diff options
Diffstat (limited to 'src/cmd/6l/l.h')
| -rw-r--r-- | src/cmd/6l/l.h | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/src/cmd/6l/l.h b/src/cmd/6l/l.h index 5f62239a1..ffb8a4552 100644 --- a/src/cmd/6l/l.h +++ b/src/cmd/6l/l.h @@ -40,7 +40,26 @@ enum { thechar = '6', - PtrSize = 8 + PtrSize = 8, + IntSize = 8, + + // Loop alignment constants: + // want to align loop entry to LoopAlign-byte boundary, + // and willing to insert at most MaxLoopPad bytes of NOP to do so. + // We define a loop entry as the target of a backward jump. + // + // gcc uses MaxLoopPad = 10 for its 'generic x86-64' config, + // and it aligns all jump targets, not just backward jump targets. + // + // As of 6/1/2012, the effect of setting MaxLoopPad = 10 here + // is very slight but negative, so the alignment is disabled by + // setting MaxLoopPad = 0. The code is here for reference and + // for future experiments. + // + LoopAlign = 16, + MaxLoopPad = 0, + + FuncAlign = 16 }; #define P ((Prog*)0) @@ -134,11 +153,16 @@ struct Sym int32 plt; int32 got; int32 align; // if non-zero, required alignment in bytes + int32 elfsym; + int32 locals; // size of stack frame locals area + int32 args; // size of stack frame incoming arguments area Sym* hash; // in hash table Sym* allsym; // in all symbol list Sym* next; // in text or data list Sym* sub; // in SSUB list Sym* outer; // container of sub + Sym* reachparent; + Sym* queue; vlong value; vlong size; Sym* gotype; @@ -146,6 +170,7 @@ struct Sym char* dynimpname; char* dynimplib; char* dynimpvers; + struct Section* sect; // STEXT Auto* autom; @@ -158,6 +183,7 @@ struct Sym Reloc* r; int32 nr; int32 maxr; + int rel_ro; }; struct Optab { @@ -294,9 +320,10 @@ enum EXTERN int32 HEADR; EXTERN int32 HEADTYPE; EXTERN int32 INITRND; -EXTERN vlong INITTEXT; -EXTERN vlong INITDAT; +EXTERN int64 INITTEXT; +EXTERN int64 INITDAT; EXTERN char* INITENTRY; /* entry point */ +EXTERN char* LIBINITENTRY; /* shared library entry point */ EXTERN char* pcstr; EXTERN Auto* curauto; EXTERN Auto* curhist; @@ -304,7 +331,7 @@ EXTERN Prog* curp; EXTERN Sym* cursym; EXTERN Sym* datap; EXTERN vlong elfdatsize; -EXTERN char debug[128]; +EXTERN int debug[128]; EXTERN char literal[32]; EXTERN Sym* textp; EXTERN Sym* etextp; |