ed84764a2a
glibc defines its malloc implementation with several weak and strong symbols: strong_alias (__libc_calloc, __calloc) weak_alias (__libc_calloc, calloc) strong_alias (__libc_free, __cfree) weak_alias (__libc_free, cfree) strong_alias (__libc_free, __free) strong_alias (__libc_free, free) strong_alias (__libc_malloc, __malloc) strong_alias (__libc_malloc, malloc) The issue is not with the weak symbols, but that other parts of glibc depend on __libc_malloc explicitly. Defining them in terms of jemalloc API's allows the linker to drop glibc's malloc.o completely from the link, and static linking no longer results in symbol collisions. Another wrinkle: jemalloc during initialization calls sysconf to get the number of CPU's. GLIBC allocates for the first time before setting up isspace (and other related) tables, which are used by sysconf. Instead, use the pthread API to get the number of CPUs with GLIBC, which seems to work. This resolves #442. |
||
|---|---|---|
| bin | ||
| build-aux | ||
| doc | ||
| include | ||
| msvc | ||
| src | ||
| test | ||
| .appveyor.yml | ||
| .autom4te.cfg | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| autogen.sh | ||
| ChangeLog | ||
| config.stamp.in | ||
| configure.ac | ||
| COPYING | ||
| coverage.sh | ||
| INSTALL | ||
| jemalloc.pc.in | ||
| Makefile.in | ||
| README | ||
jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. jemalloc first came into use as the FreeBSD libc allocator in 2005, and since then it has found its way into numerous applications that rely on its predictable behavior. In 2010 jemalloc development efforts broadened to include developer support features such as heap profiling, Valgrind integration, and extensive monitoring/tuning hooks. Modern jemalloc releases continue to be integrated back into FreeBSD, and therefore versatility remains critical. Ongoing development efforts trend toward making jemalloc among the best allocators for a broad range of demanding applications, and eliminating/mitigating weaknesses that have practical repercussions for real world applications. The COPYING file contains copyright and licensing information. The INSTALL file contains information on how to configure, build, and install jemalloc. The ChangeLog file contains a brief summary of changes for each release. URL: http://www.canonware.com/jemalloc/