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grub2/grub2-ppc64le-20-.TOC.-symbol-is-special-in-ppc64le-.-It-maps-to-the-.patch
Dr. Werner Fink b05b350108 Accepting request 228323 from home:michael-chang:SLE12
- snapper rollback support (fate#317062)
  * add btrfs_follow_default.patch
  * add suse_btrfs_grub2_install.sh
  * add 80_suse_btrfs_snapshot
  * refresh grub2-snapper-plugin.sh

- add grub2-x86_64-xen subpackage (bnc#863821)

- ieee1275: check for IBM pseries emulated machine (bnc#869964) 
- added patches:
  * grub2-ppc64-build-ppc64-32bit.patch

- Build ppc64 as 32bit
- added patches:
  * grub2-ppc64-build-ppc64-32bit.patch

- Rename PowerPC patches so it will have architecture in it's name 
- added patches:
  * grub2-ppc64le-01-Add-Little-Endian-support-for-Power64-to-the-build.patch
  * grub2-ppc64le-02-Build-grub-as-O1-until-we-add-savegpr-and-restgpr-ro.patch
  * grub2-ppc64le-03-disable-creation-of-vsx-and-altivec-instructions.patch
  * grub2-ppc64le-04-powerpc64-LE-s-linker-knows-how-to-handle-the-undefi.patch
  * grub2-ppc64le-05-grub-install-can-now-recognize-and-install-a-LE-grub.patch
  * grub2-ppc64le-06-set-the-ABI-version-to-0x02-in-the-e_flag-of-the-PPC.patch
  * grub2-ppc64le-07-Add-IEEE1275_ADDR-helper.patch
  * grub2-ppc64le-08-Fix-some-more-warnings-when-casting.patch
  * grub2-ppc64le-09-Add-powerpc64-types.patch
  * grub2-ppc64le-10-powerpc64-is-not-necessarily-BigEndian-anymore.patch
  * grub2-ppc64le-11-Fix-warnings-when-building-powerpc-linux-loader-64bi.patch
  * grub2-ppc64le-12-GRUB_ELF_R_PPC_-processing-is-applicable-only-for-32.patch

OBS-URL: https://build.opensuse.org/request/show/228323
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=81
2014-03-31 19:51:24 +00:00

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2.1 KiB
Diff

From 8212195e18301ed18a060722e2b5933d2052b2c1 Mon Sep 17 00:00:00 2001
From: Ram Pai <linuxram@us.ibm.com>
Date: Tue, 25 Feb 2014 18:59:13 +0000
Subject: [PATCH 20/23] handle .TOC. symbol while loading
.TOC. symbol is special in ppc64le . It maps to the
address of the .toc section.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
---
grub-core/kern/dl.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/grub-core/kern/dl.c b/grub-core/kern/dl.c
index de2d0ed..ce2ff38 100644
--- a/grub-core/kern/dl.c
+++ b/grub-core/kern/dl.c
@@ -343,6 +343,26 @@ grub_dl_load_segments (grub_dl_t mod, const Elf_Ehdr *e)
return GRUB_ERR_NONE;
}
+#ifdef __powerpc64le__
+static int
+grub_dl_find_section_index (Elf_Ehdr *e, const char *name)
+{
+ Elf_Shdr *s;
+ const char *str;
+ unsigned i;
+
+ s = (Elf_Shdr *) ((char *) e + e->e_shoff + e->e_shstrndx * e->e_shentsize);
+ str = (char *) e + s->sh_offset;
+
+ for (i = 0, s = (Elf_Shdr *) ((char *) e + e->e_shoff);
+ i < e->e_shnum;
+ i++, s = (Elf_Shdr *) ((char *) s + e->e_shentsize))
+ if (grub_strcmp (str + s->sh_name, name) == 0)
+ return i;
+ return -1;
+}
+#endif
+
static grub_err_t
grub_dl_resolve_symbols (grub_dl_t mod, Elf_Ehdr *e)
{
@@ -392,7 +412,19 @@ grub_dl_resolve_symbols (grub_dl_t mod, Elf_Ehdr *e)
/* Resolve a global symbol. */
if (sym->st_name != 0 && sym->st_shndx == 0)
{
- grub_symbol_t nsym = grub_dl_resolve_symbol (name);
+ grub_symbol_t nsym;
+
+#ifdef __powerpc64le__
+ if (grub_strcmp(name, ".TOC.") == 0) {
+ int j = grub_dl_find_section_index (e, ".toc");
+ if (j < 0)
+ return grub_error (GRUB_ERR_BAD_MODULE,
+ N_("section '.toc' not found"), name);
+ sym->st_value = (Elf_Addr) grub_dl_get_section_addr (mod, j);
+ break;
+ }
+#endif
+ nsym = grub_dl_resolve_symbol (name);
if (! nsym)
return grub_error (GRUB_ERR_BAD_MODULE,
N_("symbol `%s' not found"), name);
--
1.8.3.1