| commit | e13063aad7aee341d278d2a879a76ec7b59b2ad8 | |
| author | Rich Felker <dalias@aerifal.cx> | |
| Sat, 15 Sep 2018 03:08:53 +0000 (14 23:08 -0400) | ||
| committer | Rich Felker <dalias@aerifal.cx> | |
| Sat, 15 Sep 2018 03:08:53 +0000 (14 23:08 -0400) | ||
| tree | 312126a3ac1514eadb3ea88d4a73703f5291c8b2 | treesnapshot (tar.gz zip) |
| parent | da55d4884bf26ce31cd6a64ed176019c2ba9839a | commitdiff |
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.
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.
| src/errno/__errno_location.c | diffblobblamehistory | |
| src/include/errno.h | [new file with mode: 0644] | blob |