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goos goarch

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SVN=121348
This commit is contained in:
Ken Thompson 2008-06-05 16:56:23 -07:00
parent 28429aaaa6
commit e2c3ec3173
3 changed files with 109 additions and 26 deletions
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65
src/cmd/6l/asm.c
View File

@ -97,6 +97,13 @@ lputl(long l)
cput(l>>24);
}
void
llputl(vlong v)
{
lputl(v);
lputl(v>>32);
}
void
strnput(char *s, int n)
{
@ -166,6 +173,10 @@ asmb(void)
case 5:
seek(cout, HEADR+textsize, 0);
break;
case 7:
v = rnd(HEADR+textsize, INITRND);
seek(cout, v, 0);
break;
case 6:
v = HEADR+textsize;
myseek(cout, v);
@ -207,6 +218,8 @@ asmb(void)
default:
case 2:
case 5:
case 7:
debug['s'] = 1;
seek(cout, HEADR+textsize+datsize, 0);
break;
case 6:
@ -283,7 +296,7 @@ asmb(void)
wputl(52); /* Ehdr size */
wputl(32); /* Phdr size */
wputl(3); /* # of Phdrs */
wputl(0); /* Shdr size */
wputl(40); /* Shdr size */
wputl(0); /* # of Shdrs */
wputl(0); /* Shdr string size */
@ -362,6 +375,56 @@ asmb(void)
1); /* flag - zero fill */
machstack(va+HEADR);
break;
case 7:
/* elf amd-64 */
strnput("\177ELF", 4); /* e_ident */
cput(2); /* class = 64 bit */
cput(1); /* data = LSB */
cput(1); /* version = CURRENT */
strnput("", 9);
/*10*/ wputl(2); /* type = EXEC */
wputl(62); /* machine = AMD64 */
lputl(1L); /* version = CURRENT */
/*18*/ llputl(entryvalue()); /* entry vaddr */
llputl(64L); /* offset to first phdr */
llputl(0L); /* offset to first shdr */
/*30*/ lputl(0L); /* processor specific flags */
wputl(64); /* Ehdr size */
wputl(56); /* Phdr size */
wputl(2); /* # of Phdrs */
wputl(64); /* Shdr size */
wputl(0); /* # of Shdrs */
wputl(0); /* Shdr string size */
lputl(1L); /* text - type = PT_LOAD */
lputl(1L+4L); /* text - flags = PF_X+PF_R */
llputl(HEADR); /* file offset */
llputl(INITTEXT); /* vaddr */
llputl(INITTEXT); /* paddr */
llputl(textsize); /* file size */
llputl(textsize); /* memory size */
llputl(INITRND); /* alignment */
lputl(1L); /* data - type = PT_LOAD */
lputl(1L+2L+4L); /* text - flags = PF_X+PF_W+PF_R */
v = rnd(HEADR+textsize, INITRND);
llputl(v); /* file offset */
llputl(INITDAT); /* vaddr */
llputl(INITDAT); /* paddr */
llputl(datsize); /* file size */
llputl(datsize+bsssize); /* memory size */
llputl(INITRND); /* alignment */
// lputl(0L); /* data - type = PT_NULL */
// lputl(4L); /* ro - flags = PF_R */
// llputl(HEADR+textsize+datsize); /* file offset */
// llputl(0L);
// llputl(0L);
// llputl(symsize); /* symbol table size */
// llputl(lcsize); /* line number size */
// llputl(0x04L); /* alignment */
break;
}
cflush();
}

3
src/cmd/6l/l.h
View File

@ -338,7 +338,8 @@ EXTERN int dtype;
EXTERN char* paramspace;
EXTERN Adr* reloca;
EXTERN int doexp, dlm;
EXTERN int doexp; // export table
EXTERN int dlm; // dynamically loadable module
EXTERN int imports, nimports;
EXTERN int exports, nexports;
EXTERN char* EXPTAB;

67
src/cmd/6l/obj.c
View File

@ -32,15 +32,11 @@
#include "l.h"
#include <ar.h>
#ifndef DEFAULT
#define DEFAULT '9'
#endif
char *noname = "<none>";
char symname[] = SYMDEF;
char thechar = '6';
char *thestring = "amd64";
char *paramspace = "FP";
char* thestring = "amd64";
char* paramspace = "FP";
/*
* -H2 -T4136 -R4096 is plan9 64-bit format
@ -90,7 +86,7 @@ main(int argc, char *argv[])
INITDAT = -1;
INITRND = -1;
INITENTRY = 0;
HEADTYPE = 6; // botch
ARGBEGIN {
default:
c = ARGC();
@ -142,14 +138,22 @@ HEADTYPE = 6; // botch
diag("usage: 6l [-options] objects");
errorexit();
}
if(!debug['9'] && !debug['U'] && !debug['B'])
debug[DEFAULT] = 1;
mywhatsys(); // get goroot, goarch, goos
if(strcmp(goarch, thestring) != 0)
print("goarch is not known: %s\n", goarch);
if(HEADTYPE == -1) {
if(debug['B'])
HEADTYPE = 2;
if(debug['9'])
HEADTYPE = 2;
HEADTYPE = 2;
if(strcmp(goos, "linux") == 0)
HEADTYPE = 7;
else
if(strcmp(goos, "darwin") == 0)
HEADTYPE = 6;
else
print("goos is not known: %s\n", goos);
}
switch(HEADTYPE) {
default:
diag("unknown -H option");
@ -190,6 +194,15 @@ HEADTYPE = 6; // botch
if(INITRND == -1)
INITRND = 4096;
break;
case 7: /* elf64 executable */
HEADR = rnd(64L+2*56L, 16);
if(INITTEXT == -1)
INITTEXT = 0x400000L+HEADR;
if(INITDAT == -1)
INITDAT = 0;
if(INITRND == -1)
INITRND = 4096;
break;
}
if(INITDAT != 0 && INITRND != 0)
print("warning: -D0x%llux is ignored because of -R0x%lux\n",
@ -300,7 +313,7 @@ HEADTYPE = 6; // botch
if(i >= D_X0+8)
regrex[i] = Rxr | Rxx | Rxb;
}
if(i >= D_CR+8 && i <= D_CR+15)
if(i >= D_CR+8 && i <= D_CR+15)
regrex[i] = Rxr;
}
@ -333,14 +346,18 @@ HEADTYPE = 6; // botch
firstp = prg();
lastp = firstp;
if(INITENTRY == 0) {
INITENTRY = "_main";
if(debug['p'])
INITENTRY = "_mainp";
if(!debug['l'])
lookup(INITENTRY, 0)->type = SXREF;
} else if(!(*INITENTRY >= '0' && *INITENTRY <= '9'))
lookup(INITENTRY, 0)->type = SXREF;
if(INITENTRY == nil) {
INITENTRY = "_rt0";
a = mal(strlen(INITENTRY)+strlen(goarch)+strlen(goos)+10);
strcpy(a, INITENTRY);
strcat(a, "_");
strcat(a, goarch);
strcat(a, "_");
strcat(a, goos);
INITENTRY = a;
}
lookup(INITENTRY, 0)->type = SXREF;
while(*argv)
objfile(*argv++);
@ -349,6 +366,7 @@ HEADTYPE = 6; // botch
firstp = firstp->link;
if(firstp == P)
errorexit();
if(doexp || dlm){
EXPTAB = "_exporttab";
zerosig(EXPTAB);
@ -365,6 +383,7 @@ HEADTYPE = 6; // botch
}
export();
}
patch();
follow();
dodata();
@ -812,8 +831,8 @@ ldobj(int f, long c, char *pn)
r = bsize - bloc;
if(r < 7)
goto eof;
if(memcmp(bloc, "x86-64\n", 7) != 0) {
diag("file not x86-64: %s\n", pn);
if(memcmp(bloc, thestring, strlen(thestring)) != 0) {
diag("file not %s\n", thestring);
return;
}