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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-25 20:20:03 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-25 20:20:03 -0700
commit8483ca3c99559027a3741af7f56f6b36887f7fd5 (patch)
tree4c09e045467c4dd174508ffd9b55a857ee139869 /arch/powerpc/kernel/vdso.c
parentede847c406054ba2a1ef2d165d3fd9f8e2b8d1bc (diff)
parent190a24f5605d95b786c92280bf7a51ebef43f29f (diff)
Merge branch 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Make sure __cpu_preinit_ppc970 gets called on 970GX processors [POWERPC] Fix CHRP platforms with only 8259 [POWERPC] IPIC: Fix spinlock recursion in set_irq_handler [POWERPC] Fix the UCC rx/tx clock of QE [POWERPC] cell: update defconfig [POWERPC] spufs: fix another off-by-one bug in spufs_mbox_read [POWERPC] spufs: fix signal2 file to report signal2 [POWERPC] Fix device_is_compatible() const warning [POWERPC] Cell timebase bug workaround [POWERPC] Support feature fixups in modules [POWERPC] Support feature fixups in vdso's [POWERPC] Support nested cpu feature sections [POWERPC] Consolidate feature fixup code [POWERPC] Fix hang in start_ldr if _end or _edata is unaligned [POWERPC] Fix spelling errors in ucc_fast.c and ucc_slow.c [POWERPC] Don't require execute perms on wrapper when building zImage.initrd [POWERPC] Add 970GX cputable entry [POWERPC] Fix build breakage with CONFIG_PPC32 [POWERPC] Fix compiler warning message on get_property call [POWERPC] Simplify stolen time calculation
Diffstat (limited to 'arch/powerpc/kernel/vdso.c')
-rw-r--r--arch/powerpc/kernel/vdso.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 1a7e19cdab3..c913ad5cad2 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -36,6 +36,8 @@
#include <asm/vdso.h>
#include <asm/vdso_datapage.h>
+#include "setup.h"
+
#undef DEBUG
#ifdef DEBUG
@@ -586,6 +588,43 @@ static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32,
return 0;
}
+
+static __init int vdso_fixup_features(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64)
+{
+ void *start32;
+ unsigned long size32;
+
+#ifdef CONFIG_PPC64
+ void *start64;
+ unsigned long size64;
+
+ start64 = find_section64(v64->hdr, "__ftr_fixup", &size64);
+ if (start64)
+ do_feature_fixups(cur_cpu_spec->cpu_features,
+ start64, start64 + size64);
+
+ start64 = find_section64(v64->hdr, "__fw_ftr_fixup", &size64);
+ if (start64)
+ do_feature_fixups(powerpc_firmware_features,
+ start64, start64 + size64);
+#endif /* CONFIG_PPC64 */
+
+ start32 = find_section32(v32->hdr, "__ftr_fixup", &size32);
+ if (start32)
+ do_feature_fixups(cur_cpu_spec->cpu_features,
+ start32, start32 + size32);
+
+#ifdef CONFIG_PPC64
+ start32 = find_section32(v32->hdr, "__fw_ftr_fixup", &size32);
+ if (start32)
+ do_feature_fixups(powerpc_firmware_features,
+ start32, start32 + size32);
+#endif /* CONFIG_PPC64 */
+
+ return 0;
+}
+
static __init int vdso_fixup_alt_funcs(struct lib32_elfinfo *v32,
struct lib64_elfinfo *v64)
{
@@ -634,6 +673,9 @@ static __init int vdso_setup(void)
if (vdso_fixup_datapage(&v32, &v64))
return -1;
+ if (vdso_fixup_features(&v32, &v64))
+ return -1;
+
if (vdso_fixup_alt_funcs(&v32, &v64))
return -1;
@@ -714,6 +756,7 @@ void __init vdso_init(void)
* Setup the syscall map in the vDOS
*/
vdso_setup_syscall_map();
+
/*
* Initialize the vDSO images in memory, that is do necessary
* fixups of vDSO symbols, locate trampolines, etc...