project-base/server-skynet-source-3rd-jemalloc
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Add tls_model configuration.

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The tls_model attribute isn't supporte by clang (yet?), so add a
configure test that defines JEMALLOC_TLS_MODEL appropriately.
This commit is contained in:
Jason Evans 2012-04-03 22:30:05 -07:00
parent 01b3fe55ff
commit 3cc1f1aa69
3 changed files with 22 additions and 4 deletions
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17
configure.ac
View File

@ -285,6 +285,21 @@ if test "x${je_cv_attribute}" = "xyes" ; then
JE_CFLAGS_APPEND([-fvisibility=hidden])
fi
fi
dnl Check for tls_model attribute support (clang 3.0 still lacks support).
SAVED_CFLAGS="${CFLAGS}"
JE_CFLAGS_APPEND([-Werror])
JE_COMPILABLE([tls_model attribute], [],
[static __thread int
__attribute__((tls_model("initial-exec"))) foo;
foo = 0;],
[je_cv_tls_model])
CFLAGS="${SAVED_CFLAGS}"
if test "x${je_cv_tls_model}" = "xyes" ; then
AC_DEFINE([JEMALLOC_TLS_MODEL],
[__attribute__((tls_model("initial-exec")))])
else
AC_DEFINE([JEMALLOC_TLS_MODEL], [ ])
fi
JE_COMPILABLE([mremap(...MREMAP_FIXED...)], [
#define _GNU_SOURCE
@ -719,7 +734,7 @@ AC_CACHE_CHECK([STATIC_PAGE_SHIFT],
return 1;
}
fprintf(f, "%u\n", ffs((int)result) - 1);
close(f);
fclose(f);
return 0;
]])],

6
include/jemalloc/internal/tsd.h
View File

@ -87,14 +87,14 @@ extern bool a_name##_booted;
/* malloc_tsd_data(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_ATTR(tls_model("initial-exec")) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##_tls = a_initializer; \
a_attr __thread bool JEMALLOC_ATTR(tls_model("initial-exec")) \
a_attr __thread bool JEMALLOC_TLS_MODEL \
a_name##_initialized = false; \
a_attr bool a_name##_booted = false;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_ATTR(tls_model("initial-exec")) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##_tls = a_initializer; \
a_attr pthread_key_t a_name##_tsd; \
a_attr bool a_name##_booted = false;

3
include/jemalloc/jemalloc_defs.h.in
View File

@ -108,6 +108,9 @@
# define JEMALLOC_ATTR(s) JEMALLOC_CATTR(s,)
#endif
/* Non-empty if the tls_model attribute is supported. */
#undef JEMALLOC_TLS_MODEL
/* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */
#undef JEMALLOC_CC_SILENCE