dev-util/google-perftools-2.8.1 was released on 2020-12-21: > * previous release contained change to release memory without page > heap lock, but this change had at least one bug that caused to > crashes and corruption when running under aggressive decommit mode > (this is not default). While we check for other bugs, this feature > was reverted. See github issue #1204 and issue #1227. > > * stack traces depth captured by gperftools is now up to 254 levels > deep. Thanks to Kerrick Staley for this small but useful tweak. > > * Levon Ter-Grigoryan has contributed small fix for compiler warning. > > * Grant Henke has contributed updated detection of program counter > register for OS X on arm64. > > * Tim Gates has contributed small typo fix. > > * Steve Langasek has contributed basic build fixes for riscv64 (!). > > * Isaac Hier and okhowang have contributed premiliminary port of build > infrastructure to cmake. This works, but it is very premiliminary. > Autotools-based build is the only officially supported build for > now. dev-util/google-perftools-2.8.90 was released on 2021-02-15: > * Jarno Rajahalme has contributed fix for crashing bug in syscalls > support for aarch64. > > * User SSE4 has contributed basic support for Elbrus 2000 architecture > (!) > > * Venkatesh Srinivas has contributed cleanup to atomic ops. > > * Đoàn Trần Công Danh has fixed cpu profiler compilation on musl. > > * there is now better backtracing support for aarch64 and > riscv. x86-64 with frame pointers now also defaults to this new > "generic" frame pointer backtracer. > > * emergency malloc is now enabled by default. Fixes hang on musl when > libgcc backtracer is enabled. > > * bunch of legacy config tests has been removed dev-util/google-perftools-2.9 was released on 2021-02-21: > * Venkatesh Srinivas has contributed thread-safety annotations > support. > > * couple more unit test bugs that caused tcmalloc_unittest to fail on > recent clang has been fixed. > > * usage of unsupportable linux_syscall_support.h has been removed from > few places. Building with --disable-heap-checker now completely > avoids it. Expect complete death of this header in next major > release. dev-util/google-perftools-2.9.1 was released on 2021-03-03: > * OSX builds new prefer backtrace() and have somewhat working heap > sampling. > > * Incorrect assertion failure was fixed that crashed tcmalloc if > assertions were on and sized delete was used. More details in github > issue #1254.
done in https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c01b27ed8c1dfed0ed832858d5d9819c891b2be4
