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author | 2025-03-18 22:07:37 -0700 | |
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committer | 2025-03-20 22:58:20 -0700 | |
commit | 16ab5c708d9980464a0e034f6eccdece8cbe2dae (patch) | |
tree | 728731645e115acaa3df45b7689da6699f346b3d /tools/perf/scripts/syscalltbl.sh | |
parent | perf syscalltbl: Use lookup table containing multiple architectures (diff) | |
download | wireguard-linux-16ab5c708d9980464a0e034f6eccdece8cbe2dae.tar.xz wireguard-linux-16ab5c708d9980464a0e034f6eccdece8cbe2dae.zip |
perf build: Remove Makefile.syscalls
Now a single beauty file is generated and used by all architectures,
remove the per-architecture Makefiles, Kbuild files and previous
generator script.
Note: there was conversation with Charlie Jenkins
<charlie@rivosinc.com> and they'd written an alternate approach to
support multiple architectures:
https://lore.kernel.org/all/20250114-perf_syscall_arch_runtime-v1-1-5b304e408e11@rivosinc.com/
It would have been better to have helped Charlie fix their series (my
apologies) but they agreed that the approach taken here was likely
best for longer term maintainability:
https://lore.kernel.org/lkml/Z6Jk_UN9i69QGqUj@ghost/
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Howard Chu <howardchu95@gmail.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Link: https://lore.kernel.org/r/20250319050741.269828-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to '')
-rwxr-xr-x | tools/perf/scripts/syscalltbl.sh | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/tools/perf/scripts/syscalltbl.sh b/tools/perf/scripts/syscalltbl.sh deleted file mode 100755 index a39b3013b103..000000000000 --- a/tools/perf/scripts/syscalltbl.sh +++ /dev/null @@ -1,76 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -# -# Generate a syscall table header. -# -# Each line of the syscall table should have the following format: -# -# NR ABI NAME [NATIVE] [COMPAT] -# -# NR syscall number -# ABI ABI name -# NAME syscall name -# NATIVE native entry point (optional) -# COMPAT compat entry point (optional) - -set -e - -usage() { - echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2 - echo >&2 - echo >&2 " INFILE input syscall table" - echo >&2 " OUTFILE output header file" - echo >&2 - echo >&2 "options:" - echo >&2 " --abis ABIS ABI(s) to handle (By default, all lines are handled)" - exit 1 -} - -# default unless specified by options -abis= - -while [ $# -gt 0 ] -do - case $1 in - --abis) - abis=$(echo "($2)" | tr ',' '|') - shift 2;; - -*) - echo "$1: unknown option" >&2 - usage;; - *) - break;; - esac -done - -if [ $# -ne 2 ]; then - usage -fi - -infile="$1" -outfile="$2" - -sorted_table=$(mktemp /tmp/syscalltbl.XXXXXX) -grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | sort -n > $sorted_table - -echo "static const char *const syscall_num_to_name[] = {" > $outfile -# the params are: nr abi name entry compat -# use _ for intentionally unused variables according to SC2034 -while read nr _ name _ _; do - echo " [$nr] = \"$name\"," >> $outfile -done < $sorted_table -echo "};" >> $outfile - -echo "static const uint16_t syscall_sorted_names[] = {" >> $outfile - -# When sorting by name, add a suffix of 0s upto 20 characters so that system -# calls that differ with a numerical suffix don't sort before those -# without. This default behavior of sort differs from that of strcmp used at -# runtime. Use sed to strip the trailing 0s suffix afterwards. -grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | awk '{printf $3; for (i = length($3); i < 20; i++) { printf "0"; }; print " " $1}'| sort | sed 's/\([a-zA-Z1-9]\+\)0\+ \([0-9]\+\)/\1 \2/' > $sorted_table -while read name nr; do - echo " $nr, /* $name */" >> $outfile -done < $sorted_table -echo "};" >> $outfile - -rm -f $sorted_table |