musl - musl - an implementation of the standard library for Linux-based systems

add hidden version of &errno accessor function

this significantly improves codegen in functions that need to access errno but otherwise have no need for a GOT pointer. we could probably improve it much more by including an inline version of the &errno accessor function, but that depends on having the definitions of struct __pthread and __pthread_self(), which at present would expose a lot more than is appropriate. moving them to a small tls.h later might make this more reasonable.

Diffstat (limited to 'src/include/errno.h')

1 files changed, 11 insertions, 0 deletions