On 21 November 2014 04:11, Taras Kondratiuk <[email protected]>
wrote:

> On 11/20/2014 08:42 PM, Maxim Uvarov wrote:
>
>> On 11/20/2014 09:36 PM, Maxim Uvarov wrote:
>>
>>> On 11/20/2014 08:27 PM, Taras Kondratiuk wrote:
>>>
>>>> ODP application may want to override default ODP logging behaviour
>>>> and use custom logging function. Add a weak odp_override_log() function
>>>> for this purpose instead of default fprintf().
>>>>
>>>> Signed-off-by: Taras Kondratiuk <[email protected]>
>>>> ---
>>>>   platform/linux-generic/include/api/odp_debug.h |   24
>>>> ++++++++++++++----------
>>>>   platform/linux-generic/odp_init.c              |   14 ++++++++++++++
>>>>   2 files changed, 28 insertions(+), 10 deletions(-)
>>>>
>>>> diff --git a/platform/linux-generic/include/api/odp_debug.h
>>>> b/platform/linux-generic/include/api/odp_debug.h
>>>> index c9b2edd..be73318 100644
>>>> --- a/platform/linux-generic/include/api/odp_debug.h
>>>> +++ b/platform/linux-generic/include/api/odp_debug.h
>>>> @@ -14,6 +14,7 @@
>>>>     #include <stdio.h>
>>>>   #include <stdlib.h>
>>>> +#include <stdarg.h>
>>>>     #ifdef __cplusplus
>>>>   extern "C" {
>>>> @@ -79,6 +80,9 @@ typedef enum odp_log_level {
>>>>       ODP_LOG_ABORT
>>>>   } odp_log_level_e;
>>>>   +
>>>> +extern int odp_override_log(odp_log_level_e level, const char *fmt,
>>>> ...);
>>>> +
>>>>   /**
>>>>    * ODP default LOG macro.
>>>>    */
>>>> @@ -86,45 +90,45 @@ typedef enum odp_log_level {
>>>>   do { \
>>>>       switch (level) { \
>>>>       case ODP_LOG_ERR: \
>>>> -        fprintf(stderr, "%s:%d:%s():" fmt, __FILE__, \
>>>> +        odp_override_log(level, "%s:%d:%s():" fmt, __FILE__, \
>>>>           __LINE__, __func__, ##__VA_ARGS__); \
>>>>           break; \
>>>>       case ODP_LOG_DBG: \
>>>>           if (ODP_DEBUG_PRINT == 1) \
>>>> -            fprintf(stderr, "%s:%d:%s():" fmt, __FILE__, \
>>>> -            __LINE__, __func__, ##__VA_ARGS__); \
>>>> +            odp_override_log(level, "%s:%d:%s():" fmt, __FILE__, \
>>>> +                __LINE__, __func__, ##__VA_ARGS__); \
>>>>           break; \
>>>>       case ODP_LOG_ABORT: \
>>>> -        fprintf(stderr, "%s:%d:%s(): " fmt, __FILE__, \
>>>> +        odp_override_log(level, "%s:%d:%s(): " fmt, __FILE__, \
>>>>           __LINE__, __func__, ##__VA_ARGS__); \
>>>>           abort(); \
>>>>           break; \
>>>>       case ODP_LOG_UNIMPLEMENTED: \
>>>> -        fprintf(stderr, \
>>>> +        odp_override_log(level, \
>>>>               "%s:%d:The function %s() is not implemented\n" \
>>>>               fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
>>>>           break; \
>>>>       default: \
>>>> -        fprintf(stderr, "Unknown LOG level"); \
>>>> +        odp_override_log(level, "Unknown LOG level"); \
>>>>           break;\
>>>>       } \
>>>>   } while (0)
>>>>     /**
>>>> - * Debug printing macro, which prints output when DEBUG flag is set.
>>>> + * Log debug message if DEBUG flag is set.
>>>>    */
>>>>   #define ODP_DBG(fmt, ...) \
>>>>           ODP_LOG(ODP_LOG_DBG, fmt, ##__VA_ARGS__)
>>>>     /**
>>>> - * Print output to stderr (file, line and function).
>>>> + * Log error message.
>>>>    */
>>>>   #define ODP_ERR(fmt, ...) \
>>>>           ODP_LOG(ODP_LOG_ERR, fmt, ##__VA_ARGS__)
>>>>     /**
>>>> - * Print output to stderr (file, line and function),
>>>> - * then abort.
>>>> + * Log abort message and then stop execution (by default call abort()).
>>>> + * This function should not return.
>>>>    */
>>>>   #define ODP_ABORT(fmt, ...) \
>>>>           ODP_LOG(ODP_LOG_ABORT, fmt, ##__VA_ARGS__)
>>>> diff --git a/platform/linux-generic/odp_init.c
>>>> b/platform/linux-generic/odp_init.c
>>>> index 672b3d6..7fbfe36 100644
>>>> --- a/platform/linux-generic/odp_init.c
>>>> +++ b/platform/linux-generic/odp_init.c
>>>> @@ -8,6 +8,7 @@
>>>>   #include <odp_internal.h>
>>>>   #include <odp_debug.h>
>>>>   #include <odp_debug_internal.h>
>>>> +#include <odp_hints.h>
>>>>       int odp_init_global(odp_init_t *params  ODP_UNUSED,
>>>> @@ -89,3 +90,16 @@ int odp_term_local(void)
>>>>       ODP_UNIMPLEMENTED();
>>>>       return 0;
>>>>   }
>>>> +
>>>> +ODP_WEAK_SYMBOL int odp_override_log(odp_log_level_e level,
>>>> +                     const char *fmt, ...)
>>>> +{
>>>> +    va_list args;
>>>> +    int r;
>>>> +    (void)level;
>>>> +    va_start(args, fmt);
>>>> +    r = vfprintf(stdout, fmt, args);
>>>>
>>>
>>> don't like stdout here. It might be stderr or file descriptor.
>>>
>>> Maxim.
>>>
>>>  Ah, it's weak function. And you provided level also. Withdraw my note.
>>
>
> That actually was stderr first. But for testing I've changed it to
> stdout and forget to change it back. Will update in the next version.
>
> Is odp_init.c a good place for this function or it should be in a
> separate file? Like odp_log.c or odp_weaks.c


I favor odp_weak.c this is not an init function so I don't think odp_init.c
is the right place. odp_log might be good but we know we will be adding a
weak symbol for odp_abort, so we can group them I think.


>
>
>
>> Maxim.
>>
>>  +    va_end(args);
>>>> +
>>>> +    return r;
>>>> +}
>>>>
>>>
>>>
>>
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>>
>
>
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-- 
*Mike Holmes*
Linaro  Sr Technical Manager
LNG - ODP
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