I will check again.
On Mon, Dec 9, 2019 at 8:30 PM Michael Rolnik <mrol...@gmail.com> wrote:
> Yes, I did compile other platforms.
>
> On Mon, Dec 9, 2019 at 8:24 PM Aleksandar Markovic <
> aleksandar.m.m...@gmail.com> wrote:
>
>>
>>
>> On Sunday, December 8, 2019, Michael Rolnik <mrol...@gmail.com> wrote:
>>
>>> A simple board setup that configures an AVR CPU to run a given firmware
>>> image.
>>> This is all that's useful to implement without peripheral emulation as
>>> AVR CPUs include a lot of on-board peripherals.
>>>
>>> NOTE: this is not a real board !!!!
>>> NOTE: it's used for CPU testing!!!!
>>>
>>> Signed-off-by: Michael Rolnik <mrol...@gmail.com>
>>> Reviewed-by: Aleksandar Markovic <amarko...@wavecomp.com>
>>> Nacked-by: Philippe Mathieu-Daudé <phi...@redhat.com>
>>> ---
>>> include/elf.h | 2 +
>>> include/hw/elf_ops.h | 6 +-
>>> include/hw/loader.h | 3 +-
>>> hw/avr/sample.c | 293 +++++++++++++++++++++++++++++++++++++++++++
>>> hw/core/loader.c | 13 +-
>>> hw/Kconfig | 1 +
>>> hw/avr/Kconfig | 6 +
>>> hw/avr/Makefile.objs | 1 +
>>> 8 files changed, 317 insertions(+), 8 deletions(-)
>>> create mode 100644 hw/avr/sample.c
>>> create mode 100644 hw/avr/Kconfig
>>> create mode 100644 hw/avr/Makefile.objs
>>>
>>> diff --git a/include/elf.h b/include/elf.h
>>> index 3501e0c8d0..53cdfa23b7 100644
>>> --- a/include/elf.h
>>> +++ b/include/elf.h
>>> @@ -202,6 +202,8 @@ typedef struct mips_elf_abiflags_v0 {
>>> #define EM_MOXIE 223 /* Moxie processor family */
>>> #define EM_MOXIE_OLD 0xFEED
>>>
>>> +#define EM_AVR 83 /* AVR 8-bit microcontroller */
>>> +
>>> /* This is the info that is needed to parse the dynamic section of the
>>> file */
>>> #define DT_NULL 0
>>> #define DT_NEEDED 1
>>> diff --git a/include/hw/elf_ops.h b/include/hw/elf_ops.h
>>> index e07d276df7..9f28c16490 100644
>>> --- a/include/hw/elf_ops.h
>>> +++ b/include/hw/elf_ops.h
>>> @@ -316,7 +316,8 @@ static int glue(load_elf, SZ)(const char *name, int
>>> fd,
>>> void *translate_opaque,
>>> int must_swab, uint64_t *pentry,
>>> uint64_t *lowaddr, uint64_t *highaddr,
>>> - int elf_machine, int clear_lsb, int
>>> data_swab,
>>> + int elf_machine, uint32_t *pflags,
>>> + int clear_lsb, int data_swab,
>>> AddressSpace *as, bool load_rom,
>>> symbol_fn_t sym_cb)
>>
>>
>>>
>> New parameter uint32_t *pflags should go before int elf_machine, so that
>> input and output parameters are grouped together. The mane should be more
>> precise, like pe_flags.
>>
>> But, it looks to me that you are breaking all other platforms with this
>> change. Did you try full qemu build after your series is applied?
>>
>>
>>>
>>
>> {
>>> @@ -594,6 +595,9 @@ static int glue(load_elf, SZ)(const char *name, int
>>> fd,
>>> }
>>> }
>>>
>>> + if (pflags) {
>>> + *pflags = (uint32_t)(elf_sword)ehdr.e_flags;
>>> + }
>>> if (lowaddr)
>>> *lowaddr = (uint64_t)(elf_sword)low;
>>> if (highaddr)
>>> diff --git a/include/hw/loader.h b/include/hw/loader.h
>>> index 48a96cd559..3dbdd1868d 100644
>>> --- a/include/hw/loader.h
>>> +++ b/include/hw/loader.h
>>> @@ -132,7 +132,8 @@ int load_elf_ram_sym(const char *filename,
>>> uint64_t (*translate_fn)(void *, uint64_t),
>>> void *translate_opaque, uint64_t *pentry,
>>> uint64_t *lowaddr, uint64_t *highaddr, int
>>> big_endian,
>>> - int elf_machine, int clear_lsb, int data_swab,
>>> + int elf_machine, uint32_t *pflags,
>>> + int clear_lsb, int data_swab,
>>> AddressSpace *as, bool load_rom, symbol_fn_t
>>> sym_cb);
>>>
>>> /** load_elf_ram:
>>> diff --git a/hw/avr/sample.c b/hw/avr/sample.c
>>> new file mode 100644
>>> index 0000000000..6574733b57
>>> --- /dev/null
>>> +++ b/hw/avr/sample.c
>>> @@ -0,0 +1,293 @@
>>> +/*
>>> + * QEMU AVR CPU
>>> + *
>>> + * Copyright (c) 2019 Michael Rolnik
>>> + *
>>> + * This library is free software; you can redistribute it and/or
>>> + * modify it under the terms of the GNU Lesser General Public
>>> + * License as published by the Free Software Foundation; either
>>> + * version 2.1 of the License, or (at your option) any later version.
>>> + *
>>> + * This library is distributed in the hope that it will be useful,
>>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
>>> + * Lesser General Public License for more details.
>>> + *
>>> + * You should have received a copy of the GNU Lesser General Public
>>> + * License along with this library; if not, see
>>> + * <http://www.gnu.org/licenses/lgpl-2.1.html>
>>> + */
>>> +
>>> +/*
>>> + * NOTE:
>>> + * This is not a real AVR board, this is an example!
>>> + * The CPU is an approximation of an ATmega2560, but is missing
>>> various
>>> + * built-in peripherals.
>>> + *
>>> + * This example board loads provided binary file into flash memory
>>> and
>>> + * executes it from 0x00000000 address in the code memory space.
>>> + *
>>> + * Currently used for AVR CPU validation
>>> + *
>>> + */
>>> +
>>> +#include "qemu/osdep.h"
>>> +#include "qapi/error.h"
>>> +#include "qemu-common.h"
>>> +#include "cpu.h"
>>> +#include "hw/hw.h"
>>> +#include "sysemu/sysemu.h"
>>> +#include "sysemu/qtest.h"
>>> +#include "ui/console.h"
>>> +#include "hw/boards.h"
>>> +#include "hw/loader.h"
>>> +#include "qemu/error-report.h"
>>> +#include "exec/address-spaces.h"
>>> +#include "include/hw/sysbus.h"
>>> +#include "include/hw/char/avr_usart.h"
>>> +#include "include/hw/timer/avr_timer16.h"
>>> +#include "include/hw/misc/avr_mask.h"
>>> +#include "elf.h"
>>> +#include "hw/misc/unimp.h"
>>> +
>>> +#define SIZE_FLASH 0x00040000
>>> +#define SIZE_SRAM 0x00002000
>>> +/*
>>> + * Size of additional "external" memory, as if the AVR were configured
>>> to use
>>> + * an external RAM chip.
>>> + * Note that the configuration registers that normally enable this
>>> feature are
>>> + * unimplemented.
>>> + */
>>> +#define SIZE_EXMEM 0x00000000
>>> +
>>> +/* Offsets of peripherals in emulated memory space (i.e. not host
>>> addresses) */
>>> +#define PRR0_BASE 0x64
>>> +#define PRR1_BASE 0x65
>>> +#define USART_BASE 0xc0
>>> +#define TIMER1_BASE 0x80
>>> +#define TIMER1_IMSK_BASE 0x6f
>>> +#define TIMER1_IFR_BASE 0x36
>>> +
>>> +/* Interrupt numbers used by peripherals */
>>> +#define USART_RXC_IRQ 24
>>> +#define USART_DRE_IRQ 25
>>> +#define USART_TXC_IRQ 26
>>> +
>>> +#define TIMER1_CAPT_IRQ 15
>>> +#define TIMER1_COMPA_IRQ 16
>>> +#define TIMER1_COMPB_IRQ 17
>>> +#define TIMER1_COMPC_IRQ 18
>>> +#define TIMER1_OVF_IRQ 19
>>> +
>>> +/* Power reduction */
>>> +#define PRR1_BIT_PRTIM5 0x05 /* Timer/Counter5 */
>>> +#define PRR1_BIT_PRTIM4 0x04 /* Timer/Counter4 */
>>> +#define PRR1_BIT_PRTIM3 0x03 /* Timer/Counter3 */
>>> +#define PRR1_BIT_PRUSART3 0x02 /* USART3 */
>>> +#define PRR1_BIT_PRUSART2 0x01 /* USART2 */
>>> +#define PRR1_BIT_PRUSART1 0x00 /* USART1 */
>>> +
>>> +#define PRR0_BIT_PRTWI 0x06 /* TWI */
>>> +#define PRR0_BIT_PRTIM2 0x05 /* Timer/Counter2 */
>>> +#define PRR0_BIT_PRTIM0 0x04 /* Timer/Counter0 */
>>> +#define PRR0_BIT_PRTIM1 0x03 /* Timer/Counter1 */
>>> +#define PRR0_BIT_PRSPI 0x02 /* Serial Peripheral Interface */
>>> +#define PRR0_BIT_PRUSART0 0x01 /* USART0 */
>>> +#define PRR0_BIT_PRADC 0x00 /* ADC */
>>> +
>>> +typedef struct {
>>> + MachineClass parent;
>>> +} SampleMachineClass;
>>> +
>>> +typedef struct {
>>> + MachineState parent;
>>> + MemoryRegion *ram;
>>> + MemoryRegion *flash;
>>> + AVRUsartState *usart0;
>>> + AVRTimer16State *timer1;
>>> + AVRMaskState *prr[2];
>>> +} SampleMachineState;
>>> +
>>> +#define TYPE_SAMPLE_MACHINE MACHINE_TYPE_NAME("sample")
>>> +
>>> +#define SAMPLE_MACHINE(obj) \
>>> + OBJECT_CHECK(SampleMachineState, obj, TYPE_SAMPLE_MACHINE)
>>> +#define SAMPLE_MACHINE_GET_CLASS(obj) \
>>> + OBJECT_GET_CLASS(SampleMachineClass, obj, TYPE_SAMPLE_MACHINE)
>>> +#define SAMPLE_MACHINE_CLASS(klass) \
>>> + OBJECT_CLASS_CHECK(SampleMachineClass, klass, TYPE_SAMPLE_MACHINE)
>>> +
>>> +static void sample_init(MachineState *machine)
>>> +{
>>> + SampleMachineState *sms = SAMPLE_MACHINE(machine);
>>> + MemoryRegion *system_memory = get_system_memory();
>>> + AVRCPU *cpu;
>>> + const char *firmware = NULL;
>>> + const char *filename = NULL;
>>> + const char *cpu_type = NULL;
>>> + uint32_t flags;
>>> + int bytes_loaded;
>>> + SysBusDevice *busdev;
>>> + DeviceState *cpudev;
>>> +
>>> + system_memory = get_system_memory();
>>> + sms->ram = g_new(MemoryRegion, 1);
>>> + sms->flash = g_new(MemoryRegion, 1);
>>> +
>>> + /* if ELF file is provided, determine CPU type reading ELF flags */
>>> + cpu_type = machine->cpu_type;
>>> + firmware = machine->firmware;
>>> + if (firmware != NULL) {
>>> + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware);
>>> + if (filename == NULL) {
>>> + error_report("Unable to find %s", firmware);
>>> + exit(1);
>>> + }
>>> +
>>> + bytes_loaded = load_elf_ram_sym(filename, NULL, NULL, NULL,
>>> NULL, NULL,
>>> + NULL, 0, EM_AVR, &flags, 0, 0, NULL, 0, 0);
>>> + if (bytes_loaded > 0) {
>>> + cpu_type = avr_flags_to_cpu_type(flags, cpu_type);
>>> + }
>>> + }
>>> +
>>> + cpu = AVR_CPU(cpu_create(cpu_type));
>>> + cpudev = DEVICE(cpu);
>>> +
>>> + memory_region_init_rom(sms->flash, NULL, "avr.flash", SIZE_FLASH,
>>> + &error_fatal);
>>> + memory_region_add_subregion(system_memory, OFFSET_CODE, sms->flash);
>>> +
>>> + /* following are atmel2560 device */
>>> + create_unimplemented_device("usart 3", OFFSET_DATA + 0x0130,
>>> 0x0007);
>>> + create_unimplemented_device("timer-counter-16bit 5",
>>> + OFFSET_DATA + 0x0120, 0x000e);
>>> + create_unimplemented_device("gpio L", OFFSET_DATA + 0x0109, 0x0003);
>>> + create_unimplemented_device("gpio K", OFFSET_DATA + 0x0106, 0x0003);
>>> + create_unimplemented_device("gpio J", OFFSET_DATA + 0x0103, 0x0003);
>>> + create_unimplemented_device("gpio H", OFFSET_DATA + 0x0100, 0x0003);
>>> + create_unimplemented_device("usart 2", OFFSET_DATA + 0x00d0,
>>> 0x0007);
>>> + create_unimplemented_device("usart 1", OFFSET_DATA + 0x00c8,
>>> 0x0007);
>>> + create_unimplemented_device("usart 0", OFFSET_DATA + 0x00c0,
>>> 0x0007);
>>> + create_unimplemented_device("twi", OFFSET_DATA + 0x00b8, 0x0006);
>>> + create_unimplemented_device("timer-counter-async-8bit 2",
>>> + OFFSET_DATA + 0x00b0, 0x0007);
>>> + create_unimplemented_device("timer-counter-16bit 4",
>>> + OFFSET_DATA + 0x00a0, 0x000e);
>>> + create_unimplemented_device("timer-counter-16bit 3",
>>> + OFFSET_DATA + 0x0090, 0x000e);
>>> + create_unimplemented_device("timer-counter-16bit 1",
>>> + OFFSET_DATA + 0x0080, 0x000e);
>>> + create_unimplemented_device("ac / adc",
>>> + OFFSET_DATA + 0x0078, 0x0008);
>>> + create_unimplemented_device("ext-mem-iface",
>>> + OFFSET_DATA + 0x0074, 0x0002);
>>> + create_unimplemented_device("int-controller",
>>> + OFFSET_DATA + 0x0068, 0x000c);
>>> + create_unimplemented_device("sys",
>>> + OFFSET_DATA + 0x0060, 0x0007);
>>> + create_unimplemented_device("spi",
>>> + OFFSET_DATA + 0x004c, 0x0003);
>>> + create_unimplemented_device("ext-mem-iface",
>>> + OFFSET_DATA + 0x004a, 0x0002);
>>> + create_unimplemented_device("timer-counter-pwm-8bit 0",
>>> + OFFSET_DATA + 0x0043, 0x0006);
>>> + create_unimplemented_device("ext-mem-iface",
>>> + OFFSET_DATA + 0x003e, 0x0005);
>>> + create_unimplemented_device("int-controller",
>>> + OFFSET_DATA + 0x0035, 0x0009);
>>> + create_unimplemented_device("gpio G", OFFSET_DATA + 0x0032, 0x0003);
>>> + create_unimplemented_device("gpio F", OFFSET_DATA + 0x002f, 0x0003);
>>> + create_unimplemented_device("gpio E", OFFSET_DATA + 0x002c, 0x0003);
>>> + create_unimplemented_device("gpio D", OFFSET_DATA + 0x0029, 0x0003);
>>> + create_unimplemented_device("gpio C", OFFSET_DATA + 0x0026, 0x0003);
>>> + create_unimplemented_device("gpio B", OFFSET_DATA + 0x0023, 0x0003);
>>> + create_unimplemented_device("gpio A", OFFSET_DATA + 0x0020, 0x0003);
>>> +
>>> + memory_region_allocate_system_memory(
>>> + sms->ram, NULL, "avr.ram", SIZE_SRAM + SIZE_EXMEM);
>>> + memory_region_add_subregion(system_memory, OFFSET_DATA + 0x200,
>>> sms->ram);
>>> +
>>> + /* Power Reduction built-in peripheral */
>>> + sms->prr[0] = AVR_MASK(sysbus_create_simple(TYPE_AVR_MASK,
>>> + OFFSET_DATA + PRR0_BASE, NULL));
>>> + sms->prr[1] = AVR_MASK(sysbus_create_simple(TYPE_AVR_MASK,
>>> + OFFSET_DATA + PRR1_BASE, NULL));
>>> +
>>> + /* USART 0 built-in peripheral */
>>> + sms->usart0 = AVR_USART(object_new(TYPE_AVR_USART));
>>> + busdev = SYS_BUS_DEVICE(sms->usart0);
>>> + qdev_prop_set_chr(DEVICE(sms->usart0), "chardev", serial_hd(0));
>>> + object_property_set_bool(OBJECT(sms->usart0), true, "realized",
>>> + &error_fatal);
>>> + sysbus_mmio_map(busdev, 0, OFFSET_DATA + USART_BASE);
>>> + /*
>>> + * These IRQ numbers don't match the datasheet because we're
>>> counting from
>>> + * zero and not including reset.
>>> + */
>>> + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(cpudev,
>>> USART_RXC_IRQ));
>>> + sysbus_connect_irq(busdev, 1, qdev_get_gpio_in(cpudev,
>>> USART_DRE_IRQ));
>>> + sysbus_connect_irq(busdev, 2, qdev_get_gpio_in(cpudev,
>>> USART_TXC_IRQ));
>>> + sysbus_connect_irq(SYS_BUS_DEVICE(sms->prr[1]), PRR1_BIT_PRUSART1,
>>> + qdev_get_gpio_in(DEVICE(sms->usart0), 0));
>>> +
>>> + /* Timer 1 built-in periphal */
>>> + sms->timer1 = AVR_TIMER16(object_new(TYPE_AVR_TIMER16));
>>> + object_property_set_bool(OBJECT(sms->timer1), true, "realized",
>>> + &error_fatal);
>>> + busdev = SYS_BUS_DEVICE(sms->timer1);
>>> + sysbus_mmio_map(busdev, 0, OFFSET_DATA + TIMER1_BASE);
>>> + sysbus_mmio_map(busdev, 1, OFFSET_DATA + TIMER1_IMSK_BASE);
>>> + sysbus_mmio_map(busdev, 2, OFFSET_DATA + TIMER1_IFR_BASE);
>>> + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(cpudev,
>>> TIMER1_CAPT_IRQ));
>>> + sysbus_connect_irq(busdev, 1, qdev_get_gpio_in(cpudev,
>>> TIMER1_COMPA_IRQ));
>>> + sysbus_connect_irq(busdev, 2, qdev_get_gpio_in(cpudev,
>>> TIMER1_COMPB_IRQ));
>>> + sysbus_connect_irq(busdev, 3, qdev_get_gpio_in(cpudev,
>>> TIMER1_COMPC_IRQ));
>>> + sysbus_connect_irq(busdev, 4, qdev_get_gpio_in(cpudev,
>>> TIMER1_OVF_IRQ));
>>> + sysbus_connect_irq(SYS_BUS_DEVICE(sms->prr[0]), PRR0_BIT_PRTIM1,
>>> + qdev_get_gpio_in(DEVICE(sms->timer1), 0));
>>> +
>>> + /* Load firmware (contents of flash) trying to auto-detect format */
>>> + if (filename != NULL) {
>>> + bytes_loaded = load_elf(
>>> + filename, NULL, NULL, NULL, NULL, NULL, NULL, 0, EM_NONE,
>>> 0, 0);
>>> + if (bytes_loaded < 0) {
>>> + bytes_loaded = load_image_targphys(
>>> + filename, OFFSET_CODE, SIZE_FLASH);
>>> + }
>>> + if (bytes_loaded < 0) {
>>> + error_report(
>>> + "Unable to load firmware image %s as ELF or raw binary",
>>> + firmware);
>>> + exit(1);
>>> + }
>>> + }
>>> +}
>>> +
>>> +static void sample_class_init(ObjectClass *oc, void *data)
>>> +{
>>> + MachineClass *mc = MACHINE_CLASS(oc);
>>> +
>>> + mc->desc = "AVR sample/example board (ATmega2560)";
>>> + mc->init = sample_init;
>>> + mc->default_cpus = 1;
>>> + mc->min_cpus = mc->default_cpus;
>>> + mc->max_cpus = mc->default_cpus;
>>> + mc->default_cpu_type = "avr6-avr-cpu"; /* ATmega2560. */
>>> + mc->is_default = 1;
>>> +}
>>> +
>>> +static const TypeInfo sample_info = {
>>> + .name = TYPE_SAMPLE_MACHINE,
>>> + .parent = TYPE_MACHINE,
>>> + .instance_size = sizeof(SampleMachineState),
>>> + .class_size = sizeof(SampleMachineClass),
>>> + .class_init = sample_class_init,
>>> +};
>>> +
>>> +static void sample_machine_init(void)
>>> +{
>>> + type_register_static(&sample_info);
>>> +}
>>> +
>>> +type_init(sample_machine_init);
>>> diff --git a/hw/core/loader.c b/hw/core/loader.c
>>> index 5099f27dc8..e6511466ba 100644
>>> --- a/hw/core/loader.c
>>> +++ b/hw/core/loader.c
>>> @@ -439,7 +439,7 @@ int load_elf_ram(const char *filename,
>>> return load_elf_ram_sym(filename, elf_note_fn,
>>> translate_fn, translate_opaque,
>>> pentry, lowaddr, highaddr, big_endian,
>>> - elf_machine, clear_lsb, data_swab, as,
>>> + elf_machine, NULL, clear_lsb, data_swab, as,
>>> load_rom, NULL);
>>> }
>>>
>>> @@ -449,7 +449,8 @@ int load_elf_ram_sym(const char *filename,
>>> uint64_t (*translate_fn)(void *, uint64_t),
>>> void *translate_opaque, uint64_t *pentry,
>>> uint64_t *lowaddr, uint64_t *highaddr, int
>>> big_endian,
>>> - int elf_machine, int clear_lsb, int data_swab,
>>> + int elf_machine, uint32_t *pflags,
>>> + int clear_lsb, int data_swab,
>>> AddressSpace *as, bool load_rom, symbol_fn_t
>>> sym_cb)
>>> {
>>> int fd, data_order, target_data_order, must_swab, ret =
>>> ELF_LOAD_FAILED;
>>> @@ -490,13 +491,13 @@ int load_elf_ram_sym(const char *filename,
>>> if (e_ident[EI_CLASS] == ELFCLASS64) {
>>> ret = load_elf64(filename, fd, elf_note_fn,
>>> translate_fn, translate_opaque, must_swab,
>>> - pentry, lowaddr, highaddr, elf_machine,
>>> clear_lsb,
>>> - data_swab, as, load_rom, sym_cb);
>>> + pentry, lowaddr, highaddr, elf_machine, pflags,
>>> + clear_lsb, data_swab, as, load_rom, sym_cb);
>>> } else {
>>> ret = load_elf32(filename, fd, elf_note_fn,
>>> translate_fn, translate_opaque, must_swab,
>>> - pentry, lowaddr, highaddr, elf_machine,
>>> clear_lsb,
>>> - data_swab, as, load_rom, sym_cb);
>>> + pentry, lowaddr, highaddr, elf_machine, pflags,
>>> + clear_lsb, data_swab, as, load_rom, sym_cb);
>>> }
>>>
>>> fail:
>>> diff --git a/hw/Kconfig b/hw/Kconfig
>>> index b9685b3944..07b8abb342 100644
>>> --- a/hw/Kconfig
>>> +++ b/hw/Kconfig
>>> @@ -44,6 +44,7 @@ source watchdog/Kconfig
>>> # arch Kconfig
>>> source arm/Kconfig
>>> source alpha/Kconfig
>>> +source avr/Kconfig
>>> source cris/Kconfig
>>> source hppa/Kconfig
>>> source i386/Kconfig
>>> diff --git a/hw/avr/Kconfig b/hw/avr/Kconfig
>>> new file mode 100644
>>> index 0000000000..92aa1e6afb
>>> --- /dev/null
>>> +++ b/hw/avr/Kconfig
>>> @@ -0,0 +1,6 @@
>>> +config AVR_SAMPLE
>>> + bool
>>> + select AVR_TIMER16
>>> + select AVR_USART
>>> + select AVR_MASK
>>> + select UNIMP
>>> diff --git a/hw/avr/Makefile.objs b/hw/avr/Makefile.objs
>>> new file mode 100644
>>> index 0000000000..626b7064b3
>>> --- /dev/null
>>> +++ b/hw/avr/Makefile.objs
>>> @@ -0,0 +1 @@
>>> +obj-y += sample.o
>>> --
>>> 2.17.2 (Apple Git-113)
>>>
>>>
>
> --
> Best Regards,
> Michael Rolnik
>
--
Best Regards,
Michael Rolnik
