Author: marius
Date: Tue Jul 26 13:22:12 2011
New Revision: 224432
URL: http://svn.freebsd.org/changeset/base/224432
Log:
MFC: r218745
Remove reading of symbols from a.out loaded files. Since we are tight
on space for clang and a.out support is only needed for /boot/loader,
they are excess bytes that serve no useful purpose other than to
support really old kernels (FreeBSD < 3.2 or so). Prefer clang
support over support for these old kernels and remove this code. We
gain about 100 bytes of space this way.
Reviewed by: rdivacky@
Modified:
stable/8/sys/boot/i386/boot2/boot2.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/geom/label/ (props changed)
Modified: stable/8/sys/boot/i386/boot2/boot2.c
==============================================================================
--- stable/8/sys/boot/i386/boot2/boot2.c Tue Jul 26 13:19:57 2011
(r224431)
+++ stable/8/sys/boot/i386/boot2/boot2.c Tue Jul 26 13:22:12 2011
(r224432)
@@ -347,23 +347,6 @@ load(void)
p += roundup2(hdr.ex.a_text, PAGE_SIZE);
if (xfsread(ino, p, hdr.ex.a_data))
return;
- p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE);
- bootinfo.bi_symtab = VTOP(p);
- *(uint32_t*)p = hdr.ex.a_syms;
- p += sizeof(hdr.ex.a_syms);
- if (hdr.ex.a_syms) {
- if (xfsread(ino, p, hdr.ex.a_syms))
- return;
- p += hdr.ex.a_syms;
- if (xfsread(ino, p, sizeof(int)))
- return;
- x = *(uint32_t *)p;
- p += sizeof(int);
- x -= sizeof(int);
- if (xfsread(ino, p, x))
- return;
- p += x;
- }
} else {
fs_off = hdr.eh.e_phoff;
for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
@@ -395,8 +378,8 @@ load(void)
}
}
addr = hdr.eh.e_entry & 0xffffff;
+ bootinfo.bi_esymtab = VTOP(p);
}
- bootinfo.bi_esymtab = VTOP(p);
bootinfo.bi_kernelname = VTOP(kname);
bootinfo.bi_bios_dev = dsk.drive;
__exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK),
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