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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
commit2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac (patch)
tree9c0927ed1d540e5fd704c1f82689870786514655 /arch/arm/kernel/module.c
parent2195d2818c37bdf263865f1e9effccdd9fc5f9d4 (diff)
parent87d721ad7a37b7650dd710c88dd5c6a5bf9fe996 (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (257 commits) [ARM] Update mach-types ARM: 5636/1: Move vendor enum to AMBA include ARM: Fix pfn_valid() for sparse memory [ARM] orion5x: Add LaCie NAS 2Big Network support [ARM] pxa/sharpsl_pm: zaurus c3000 aka spitz: fix resume ARM: 5686/1: at91: Correct AC97 reset line in at91sam9263ek board ARM: 5640/1: This patch modifies the support of AC97 on the at91sam9263 ek board ARM: 5689/1: Update default config of HP Jornada 700-series machines ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem ARM: 5688/1: ks8695_serial: disable_irq() lockup ARM: 5687/1: fix an oops with highmem ARM: 5684/1: Add nuc960 platform to w90x900 ARM: 5683/1: Add nuc950 platform to w90x900 ARM: 5682/1: Add cpu.c and dev.c and modify some files of w90p910 platform ARM: 5626/1: add suspend/resume functions to amba-pl011 serial driver ARM: 5625/1: fix hard coded 4K resource size in amba bus detection MMC: MMCI: convert realview MMC to use gpiolib ARM: 5685/1: Make MMCI driver compile without gpiolib ARM: implement highpte ARM: Show FIQ in /proc/interrupts on CONFIG_FIQ ... Fix up trivial conflict in arch/arm/kernel/signal.c. It was due to the TIF_NOTIFY_RESUME addition in commit d0420c83f ("KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures") and follow-ups.
Diffstat (limited to 'arch/arm/kernel/module.c')
-rw-r--r--arch/arm/kernel/module.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index bac03c81489..f28c5e9c51e 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -102,6 +102,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
unsigned long loc;
Elf32_Sym *sym;
s32 offset;
+ u32 upper, lower, sign, j1, j2;
offset = ELF32_R_SYM(rel->r_info);
if (offset < 0 || offset > (symsec->sh_size / sizeof(Elf32_Sym))) {
@@ -184,6 +185,58 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
(offset & 0x0fff);
break;
+ case R_ARM_THM_CALL:
+ case R_ARM_THM_JUMP24:
+ upper = *(u16 *)loc;
+ lower = *(u16 *)(loc + 2);
+
+ /*
+ * 25 bit signed address range (Thumb-2 BL and B.W
+ * instructions):
+ * S:I1:I2:imm10:imm11:0
+ * where:
+ * S = upper[10] = offset[24]
+ * I1 = ~(J1 ^ S) = offset[23]
+ * I2 = ~(J2 ^ S) = offset[22]
+ * imm10 = upper[9:0] = offset[21:12]
+ * imm11 = lower[10:0] = offset[11:1]
+ * J1 = lower[13]
+ * J2 = lower[11]
+ */
+ sign = (upper >> 10) & 1;
+ j1 = (lower >> 13) & 1;
+ j2 = (lower >> 11) & 1;
+ offset = (sign << 24) | ((~(j1 ^ sign) & 1) << 23) |
+ ((~(j2 ^ sign) & 1) << 22) |
+ ((upper & 0x03ff) << 12) |
+ ((lower & 0x07ff) << 1);
+ if (offset & 0x01000000)
+ offset -= 0x02000000;
+ offset += sym->st_value - loc;
+
+ /* only Thumb addresses allowed (no interworking) */
+ if (!(offset & 1) ||
+ offset <= (s32)0xff000000 ||
+ offset >= (s32)0x01000000) {
+ printk(KERN_ERR
+ "%s: relocation out of range, section "
+ "%d reloc %d sym '%s'\n", module->name,
+ relindex, i, strtab + sym->st_name);
+ return -ENOEXEC;
+ }
+
+ sign = (offset >> 24) & 1;
+ j1 = sign ^ (~(offset >> 23) & 1);
+ j2 = sign ^ (~(offset >> 22) & 1);
+ *(u16 *)loc = (u16)((upper & 0xf800) | (sign << 10) |
+ ((offset >> 12) & 0x03ff));
+ *(u16 *)(loc + 2) = (u16)((lower & 0xd000) |
+ (j1 << 13) | (j2 << 11) |
+ ((offset >> 1) & 0x07ff));
+ upper = *(u16 *)loc;
+ lower = *(u16 *)(loc + 2);
+ break;
+
default:
printk(KERN_ERR "%s: unknown relocation: %u\n",
module->name, ELF32_R_TYPE(rel->r_info));