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Previously, the malloc_conf attribute wasn't as "weak" on MSVC as on other toolchain. While it is possible to override it in an OBJ file - in MSVC, every symbol coming from a LIB file can be overriden from an OBJ file - it isn't possible to override it from another lib file. This makes it impossible to override it from Rust, for instance, as it always generates libs and links them together, instead of linking the obj files directly. While the weak attribute is not supported by MSVC, it can be emulated using the /alternatename linker flag. This flag takes two symbols, and aliases the first symbol to the second if it isn't defined during linking. This ensures that the default value provided by jemalloc can be overridden from all contexts, whether the override comes from an obj or a lib, matching the behavior of gcc's weak attribute. This is supported by MSVC link.exe since time immemorial, and by lld-link since 3.7.0. |
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| configure.ac | ||
| COPYING | ||
| INSTALL.md | ||
| jemalloc.pc.in | ||
| Makefile.in | ||
| README | ||
| run_tests.sh | ||
| TUNING.md | ||
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 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: https://jemalloc.net/