[OE-core] [PATCH] rmc: Fix compiling issue with musl

[Jianxun Zhang]

> On Nov 14, 2016, at 2:50 PM, Khem Raj <raj.khem at gmail.com> wrote:
> 
> 
> 
> On 11/14/16 2:10 PM, Jianxun Zhang wrote:
>> | src/rmcl/rmcl.c: In function 'query_policy_from_db':
>> | src/rmcl/rmcl.c:254:25: error: unknown type name 'ssize_t'
>> | ssize_t cmd_name_len = strlen((char *)&rmc_db[policy_idx]) + 1;
>> | ^~~~~~~~
>> 
>> The musl C lib provides ssize_t but we need to enable it
>> with a macro.
>> 
>> Signed-off-by: Jianxun Zhang <jianxun.zhang at linux.intel.com>
>> ---
>> Before maintainer(s) push "merge" button, please read this short summary.
>> I feel there could be a better syntax to do it. And We could need to get
>> an ack from Hernandez, Alejandro who reported this issue and seems still
>> have (other) compiling errors even with this patch.
>> 
>> I submit this patch based on my thoughts and test out of tiny config.
>> 
>> Tests:
>> () Specify TCLIBC = "musl" in local.conf in my build dir.
>> () Build quark
>> () I can see this issue happens without the fix
>> () With this patch and do clean builds for quark and corei7-64,
>> Compiling passes. Boot test passed on RMC targets quark and Broxton-m.
>> 
>> Thanks
>> 
>> 
>> common/recipes-bsp/rmc/rmc.bb | 2 ++
>> 1 file changed, 2 insertions(+)
>> 
>> diff --git a/common/recipes-bsp/rmc/rmc.bb b/common/recipes-bsp/rmc/rmc.bb
>> index aeaf12e..61a1bdb 100644
>> --- a/common/recipes-bsp/rmc/rmc.bb
>> +++ b/common/recipes-bsp/rmc/rmc.bb
>> @@ -24,6 +24,8 @@ COMPATIBLE_HOST = "(x86_64.*|i.86.*)-linux*"
>> 
>> EXTRA_OEMAKE='RMC_CFLAGS="-Wl,--hash-style=both"'
>> 
>> +EXTRA_OEMAKE_append_libc-musl = '" -D__NEED_ssize_t"'
> 
> this is not right way to handle it. you should be doing something like
> #include <sys/types.h> in your source file
Khem,
Thanks lot for your review even when I wrongly submit it here! I tried it first but didn’t succeed for some reason with the suggested change.

Let me try it again...

> 
> 
>> +
>> # from gnu-efi, we should align arch-mapping with it.
>> def rmc_efi_arch(d):
>>     import re