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[kernel] make 64-bits MIPS kernel compile again on arch/mips/kernel/module.c

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17147 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian 2009-08-06 14:06:26 +00:00
parent a2b578fb01
commit 2b27796714
1 changed files with 36 additions and 24 deletions
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60
target/linux/generic-2.6/patches-2.6.30/027-mips_module_reloc.patch
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@ -1,6 +1,8 @@
--- a/arch/mips/Makefile Index: linux-2.6.30.4/arch/mips/Makefile
+++ b/arch/mips/Makefile ===================================================================
@@ -83,7 +83,7 @@ all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64 --- linux-2.6.30.4.orig/arch/mips/Makefile 2009-08-06 16:02:25.000000000 +0200
+++ linux-2.6.30.4/arch/mips/Makefile 2009-08-06 16:02:37.000000000 +0200
@@ -83,7 +83,7 @@
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
@ -9,9 +11,11 @@
cflags-y += -ffreestanding cflags-y += -ffreestanding
--- a/arch/mips/include/asm/module.h Index: linux-2.6.30.4/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h ===================================================================
@@ -9,6 +9,11 @@ struct mod_arch_specific { --- linux-2.6.30.4.orig/arch/mips/include/asm/module.h 2009-08-06 16:02:25.000000000 +0200
+++ linux-2.6.30.4/arch/mips/include/asm/module.h 2009-08-06 16:02:37.000000000 +0200
@@ -9,6 +9,11 @@
struct list_head dbe_list; struct list_head dbe_list;
const struct exception_table_entry *dbe_start; const struct exception_table_entry *dbe_start;
const struct exception_table_entry *dbe_end; const struct exception_table_entry *dbe_end;
@ -23,9 +27,11 @@
}; };
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */ typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
--- a/arch/mips/kernel/module.c Index: linux-2.6.30.4/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c ===================================================================
@@ -43,6 +43,114 @@ static struct mips_hi16 *mips_hi16_list; --- linux-2.6.30.4.orig/arch/mips/kernel/module.c 2009-08-06 16:02:36.000000000 +0200
+++ linux-2.6.30.4/arch/mips/kernel/module.c 2009-08-06 16:03:15.000000000 +0200
@@ -43,6 +43,116 @@
static LIST_HEAD(dbe_list); static LIST_HEAD(dbe_list);
static DEFINE_SPINLOCK(dbe_lock); static DEFINE_SPINLOCK(dbe_lock);
@ -35,7 +41,7 @@
+ * physically mapped memory to put the module into. + * physically mapped memory to put the module into.
+ */ + */
+static unsigned int +static unsigned int
+get_plt_size(const Elf32_Ehdr *hdr, const Elf32_Shdr *sechdrs, +get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
+ const char *secstrings, unsigned int symindex, bool is_init) + const char *secstrings, unsigned int symindex, bool is_init)
+{ +{
+ unsigned long ret = 0; + unsigned long ret = 0;
@ -103,6 +109,7 @@
+ return ret; + return ret;
+} +}
+ +
+#ifndef MODULE_START
+static void *alloc_phys(unsigned long size) +static void *alloc_phys(unsigned long size)
+{ +{
+ unsigned order; + unsigned order;
@ -124,6 +131,7 @@
+ +
+ return page_address(page); + return page_address(page);
+} +}
+#endif
+ +
+static void free_phys(void *ptr, unsigned long size) +static void free_phys(void *ptr, unsigned long size)
+{ +{
@ -140,7 +148,7 @@
void *module_alloc(unsigned long size) void *module_alloc(unsigned long size)
{ {
#ifdef MODULE_START #ifdef MODULE_START
@@ -58,16 +166,41 @@ void *module_alloc(unsigned long size) @@ -58,16 +168,45 @@
return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL); return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
#else #else
@ -159,14 +167,18 @@
+ return vmalloc(size); + return vmalloc(size);
+ +
+ return ptr; + return ptr;
+#endif
+}
+
+static inline bool is_phys_addr(void *ptr)
+{
+#ifdef CONFIG_64BIT
+ return (KSEGX((unsigned long)ptr) == CKSEG0);
+#else
+ return (KSEGX(ptr) == KSEG0);
#endif #endif
} }
+static inline bool is_phys_addr(void *ptr)
+{
+ return (KSEGX(ptr) == KSEG0);
+}
+
/* Free memory returned from module_alloc */ /* Free memory returned from module_alloc */
void module_free(struct module *mod, void *module_region) void module_free(struct module *mod, void *module_region)
{ {
@ -184,7 +196,7 @@
/* FIXME: If module_region == mod->init_region, trim exception /* FIXME: If module_region == mod->init_region, trim exception
table entries. */ table entries. */
} }
@@ -75,6 +208,24 @@ void module_free(struct module *mod, voi @@ -75,6 +214,24 @@
int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
char *secstrings, struct module *mod) char *secstrings, struct module *mod)
{ {
@ -209,7 +221,7 @@
return 0; return 0;
} }
@@ -97,27 +248,41 @@ static int apply_r_mips_32_rela(struct m @@ -97,27 +254,41 @@
return 0; return 0;
} }
@ -234,14 +246,14 @@
+ /* adjust carry for addiu */ + /* adjust carry for addiu */
+ if (v & 0x00008000) + if (v & 0x00008000)
+ v += 0x10000; + v += 0x10000;
+
- *location = (*location & ~0x03ffffff) |
- ((*location + (v >> 2)) & 0x03ffffff);
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */ + tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */ + tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
+ tramp[2] = 0x03200008; /* jr t9 */ + tramp[2] = 0x03200008; /* jr t9 */
+ tramp[3] = 0x00000000; /* nop */ + tramp[3] = 0x00000000; /* nop */
+
- *location = (*location & ~0x03ffffff) |
- ((*location + (v >> 2)) & 0x03ffffff);
+ return (Elf_Addr) tramp; + return (Elf_Addr) tramp;
+} +}
+ +
@ -265,7 +277,7 @@
{ {
if (v % 4) { if (v % 4) {
printk(KERN_ERR "module %s: dangerous relocation\n", me->name); printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
@@ -125,17 +290,31 @@ static int apply_r_mips_26_rela(struct m @@ -125,17 +296,31 @@
} }
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
@ -300,7 +312,7 @@
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v) static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
{ {
struct mips_hi16 *n; struct mips_hi16 *n;
@@ -400,11 +579,23 @@ int module_finalize(const Elf_Ehdr *hdr, @@ -400,11 +585,23 @@
list_add(&me->arch.dbe_list, &dbe_list); list_add(&me->arch.dbe_list, &dbe_list);
spin_unlock_irq(&dbe_lock); spin_unlock_irq(&dbe_lock);
} }