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Remove reading of symbols from a.out loaded files. Since we are tight

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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@
This commit is contained in:
imp 2011-02-16 18:05:10 +00:00
parent f09038c073
commit eb475f223e
1 changed files with 1 additions and 18 deletions
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19
sys/boot/i386/boot2/boot2.c
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@ -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),