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| author | Dmitry Stogov <dmitry@zend.com> | 2019-09-18 14:03:07 +0300 |
|---|---|---|
| committer | Dmitry Stogov <dmitry@zend.com> | 2019-09-18 14:03:07 +0300 |
| commit | 2aefd112114bd150f5dbba0be6d0f8601561da4e (patch) | |
| tree | 872e20583665f96651719d1cad934b152225cf6b /TSRM | |
| parent | d7b4cdff3f048ce232bd16870695ffbfcba45f4e (diff) | |
| download | php-git-2aefd112114bd150f5dbba0be6d0f8601561da4e.tar.gz | |
Optimize access to thread local cache.
This patch saves one CPU instruction on each "_tsrm_ls_cache" access in ZTS CLI/CGI/FPM builds.
This reduce typical instruction sequence for EG(current_execute_data) access from 4 to 3 CPU instructions.
Diffstat (limited to 'TSRM')
| -rw-r--r-- | TSRM/TSRM.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/TSRM/TSRM.h b/TSRM/TSRM.h index 9b67c0c2df..b25e3db149 100644 --- a/TSRM/TSRM.h +++ b/TSRM/TSRM.h @@ -143,6 +143,14 @@ TSRM_API const char *tsrm_api_name(void); # define TSRM_TLS __thread #endif +#if !defined(__has_attribute) || !__has_attribute(tls_model) +# define TSRM_TLS_MODEL_ATTR +#elif __PIC__ +# define TSRM_TLS_MODEL_ATTR __attribute__((tls_model("initial-exec"))) +#else +# define TSRM_TLS_MODEL_ATTR __attribute__((tls_model("local-exec"))) +#endif + #define TSRM_SHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)+1) #define TSRM_UNSHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)-1) @@ -155,8 +163,8 @@ TSRM_API const char *tsrm_api_name(void); #define TSRMG_BULK_STATIC(id, type) ((type) (*((void ***) TSRMLS_CACHE))[TSRM_UNSHUFFLE_RSRC_ID(id)]) #define TSRMG_FAST_STATIC(offset, type, element) (TSRMG_FAST_BULK_STATIC(offset, type)->element) #define TSRMG_FAST_BULK_STATIC(offset, type) ((type) (((char*) TSRMLS_CACHE)+(offset))) -#define TSRMLS_CACHE_EXTERN() extern TSRM_TLS void *TSRMLS_CACHE; -#define TSRMLS_CACHE_DEFINE() TSRM_TLS void *TSRMLS_CACHE = NULL; +#define TSRMLS_CACHE_EXTERN() extern TSRM_TLS void *TSRMLS_CACHE TSRM_TLS_MODEL_ATTR; +#define TSRMLS_CACHE_DEFINE() TSRM_TLS void *TSRMLS_CACHE TSRM_TLS_MODEL_ATTR = NULL; #define TSRMLS_CACHE_UPDATE() TSRMLS_CACHE = tsrm_get_ls_cache() #define TSRMLS_CACHE _tsrm_ls_cache |