Re: [PATCH 02/26] -Wpointer-sign: gdb_byte -> char.

[Yao Qi <yao@codesourcery.com>]

On 04/12/2013 06:59 AM, Pedro Alves wrote:
> diff --git a/gdb/i386-cygwin-tdep.c b/gdb/i386-cygwin-tdep.c
> index cee2adf..26ffbaa 100644
> --- a/gdb/i386-cygwin-tdep.c
> +++ b/gdb/i386-cygwin-tdep.c
> @@ -125,11 +125,11 @@ core_process_module_section (bfd *abfd, asection *sect, void *obj)
>     struct cpms_data *data = obj;
>     enum bfd_endian byte_order = gdbarch_byte_order (data->gdbarch);
>
> -  char *module_name;
> +  gdb_byte *module_name;
>     size_t module_name_size;
>     CORE_ADDR base_addr;
>
> -  char *buf = NULL;
> +  gdb_byte *buf = NULL;
>
>     if (strncmp (sect->name, ".module", 7) != 0)
>       return;
> @@ -160,7 +160,7 @@ core_process_module_section (bfd *abfd, asection *sect, void *obj)
>
>     /* The first module is the .exe itself.  */
>     if (data->module_count != 0)
> -    windows_xfer_shared_library (module_name, base_addr,
> +    windows_xfer_shared_library ((char *) module_name, base_addr,
>   				 data->gdbarch, data->obstack);
>     data->module_count++;
>

It would be nice to keep 'module_name' of type 'char *', because it is a 
string.

> diff --git a/gdb/solib-dsbt.c b/gdb/solib-dsbt.c
> index e2822c1..86ce062 100644
> --- a/gdb/solib-dsbt.c
> +++ b/gdb/solib-dsbt.c
> @@ -840,7 +840,7 @@ enable_break2 (void)
>     if (interp_sect)
>       {
>         unsigned int interp_sect_size;
> -      gdb_byte *buf;
> +      char *buf;
>         bfd *tmp_bfd = NULL;
>         CORE_ADDR addr;
>         gdb_byte addr_buf[TIC6X_PTR_SIZE];
> @@ -852,7 +852,7 @@ enable_break2 (void)
>         interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
>         buf = alloca (interp_sect_size);
>         bfd_get_section_contents (exec_bfd, interp_sect,
> -				buf, 0, interp_sect_size);
> +				(bfd_byte *) buf, 0, interp_sect_size);

The declaration of bfd_get_section_contents is,

bfd_boolean bfd_get_section_contents
    (bfd *abfd, asection *section, void *location, file_ptr offset,
     bfd_size_type count);

the parameter 'location' 's type is 'void *', do we really need to cast 
'buf' to 'bfd_byte *'?

>
>         /* Now we need to figure out where the dynamic linker was
>            loaded so that we can load its symbols and place a breakpoint
> diff --git a/gdb/solib-frv.c b/gdb/solib-frv.c
> index 52588bc..1765969 100644
> --- a/gdb/solib-frv.c
> +++ b/gdb/solib-frv.c
> @@ -535,7 +535,7 @@ enable_break2 (void)
>     if (interp_sect)
>       {
>         unsigned int interp_sect_size;
> -      gdb_byte *buf;
> +      char *buf;
>         bfd *tmp_bfd = NULL;
>         int status;
>         CORE_ADDR addr, interp_loadmap_addr;
> @@ -548,7 +548,7 @@ enable_break2 (void)
>         interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
>         buf = alloca (interp_sect_size);
>         bfd_get_section_contents (exec_bfd, interp_sect,
> -				buf, 0, interp_sect_size);
> +				(gdb_byte *) buf, 0, interp_sect_size);

Likewise.

-- 
Yao (齐尧)