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Subject[PATCH] scripts: unify system call table generation scripts
Date
System call table generation support is provided for
alpha, ia64, m68k, microblaze, mips, parisc, powerpc,
sh, sparc and xtensa architectures. The implementat-
ions are almost similar across all the above archte-
ctures.

In order to reduce the source code across all the
above architectures, create common ".sh" files and
keep it in the common directory, script/.

This will be a generic scripts which can use for all
the above architectures.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
scripts/syscallhdr.sh | 37 +++++++++++++++++++++++++++++++++++++
scripts/syscallnr.sh | 32 ++++++++++++++++++++++++++++++++
scripts/syscalltbl.sh | 37 +++++++++++++++++++++++++++++++++++++
3 files changed, 106 insertions(+)
create mode 100644 scripts/syscallhdr.sh
create mode 100644 scripts/syscallnr.sh
create mode 100644 scripts/syscalltbl.sh

diff --git a/scripts/syscallhdr.sh b/scripts/syscallhdr.sh
new file mode 100644
index 0000000..d03fe3d
--- /dev/null
+++ b/scripts/syscallhdr.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_`basename "$out" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+ -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+ printf "#ifndef %s\n" "${fileguard}"
+ printf "#define %s\n" "${fileguard}"
+ printf "\n"
+
+ nxt=0
+ while read nr abi name entry compat ; do
+ if [ -z "$offset" ]; then
+ printf "#define __NR_%s%s\t%s\n" \
+ "${prefix}" "${name}" "${nr}"
+ else
+ printf "#define __NR_%s%s\t(%s + %s)\n" \
+ "${prefix}" "${name}" "${offset}" "${nr}"
+ fi
+ nxt=$((nr+1))
+ done
+
+ printf "\n"
+ printf "#ifdef __KERNEL__\n"
+ printf "#define __NR_syscalls\t%s\n" "${nxt}"
+ printf "#endif\n"
+ printf "\n"
+ printf "#endif /* %s */" "${fileguard}"
+ printf "\n"
+) > "$out"
diff --git a/scripts/syscallnr.sh b/scripts/syscallnr.sh
new file mode 100644
index 0000000..8cf33fa
--- /dev/null
+++ b/scripts/syscallnr.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_`basename "$out" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+ -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+ printf "#ifndef %s\n" "${fileguard}"
+ printf "#define %s\n" "${fileguard}"
+ printf "\n"
+
+ nxt=0
+ while read nr abi name entry compat ; do
+ nxt=$((nr+1))
+ done
+
+ if [ ! -z "$prefix" ]; then
+ printf "#define __NR_%s_Linux_syscalls\t%s\n" "${prefix}" "${nxt}"
+ if [ ! -z "$offset" ]; then
+ printf "#define __NR_%s_Linux\t%s\n" "${prefix}" "${offset}"
+ fi
+ fi
+ printf "\n"
+ printf "#endif /* %s */" "${fileguard}"
+ printf "\n"
+) > "$out"
diff --git a/scripts/syscalltbl.sh b/scripts/syscalltbl.sh
new file mode 100644
index 0000000..f60f762
--- /dev/null
+++ b/scripts/syscalltbl.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+ t_nxt="$1"
+ t_nr="$2"
+ t_entry="$3"
+
+ while [ $t_nxt -lt $t_nr ]; do
+ printf "__SYSCALL(%s,sys_ni_syscall)\n" "${t_nxt}"
+ t_nxt=$((t_nxt+1))
+ done
+ printf "__SYSCALL(%s,%s)\n" "${t_nxt}" "${t_entry}"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+ nxt=0
+ if [ -z "$offset" ]; then
+ offset=0
+ fi
+
+ while read nr abi name entry compat ; do
+ if [ "$my_abi" = "c32" -o "$my_abi" = "64_o32" ] &&
+ [ ! -z "$compat" ]; then
+ emit $((nxt+offset)) $((nr+offset)) $compat
+ else
+ emit $((nxt+offset)) $((nr+offset)) $entry
+ fi
+ nxt=$((nr+1))
+ done
+) > "$out"
--
1.9.1
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