xref: /openbmc/qemu/target/xtensa/import_core.sh (revision b14df228) 
1#! /bin/bash -e
2
3OVERLAY="$1"
4NAME="$2"
5FREQ=40000
6BASE=$(dirname "$0")
7TARGET="$BASE"/core-$NAME
8
9[ $# -ge 2 -a -f "$OVERLAY" ] || { cat <<EOF
10Usage: $0 overlay-archive-to-import core-name [frequency-in-KHz]
11    overlay-archive-to-import:  file name of xtensa-config-overlay.tar.gz
12                                to import configuration from.
13    core-name:                  QEMU name of the imported core. Must be valid
14                                C identifier.
15    frequency-in-KHz:           core frequency (40MHz if not specified).
16EOF
17exit
18}
19
20[ $# -ge 3 ] && FREQ="$3"
21mkdir -p "$TARGET"
22tar -xf "$OVERLAY" -C "$TARGET" --strip-components=2 \
23    xtensa/config/core-isa.h \
24    xtensa/config/core-matmap.h
25tar -xf "$OVERLAY" -O gdb/xtensa-config.c | \
26    sed -n '1,/*\//p;/XTREG/,/XTREG_END/p' > "$TARGET"/gdb-config.c.inc
27#
28# Fix up known issues in the xtensa-modules.c
29#
30tar -xf "$OVERLAY" -O binutils/xtensa-modules.c | \
31    sed -e 's/^\(xtensa_opcode_encode_fn.*\[\] =\)/static \1/' \
32        -e '/^int num_bypass_groups()/,/}/d' \
33        -e '/^int num_bypass_group_chunks()/,/}/d' \
34        -e '/^uint32 \*bypass_entry(int i)/,/}/d' \
35        -e '/^#include "ansidecl.h"/d' \
36        -e '/^Slot_[a-zA-Z0-9_]\+_decode (const xtensa_insnbuf insn)/,/^}/s/^  return 0;$/  return XTENSA_UNDEFINED;/' \
37        -e 's/#include <xtensa-isa.h>/#include "xtensa-isa.h"/' \
38        -e 's/^\(xtensa_isa_internal xtensa_modules\)/static \1/' \
39    > "$TARGET"/xtensa-modules.c.inc
40
41cat <<EOF > "${TARGET}.c"
42#include "qemu/osdep.h"
43#include "cpu.h"
44#include "exec/gdbstub.h"
45#include "qemu/host-utils.h"
46
47#include "core-$NAME/core-isa.h"
48#include "core-$NAME/core-matmap.h"
49#include "overlay_tool.h"
50
51#define xtensa_modules xtensa_modules_$NAME
52#include "core-$NAME/xtensa-modules.c.inc"
53
54static XtensaConfig $NAME __attribute__((unused)) = {
55    .name = "$NAME",
56    .gdb_regmap = {
57        .reg = {
58#include "core-$NAME/gdb-config.c.inc"
59        }
60    },
61    .isa_internal = &xtensa_modules,
62    .clock_freq_khz = $FREQ,
63    DEFAULT_SECTIONS
64};
65
66REGISTER_CORE($NAME)
67EOF
68
69grep -qxf core-${NAME}.c "$BASE"/cores.list || \
70    echo core-${NAME}.c >> "$BASE"/cores.list
71