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| author | Dave Cheney <dave@cheney.net> | 2013-01-20 20:14:24 +1100 |
|---|---|---|
| committer | Dave Cheney <dave@cheney.net> | 2013-01-20 20:14:24 +1100 |
| commit | 9b568ef2b86ad383e5db9bc57723d4ce554a319e (patch) | |
| tree | d07037adc09e6d9c08ac6cb6ede222704817531d /src/cmd/5l | |
| parent | 42c86828b17146bde52e8b804174012e99d455fc (diff) | |
| download | go-9b568ef2b86ad383e5db9bc57723d4ce554a319e.tar.xz | |
cmd/5l: reduce the size of Prog and Sym
Prog
* Remove the unused Prog* dlink
* note that align is also unused, but removing it does not help due to alignment issues.
Saves 4 bytes, sizeof(Prog): 84 => 80.
Sym
* Align {u,}char fields on word boundaries
Saves 4 bytes, sizeof(Sym): 136 => 132.
Tested on linux/arm and freebsd/arm.
R=minux.ma, remyoudompheng, rsc
CC=golang-dev
https://golang.org/cl/7106050
Diffstat (limited to 'src/cmd/5l')
| -rw-r--r-- | src/cmd/5l/l.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/cmd/5l/l.h b/src/cmd/5l/l.h index 69c8557878..21a3bced8e 100644 --- a/src/cmd/5l/l.h +++ b/src/cmd/5l/l.h @@ -108,7 +108,6 @@ struct Prog } u0; Prog* cond; Prog* link; - Prog* dlink; int32 pc; int32 line; int32 spadj; @@ -117,7 +116,7 @@ struct Prog uchar as; uchar scond; uchar reg; - uchar align; + uchar align; // unused }; #define regused u0.u0regused @@ -136,8 +135,6 @@ struct Sym uchar reachable; uchar dynexport; uchar leaf; - uchar stkcheck; - uchar hide; int32 dynid; int32 plt; int32 got; @@ -148,6 +145,8 @@ struct Sym int32 elfsym; uchar special; uchar fnptr; // used as fn ptr + uchar stkcheck; + uchar hide; Sym* hash; // in hash table Sym* allsym; // in all symbol list Sym* next; // in text or data list |