From: Jackie Huang <jackie.hu...@windriver.com>
-mcmodel=large is not supported by gcc with version lower
than 4.4, but we don't need to use memory over 4GiB, so add
a patch to allow compilation without large model support.
Signed-off-by: Jackie Huang <jackie.hu...@windriver.com>
---
...allow-a-compilation-without-mcmodel-large.patch | 69 ++++++++++++++++++++++
meta/recipes-bsp/grub/grub-efi_2.00.bb | 1 +
2 files changed, 70 insertions(+)
create mode 100644
meta/recipes-bsp/grub/files/grub-efi-allow-a-compilation-without-mcmodel-large.patch
diff --git
a/meta/recipes-bsp/grub/files/grub-efi-allow-a-compilation-without-mcmodel-large.patch
b/meta/recipes-bsp/grub/files/grub-efi-allow-a-compilation-without-mcmodel-large.patch
new file mode 100644
index 0000000..b2be74a
--- /dev/null
+++
b/meta/recipes-bsp/grub/files/grub-efi-allow-a-compilation-without-mcmodel-large.patch
@@ -0,0 +1,69 @@
+From 0cea0e4266214da1f11e812834f5d5c47a6e04e6 Mon Sep 17 00:00:00 2001
+From: Jackie Huang <jackie.hu...@windriver.com>
+Date: Tue, 5 Nov 2013 07:23:32 -0500
+Subject: [PATCH] Allow a compilation without -mcmodel=large
+
+* kern/efi/mm.c (grub_efi_allocate_pages): don't allocate >4GiB
+ when compiled without -mcmodel=large
+ (filter_memory_map): remove memory post 4 GiB when compiled
+ without -mcmodel=large
+* configure.ac: add -DMCMODEL_SMALL=1 to TARGET_CFLAGS when
+ -mcmodel=large isn't supported
+
+Upstream-Status: Inappropriate [configuration]
+
+Signed-off-by: Jackie Huang <jackie.hu...@windriver.com>
+---
+ configure.ac | 4 +++-
+ grub-core/kern/efi/mm.c | 6 +++---
+ 2 files changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 319d063..ee72fee 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -567,7 +567,9 @@ if test "$target_cpu"-"$platform" = x86_64-efi; then
+ [grub_cv_cc_mcmodel=no])
+ ])
+ if test "x$grub_cv_cc_mcmodel" = xno; then
+- AC_MSG_ERROR([-mcmodel=large not supported. Upgrade your gcc.])
++ CFLAGS="$SAVED_CFLAGS -m64 -DMCMODEL_SMALL=1"
++ TARGET_CFLAGS="$TARGET_CFLAGS -DMCMODEL_SMALL=1"
++ AC_MSG_WARN([-mcmodel=large not supported. You won't be able to use the
memory over 4GiB. Upgrade your gcc.])
+ else
+ TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
+ fi
+diff --git a/grub-core/kern/efi/mm.c b/grub-core/kern/efi/mm.c
+index a2edc84..c67dd13 100644
+--- a/grub-core/kern/efi/mm.c
++++ b/grub-core/kern/efi/mm.c
+@@ -62,7 +62,7 @@ grub_efi_allocate_pages (grub_efi_physical_address_t address,
+ return 0;
+ #endif
+
+-#if 1
++#if defined (MCMODEL_SMALL)
+ if (address == 0)
+ {
+ type = GRUB_EFI_ALLOCATE_MAX_ADDRESS;
+@@ -305,7 +305,7 @@ filter_memory_map (grub_efi_memory_descriptor_t
*memory_map,
+ desc = NEXT_MEMORY_DESCRIPTOR (desc, desc_size))
+ {
+ if (desc->type == GRUB_EFI_CONVENTIONAL_MEMORY
+-#if 1
++#if defined (MCMODEL_SMALL)
+ && desc->physical_start <= 0xffffffff
+ #endif
+ && desc->physical_start + PAGES_TO_BYTES (desc->num_pages) > 0x100000
+@@ -321,7 +321,7 @@ filter_memory_map (grub_efi_memory_descriptor_t
*memory_map,
+ desc->physical_start = 0x100000;
+ }
+
+-#if 1
++#if defined (MCMODEL_SMALL)
+ if (BYTES_TO_PAGES (filtered_desc->physical_start)
+ + filtered_desc->num_pages
+ > BYTES_TO_PAGES (0x100000000LL))
+--
+1.7.1
+
diff --git a/meta/recipes-bsp/grub/grub-efi_2.00.bb
b/meta/recipes-bsp/grub/grub-efi_2.00.bb
index 2fe688c..deb9514 100644
--- a/meta/recipes-bsp/grub/grub-efi_2.00.bb
+++ b/meta/recipes-bsp/grub/grub-efi_2.00.bb
@@ -27,6 +27,7 @@ SRC_URI = "ftp://ftp.gnu.org/gnu/grub/grub-${PV}.tar.gz \
file://grub-no-unused-result.patch \
file://grub-2.00-ignore-gnulib-gets-stupidity.patch \
file://fix-issue-with-flex-2.5.37.patch \
+ file://grub-efi-allow-a-compilation-without-mcmodel-large.patch \
"
SRC_URI[md5sum] = "e927540b6eda8b024fb0391eeaa4091c"
SRC_URI[sha256sum] =
"65b39a0558f8c802209c574f4d02ca263a804e8a564bc6caf1cd0fd3b3cc11e3"
--
1.8.3
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