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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/trace/beauty/arch_errno_names.sh | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/trace/beauty/arch_errno_names.sh')
-rwxr-xr-x | tools/perf/trace/beauty/arch_errno_names.sh | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/arch_errno_names.sh b/tools/perf/trace/beauty/arch_errno_names.sh new file mode 100755 index 000000000..9f9ea45cd --- /dev/null +++ b/tools/perf/trace/beauty/arch_errno_names.sh @@ -0,0 +1,100 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Generate C file mapping errno codes to errno names. +# +# Copyright IBM Corp. 2018 +# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + +gcc="$1" +toolsdir="$2" +include_path="-I$toolsdir/include/uapi" + +arch_string() +{ + echo "$1" |sed -e 'y/- /__/' |tr '[[:upper:]]' '[[:lower:]]' +} + +asm_errno_file() +{ + local arch="$1" + local header + + header="$toolsdir/arch/$arch/include/uapi/asm/errno.h" + if test -r "$header"; then + echo "$header" + else + echo "$toolsdir/include/uapi/asm-generic/errno.h" + fi +} + +create_errno_lookup_func() +{ + local arch=$(arch_string "$1") + local nr name + + cat <<EoFuncBegin +static const char *errno_to_name__$arch(int err) +{ + switch (err) { +EoFuncBegin + + while read name nr; do + printf '\tcase %d: return "%s";\n' $nr $name + done + + cat <<EoFuncEnd + default: + return "(unknown)"; + } +} + +EoFuncEnd +} + +process_arch() +{ + local arch="$1" + local asm_errno=$(asm_errno_file "$arch") + + $gcc $CFLAGS $include_path -E -dM -x c $asm_errno \ + |grep -hE '^#define[[:blank:]]+(E[^[:blank:]]+)[[:blank:]]+([[:digit:]]+).*' \ + |awk '{ print $2","$3; }' \ + |sort -t, -k2 -nu \ + |IFS=, create_errno_lookup_func "$arch" +} + +create_arch_errno_table_func() +{ + local archlist="$1" + local default="$2" + local arch + + printf 'const char *arch_syscalls__strerrno(const char *arch, int err)\n' + printf '{\n' + for arch in $archlist; do + printf '\tif (!strcmp(arch, "%s"))\n' $(arch_string "$arch") + printf '\t\treturn errno_to_name__%s(err);\n' $(arch_string "$arch") + done + printf '\treturn errno_to_name__%s(err);\n' $(arch_string "$default") + printf '}\n' +} + +cat <<EoHEADER +/* SPDX-License-Identifier: GPL-2.0 */ + +#include <string.h> + +EoHEADER + +# Create list of architectures and ignore those that do not appear +# in tools/perf/arch +archlist="" +for arch in $(find $toolsdir/arch -maxdepth 1 -mindepth 1 -type d -printf "%f\n" | grep -v x86 | sort); do + test -d $toolsdir/perf/arch/$arch && archlist="$archlist $arch" +done + +for arch in x86 $archlist generic; do + process_arch "$arch" +done +create_arch_errno_table_func "x86 $archlist" "generic" |