Author: andrew Date: Sun Apr 8 04:36:27 2012 New Revision: 234014 URL: http://svn.freebsd.org/changeset/base/234014
Log: Unlike other functions __aeabi_read_tp function must preserve r1-r3. The currently generated code clobbers r3. Fix this by loading ARM_TP_ADDRESS using inline assembly. Approved by: imp (mentor) Modified: head/lib/libc/arm/gen/__aeabi_read_tp.c Modified: head/lib/libc/arm/gen/__aeabi_read_tp.c ============================================================================== --- head/lib/libc/arm/gen/__aeabi_read_tp.c Sun Apr 8 04:22:09 2012 (r234013) +++ head/lib/libc/arm/gen/__aeabi_read_tp.c Sun Apr 8 04:36:27 2012 (r234014) @@ -1,5 +1,6 @@ /*- * Copyright (c) 2012 Oleksandr Tymoshenko + * Copyright (c) 2012 Andrew Turner * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -36,7 +37,9 @@ __FBSDID("$FreeBSD$"); void * __aeabi_read_tp() { - void **_tp = (void **)ARM_TP_ADDRESS; + void *_tp; - return (*_tp); + asm("ldr %0, [%1]\n" : "=r"(_tp) : "r"(ARM_TP_ADDRESS)); + + return _tp; } _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"