Date: Thu, 22 Mar 2012 17:36:53 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233316 - head/sys/sys Message-ID: <201203221736.q2MHart2034363@svn.freebsd.org>
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Author: gonzo Date: Thu Mar 22 17:36:53 2012 New Revision: 233316 URL: http://svn.freebsd.org/changeset/base/233316 Log: Fix PMC syscall on 64-bit big endian systems. Sycall argument is pointer to array of register_t values. Casting it to pointer to structure with fields of size smaller then register_t we rely on compiler-dependent memory layout of structure. Tested on: mips64 and amd64 systems Modified: head/sys/sys/pmc.h Modified: head/sys/sys/pmc.h ============================================================================== --- head/sys/sys/pmc.h Thu Mar 22 17:04:49 2012 (r233315) +++ head/sys/sys/pmc.h Thu Mar 22 17:36:53 2012 (r233316) @@ -589,7 +589,7 @@ struct pmc_op_getmsr { */ struct pmc_syscall_args { - uint32_t pmop_code; /* one of PMC_OP_* */ + register_t pmop_code; /* one of PMC_OP_* */ void *pmop_data; /* syscall parameter */ };
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