diff --git a/mps/code/ssixi3.c b/mps/code/ssixi3.c deleted file mode 100644 index a922cabc5a6..00000000000 --- a/mps/code/ssixi3.c +++ /dev/null @@ -1,111 +0,0 @@ -/* ssixi3.c: UNIX/INTEL STACK SCANNING - * - * $Id$ - * Copyright (c) 2001 Ravenbrook Limited. See end of file for license. - * - * This scans the stack and fixes the registers which may contain - * roots. See - * - * This code was originally developed and tested on Linux, and then - * copied to the FreeBSD and Darwin (OS X) operating systems where it - * also seems to work. Note that on FreeBSD and Darwin it has not - * been indepently verified with respect to any ABI documentation. - * - * This code is common to more than one Unix implementation on - * Intel hardware (but is not portable Unix code). - * - * The registers edi, esi, ebx are the registers defined to be preserved - * across function calls and therefore may contain roots. - * These are pushed on the stack for scanning. - * - * SOURCES - * - * .source.callees.saves: Set of callee-saved registers taken from - * CALL_USED_REGISTERS in /config/i386/i386.h. - * ebp added to the list because gcc now doesn't always use it as - * a frame pointer so it could contain a root. - * - * ASSUMPTIONS - * - * .assume.align: The stack pointer is assumed to be aligned on a word - * boundary. - * - * .assume.asm.stack: The compiler must not do wacky things with the - * stack pointer around a call since we need to ensure that the - * callee-save regs are visible during TraceScanArea. - * - * .assume.asm.order: The volatile modifier should prevent movement - * of code, which might break .assume.asm.stack. - * - */ - - -#include "mpm.h" - -SRCID(ssixi3, "$Id$"); - - -/* .assume.asm.order */ -#define ASMV(x) __asm__ volatile (x) - - -Res StackScan(ScanState ss, Word *stackCold, - mps_area_scan_t scan_area, - void *closure) -{ - Word calleeSaveRegs[4]; - - /* .assume.asm.stack */ - /* Store the callee save registers on the stack so they get scanned - * as they may contain roots. - */ - ASMV("mov %%ebx, %0" : "=m" (calleeSaveRegs[0])); - ASMV("mov %%esi, %0" : "=m" (calleeSaveRegs[1])); - ASMV("mov %%edi, %0" : "=m" (calleeSaveRegs[2])); - ASMV("mov %%ebp, %0" : "=m" (calleeSaveRegs[3])); - - return StackScanInner(ss, stackCold, calleeSaveRegs, NELEMS(calleeSaveRegs), - scan_area, closure); -} - - -/* C. COPYRIGHT AND LICENSE - * - * Copyright (C) 2001-2002 Ravenbrook Limited . - * All rights reserved. This is an open source license. Contact - * Ravenbrook for commercial licensing options. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Redistributions in any form must be accompanied by information on how - * to obtain complete source code for this software and any accompanying - * software that uses this software. The source code must either be - * included in the distribution or be available for no more than the cost - * of distribution plus a nominal fee, and must be freely redistributable - * under reasonable conditions. For an executable file, complete source - * code means the source code for all modules it contains. It does not - * include source code for modules or files that typically accompany the - * major components of the operating system on which the executable file - * runs. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR - * PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ diff --git a/mps/code/ssixi6.c b/mps/code/ssixi6.c deleted file mode 100644 index 2d70d62697c..00000000000 --- a/mps/code/ssixi6.c +++ /dev/null @@ -1,111 +0,0 @@ -/* ssixi6.c: UNIX/x64 STACK SCANNING - * - * $Id$ - * Copyright (c) 2001-2014 Ravenbrook Limited. See end of file for license. - * - * This scans the stack and fixes the registers which may contain - * roots. See - * - * This code was branched from ssixi3.c (32-bit Intel) initially for the - * port to XCI6LL (Mac OS X on x86_64 with Clang). - * - * This code is common to more than one Unix implementation on - * Intel hardware (but is not portable Unix code). According to Wikipedia, - * all the non-Windows platforms use the System V AMD64 ABI. See - * .sources.callees.saves. - * - * SOURCES - * - * .sources.callees.saves: - * "Registers %rbp, %rbx and %r12 through %r15 "belong" to the calling - * function and the called function is required to preserve their values. - * In other words, a called function must preserve these registers’ values - * for its caller." -- System V AMD64 ABI - * - * - * ASSUMPTIONS - * - * .assume.align: The stack pointer is assumed to be aligned on a word - * boundary. - * - * .assume.asm.stack: The compiler must not do wacky things with the - * stack pointer around a call since we need to ensure that the - * callee-save regs are visible during TraceScanArea. - * - * .assume.asm.order: The volatile modifier should prevent movement - * of code, which might break .assume.asm.stack. - * - */ - - -#include "mpm.h" - -SRCID(ssixi6, "$Id$"); - - -/* .assume.asm.order */ -#define ASMV(x) __asm__ volatile (x) - - -Res StackScan(ScanState ss, Word *stackCold, - mps_area_scan_t scan_area, - void *closure) -{ - Word calleeSaveRegs[6]; - - /* .assume.asm.stack */ - /* Store the callee save registers on the stack so they get scanned - * as they may contain roots. - */ - ASMV("mov %%rbp, %0" : "=m" (calleeSaveRegs[0])); - ASMV("mov %%rbx, %0" : "=m" (calleeSaveRegs[1])); - ASMV("mov %%r12, %0" : "=m" (calleeSaveRegs[2])); - ASMV("mov %%r13, %0" : "=m" (calleeSaveRegs[3])); - ASMV("mov %%r14, %0" : "=m" (calleeSaveRegs[4])); - ASMV("mov %%r15, %0" : "=m" (calleeSaveRegs[5])); - - return StackScanInner(ss, stackCold, calleeSaveRegs, NELEMS(calleeSaveRegs), - scan_area, closure); -} - - -/* C. COPYRIGHT AND LICENSE - * - * Copyright (C) 2001-2014 Ravenbrook Limited . - * All rights reserved. This is an open source license. Contact - * Ravenbrook for commercial licensing options. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Redistributions in any form must be accompanied by information on how - * to obtain complete source code for this software and any accompanying - * software that uses this software. The source code must either be - * included in the distribution or be available for no more than the cost - * of distribution plus a nominal fee, and must be freely redistributable - * under reasonable conditions. For an executable file, complete source - * code means the source code for all modules it contains. It does not - * include source code for modules or files that typically accompany the - * major components of the operating system on which the executable file - * runs. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR - * PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */