Messages in this thread | | | Date | Thu, 27 Feb 2003 08:58:41 -0600 | From | Steve Kenton <> | Subject | pointer to .subsection and .previous usage in kernel? |
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Anyone have a pointer to what we are really trying to accomplish with .subsection and .previous in the in-line and asm stuff?
Like maybe a readme or coding style doc for in-line and asm code?
That was the main thing I tripped over while trying to build a 2.5 kernel using the cygwin toolchain with an eye towards uml under windows. I found very little documentation about the directives themselves even in the gnu info stuff and nada, except one thread about abstracting them in spinlocks, bout how/why they are used in the kernel. They appear to be elf specific which is why the i386pe stuff puked on them. I assume that most of this is to maximize cache hits, but that's just a guess. There are a largish handful of them scattered around the kernel outside of locks. Any pointers would be appreciated.
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