https://android.googlesource.com/platform/external/jemalloc_new/+/a69f626a5e7d6334e142735189cbd793d524cf68/src/android_je_mallinfo.c
src/android_je_mallinfo.c - platform/external/jemalloc_new - Git at Google
c platform
https://www.unix.com/man-page/x11r4/3/mallinfo/
mallinfo(3) x11r4 man page | unix.com
Man page for mallinfo(3) on x11r4, from the unix.com online archive.
man pageunix