p{print}' < "$s" >> "$tmpdir/$f" ;; openpromio.h|*/openpromio.h|fbio.h|*/fbio.h) # Create the file it attempts to include. mkdir -p "$tmpdir/linux" touch "$tmpdir/linux/compiler.h" esac if [ -f "$tmpdir/$f" ]; then s="$tmpdir/$f" fi # This may fail if the file includes unavailable headers. # In case of success it outputs both the #define directives # and the result of preprocessing. $CPP $CPPFLAGS -dD $INCLUDES < "$tmpdir"/header.in > "$tmpdir"/header.out # Soft post-preprocess workarounds. Fragile. case "$f" in *linux/btrfs.h) sed -E -i '/[[:space:]]BTRFS_IOC_([GS]ET_FSLABEL|SHUTDOWN)[[:space:]]/d' \ "$tmpdir"/header.out ;; *linux/exfat.h) sed -i "/[[:space:]]EXFAT_IOC_SHUTDOWN[[:space:]]/d" \ "$tmpdir"/header.out ;; *linux/ext4.h) sed -E -i "/[[:space:]]EXT4_IOC(32_GROUP_ADD|_SHUTDOWN)[[:space:]]/d" \ "$tmpdir"/header.out ;; *linux/f2fs.h) sed -i "/[[:space:]]F2FS_IOC_SHUTDOWN[[:space:]]/d" \ "$tmpdir"/header.out ;; *linux/kvm.h) arm_list='KVM_ARM_[A-Z_]+' ppc_list='KVM_ALLOCATE_RMA|KVM_CREATE_SPAPR_TCE|KVM_CREATE_SPAPR_TCE_64|KVM_PPC_[A-Z1-9_]+' s390_list='KVM_S390_[A-Z_]+' x86_list='KVM_GET_CPUID2|KVM_GET_DEBUGREGS|KVM_GET_EMULATED_CPUID|KVM_GET_LAPIC|KVM_GET_MSRS|KVM_GET_MSR_FEATURE_INDEX_LIST|KVM_GET_MSR_INDEX_LIST|KVM_GET_NESTED_STATE|KVM_GET_PIT|KVM_GET_PIT2|KVM_GET_SREGS2|KVM_GET_SUPPORTED_CPUID|KVM_GET_SUPPORTED_HV_CPUID|KVM_GET_VCPU_EVENTS|KVM_GET_XCRS|KVM_GET_XSAVE|KVM_GET_XSAVE2|KVM_HYPERV_EVENTFD|KVM_SET_CPUID|KVM_SET_CPUID2|KVM_SET_DEBUGREGS|KVM_SET_LAPIC|KVM_SET_MEMORY_ALIAS|KVM_SET_MSRS|KVM_SET_NESTED_STATE|KVM_SET_PIT|KVM_SET_PIT2|KVM_SET_PMU_EVENT_FILTER|KVM_SET_SREGS2|KVM_SET_VCPU_EVENTS|KVM_SET_XCRS|KVM_SET_XSAVE|KVM_XEN_[A-Z_]+|KVM_X86_[A-Z_]+' case "$uname_m" in aarch64|arm*) list="$ppc_list|$s390_list|$x86_list" ;; ppc*) list="$arm_list|$s390_list|$x86_list" ;; s390*) list="$arm_list|$ppc_list|$x86_list" ;; i?86|x86_64*) list="$arm_list|$ppc_list|$s390_list" ;; *) list="$arm_list|$ppc_list|$s390_list|$x86_list" ;; esac sed -E -i "/[[:space:]]($list)[[:space:]]/d" "$tmpdir"/header.out ;; *linux/v4l2-subdev.h) sed -E -i '/[[:space:]]VIDIOC_SUBDEV_(DV_TIMINGS_CAP|ENUM_DV_TIMINGS|ENUMSTD|G_DV_TIMINGS|G_EDID|G_STD|QUERY_DV_TIMINGS|QUERYSTD|S_DV_TIMINGS|S_EDID|S_STD)[[:space:]]/d' \ "$tmpdir"/header.out ;; esac # Need to exclude ioctl commands defined elsewhere. local_defines='^[[:space:]]*#[[:space:]]*define[[:space:]]\+\('"$r_cmd_name"'\)[[:space:]]' sed -n 's/'"$local_defines"'.*/\1\\/p' "$s" > "$tmpdir"/local_names r_local_names="$(tr '\n' '|' < "$tmpdir"/local_names)" r_local_names="${r_local_names%%|}" r_local_names="${r_local_names%%\\}" # Keep this in sync with $regexp by replacing $r_cmd_name with $r_local_names. defs_regexp="${r_define}\($r_local_names\)${r_value}" # This outputs lines in the following format: # struct {IOCTL_CMD_NAME;} ioc_IOCTL_CMD_NAME; sed -n 's/'"$defs_regexp"'.*/struct {\1;} ioc_\1;/p' \ < "$tmpdir"/header.out > "$tmpdir"/defs.h # If something is wrong with the file, this will fail. $CC $INCLUDES $CFLAGS -c -o "$tmpdir"/printents.o "$tmpdir"/printents.c $READELF --wide --debug-dump=info "$tmpdir"/printents.o \ > "$tmpdir"/debug-dump sed -E -n ' /^[[:space:]]*<1>/,/^[[:space:]]*<1><[^>]+>: Abbrev Number: 0/!d /^[[:space:]]*<[^>]*><[^>]*>: Abbrev Number: 0/d s/^[[:space:]]*<[[:xdigit:]]+>[[:space:]]+// s/^[[:space:]]*((<[[:xdigit:]]+>){2}):[[:space:]]+/\1\n/ s/[[:space:]]+$// p' "$tmpdir"/debug-dump > "$tmpdir"/debug-info gawk -v HEADER_NAME="$prefix$f" -f "${0%/*}"/ioctls_sym.awk \ "$tmpdir"/debug-info > "$tmpdir"/ioctlents cat "$tmpdir"/ioctlents msg "$f: fetched $(grep -c '^{' "$tmpdir"/ioctlents) ioctl entries" } while read f; do (process_file "$f" < /dev/null) [ $? -eq 0 ] || { msg "$f: failed to process" failed=$((1 + failed)) } done < "$tmpdir"/headers.list [ $failed -eq 0 ] || msg "failed to process $failed file(s)"