Ensure we don't reallocate during 2GB address space block #49
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AddsReplaced with Linux syscalls and stack buffer to avoid any allocations.procLine.reserve(0x8000);
to ensure that thestd::string
doesn't cause memory allocation between reading/proc/self/maps
and themmap
calls.ReplacesMAP_FIXED
withMAP_FIXED_NOREPLACE
(Linux 4.17+) to ensure that we bail if our mapping would overwrite an existing one.blockUpper2GB
to simplify cleanup.-fno-pie -no-pie
cflags to ensure that we're not using PIE. (Probably unnecessary, but seems good)