3rd-party/linux-kernel-module-cheat
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readme: getting started tidbits

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Ciro Santilli
2018-09-14 07:59:04 +01:00
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README.adoc
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@@ -27,11 +27,11 @@ System simulators are cool compared to real hardware because they are:
The current components we focus the most on are:
* Linux kernel and Linux kernel modules
* <<linux-kernel>> and Linux kernel modules
* full systems emulators, currently <<qemu-buildroot-setup,qemu>> and <<gem5-buildroot-setup,gem5>>
* <<buildroot>>. We use and therefore document, a large part of its feature set.
The following components are not covered, but it shouldn't be hard to do:
The following components are not covered, but they would also benefit from this setup, and it shouldn't be hard to add them:
* C standard libraries
* compilers. Project idea: add a new instruction to x86, then hack up GCC to actually use it, and make a C program that generates it.
@@ -53,7 +53,7 @@ If you don't know which one to go for, start with <<qemu-buildroot-setup>>.
The trade-offs are basically a balance between:
* speed ans size; how long and how much disk space do the build and run take?
* speed ans size: how long and how much disk space do the build and run take?
* visibility: can you GDB step debug everything and read source code?
* modifiability: can you modify the source code and rebuild a modified version?
* portability: does it work on a Windows host? Could it ever?
@@ -3454,7 +3454,7 @@ This likely comes from the ifdef split at `init/main.c`:
=== Linux kernel entry point
`start_kernel` is a good definition of it: ttps://stackoverflow.com/questions/18266063/does-kernel-have-main-function/33422401#33422401
`start_kernel` is a good definition of it: https://stackoverflow.com/questions/18266063/does-kernel-have-main-function/33422401#33422401
=== Kernel module APIs