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-rw-r--r--arch/sparc/include/asm/atomic_32.h2
-rw-r--r--arch/sparc/include/asm/atomic_64.h2
-rw-r--r--arch/sparc/include/asm/bitsperlong.h13
-rw-r--r--arch/sparc/include/asm/mman.h2
-rw-r--r--arch/sparc/include/asm/page_32.h2
-rw-r--r--arch/sparc/include/asm/page_64.h2
-rw-r--r--arch/sparc/include/asm/signal.h2
-rw-r--r--arch/sparc/include/asm/types.h4
-rw-r--r--arch/sparc/include/asm/uaccess_32.h3
-rw-r--r--arch/sparc/include/asm/uaccess_64.h2
-rw-r--r--arch/sparc/kernel/module.c2
-rw-r--r--arch/sparc/mm/extable.c29
12 files changed, 52 insertions, 13 deletions
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index bb91b1248cd1..f0d343c3b956 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -161,5 +161,5 @@ static inline int __atomic24_sub(int i, atomic24_t *v)
#endif /* !(__KERNEL__) */
-#include <asm-generic/atomic.h>
+#include <asm-generic/atomic-long.h>
#endif /* !(__ARCH_SPARC_ATOMIC__) */
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index a0a706492696..f2e48009989e 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -114,5 +114,5 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
#define smp_mb__before_atomic_inc() barrier()
#define smp_mb__after_atomic_inc() barrier()
-#include <asm-generic/atomic.h>
+#include <asm-generic/atomic-long.h>
#endif /* !(__ARCH_SPARC64_ATOMIC__) */
diff --git a/arch/sparc/include/asm/bitsperlong.h b/arch/sparc/include/asm/bitsperlong.h
new file mode 100644
index 000000000000..40dcaa3aaa56
--- /dev/null
+++ b/arch/sparc/include/asm/bitsperlong.h
@@ -0,0 +1,13 @@
+#ifndef __ASM_ALPHA_BITSPERLONG_H
+#define __ASM_ALPHA_BITSPERLONG_H
+
+#if defined(__sparc__) && defined(__arch64__)
+#define __BITS_PER_LONG 64
+#else
+#define __BITS_PER_LONG 32
+#endif
+
+#include <asm-generic/bitsperlong.h>
+
+#endif /* __ASM_ALPHA_BITSPERLONG_H */
+
diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h
index fdfbbf0a4736..988192e8e956 100644
--- a/arch/sparc/include/asm/mman.h
+++ b/arch/sparc/include/asm/mman.h
@@ -1,7 +1,7 @@
#ifndef __SPARC_MMAN_H__
#define __SPARC_MMAN_H__
-#include <asm-generic/mman.h>
+#include <asm-generic/mman-common.h>
/* SunOS'ified... */
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index d1806edc0958..f72080bdda94 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -152,6 +152,6 @@ extern unsigned long pfn_base;
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#include <asm-generic/memory_model.h>
-#include <asm-generic/page.h>
+#include <asm-generic/getorder.h>
#endif /* _SPARC_PAGE_H */
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 4274ed13ddb2..f0d09b401036 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -132,6 +132,6 @@ typedef struct page *pgtable_t;
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-#include <asm-generic/page.h>
+#include <asm-generic/getorder.h>
#endif /* _SPARC64_PAGE_H */
diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h
index cba45206b7f2..e49b828a2471 100644
--- a/arch/sparc/include/asm/signal.h
+++ b/arch/sparc/include/asm/signal.h
@@ -176,7 +176,7 @@ struct sigstack {
#define SA_STATIC_ALLOC 0x8000
#endif
-#include <asm-generic/signal.h>
+#include <asm-generic/signal-defs.h>
struct __new_sigaction {
__sighandler_t sa_handler;
diff --git a/arch/sparc/include/asm/types.h b/arch/sparc/include/asm/types.h
index 2237118825d0..de671d73baed 100644
--- a/arch/sparc/include/asm/types.h
+++ b/arch/sparc/include/asm/types.h
@@ -21,8 +21,6 @@ typedef unsigned short umode_t;
#ifdef __KERNEL__
-#define BITS_PER_LONG 64
-
#ifndef __ASSEMBLY__
/* Dma addresses come in generic and 64-bit flavours. */
@@ -46,8 +44,6 @@ typedef unsigned short umode_t;
#ifdef __KERNEL__
-#define BITS_PER_LONG 32
-
#ifndef __ASSEMBLY__
typedef u32 dma_addr_t;
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 47d5619d43fa..8303ac481034 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -17,6 +17,9 @@
#ifndef __ASSEMBLY__
+#define ARCH_HAS_SORT_EXTABLE
+#define ARCH_HAS_SEARCH_EXTABLE
+
/* Sparc is not segmented, however we need to be able to fool access_ok()
* when doing system calls from kernel mode legitimately.
*
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index c64e767a3e4b..a38c03238918 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -12,7 +12,7 @@
#include <asm/asi.h>
#include <asm/system.h>
#include <asm/spitfire.h>
-#include <asm-generic/uaccess.h>
+#include <asm-generic/uaccess-unaligned.h>
#endif
#ifndef __ASSEMBLY__
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 90273765e81f..0ee642f63234 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -75,8 +75,6 @@ void *module_alloc(unsigned long size)
void module_free(struct module *mod, void *module_region)
{
vfree(module_region);
- /* FIXME: If module_region == mod->init_region, trim exception
- table entries. */
}
/* Make generic code ignore STT_REGISTER dummy undefined symbols. */
diff --git a/arch/sparc/mm/extable.c b/arch/sparc/mm/extable.c
index 16cc28935e39..a61c349448e1 100644
--- a/arch/sparc/mm/extable.c
+++ b/arch/sparc/mm/extable.c
@@ -28,6 +28,10 @@ search_extable(const struct exception_table_entry *start,
* word 3: last insn address + 4 bytes
* word 4: fixup code address
*
+ * Deleted entries are encoded as:
+ * word 1: unused
+ * word 2: -1
+ *
* See asm/uaccess.h for more details.
*/
@@ -39,6 +43,10 @@ search_extable(const struct exception_table_entry *start,
continue;
}
+ /* A deleted entry; see trim_init_extable */
+ if (walk->fixup == -1)
+ continue;
+
if (walk->insn == value)
return walk;
}
@@ -57,6 +65,27 @@ search_extable(const struct exception_table_entry *start,
return NULL;
}
+#ifdef CONFIG_MODULES
+/* We could memmove them around; easier to mark the trimmed ones. */
+void trim_init_extable(struct module *m)
+{
+ unsigned int i;
+ bool range;
+
+ for (i = 0; i < m->num_exentries; i += range ? 2 : 1) {
+ range = m->extable[i].fixup == 0;
+
+ if (within_module_init(m->extable[i].insn, m)) {
+ m->extable[i].fixup = -1;
+ if (range)
+ m->extable[i+1].fixup = -1;
+ }
+ if (range)
+ i++;
+ }
+}
+#endif /* CONFIG_MODULES */
+
/* Special extable search, which handles ranges. Returns fixup */
unsigned long search_extables_range(unsigned long addr, unsigned long *g2)
{
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.