Date: Tue, 6 Aug 2013 10:03:45 +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: r253985 - head/sys/arm/arm Message-ID: <201308061003.r76A3jpL044424@svn.freebsd.org>
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Author: andrew Date: Tue Aug 6 10:03:44 2013 New Revision: 253985 URL: http://svnweb.freebsd.org/changeset/base/253985 Log: We no longer need to align the stack before calling swi_handler as it is already aligned correctly in the PUSHFRAME macro. Modified: head/sys/arm/arm/exception.S Modified: head/sys/arm/arm/exception.S ============================================================================== --- head/sys/arm/arm/exception.S Tue Aug 6 06:24:37 2013 (r253984) +++ head/sys/arm/arm/exception.S Tue Aug 6 10:03:44 2013 (r253985) @@ -83,10 +83,7 @@ ASENTRY_NP(swi_entry) PUSHFRAME mov r0, sp /* Pass the frame to any function */ - mov r6, sp /* Backup the stack pointer */ - bic sp, sp, #7 /* Align the stack pointer */ bl _C_LABEL(swi_handler) /* It's a SWI ! */ - mov sp, r6 /* Restore the stack */ DO_AST PULLFRAME
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