2 # SPDX-License-Identifier: GPL-2.0
4 # Generate C file mapping errno codes to errno names.
6 # Copyright IBM Corp. 2018
7 # Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
11 include_path="-I$toolsdir/include/uapi"
15 echo "$1" |sed -e 'y/- /__/' |tr '[[:upper:]]' '[[:lower:]]'
22 header="$toolsdir/arch/$arch/include/uapi/asm/errno.h"
23 if test -r "$header"; then
26 echo "$toolsdir/include/uapi/asm-generic/errno.h"
30 create_errno_lookup_func()
32 arch=$(arch_string "$1")
34 printf "static const char *errno_to_name__%s(int err)\n{\n\tswitch (err) {\n" $arch
36 while read name nr; do
37 printf '\tcase %d: return "%s";\n' $nr $name
40 printf '\tdefault: return "(unknown)";\n\t}\n}\n'
46 asm_errno=$(asm_errno_file "$arch")
48 $gcc $CFLAGS $include_path -E -dM -x c $asm_errno \
49 |grep -hE '^#define[[:blank:]]+(E[^[:blank:]]+)[[:blank:]]+([[:digit:]]+).*' \
50 |awk '{ print $2","$3; }' \
52 |IFS=, create_errno_lookup_func "$arch"
55 create_arch_errno_table_func()
60 printf 'arch_syscalls__strerrno_t *arch_syscalls__strerrno_function(const char *arch)\n'
62 for arch in $archlist; do
63 printf '\tif (!strcmp(arch, "%s"))\n' $(arch_string "$arch")
64 printf '\t\treturn errno_to_name__%s;\n' $(arch_string "$arch")
66 printf '\treturn errno_to_name__%s;\n' $(arch_string "$default")
71 /* SPDX-License-Identifier: GPL-2.0 */
77 # Create list of architectures that have a specific errno.h.
79 for f in $toolsdir/arch/*/include/uapi/asm/errno.h; do
80 d=${f%/include/uapi/asm/errno.h}
82 test -f $toolsdir/arch/$arch/include/uapi/asm/errno.h && archlist="$archlist $arch"
85 for arch in generic $archlist; do
88 create_arch_errno_table_func "$archlist" "generic"