Detect section mismatches in thumb relocations

Message ID	1391193193-28572-1-git-send-email-dave.long@linaro.org
State	Accepted
Commit	c9698e5cd6ad1ff2844bc44fabddc0f2e0562047
Headers	show Return-Path: <patchwork-forward+bncBC22DG64VQOBB3GYV6LQKGQEK6WBBWQ@linaro.org> MIME-Version: 1.0 Received-SPF: neutral (google.com: 209.85.212.44 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) client-ip=209.85.212.44; Received-SPF: neutral (google.com: 209.85.216.180 is neither permitted nor denied by best guess record for domain of dave.long@linaro.org) client-ip=209.85.216.180; From: David Long <dave.long@linaro.org> To: linux-arm-kernel@lists.infradead.org Cc: Rusty Russell <rusty@rustcorp.com.au>, James Hogan <james.hogan@imgtec.com>, Andi Kleen <ak@linux.intel.com>, Paul Gortmaker <paul.gortmaker@windriver.com>, Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org Subject: [PATCH] Detect section mismatches in thumb relocations Date: Fri, 31 Jan 2014 13:33:13 -0500 Message-Id: <1391193193-28572-1-git-send-email-dave.long@linaro.org> Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org

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1391193193-28572-1-git-send-email-dave.long@linaro.org

State

Accepted

Commit

c9698e5cd6ad1ff2844bc44fabddc0f2e0562047

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From: David Long <dave.long@linaro.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	James Hogan <james.hogan@imgtec.com>, Andi Kleen <ak@linux.intel.com>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Subject: [PATCH] Detect section mismatches in thumb relocations
Date: Fri, 31 Jan 2014 13:33:13 -0500
Message-Id: <1391193193-28572-1-git-send-email-dave.long@linaro.org>
Precedence: list
Mailing-list: list patchwork-forward@linaro.org;
	contact patchwork-forward+owners@linaro.org

Commit Message

David Long Jan. 31, 2014, 6:33 p.m. UTC

From: "David A. Long" <dave.long@linaro.org>

Add processing for normally encountered thumb relocation types so that
section mismatches will be detected.

Signed-off-by: David A. Long <dave.long@linaro.org>
---
 scripts/mod/modpost.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 1785576..9e6c996 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1498,6 +1498,16 @@  static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 #define R_ARM_JUMP24	29
 #endif
 
+#ifndef	R_ARM_THM_CALL
+#define	R_ARM_THM_CALL		10
+#endif
+#ifndef	R_ARM_THM_JUMP24
+#define	R_ARM_THM_JUMP24	30
+#endif
+#ifndef	R_ARM_THM_JUMP19
+#define	R_ARM_THM_JUMP19	51
+#endif
+
 static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 {
 	unsigned int r_typ = ELF_R_TYPE(r->r_info);
@@ -1511,6 +1521,9 @@  static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
 	case R_ARM_PC24:
 	case R_ARM_CALL:
 	case R_ARM_JUMP24:
+	case R_ARM_THM_CALL:
+	case R_ARM_THM_JUMP24:
+	case R_ARM_THM_JUMP19:
 		/* From ARM ABI: ((S + A) | T) - P */
 		r->r_addend = (int)(long)(elf->hdr +
 		              sechdr->sh_offset +

Detect section mismatches in thumb relocations

Commit Message

Patch