qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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gensyscalls.sh (2379B)

      1 #!/bin/sh
      2 #
      3 # Update syscall_nr.h files from linux headers asm-generic/unistd.h
      4 #
      5 # This code is licensed under the GPL version 2 or later.  See
      6 # the COPYING file in the top-level directory.
      7 #
      8 
      9 linux="$1"
     10 output="$2"
     11 
     12 TMP=$(mktemp -d)
     13 
     14 if [ "$linux" = "" ] ; then
     15     echo "Needs path to linux source tree" 1>&2
     16     exit 1
     17 fi
     18 
     19 if [ "$output" = "" ] ; then
     20     output="$PWD"
     21 fi
     22 
     23 upper()
     24 {
     25     echo "$1" | tr "[:lower:]" "[:upper:]" | tr "[:punct:]" "_"
     26 }
     27 
     28 qemu_arch()
     29 {
     30     case "$1" in
     31     arm64)
     32         echo "aarch64"
     33         ;;
     34     *)
     35         echo "$1"
     36         ;;
     37     esac
     38 }
     39 
     40 read_includes()
     41 {
     42     arch=$1
     43     bits=$2
     44 
     45      cpp -P -nostdinc -fdirectives-only \
     46         -D_UAPI_ASM_$(upper ${arch})_BITSPERLONG_H \
     47         -D__ASM_$(upper ${arch})_BITSPERLONG_H \
     48         -D__BITS_PER_LONG=${bits} \
     49         -I${linux}/arch/${arch}/include/uapi/ \
     50         -I${linux}/include/uapi \
     51         -I${TMP} \
     52         "${linux}/arch/${arch}/include/uapi/asm/unistd.h"
     53 }
     54 
     55 filter_defines()
     56 {
     57     grep -e "#define __NR_" -e "#define __NR3264"
     58 }
     59 
     60 rename_defines()
     61 {
     62     sed "s/ __NR_/ TARGET_NR_/g;s/(__NR_/(TARGET_NR_/g"
     63 }
     64 
     65 evaluate_values()
     66 {
     67     sed "s/#define TARGET_NR_/QEMU TARGET_NR_/" | \
     68     cpp -P -nostdinc | \
     69     sed "s/^QEMU /#define /"
     70 }
     71 
     72 generate_syscall_nr()
     73 {
     74     arch=$1
     75     bits=$2
     76     file="$3"
     77     guard="$(upper LINUX_USER_$(qemu_arch $arch)_$(basename "$file"))"
     78 
     79     (echo "/*"
     80     echo " * This file contains the system call numbers."
     81     echo " * Do not modify."
     82     echo " * This file is generated by scripts/gensyscalls.sh"
     83     echo " */"
     84     echo "#ifndef ${guard}"
     85     echo "#define ${guard}"
     86     echo
     87     read_includes $arch $bits | filter_defines | rename_defines | \
     88                                 evaluate_values | sort -n -k 3
     89     echo
     90     echo "#endif /* ${guard} */") > "$file"
     91 }
     92 
     93 mkdir "$TMP/asm"
     94 > "$TMP/asm/bitsperlong.h"
     95 
     96 generate_syscall_nr arm64 64 "$output/linux-user/aarch64/syscall_nr.h"
     97 generate_syscall_nr nios2 32 "$output/linux-user/nios2/syscall_nr.h"
     98 generate_syscall_nr openrisc 32 "$output/linux-user/openrisc/syscall_nr.h"
     99 
    100 generate_syscall_nr riscv 32 "$output/linux-user/riscv/syscall32_nr.h"
    101 generate_syscall_nr riscv 64 "$output/linux-user/riscv/syscall64_nr.h"
    102 generate_syscall_nr hexagon 32 "$output/linux-user/hexagon/syscall_nr.h"
    103 generate_syscall_nr loongarch 64 "$output/linux-user/loongarch64/syscall_nr.h"
    104 rm -fr "$TMP"