Date: Sat, 2 Mar 2013 02:19:04 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r247608 - head/sys/arm/arm Message-ID: <201303020219.r222J4hZ090047@svn.freebsd.org>
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Author: andrew Date: Sat Mar 2 02:19:04 2013 New Revision: 247608 URL: http://svnweb.freebsd.org/changeset/base/247608 Log: Ensure the stack is correctly aligned before calling the first C function. Modified: head/sys/arm/arm/locore.S Modified: head/sys/arm/arm/locore.S ============================================================================== --- head/sys/arm/arm/locore.S Sat Mar 2 01:04:02 2013 (r247607) +++ head/sys/arm/arm/locore.S Sat Mar 2 02:19:04 2013 (r247608) @@ -204,6 +204,7 @@ mmu_done: virt_done: mov r1, #20 /* loader info size is 20 bytes also second arg */ subs sp, sp, r1 /* allocate arm_boot_params struct on stack */ + bic sp, sp, #7 /* align stack to 8 bytes */ mov r0, sp /* loader info pointer is first arg */ str r1, [r0] /* Store length of loader info */ str r9, [r0, #4] /* Store r0 from boot loader */
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