target-xtensa/import_core.sh

   1 #! /bin/bash -e
   2
   3 OVERLAY="$1"
   4 NAME="$2"
   5 FREQ=40000
   6 BASE=$(dirname "$0")
   7 TARGET="$BASE"/core-$NAME
   8
   9 [ $# -ge 2 -a -f "$OVERLAY" ] || { cat <<EOF
  10 Usage: $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).
  16 EOF
  17 exit
  18 }
  19
  20 [ $# -ge 3 ] && FREQ="$3"
  21 mkdir -p "$TARGET"
  22 tar -xf "$OVERLAY" -C "$TARGET" --strip-components=1 \
  23     --xform='s/core/core-isa/' config/core.h
  24 tar -xf "$OVERLAY" -O gdb/xtensa-config.c | \
  25     sed -n '1,/*\//p;/pc/,/a15/p' > "$TARGET"/gdb-config.c
  26 NUM_REGS=$(grep XTREG "$TARGET"/gdb-config.c | wc -l)
  27
  28 cat <<EOF > "${TARGET}.c"
  29 #include "cpu.h"
  30 #include "exec/exec-all.h"
  31 #include "exec/gdbstub.h"
  32 #include "qemu/host-utils.h"
  33
  34 #include "core-$NAME/core-isa.h"
  35 #include "overlay_tool.h"
  36
  37 static const XtensaConfig $NAME __attribute__((unused)) = {
  38     .name = "$NAME",
  39     .gdb_regmap = {
  40         .num_regs = $NUM_REGS,
  41         .reg = {
  42 #include "core-$NAME/gdb-config.c"
  43         }
  44     },
  45     .clock_freq_khz = $FREQ,
  46     DEFAULT_SECTIONS
  47 };
  48
  49 REGISTER_CORE($NAME)
  50 EOF
  51
  52 grep -q core-${NAME}.o "$BASE"/Makefile.objs || \
  53     echo "obj-y += core-${NAME}.o" >> "$BASE"/Makefile.objs