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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-18 19:45:50 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-18 19:45:50 +0000 |
commit | e77fe99962337e339262ea579487eeb3ff50c4b4 (patch) | |
tree | 703e35e0c65bf44d3c4814f5e75e9587c39c98a3 /misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def | |
parent | 050865808bfb56aa3f3dee42157779cf47b16f0e (diff) | |
download | nuttx-e77fe99962337e339262ea579487eeb3ff50c4b4.tar.gz nuttx-e77fe99962337e339262ea579487eeb3ff50c4b4.tar.bz2 nuttx-e77fe99962337e339262ea579487eeb3ff50c4b4.zip |
mknxflat is now in the ballpark
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1904 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def')
-rw-r--r-- | misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def b/misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def new file mode 100644 index 000000000..4bddcd7db --- /dev/null +++ b/misc/buildroot/toolchain/nxflat/thumb2/dyncall_skeleton.def @@ -0,0 +1,180 @@ +/*********************************************************************** + * toolchain/nxflat/thumb2/dyncall_skeleton.def + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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 AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR 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. + * + ***********************************************************************/ + +/******************************************************************* + * File Prologue + *******************************************************************/ + +static const char file_prologue[] = + "/*******************************************************************\n" + " *\n" + " * This file contains the dynamic call logic that performs the thunk\n" + " * for outound calls from one module to another.\n" + " *\n" + " * ARM register quick reference:\n" + " *\n" + " * Name Number ARM Procedure Calling Standard Role\n" + " *\n" + " * a1 r0 argument 1/integer result/scratch register/argc\n" + " * a2 r1 argument 2/scratch register/argv\n" + " * a3 r2 argument 3/scratch register/envp\n" + " * a4 r3 argument 4/scratch register\n" + " * v1 r4 register variable\n" + " * v2 r5 register variable\n" + " * v3 r6 register variable\n" + " * v4 r7 register variable\n" + " * v5 r8 register variable\n" + " * sb/v6 r9 static base/register variable\n" + " * sl/v7 r10 stack limit/stack chunk handle/reg. variable\n" + " * fp r11 frame pointer\n" + " * ip r12 scratch register/new-sb in inter-link-unit calls\n" + " * sp r13 lower end of current stack frame\n" + " * lr r14 link address/scratch register\n" + " * pc r15 program counter\n" + " *******************************************************************/\n\n" + "\t.syntax\tunified\n" + "\t.thumb\n\n" + "/*******************************************************************\n" + " * Included Files\n" + " *******************************************************************/\n\n" + "/*******************************************************************\n" + " * Definitions\n" + " *******************************************************************/\n"; + +static const char import_prologue[] = ""; + +/******************************************************************* + * Import Function Name String Table + *******************************************************************/ + +static const char import_name_strtab_prologue[] = + "\n/*******************************************************************\n" + " * Import Function Names\n" + " *******************************************************************/\n\n" + "/* These are the names of all of the functions that are imported.\n" + " * Notice that all data associated with the library names is retained\n" + " * in the .text section." + " */\n\n" + "\t.text\n" + "\t.align\t0\n"; + +#define MKIMPSTRTABARG(fn,i) (i), (i), (i), (fn), (i), (i) + +static const char import_name_strtab_format[] = + "\n\t.local\t__dynimport%04d\n" + "\t.type\t__dynimport%04d, object\n\n" + "__dynimport%04d:\n" + "\t.asciz\t\"%s\"\n" + "\t.size\t__dynimport%04d, .-__dynimport%04d\n"; + +/******************************************************************* + * Dyanamic Call Information + *******************************************************************/ + +static const char dynimport_decl_prologue[] = + "\n/*******************************************************************\n" + " * Imported Symbol Table (an array of type struct flat_import)\n" + " *******************************************************************/\n\n" + "/* Notice that, unlike most other arrays in this file, this array\n" + " * is declared to reside in .data. Because of this, there will be\n" + " * per-process instances of this table.\n" + " */\n\n" + "\t.data\n" + "\t.align\t2\n\n" + "\t.global\t__dynimport_begin\n" + "\t.type\t__dynimport_begin, object\n" + "\t.global\t__dynimport_end\n" + "\t.type\t__dynimport_end, object\n\n"; + +#define MKINFODECLARGS(fn, i) (i), (fn), (i) + +static const char dynimport_decl_format[] = + "\t.local\t__dyninfo%04d\t/* Dynamic info for imported symbol %s */\n" + "\t.type\t__dyninfo%04d, object\n"; + +static const char dynimport_array_prologue[] = + "\n__dynimport_begin:\n"; + +#define MKINFOARGS(fn, i) (i), (fn), (i), (i), (i) + +static const char dynimport_array_format[] = + "__dyninfo%04d:\t\t\t/* Dynamic info for imported symbol %s */\n" + "\t.word\t__dynimport%04d\t/* Offset to name of imported function */\n" + "\t.word\t0\t\t/* Resolved address of imported function */\n" + "\t.size\t__dyninfo%04d, .-__dyninfo%04d\n"; + +static const char dynimport_array_epilogue[] = + "__dynimport_end:\n" + "\t.size\t__dynimport_begin, __dynimport_end-__dynimport_begin\n"; + +static const char dyncall_decl_prologue[] = + "\n/*******************************************************************\n" + " * Dynamic Call Logic\n" + " *******************************************************************/\n\n" + "\t.text\n" + "\t.align\t2\n"; + +#define MKCALLARGS(fn, i) (fn), (fn), (fn), (fn), (i), (fn), (fn) + +static const char dyncall_format[] = + "\n/* Dynamic call logic for imported symbol %s */\n\n" + "\t.global\t%s\n" + "\t.type\t%s, function\n\n" + "%s:\n" + "\tstmdb\tsp!,{r4, lr}\n" + "\tldr\tr4, =__dyninfo%04d\n" + "\tbl\t[r4]\n" + "\tldmia\tsp!,{r4, pc}\n" + "\t.size\t%s, .-%s\n"; + +static const char nonreturning_dyncall_format[] = + "\n/* Dynamic call logic for imported, non-returning symbol %s */\n\n" + "\t.global\t%s\n" + "\t.type\t%s, function\n\n" + "%s:\n" + "\tldr\tr4, =__dyninfo%04d\n" + "\tb\t[r4]\n" + "\t.size\t%s, .-%s\n"; + +/******************************************************************* + * File Epilogue + *******************************************************************/ + +static const char file_epilogue[] = + "\t.end\n"; + + + + |