mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
8fcc8d7df9
Allow the CC compiler to accept a CFLAGS environment variable. This doesn't change the code generated but makes it easier to integrate running the shell script in build systems like bazel. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Igor Lubashev <ilubashe@akamai.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wei Li <liwei391@huawei.com> Link: http://lore.kernel.org/lkml/20200306071110.130202-4-irogers@google.com [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
101 lines
2.1 KiB
Bash
Executable File
101 lines
2.1 KiB
Bash
Executable File
#!/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"
|