8210efcb15
Add a __SYSCALL_COMMON() macro to the syscall table, which simplifies syscalltbl.sh. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200313195144.164260-12-brgerst@gmail.com
59 lines
1.3 KiB
Bash
59 lines
1.3 KiB
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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in="$1"
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out="$2"
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syscall_macro() {
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local abi="$1"
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local nr="$2"
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local entry="$3"
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echo "__SYSCALL_${abi}($nr, $entry)"
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}
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emit() {
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local abi="$1"
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local nr="$2"
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local entry="$3"
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local compat="$4"
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local umlentry=""
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if [ "$abi" != "I386" -a -n "$compat" ]; then
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echo "a compat entry ($abi: $compat) for a 64-bit syscall makes no sense" >&2
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exit 1
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fi
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# For CONFIG_UML, we need to strip the __x64_sys prefix
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if [ "${entry}" != "${entry#__x64_sys}" ]; then
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umlentry="sys${entry#__x64_sys}"
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fi
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if [ -z "$compat" ]; then
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if [ -n "$entry" -a -z "$umlentry" ]; then
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syscall_macro "$abi" "$nr" "$entry"
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elif [ -n "$umlentry" ]; then # implies -n "$entry"
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echo "#ifdef CONFIG_X86"
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syscall_macro "$abi" "$nr" "$entry"
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echo "#else /* CONFIG_UML */"
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syscall_macro "$abi" "$nr" "$umlentry"
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echo "#endif"
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fi
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else
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echo "#ifdef CONFIG_X86_32"
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if [ -n "$entry" ]; then
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syscall_macro "$abi" "$nr" "$entry"
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fi
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echo "#else"
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syscall_macro "$abi" "$nr" "$compat"
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echo "#endif"
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fi
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}
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grep '^[0-9]' "$in" | sort -n | (
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while read nr abi name entry compat; do
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abi=`echo "$abi" | tr '[a-z]' '[A-Z]'`
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emit "$abi" "$nr" "$entry" "$compat"
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done
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) > "$out"
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