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ef8e512e29
We tried to load `g` from `bitmap[i]` before checking it is actually a
valid load. Tweaked a loop a bit to `break` early, when we are done
scanning for bits.
Before this commit undefined behaviour sanitizer from GCC 14+ was
unhappy at `test/unit/bitmap` test with following error.
```
../include/jemalloc/internal/bitmap.h:293:5: runtime error: load of
address 0x7bb1c2e08008 with insufficient space for an object of type
'const bitmap_t'
<...>
#0 0x62671a149954 in bitmap_ffu ../include/jemalloc/internal/bitmap.h:293
#1 0x62671a149954 in test_bitmap_xfu_body ../test/unit/bitmap.c:275
#2 0x62671a14b767 in test_bitmap_xfu ../test/unit/bitmap.c:323
#3 0x62671a376ad1 in p_test_impl ../test/src/test.c:149
#4 0x62671a377135 in p_test ../test/src/test.c:200
#5 0x62671a13da06 in main ../test/unit/bitmap.c:336
<...>
```
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| .github/workflows | ||
| bin | ||
| build-aux | ||
| doc | ||
| doc_internal | ||
| include | ||
| m4 | ||
| msvc | ||
| scripts | ||
| src | ||
| test | ||
| .appveyor.yml | ||
| .autom4te.cfg | ||
| .cirrus.yml | ||
| .clang-format | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| autogen.sh | ||
| ChangeLog | ||
| config.stamp.in | ||
| 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/