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grub: ignore missing .symtab in modules

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old binutis add an empty .symtab section at stripping
and grub check that this exists also on modules that export
no symbols.

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
Arne Fitzenreiter
2017-07-05 17:42:21 +02:00
parent 48e6650fb3
commit da504bdc57
2 changed files with 41 additions and 0 deletions
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40
src/patches/grub-2.00_ignore_missing_symtab.patch Normal file
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@@ -0,0 +1,40 @@
diff -Naur grub-2.00.org/grub-core/kern/dl.c grub-2.00/grub-core/kern/dl.c
--- grub-2.00.org/grub-core/kern/dl.c 2012-06-22 17:26:38.000000000 +0200
+++ grub-2.00/grub-core/kern/dl.c 2017-07-05 10:45:25.501645684 +0200
@@ -354,8 +354,11 @@
if (s->sh_type == SHT_SYMTAB)
break;
+ /* Module without symbol table may still be used to pull in dependencies.
+ We verify at build time that such modules do not contain any relocations
+ that may reference symbol table. */
if (i == e->e_shnum)
- return grub_error (GRUB_ERR_BAD_MODULE, N_("no symbol table"));
+ return GRUB_ERR_NONE;
#ifdef GRUB_MODULES_MACHINE_READONLY
mod->symtab = grub_malloc (s->sh_size);
diff -Naur grub-2.00.org/grub-core/kern/i386/dl.c grub-2.00/grub-core/kern/i386/dl.c
--- grub-2.00.org/grub-core/kern/i386/dl.c 2012-02-26 12:14:21.000000000 +0100
+++ grub-2.00/grub-core/kern/i386/dl.c 2017-07-05 17:01:43.333955065 +0200
@@ -55,7 +55,7 @@
break;
if (i == e->e_shnum)
- return grub_error (GRUB_ERR_BAD_MODULE, N_("no symbol table"));
+ return GRUB_ERR_NONE;
entsize = s->sh_entsize;
diff -Naur grub-2.00.org/grub-core/kern/x86_64/dl.c grub-2.00/grub-core/kern/x86_64/dl.c
--- grub-2.00.org/grub-core/kern/x86_64/dl.c 2012-02-26 12:14:56.000000000 +0100
+++ grub-2.00/grub-core/kern/x86_64/dl.c 2017-07-05 17:02:23.374574458 +0200
@@ -55,7 +55,7 @@
break;
if (i == e->e_shnum)
- return grub_error (GRUB_ERR_BAD_MODULE, N_("no symbol table"));
+ return GRUB_ERR_NONE;
entsize = s->sh_entsize;