From: Peter Bergner <bergner@vnet.ibm.com>
Date: Tue, 11 Oct 2005 16:28:24 +0000 (-0700)
Subject: [PATCH] ppc64: Add R_PPC64_TOC16 module reloc
X-Git-Tag: v2.6.14-rc5~77
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9149ccfa3571eaa4a4b444777d67fc4ed3ebcf27;p=linux-2.6

[PATCH] ppc64: Add R_PPC64_TOC16 module reloc

Newer gcc's are generating this relocation, so the module loader needs to
handle it.

Signed-off-by: Peter Bergner <bergner@vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/ppc64/kernel/module.c b/arch/ppc64/kernel/module.c
index c683bf88e6..928b8581fc 100644
--- a/arch/ppc64/kernel/module.c
+++ b/arch/ppc64/kernel/module.c
@@ -341,6 +341,19 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 			*(unsigned long *)location = my_r2(sechdrs, me);
 			break;
 
+		case R_PPC64_TOC16:
+			/* Subtact TOC pointer */
+			value -= my_r2(sechdrs, me);
+			if (value + 0x8000 > 0xffff) {
+				printk("%s: bad TOC16 relocation (%lu)\n",
+				       me->name, value);
+				return -ENOEXEC;
+			}
+			*((uint16_t *) location)
+				= (*((uint16_t *) location) & ~0xffff)
+				| (value & 0xffff);
+			break;
+
 		case R_PPC64_TOC16_DS:
 			/* Subtact TOC pointer */
 			value -= my_r2(sechdrs, me);