[Xen-devel] Re: [PATCH] c/s 17028: build issue

["Christoph Egger" <Christoph.Egger@xxxxxxx>]

This patch makes ioemu build again on NetBSD.
Thanks Samuel.

Christoph

On Wednesday 13 February 2008 18:15:14 Samuel Thibault wrote:
> Ok, then this should fix it, backported from upstream.
>
>
> ioemu: backport upstream's qemu_memalign.
>
> Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
>
> diff -r 889b6b7d306f tools/ioemu/block-vbd.c
> --- a/tools/ioemu/block-vbd.c Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/block-vbd.c Wed Feb 13 17:12:59 2008 +0000
> @@ -223,7 +223,7 @@ static int vbd_read(BlockDriverState *bs
>       * copying */
>      if (!((uintptr_t)buf & (SECTOR_SIZE-1)))
>       return vbd_aligned_io(bs, sector_num, buf, nb_sectors, 0);
> -    iobuf = memalign(PAGE_SIZE, nb_sectors * SECTOR_SIZE);
> +    iobuf = qemu_memalign(PAGE_SIZE, nb_sectors * SECTOR_SIZE);
>      ret = vbd_aligned_io(bs, sector_num, iobuf, nb_sectors, 0);
>      memcpy(buf, iobuf, nb_sectors * SECTOR_SIZE);
>      free(iobuf);
> @@ -242,7 +242,7 @@ static int vbd_write(BlockDriverState *b
>      int ret;
>      if (!((uintptr_t)buf & (SECTOR_SIZE-1)))
>       return vbd_aligned_io(bs, sector_num, (uint8_t*) buf, nb_sectors, 1);
> -    iobuf = memalign(PAGE_SIZE, nb_sectors * SECTOR_SIZE);
> +    iobuf = qemu_memalign(PAGE_SIZE, nb_sectors * SECTOR_SIZE);
>      memcpy(iobuf, buf, nb_sectors * SECTOR_SIZE);
>      ret = vbd_aligned_io(bs, sector_num, iobuf, nb_sectors, 1);
>      free(iobuf);
> diff -r 889b6b7d306f tools/ioemu/hw/fdc.c
> --- a/tools/ioemu/hw/fdc.c    Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/hw/fdc.c    Wed Feb 13 17:12:59 2008 +0000
> @@ -378,7 +378,7 @@ struct fdctrl_t {
>      uint8_t cur_drv;
>      uint8_t bootsel;
>      /* Command FIFO */
> -    uint8_t fifo[FD_SECTOR_LEN];
> +    uint8_t *fifo;
>      uint32_t data_pos;
>      uint32_t data_len;
>      uint8_t data_state;
> @@ -497,6 +497,11 @@ fdctrl_t *fdctrl_init (int irq_lvl, int
>      fdctrl = qemu_mallocz(sizeof(fdctrl_t));
>      if (!fdctrl)
>          return NULL;
> +    fdctrl->fifo = qemu_memalign(512, FD_SECTOR_LEN);
> +    if (fdctrl->fifo == NULL) {
> +        qemu_free(fdctrl);
> +        return NULL;
> +    }
>      fdctrl->result_timer = qemu_new_timer(vm_clock,
>                                            fdctrl_result_timer, fdctrl);
>
> diff -r 889b6b7d306f tools/ioemu/hw/ide.c
> --- a/tools/ioemu/hw/ide.c    Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/hw/ide.c    Wed Feb 13 17:12:59 2008 +0000
> @@ -2306,7 +2306,7 @@ static void ide_init2(IDEState *ide_stat
>
>      for(i = 0; i < 2; i++) {
>          s = ide_state + i;
> -        s->io_buffer = memalign(getpagesize(), MAX_MULT_SECTORS*512 + 4);
> +        s->io_buffer = qemu_memalign(getpagesize(), MAX_MULT_SECTORS*512 +
> 4); if (i == 0)
>              s->bs = hd0;
>          else
> diff -r 889b6b7d306f tools/ioemu/hw/scsi-disk.c
> --- a/tools/ioemu/hw/scsi-disk.c      Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/hw/scsi-disk.c      Wed Feb 13 17:12:59 2008 +0000
> @@ -81,7 +81,7 @@ static SCSIRequest *scsi_new_request(SCS
>          free_requests = r->next;
>      } else {
>          r = qemu_malloc(sizeof(SCSIRequest));
> -     r->dma_buf = memalign(getpagesize(), SCSI_DMA_BUF_SIZE);
> +     r->dma_buf = qemu_memalign(getpagesize(), SCSI_DMA_BUF_SIZE);
>      }
>      r->dev = s;
>      r->tag = tag;
> diff -r 889b6b7d306f tools/ioemu/osdep.c
> --- a/tools/ioemu/osdep.c     Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/osdep.c     Wed Feb 13 17:12:59 2008 +0000
> @@ -61,6 +61,10 @@ void *qemu_malloc(size_t size)
>  }
>
>  #if defined(_WIN32)
> +void *qemu_memalign(size_t alignment, size_t size)
> +{
> +    return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
> +}
>
>  void *qemu_vmalloc(size_t size)
>  {
> @@ -172,6 +176,22 @@ void kqemu_vfree(void *ptr)
>
>  #endif
>
> +void *qemu_memalign(size_t alignment, size_t size)
> +{
> +#if defined(_POSIX_C_SOURCE)
> +    int ret;
> +    void *ptr;
> +    ret = posix_memalign(&ptr, alignment, size);
> +    if (ret != 0)
> +        return NULL;
> +    return ptr;
> +#elif defined(_BSD)
> +    return valloc(size);
> +#else
> +    return memalign(alignment, size);
> +#endif
> +}
> +
>  /* alloc shared memory pages */
>  void *qemu_vmalloc(size_t size)
>  {
> diff -r 889b6b7d306f tools/ioemu/osdep.h
> --- a/tools/ioemu/osdep.h     Wed Feb 13 17:02:05 2008 +0000
> +++ b/tools/ioemu/osdep.h     Wed Feb 13 17:12:59 2008 +0000
> @@ -14,6 +14,7 @@ void qemu_free(void *ptr);
>  void qemu_free(void *ptr);
>  char *qemu_strdup(const char *str);
>
> +void *qemu_memalign(size_t alignment, size_t size);
>  void *qemu_vmalloc(size_t size);
>  void qemu_vfree(void *ptr);



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Operating System Research Center

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