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Update GrapheneOS hardened_malloc documentation from version 0.0.0.3 to 0.0.0.7.

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inference 2023-06-12 17:39:13 +01:00
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security/hardened_malloc.adoc
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@ -1,9 +1,9 @@
= GrapheneOS hardened_malloc = GrapheneOS hardened_malloc
Version: 0.0.0.3 Version: 0.0.0.7
This documentation contains the instructions to use This documentation contains instructions to use
https://github.com/GrapheneOS/hardened_malloc[GrapheneOS' hardened_malloc] memory allocator as the https://github.com/GrapheneOS/hardened_malloc[GrapheneOS' hardened_malloc] memory allocator as the
system's default memory allocator. These instructions apply to both musl and glibc C libraries on system's default memory allocator. These instructions apply to both musl and glibc C libraries on
Unix-based and Unix-like systems. Unix-based and Unix-like systems.
@ -27,9 +27,10 @@ of guard pages.
`make <arguments>` `make <arguments>`
`CONFIG_N_ARENA=n` can be adjusted to increase parallel performance at the expense of memory usage, `CONFIG_N_ARENA=n` can be adjusted to increase parallel performance at the expense of memory usage,
or decrease memory usage at the expense of parallel performance, where `n` is an integer. For or decrease memory usage at the expense of parallel performance, where `n` is an integer; higher
low-memory systems, `VARIANT=light` can be used to compile the light variant of hardened_malloc, values prefer parallel performance, lower values prefer lower memory usage. For low-memory systems,
which sacrifices some security for much less memory usage. `VARIANT=light` can be used to compile the light variant of hardened_malloc, which sacrifices some
security for much less memory usage.
== Copy Compiled hardened_malloc Library == Copy Compiled hardened_malloc Library
@ -37,5 +38,6 @@ which sacrifices some security for much less memory usage.
== Set System to Preload hardened_malloc on Boot == Set System to Preload hardened_malloc on Boot
musl-based systems: Add `export LD_PRELOAD=<hardened_malloc_path>` to `/etc/environment` + musl-based systems: Add `export LD_PRELOAD="<hardened_malloc_path>"` to `/etc/environment` +
+
glibc-based systems: Add `<hardened_malloc_path>` to `/etc/ld.so.preload` glibc-based systems: Add `<hardened_malloc_path>` to `/etc/ld.so.preload`