Re: [Xen-devel] [PATCHv2] mini-os: build fixes for lwip 1.3.2

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

David Vrabel, le Mon 28 Jan 2013 18:12:13 +0000, a écrit :
> From: David Vrabel <david.vrabel@xxxxxxxxxx>
> 
> Various fixes to mini-os needed to build lwip 1.3.2:
> 
> - Don't build the tests.
> - Add BSD-style endianness macros to endian.h.
> - free() is called via a function pointer so it needs to be a real
>   function.  Do the same for malloc() and realloc().
> 
> Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

Acked-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

> ---
>  extras/mini-os/Makefile          |    2 +-
>  extras/mini-os/README            |    2 +-
>  extras/mini-os/include/endian.h  |    4 ++++
>  extras/mini-os/include/xmalloc.h |   10 +++++-----
>  extras/mini-os/lib/xmalloc.c     |   12 +++++++++++-
>  5 files changed, 22 insertions(+), 8 deletions(-)
> 
> diff --git a/extras/mini-os/Makefile b/extras/mini-os/Makefile
> index 2302a23..50d038b 100644
> --- a/extras/mini-os/Makefile
> +++ b/extras/mini-os/Makefile
> @@ -136,7 +136,7 @@ arch_lib:
>  
>  ifeq ($(CONFIG_LWIP),y)
>  # lwIP library
> -LWC  := $(shell find $(LWIPDIR)/ -type f -name '*.c')
> +LWC  := $(shell find $(LWIPDIR)/src -type f -name '*.c')
>  LWC  := $(filter-out %6.c %ip6_addr.c %ethernetif.c, $(LWC))
>  LWO  := $(patsubst %.c,%.o,$(LWC))
>  LWO  += $(OBJ_DIR)/lwip-arch.o
> diff --git a/extras/mini-os/README b/extras/mini-os/README
> index 41573aa..710a303 100644
> --- a/extras/mini-os/README
> +++ b/extras/mini-os/README
> @@ -19,7 +19,7 @@ This includes:
>  
>  - to build it just type make.
>  
> -- to build it with TCP/IP support, download LWIP 1.3 source code and type
> +- to build it with TCP/IP support, download LWIP 1.3.2 source code and type
>  
>    make LWIPDIR=/path/to/lwip/source
>  
> diff --git a/extras/mini-os/include/endian.h b/extras/mini-os/include/endian.h
> index cdf432b..5345517 100644
> --- a/extras/mini-os/include/endian.h
> +++ b/extras/mini-os/include/endian.h
> @@ -12,4 +12,8 @@
>  
>  #include <arch_wordsize.h>
>  
> +#define BYTE_ORDER __BYTE_ORDER
> +#define BIG_ENDIAN __BIG_ENDIAN
> +#define LITTLE_ENDIAN __LITTLE_ENDIAN
> +
>  #endif       /* endian.h */
> diff --git a/extras/mini-os/include/xmalloc.h 
> b/extras/mini-os/include/xmalloc.h
> index 13b242e..11fb027 100644
> --- a/extras/mini-os/include/xmalloc.h
> +++ b/extras/mini-os/include/xmalloc.h
> @@ -14,16 +14,16 @@
>  #include <limits.h>
>  
>  #define DEFAULT_ALIGN (sizeof(unsigned long))
> -#define malloc(size) _xmalloc(size, DEFAULT_ALIGN)
> -#define free(ptr) xfree(ptr)
> -#define realloc(ptr, size) _realloc(ptr, size)
>  
> -/* Free any of the above. */
> +extern void *malloc(size_t size);
> +extern void *realloc(void *ptr, size_t size);
> +extern void free(void *ptr);
> +
> +/* Free memory from any xmalloc*() call. */
>  extern void xfree(const void *);
>  
>  /* Underlying functions */
>  extern void *_xmalloc(size_t size, size_t align);
> -extern void *_realloc(void *ptr, size_t size);
>  
>  #endif
>  
> diff --git a/extras/mini-os/lib/xmalloc.c b/extras/mini-os/lib/xmalloc.c
> index 015cd31..23e367d 100644
> --- a/extras/mini-os/lib/xmalloc.c
> +++ b/extras/mini-os/lib/xmalloc.c
> @@ -267,7 +267,12 @@ void xfree(const void *p)
>      /* spin_unlock_irqrestore(&freelist_lock, flags); */
>  }
>  
> -void *_realloc(void *ptr, size_t size)
> +void *malloc(size_t size)
> +{
> +    return _xmalloc(size, DEFAULT_ALIGN);
> +}
> +
> +void *realloc(void *ptr, size_t size)
>  {
>      void *new;
>      struct xmalloc_hdr *hdr;
> @@ -296,6 +301,11 @@ void *_realloc(void *ptr, size_t size)
>  
>      return new;
>  }
> +
> +void free(void *ptr)
> +{
> +    xfree(ptr);
> +}
>  #endif
>  
>  /*
> -- 
> 1.7.2.5
> 
> 
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> http://lists.xen.org/xen-devel
> 

-- 
Samuel
<s> je la connaissais pas celle la : "make: Entering an unknown directory"
 -+- #ens-mim -+-

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