Date: Fri, 28 Oct 2005 01:04:37 +0300 From: Ruslan Ermilov <ru@freebsd.org> To: Dag-Erling Sm?rgrav <des@des.no> Cc: cvs-src@freebsd.org, "Bjoern A. Zeeb" <bz@freebsd.org>, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/conf kern.post.mk kmod.mk Message-ID: <20051027220437.GA54382@ip.net.ua> In-Reply-To: <86vezi1w6l.fsf@xps.des.no> References: <200510271424.j9REOkr8091913@repoman.freebsd.org> <Pine.BSF.4.53.0510271714530.91525@e0-0.zab2.int.zabbadoz.net> <20051027174042.GK68470@ip.net.ua> <864q723dqt.fsf@xps.des.no> <20051027204816.GX68470@ip.net.ua> <86vezi1w6l.fsf@xps.des.no>
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On Thu, Oct 27, 2005 at 11:34:10PM +0200, Dag-Erling Sm?rgrav wrote:
> Ruslan Ermilov <ru@FreeBSD.org> writes:
> > sys/kern/link_elf_obj.c is what's used with current format module
> > objects on amd64. Can you see a problem there?
>=20
> Yes. AFAICT, it should select sections based on the presence of the
> SHF_ALLOC bit in sh_flags. See if the attached patch helps.
>=20
Fantastic. :-)
I was just about to test the following patch:
%%%
Index: link_elf_obj.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /home/ncvs/src/sys/kern/link_elf_obj.c,v
retrieving revision 1.89
diff -u -p -r1.89 link_elf_obj.c
--- link_elf_obj.c 28 Aug 2005 05:38:40 -0000 1.89
+++ link_elf_obj.c 27 Oct 2005 22:00:00 -0000
@@ -228,6 +228,8 @@ link_elf_link_preload(linker_class_t cls
switch (shdr[i].sh_type) {
case SHT_PROGBITS:
case SHT_NOBITS:
+ if (!(shdr[i].sh_flags & SHF_ALLOC))
+ break;
ef->nprogtab++;
break;
case SHT_SYMTAB:
@@ -298,6 +300,8 @@ link_elf_link_preload(linker_class_t cls
switch (shdr[i].sh_type) {
case SHT_PROGBITS:
case SHT_NOBITS:
+ if (!(shdr[i].sh_flags & SHF_ALLOC))
+ break;
ef->progtab[pb].addr =3D (void *)shdr[i].sh_addr;
if (shdr[i].sh_type =3D=3D SHT_PROGBITS)
ef->progtab[pb].name =3D "<<PROGBITS>>";
@@ -499,6 +503,8 @@ link_elf_load_file(linker_class_t cls, c
switch (shdr[i].sh_type) {
case SHT_PROGBITS:
case SHT_NOBITS:
+ if (!(shdr[i].sh_flags & SHF_ALLOC))
+ break;
ef->nprogtab++;
break;
case SHT_SYMTAB:
@@ -621,6 +627,8 @@ link_elf_load_file(linker_class_t cls, c
switch (shdr[i].sh_type) {
case SHT_PROGBITS:
case SHT_NOBITS:
+ if (!(shdr[i].sh_flags & SHF_ALLOC))
+ break;
alignmask =3D shdr[i].sh_addralign - 1;
mapsize +=3D alignmask;
mapsize &=3D ~alignmask;
@@ -674,6 +682,8 @@ link_elf_load_file(linker_class_t cls, c
switch (shdr[i].sh_type) {
case SHT_PROGBITS:
case SHT_NOBITS:
+ if (!(shdr[i].sh_flags & SHF_ALLOC))
+ break;
alignmask =3D shdr[i].sh_addralign - 1;
mapbase +=3D alignmask;
mapbase &=3D ~alignmask;
%%%
Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer
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