mirror of
https://github.com/golang/go
synced 2024-11-21 21:54:40 -07:00
parent
2ef330ebd9
commit
977e19d69f
@ -17,6 +17,7 @@ OFILES=\
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obj.$O\
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optab.$O\
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pass.$O\
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pe.$O\
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span.$O\
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go.$O\
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@ -25,6 +26,7 @@ HFILES=\
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../8l/8.out.h\
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../ld/elf.h\
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../ld/macho.h\
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../ld/pe.h\
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$(TARG): $(OFILES)
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@ -32,6 +32,7 @@
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#include "../ld/lib.h"
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#include "../ld/elf.h"
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#include "../ld/macho.h"
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#include "../ld/pe.h"
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#define Dbufslop 100
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@ -531,6 +532,7 @@ asmb(void)
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case 7:
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case 8:
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case 9:
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case 10:
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v = rnd(HEADR+textsize, INITRND);
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seek(cout, v, 0);
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break;
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@ -588,6 +590,7 @@ asmb(void)
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case 7:
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case 8:
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case 9:
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case 10:
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symo = rnd(HEADR+textsize, INITRND)+datsize;
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symo = rnd(symo, INITRND);
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break;
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@ -605,6 +608,8 @@ asmb(void)
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asmlc();
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if(dlm)
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asmdyn();
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if(HEADTYPE == 10)
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strnput("", INITRND-(8+symsize+lcsize)%INITRND);
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cflush();
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seek(cout, symo, 0);
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lputl(symsize);
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@ -1018,6 +1023,10 @@ asmb(void)
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if(a+elfwriteinterp() > ELFRESERVE)
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diag("ELFRESERVE too small: %d > %d", a, ELFRESERVE);
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break;
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case 10:
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asmbpe();
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break;
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}
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cflush();
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}
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@ -33,6 +33,7 @@
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#include "../ld/lib.h"
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#include "../ld/elf.h"
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#include "../ld/macho.h"
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#include "../ld/pe.h"
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#include <ar.h>
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#ifndef DEFAULT
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@ -94,7 +95,7 @@ main(int argc, char *argv[])
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listinit();
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memset(debug, 0, sizeof(debug));
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nerrors = 0;
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outfile = "8.out";
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outfile = nil;
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HEADTYPE = -1;
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INITTEXT = -1;
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INITDAT = -1;
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@ -145,7 +146,7 @@ main(int argc, char *argv[])
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if(*argv == 0)
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usage();
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libinit();
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mywhatsys(); // get goos
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if(HEADTYPE == -1) {
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HEADTYPE = 2;
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@ -161,9 +162,21 @@ main(int argc, char *argv[])
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if(strcmp(goos, "freebsd") == 0)
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HEADTYPE = 9;
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else
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print("goos is not known: %sn", goos);
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if(strcmp(goos, "mingw") == 0)
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HEADTYPE = 10;
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else
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print("goos is not known: %s\n", goos);
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}
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if(outfile == nil) {
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if(HEADTYPE == 10)
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outfile = "8.out.exe";
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else
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outfile = "8.out";
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}
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libinit();
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switch(HEADTYPE) {
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default:
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diag("unknown -H option");
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@ -260,6 +273,16 @@ main(int argc, char *argv[])
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if(INITRND == -1)
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INITRND = 4096;
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break;
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case 10: /* PE executable */
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peinit();
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HEADR = PERESERVE;
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if(INITTEXT == -1)
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INITTEXT = PEBASE+0x1000;
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if(INITDAT == -1)
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INITDAT = 0;
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if(INITRND == -1)
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INITRND = PEALIGN;
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break;
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}
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if(INITDAT != 0 && INITRND != 0)
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print("warning: -D0x%lux is ignored because of -R0x%lux\n",
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@ -387,6 +410,8 @@ main(int argc, char *argv[])
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doprof2();
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span();
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doinit();
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if(HEADTYPE == 10)
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dope();
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asmb();
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undef();
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if(debug['v']) {
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@ -358,6 +358,27 @@ patch(void)
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s = lookup("exit", 0);
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vexit = s->value;
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for(p = firstp; p != P; p = p->link) {
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if(HEADTYPE == 10) {
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// Convert
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// op n(GS), reg
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// to
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// MOVL 0x2C(FS), reg
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// op n(reg), reg
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// The purpose of this patch is to fix some accesses
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// to extern register variables (TLS) on Windows, as
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// a different method is used to access them.
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if(p->from.type == D_INDIR+D_GS
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&& p->to.type >= D_AX && p->to.type <= D_DI) {
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q = appendp(p);
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q->from = p->from;
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q->from.type += p->to.type-D_GS;
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q->to = p->to;
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q->as = p->as;
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p->as = AMOVL;
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p->from.type = D_INDIR+D_FS;
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p->from.offset = 0x2C;
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}
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}
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if(p->as == ATEXT)
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curtext = p;
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if(p->as == ACALL || (p->as == AJMP && p->to.type != D_BRANCH)) {
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@ -575,10 +596,23 @@ dostkoff(void)
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if(pmorestack != P)
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if(!(p->from.scale & NOSPLIT)) {
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p = appendp(p); // load g into CX
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p->as = AMOVL;
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p->from.type = D_INDIR+D_GS;
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p->from.offset = tlsoffset + 0;
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p->to.type = D_CX;
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if(HEADTYPE == 10) {
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p->as = AMOVL;
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p->from.type = D_INDIR+D_FS;
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p->from.offset = 0x2c;
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p->to.type = D_CX;
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p = appendp(p);
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p->as = AMOVL;
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p->from.type = D_INDIR+D_CX;
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p->from.offset = 0;
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p->to.type = D_CX;
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} else {
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p->as = AMOVL;
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p->from.type = D_INDIR+D_GS;
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p->from.offset = tlsoffset + 0;
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p->to.type = D_CX;
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}
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if(debug['K']) {
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// 8l -K means check not only for stack
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@ -38,8 +38,11 @@
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int
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systemtype(int sys)
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{
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#ifdef __MINGW32__
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return sys&Windows;
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#else
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return sys&Plan9;
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#endif
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}
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int
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157
src/cmd/ld/pe.c
Normal file
157
src/cmd/ld/pe.c
Normal file
@ -0,0 +1,157 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// PE (Portable Executable) file writing
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// http://www.microsoft.com/whdc/system/platform/firmware/PECOFF.mspx
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#include <time.h>
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#include "l.h"
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#include "../ld/lib.h"
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#include "../ld/pe.h"
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static int pe64;
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static int nsect;
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static int sect_virt_begin;
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static int sect_raw_begin = PERESERVE;
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static IMAGE_FILE_HEADER fh;
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static IMAGE_OPTIONAL_HEADER oh;
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static IMAGE_SECTION_HEADER sh[16];
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static IMAGE_SECTION_HEADER *textsect, *datsect, *bsssect;
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static IMAGE_SECTION_HEADER*
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new_section(char *name, int size, int noraw)
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{
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IMAGE_SECTION_HEADER *h;
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if(nsect == 16) {
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diag("too many sections");
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errorexit();
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}
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h = &sh[nsect++];
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strncpy(h->Name, name, sizeof(h->Name));
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h->VirtualSize = size;
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if(!sect_virt_begin)
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sect_virt_begin = 0x1000;
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h->VirtualAddress = sect_virt_begin;
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sect_virt_begin = rnd(sect_virt_begin+size, 0x1000);
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if(!noraw) {
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h->SizeOfRawData = rnd(size, PEALIGN);
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h->PointerToRawData = sect_raw_begin;
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sect_raw_begin += h->SizeOfRawData;
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}
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return h;
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}
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void
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peinit(void)
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{
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switch(thechar) {
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// 64-bit architectures
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case '6':
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pe64 = 1;
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break;
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// 32-bit architectures
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default:
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break;
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}
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}
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static void
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pewrite(void)
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{
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int i, j;
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strnput("MZ", 0x3c);
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LPUT(0x40); // file offset to PE header
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strnput("PE", 4);
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for (i=0; i<sizeof(fh); i++)
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cput(((char*)&fh)[i]);
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for (i=0; i<sizeof(oh); i++)
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cput(((char*)&oh)[i]);
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for (i=0; i<nsect; i++)
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for (j=0; j<sizeof(sh[i]); j++)
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cput(((char*)&sh[i])[j]);
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}
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void
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dope(void)
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{
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textsect = new_section(".text", textsize, 0);
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textsect->Characteristics = IMAGE_SCN_CNT_CODE|
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IMAGE_SCN_CNT_INITIALIZED_DATA|
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IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ;
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datsect = new_section(".data", datsize, 0);
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datsect->Characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA|
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IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE;
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INITDAT = PEBASE+datsect->VirtualAddress;
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bsssect = new_section(".bss", bsssize, 1);
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bsssect->Characteristics = IMAGE_SCN_CNT_UNINITIALIZED_DATA|
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IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE;
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}
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void
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asmbpe(void)
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{
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switch(thechar) {
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default:
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diag("unknown PE architecture");
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errorexit();
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case '6':
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fh.Machine = IMAGE_FILE_MACHINE_AMD64;
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break;
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case '8':
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fh.Machine = IMAGE_FILE_MACHINE_I386;
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break;
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}
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if(!debug['s']) {
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IMAGE_SECTION_HEADER *symsect;
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symsect = new_section(".symdat", 8+symsize+lcsize, 0);
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symsect->Characteristics = IMAGE_SCN_MEM_READ|
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IMAGE_SCN_CNT_INITIALIZED_DATA;
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}
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fh.NumberOfSections = nsect;
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fh.TimeDateStamp = time(0);
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fh.SizeOfOptionalHeader = sizeof(oh);
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fh.Characteristics = IMAGE_FILE_RELOCS_STRIPPED|
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IMAGE_FILE_EXECUTABLE_IMAGE|IMAGE_FILE_DEBUG_STRIPPED;
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if(thechar == '8')
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fh.Characteristics |= IMAGE_FILE_32BIT_MACHINE;
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oh.Magic = 0x10b; // PE32
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oh.MajorLinkerVersion = 1;
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oh.MinorLinkerVersion = 0;
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oh.SizeOfCode = textsect->SizeOfRawData;
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oh.SizeOfInitializedData = datsect->SizeOfRawData;
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oh.SizeOfUninitializedData = bsssect->SizeOfRawData;
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oh.AddressOfEntryPoint = entryvalue()-PEBASE;
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oh.BaseOfCode = textsect->VirtualAddress;
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oh.BaseOfData = datsect->VirtualAddress;
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oh.ImageBase = PEBASE;
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oh.SectionAlignment = 0x00001000;
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oh.FileAlignment = PEALIGN;
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oh.MajorOperatingSystemVersion = 4;
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oh.MinorOperatingSystemVersion = 0;
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oh.MajorImageVersion = 1;
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oh.MinorImageVersion = 0;
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oh.MajorSubsystemVersion = 4;
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oh.MinorSubsystemVersion = 0;
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oh.SizeOfImage = sect_virt_begin;
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oh.SizeOfHeaders = PERESERVE;
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oh.Subsystem = 3; // WINDOWS_CUI
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oh.SizeOfStackReserve = 0x00200000;
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oh.SizeOfStackCommit = 0x00001000;
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oh.SizeOfHeapReserve = 0x00100000;
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oh.SizeOfHeapCommit = 0x00001000;
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oh.NumberOfRvaAndSizes = 16;
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pewrite();
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}
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91
src/cmd/ld/pe.h
Normal file
91
src/cmd/ld/pe.h
Normal file
@ -0,0 +1,91 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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typedef struct {
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uint16 Machine;
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uint16 NumberOfSections;
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uint32 TimeDateStamp;
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uint32 PointerToSymbolTable;
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uint32 NumberOfSymbols;
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uint16 SizeOfOptionalHeader;
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uint16 Characteristics;
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} IMAGE_FILE_HEADER;
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typedef struct {
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uint32 VirtualAddress;
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uint32 Size;
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} IMAGE_DATA_DIRECTORY;
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typedef struct {
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uint16 Magic;
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uint8 MajorLinkerVersion;
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uint8 MinorLinkerVersion;
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uint32 SizeOfCode;
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uint32 SizeOfInitializedData;
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uint32 SizeOfUninitializedData;
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uint32 AddressOfEntryPoint;
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uint32 BaseOfCode;
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uint32 BaseOfData;
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uint32 ImageBase;
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uint32 SectionAlignment;
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uint32 FileAlignment;
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uint16 MajorOperatingSystemVersion;
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uint16 MinorOperatingSystemVersion;
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uint16 MajorImageVersion;
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uint16 MinorImageVersion;
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uint16 MajorSubsystemVersion;
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uint16 MinorSubsystemVersion;
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uint32 Win32VersionValue;
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uint32 SizeOfImage;
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uint32 SizeOfHeaders;
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uint32 CheckSum;
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uint16 Subsystem;
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uint16 DllCharacteristics;
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uint32 SizeOfStackReserve;
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uint32 SizeOfStackCommit;
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uint32 SizeOfHeapReserve;
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uint32 SizeOfHeapCommit;
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uint32 LoaderFlags;
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uint32 NumberOfRvaAndSizes;
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IMAGE_DATA_DIRECTORY DataDirectory[16];
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} IMAGE_OPTIONAL_HEADER;
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typedef struct {
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uint8 Name[8];
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uint32 VirtualSize;
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uint32 VirtualAddress;
|
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uint32 SizeOfRawData;
|
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uint32 PointerToRawData;
|
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uint32 PointerToRelocations;
|
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uint32 PointerToLineNumbers;
|
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uint16 NumberOfRelocations;
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uint16 NumberOfLineNumbers;
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uint32 Characteristics;
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} IMAGE_SECTION_HEADER;
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|
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#define PERESERVE 0x400
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#define PEALIGN 0x200
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#define PEBASE 0x00400000
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enum {
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IMAGE_FILE_MACHINE_I386 = 0x14c,
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IMAGE_FILE_MACHINE_AMD64 = 0x8664,
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IMAGE_FILE_RELOCS_STRIPPED = 0x0001,
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IMAGE_FILE_EXECUTABLE_IMAGE = 0x0002,
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IMAGE_FILE_LARGE_ADDRESS_AWARE = 0x0020,
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IMAGE_FILE_32BIT_MACHINE = 0x0100,
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IMAGE_FILE_DEBUG_STRIPPED = 0x0200,
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IMAGE_SCN_CNT_CODE = 0x00000020,
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IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040,
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IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080,
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IMAGE_SCN_MEM_EXECUTE = 0x20000000,
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IMAGE_SCN_MEM_READ = 0x40000000,
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IMAGE_SCN_MEM_WRITE = 0x80000000,
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};
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|
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void peinit(void);
|
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void dope(void);
|
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void asmbpe(void);
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Reference in New Issue
Block a user