sanchayanmaity/xv6-cs450
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Make elf proghdr fields match what objdump prints

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This commit is contained in:
Frans Kaashoek 2011-08-17 20:23:36 -04:00
parent 5f069dcf2f
commit fa81545f1c
3 changed files with 7 additions and 7 deletions
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4
bootmain.c
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@ -35,8 +35,8 @@ bootmain(void)
ph = (struct proghdr*)((uchar*)elf + elf->phoff);
eph = ph + elf->phnum;
for(; ph < eph; ph++){
pa = (uchar*)ph->pa;
readseg(pa, ph->filesz, ph->offset);
pa = (uchar*)ph->paddr;
readseg(pa, ph->filesz, ph->off);
if(ph->memsz > ph->filesz)
stosb(pa + ph->filesz, 0, ph->memsz - ph->filesz);
}

6
elf.h
View file

@ -24,9 +24,9 @@ struct elfhdr {
// Program section header
struct proghdr {
uint type;
uint offset;
uint va;
uint pa;
uint off;
uint vaddr;
uint paddr;
uint filesz;
uint memsz;
uint flags;

4
exec.c
View file

@ -41,9 +41,9 @@ exec(char *path, char **argv)
continue;
if(ph.memsz < ph.filesz)
goto bad;
if((sz = allocuvm(pgdir, sz, ph.va + ph.memsz)) == 0)
if((sz = allocuvm(pgdir, sz, ph.vaddr + ph.memsz)) == 0)
goto bad;
if(loaduvm(pgdir, (char*)ph.va, ip, ph.offset, ph.filesz) < 0)
if(loaduvm(pgdir, (char*)ph.vaddr, ip, ph.off, ph.filesz) < 0)
goto bad;
}
iunlockput(ip);