[Løst] gcc: error: unrecognized command line option '-marm'

reminett · 13. april 2013

gcc: error: unrecognized command line option '-marm'

Hvorfor får jeg denne feilen når jeg sh ./build?

Her er build:

#!/bin/bash
bld="TARGET"
if [ $# -eq 1 ] && [ "$1" == "host" ]; then
bld="HOST"
fi
if [ $bld == "HOST" ]; then
gcc -O2 -Wall `pkg-config --cflags --libs libv4l2` capture.c -o capture
else
gcc -O2 -Wall -marm -mfloat-abi=softfp `pkg-config --cflags --libs libv4l2` capture.c -o capture
fi

Jeg prøver med andre ord å kompilere capture.c, som ser slik ut:

/*
*  V4L2 video capture example
*
*  This program can be used and distributed without restrictions.
*
*	  This program is provided with the V4L2 API
* see http://linuxtv.org/docs.php for more information
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <getopt.h>			 /* getopt_long() */
#include <fcntl.h>			  /* low-level i/o */
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/videodev2.h>
#define CLEAR(x) memset(&(x), 0, sizeof(x))
#ifndef V4L2_PIX_FMT_H264
#define V4L2_PIX_FMT_H264	 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
#endif
enum io_method {
IO_METHOD_READ,
IO_METHOD_MMAP,
IO_METHOD_USERPTR,
};
struct buffer {
void   *start;
size_t length;
};
static char			*dev_name;
static enum io_method io = IO_METHOD_MMAP;
static int fd = -1;
struct buffer		  *buffers;
static unsigned int n_buffers;
static int out_buf;
static int force_format;
static int frame_count = 200;
static int frame_number = 0;
static void errno_exit(const char *s)
{
fprintf(stderr, "%s error %d, %s\n", s, errno, strerror(errno));
exit(EXIT_FAILURE);
}
static int xioctl(int fh, int request, void *arg)
{
int r;
do {
 r = ioctl(fh, request, arg);
} while (-1 == r && EINTR == errno);
return r;
}
static void process_image(const void *p, int size)
{
frame_number++;
char filename[15];
//sprintf(filename, "frame-%d.raw", frame_number);
//FILE *fp=fopen(filename,"wb");
if (out_buf==0)
{
	/* write to file */
	FILE *fp=fopen("video.raw","ab");
	fwrite(p, size, 1, fp);
	fflush(fp);
	fclose(fp);
}
else
{
	/* write to stdout */
	write(1, p, size);
}
}
static int read_frame(void)
{
struct v4l2_buffer buf;
unsigned int i;
switch (io) {
case IO_METHOD_READ:
 if (-1 == read(fd, buffers[0].start, buffers[0].length)) {
  switch (errno) {
  case EAGAIN:
return 0;
  case EIO:
  /* Could ignore EIO, see spec. */
  /* fall through */
  default:
errno_exit("read");
  }
 }
 process_image(buffers[0].start, buffers[0].length);
 break;
case IO_METHOD_MMAP:
 CLEAR(buf);
 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 buf.memory = V4L2_MEMORY_MMAP;
 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
  switch (errno) {
  case EAGAIN:
return 0;
  case EIO:
  /* Could ignore EIO, see spec. */
  /* fall through */
  default:
errno_exit("VIDIOC_DQBUF");
  }
 }
 assert(buf.index < n_buffers);
 process_image(buffers[buf.index].start, buf.bytesused);
 if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
  errno_exit("VIDIOC_QBUF");
 break;
case IO_METHOD_USERPTR:
 CLEAR(buf);
 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 buf.memory = V4L2_MEMORY_USERPTR;
 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
  switch (errno) {
  case EAGAIN:
return 0;
  case EIO:
  /* Could ignore EIO, see spec. */
  /* fall through */
  default:
errno_exit("VIDIOC_DQBUF");
  }
 }
 for (i = 0; i < n_buffers; ++i)
  if (buf.m.userptr == (unsigned long)buffers[i].start
   && buf.length == buffers[i].length)
break;
 assert(i < n_buffers);
 process_image((void *)buf.m.userptr, buf.bytesused);
 if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
  errno_exit("VIDIOC_QBUF");
 break;
}
return 1;
}
static void mainloop(void)
{
unsigned int count;
count = frame_count;
while (count-- > 0) {
 for (;; ) {
  fd_set fds;
  struct timeval tv;
  int r;
  FD_ZERO(&fds);
  FD_SET(fd, &fds);
  /* Timeout. */
  tv.tv_sec = 2;
  tv.tv_usec = 0;
  r = select(fd + 1, &fds, NULL, NULL, &tv);
  if (-1 == r) {
if (EINTR == errno)
 continue;
errno_exit("select");
  }
  if (0 == r) {
fprintf(stderr, "select timeout\n");
exit(EXIT_FAILURE);
  }
  if (read_frame())
break;
  /* EAGAIN - continue select loop. */
 }
}
}
static void stop_capturing(void)
{
enum v4l2_buf_type type;
switch (io) {
case IO_METHOD_READ:
 /* Nothing to do. */
 break;
case IO_METHOD_MMAP:
case IO_METHOD_USERPTR:
 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 if (-1 == xioctl(fd, VIDIOC_STREAMOFF, &type))
  errno_exit("VIDIOC_STREAMOFF");
 break;
}
}
static void start_capturing(void)
{
unsigned int i;
enum v4l2_buf_type type;
switch (io) {
case IO_METHOD_READ:
 /* Nothing to do. */
 break;
case IO_METHOD_MMAP:
 for (i = 0; i < n_buffers; ++i) {
  struct v4l2_buffer buf;
  CLEAR(buf);
  buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
  buf.memory = V4L2_MEMORY_MMAP;
  buf.index = i;
  if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
errno_exit("VIDIOC_QBUF");
 }
 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 if (-1 == xioctl(fd, VIDIOC_STREAMON, &type))
  errno_exit("VIDIOC_STREAMON");
 break;
case IO_METHOD_USERPTR:
 for (i = 0; i < n_buffers; ++i) {
  struct v4l2_buffer buf;
  CLEAR(buf);
  buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
  buf.memory = V4L2_MEMORY_USERPTR;
  buf.index = i;
  buf.m.userptr = (unsigned long)buffers[i].start;
  buf.length = buffers[i].length;
  if (-1 == xioctl(fd, VIDIOC_QBUF, &buf))
errno_exit("VIDIOC_QBUF");
 }
 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 if (-1 == xioctl(fd, VIDIOC_STREAMON, &type))
  errno_exit("VIDIOC_STREAMON");
 break;
}
}
static void uninit_device(void)
{
unsigned int i;
switch (io) {
case IO_METHOD_READ:
 free(buffers[0].start);
 break;
case IO_METHOD_MMAP:
 for (i = 0; i < n_buffers; ++i)
  if (-1 == munmap(buffers[i].start, buffers[i].length))
errno_exit("munmap");
 break;
case IO_METHOD_USERPTR:
 for (i = 0; i < n_buffers; ++i)
  free(buffers[i].start);
 break;
}
free(buffers);
}
static void init_read(unsigned int buffer_size)
{
buffers = calloc(1, sizeof(*buffers));
if (!buffers) {
 fprintf(stderr, "Out of memory\n");
 exit(EXIT_FAILURE);
}
buffers[0].length = buffer_size;
buffers[0].start = malloc(buffer_size);
if (!buffers[0].start) {
 fprintf(stderr, "Out of memory\n");
 exit(EXIT_FAILURE);
}
}
static void init_mmap(void)
{
struct v4l2_requestbuffers req;
CLEAR(req);
req.count = 4;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) {
 if (EINVAL == errno) {
  fprintf(stderr, "%s does not support "
	   "memory mapping\n", dev_name);
  exit(EXIT_FAILURE);
 } else {
  errno_exit("VIDIOC_REQBUFS");
 }
}
if (req.count < 2) {
 fprintf(stderr, "Insufficient buffer memory on %s\n",
	  dev_name);
 exit(EXIT_FAILURE);
}
buffers = calloc(req.count, sizeof(*buffers));
if (!buffers) {
 fprintf(stderr, "Out of memory\n");
 exit(EXIT_FAILURE);
}
for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
 struct v4l2_buffer buf;
 CLEAR(buf);
 buf.type		= V4L2_BUF_TYPE_VIDEO_CAPTURE;
 buf.memory	  = V4L2_MEMORY_MMAP;
 buf.index	   = n_buffers;
 if (-1 == xioctl(fd, VIDIOC_QUERYBUF, &buf))
  errno_exit("VIDIOC_QUERYBUF");
 buffers[n_buffers].length = buf.length;
 buffers[n_buffers].start =
	  mmap(NULL /* start anywhere */,
		   buf.length,
		   PROT_READ | PROT_WRITE /* required */,
		   MAP_SHARED /* recommended */,
		   fd, buf.m.offset);
 if (MAP_FAILED == buffers[n_buffers].start)
  errno_exit("mmap");
}
}
static void init_userp(unsigned int buffer_size)
{
struct v4l2_requestbuffers req;
CLEAR(req);
req.count  = 4;
req.type   = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_USERPTR;
if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) {
 if (EINVAL == errno) {
  fprintf(stderr, "%s does not support "
	   "user pointer i/o\n", dev_name);
  exit(EXIT_FAILURE);
 } else {
  errno_exit("VIDIOC_REQBUFS");
 }
}
buffers = calloc(4, sizeof(*buffers));
if (!buffers) {
 fprintf(stderr, "Out of memory\n");
 exit(EXIT_FAILURE);
}
for (n_buffers = 0; n_buffers < 4; ++n_buffers) {
 buffers[n_buffers].length = buffer_size;
 buffers[n_buffers].start = malloc(buffer_size);
 if (!buffers[n_buffers].start) {
  fprintf(stderr, "Out of memory\n");
  exit(EXIT_FAILURE);
 }
}
}
static void init_device(void)
{
struct v4l2_capability cap;
struct v4l2_cropcap cropcap;
struct v4l2_crop crop;
struct v4l2_format fmt;
unsigned int min;
if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &cap)) {
 if (EINVAL == errno) {
  fprintf(stderr, "%s is no V4L2 device\n",
	   dev_name);
  exit(EXIT_FAILURE);
 } else {
  errno_exit("VIDIOC_QUERYCAP");
 }
}
if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
 fprintf(stderr, "%s is no video capture device\n",
	  dev_name);
 exit(EXIT_FAILURE);
}
switch (io) {
case IO_METHOD_READ:
 if (!(cap.capabilities & V4L2_CAP_READWRITE)) {
  fprintf(stderr, "%s does not support read i/o\n",
	   dev_name);
  exit(EXIT_FAILURE);
 }
 break;
case IO_METHOD_MMAP:
case IO_METHOD_USERPTR:
 if (!(cap.capabilities & V4L2_CAP_STREAMING)) {
  fprintf(stderr, "%s does not support streaming i/o\n",
	   dev_name);
  exit(EXIT_FAILURE);
 }
 break;
}

/* Select video input, video standard and tune here. */

CLEAR(cropcap);
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (0 == xioctl(fd, VIDIOC_CROPCAP, &cropcap)) {
 crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 crop.c = cropcap.defrect; /* reset to default */
 if (-1 == xioctl(fd, VIDIOC_S_CROP, &crop)) {
  switch (errno) {
  case EINVAL:
/* Cropping not supported. */
break;
  default:
/* Errors ignored. */
break;
  }
 }
} else {
 /* Errors ignored. */
}

CLEAR(fmt);
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (force_format) {
 fprintf(stderr, "Set H264\r\n");
 fmt.fmt.pix.width	   = 640; //replace
 fmt.fmt.pix.height	  = 480; //replace
 fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_H264; //replace
 fmt.fmt.pix.field	   = V4L2_FIELD_ANY;
 if (-1 == xioctl(fd, VIDIOC_S_FMT, &fmt))
  errno_exit("VIDIOC_S_FMT");
 /* Note VIDIOC_S_FMT may change width and height. */
} else {
 /* Preserve original settings as set by v4l2-ctl for example */
 if (-1 == xioctl(fd, VIDIOC_G_FMT, &fmt))
  errno_exit("VIDIOC_G_FMT");
}
/* Buggy driver paranoia. */
min = fmt.fmt.pix.width * 2;
if (fmt.fmt.pix.bytesperline < min)
 fmt.fmt.pix.bytesperline = min;
min = fmt.fmt.pix.bytesperline * fmt.fmt.pix.height;
if (fmt.fmt.pix.sizeimage < min)
 fmt.fmt.pix.sizeimage = min;
switch (io) {
case IO_METHOD_READ:
 init_read(fmt.fmt.pix.sizeimage);
 break;
case IO_METHOD_MMAP:
 init_mmap();
 break;
case IO_METHOD_USERPTR:
 init_userp(fmt.fmt.pix.sizeimage);
 break;
}
}
static void close_device(void)
{
if (-1 == close(fd))
 errno_exit("close");
fd = -1;
}
static void open_device(void)
{
struct stat st;
if (-1 == stat(dev_name, &st)) {
 fprintf(stderr, "Cannot identify '%s': %d, %s\n",
	  dev_name, errno, strerror(errno));
 exit(EXIT_FAILURE);
}
if (!S_ISCHR(st.st_mode)) {
 fprintf(stderr, "%s is no device\n", dev_name);
 exit(EXIT_FAILURE);
}
fd = open(dev_name, O_RDWR /* required */ | O_NONBLOCK, 0);
if (-1 == fd) {
 fprintf(stderr, "Cannot open '%s': %d, %s\n",
	  dev_name, errno, strerror(errno));
 exit(EXIT_FAILURE);
}
}
static void usage(FILE *fp, int argc, char **argv)
{
fprintf(fp,
	 "Usage: %s [options]\n\n"
	 "Version 1.3\n"
	 "Options:\n"
	 "-d | --device name   Video device name [%s]\n"
	 "-h | --help		  Print this message\n"
	 "-m | --mmap		  Use memory mapped buffers [default]\n"
	 "-r | --read		  Use read() calls\n"
	 "-u | --userp		 Use application allocated buffers\n"
	 "-o | --output		Outputs stream to stdout\n"
	 "-f | --format		Force format to 640x480 H264\n"
	 "-c | --count		 Number of frames to grab [%i]\n"
	 "",
	 argv[0], dev_name, frame_count);
}
static const char short_options[] = "d:hmruofc:";
static const struct option
	long_options[] = {
{ "device", required_argument, NULL, 'd' },
{ "help",   no_argument,	   NULL, 'h' },
{ "mmap",   no_argument,	   NULL, 'm' },
{ "read",   no_argument,	   NULL, 'r' },
{ "userp",  no_argument,	   NULL, 'u' },
{ "output", no_argument,	   NULL, 'o' },
{ "format", no_argument,	   NULL, 'f' },
{ "count",  required_argument, NULL, 'c' },
{ 0, 0, 0, 0 }
};
int main(int argc, char **argv)
{
dev_name = "/dev/video0";
for (;; ) {
 int idx;
 int c;
 c = getopt_long(argc, argv,
			  short_options, long_options, &idx);
 if (-1 == c)
  break;
 switch (c) {
 case 0: /* getopt_long() flag */
  break;
 case 'd':
  dev_name = optarg;
  break;
 case 'h':
  usage(stdout, argc, argv);
  exit(EXIT_SUCCESS);
 case 'm':
  io = IO_METHOD_MMAP;
  break;
 case 'r':
  io = IO_METHOD_READ;
  break;
 case 'u':
  io = IO_METHOD_USERPTR;
  break;
 case 'o':
  out_buf++;
  break;
 case 'f':
  force_format++;
  break;
 case 'c':
  errno = 0;
  frame_count = strtol(optarg, NULL, 0);
  if (errno)
errno_exit(optarg);
  break;
 default:
  usage(stderr, argc, argv);
  exit(EXIT_FAILURE);
 }
}
open_device();
init_device();
start_capturing();
mainloop();
stop_capturing();
uninit_device();
close_device();
fprintf(stderr, "\n");
return 0;
}

Endret 13. april 2013 av reminett

Lycantrophe · 13. april 2013

Har du installert gcc arm libs? OS/gcc bruker du?

reminett · 13. april 2013

Har du installert gcc arm libs? OS/gcc bruker du?

Tusen takk for at du svarte

Jeg fant nettopp ut av det, build måtte kjøres med prefiks "host" dersom man ikke har ARM.

Lycantrophe · 14. april 2013

Antok at det var noe slikt. Tips: om du kompilerer for en annen arkitektur enn den du sitter på og støter på problemer lønner deg seg å si hva du skal kompilere fra og til.

reminett · 14. april 2013

Antok at det var noe slikt. Tips: om du kompilerer for en annen arkitektur enn den du sitter på og støter på problemer lønner deg seg å si hva du skal kompilere fra og til.

Det er notert Takk, igjen

Logg inn

[Løst] gcc: error: unrecognized command line option '-marm'

Anbefalte innlegg

reminett

Lenke til kommentar

Videoannonse

Lycantrophe

Lenke til kommentar

reminett

Lenke til kommentar

Lycantrophe

Lenke til kommentar

reminett

Lenke til kommentar

Opprett en konto eller logg inn for å kommentere

Opprett konto

Logg inn

Hvem er aktive 0 medlemmer