Mercurial > pub > dyncall > dyncall
view dyncallback/dyncall_args_mips_o32.c @ 533:71c884e610f0
- integration of patches from Raphael Luba, Thekla, Inc.:
* integration of aggregate-by-value (struct, union) support patch for x64 (win and sysv)
* windows/x64 asm additions to specify how stack unwinds (help for debuggers, exception handling, etc.)
* see Changelog for details
- new calling convention modes for thiscalls (platform agnostic, was specific before)
* new signature character for platform agnostic thiscalls ('*' / DC_SIGCHAR_CC_THISCALL)
- dcCallF(), dcVCallF(), dcArgF() and dcVArgF():
* added support for aggregates-by-value (wasn't part of patch)
* change that those functions don't implicitly call dcReset() anymore, which was unflexible (breaking change)
- added macros to feature test implementation for aggregate-by-value and syscall support
- changed libdyncall_s.lib and libdyncallback_s.lib order in callback test makefiles, as some toolchains are picky about order
- doc:
* man page updates to describe aggregate interface
* manual overview changes to highlight platforms with aggregate-by-value support
- test/plain: replaced tests w/ old/stale sctruct interface with new aggregate one
author | Tassilo Philipp |
---|---|
date | Thu, 21 Apr 2022 13:35:47 +0200 |
parents | d55f9d508074 |
children | 111236b31c75 |
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/* Package: dyncall Library: dyncallback File: dyncallback/dyncall_args_mips_o32.c Description: Callback's Arguments VM - Implementation for MIPS o32 License: Copyright (c) 2013-2022 Daniel Adler <dadler@uni-goettingen.de>, Tassilo Philipp <tphilipp@potion-studios.com> Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "dyncall_args_mips.h" DCint dcbArgInt(DCArgs* p) { DCint value; #if defined(DC__ABI_HARDFLOAT) /* first int will disable float reg use. */ p->freg_count = 2; #endif /* DC__ABI_HARDFLOAT */ value = *((int*)p->stackptr); p->stackptr += sizeof(int); return value; } DCuint dcbArgUInt(DCArgs* p) { return (DCuint)dcbArgInt(p); } DCulonglong dcbArgULongLong(DCArgs* p) { DCulonglong value; p->stackptr += ((int)p->stackptr & 4); /* Skip one slot if not aligned. */ #if defined(DC__Endian_LITTLE) value = dcbArgUInt(p); value |= ((DCulonglong)dcbArgUInt(p)) << 32; #else value = ((DCulonglong)dcbArgUInt(p)) << 32; value |= dcbArgUInt(p); #endif return value; } DClonglong dcbArgLongLong(DCArgs* p) { return (DClonglong)dcbArgULongLong(p); } DClong dcbArgLong (DCArgs* p) { return (DClong) dcbArgUInt(p); } DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgUInt(p); } DCchar dcbArgChar (DCArgs* p) { return (DCchar) dcbArgUInt(p); } DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgUInt(p); } DCshort dcbArgShort (DCArgs* p) { return (DCshort) dcbArgUInt(p); } DCushort dcbArgUShort (DCArgs* p) { return (DCushort) dcbArgUInt(p); } DCbool dcbArgBool (DCArgs* p) { return (DCbool) dcbArgUInt(p); } DCpointer dcbArgPointer(DCArgs* p) { return (DCpointer)dcbArgUInt(p); } DCfloat dcbArgFloat(DCArgs* p) { DCfloat result; #if defined(DC__ABI_HARDFLOAT) if(p->freg_count < 2) { /* Stored float regs (max 2) are always 8b aligned. The way we look them up, */ /* relative to a diverging p->stackptr, we need consider this. Only works */ /* with up to two float args, which is all we need. Hacky, but saves us */ /* from one more variable and more bookkeeping in DCArgs. */ result = ((DCfloat*)(p->stackptr + ((int)p->stackptr & 4)) - 4) /* '-4' b/c those regs are stored right before the args */ # if defined(DC__Endian_LITTLE) [0]; # else [1]; # endif ++p->freg_count; } else #endif /* DC__ABI_HARDFLOAT */ { result = *((DCfloat*)p->stackptr); } p->stackptr += sizeof(DCfloat); return result; } DCdouble dcbArgDouble(DCArgs* p) { union { DCdouble result; DCfloat f[2]; } d; p->stackptr += ((int)p->stackptr & 4); /* Skip one slot if not aligned. */ #if defined(DC__ABI_HARDFLOAT) if(p->freg_count < 2) { /*result = *((DCdouble*)p->stackptr-2); this changes the value, slightly*/ d.f[0] = ((DCfloat*)p->stackptr-4)[0]; /* '-4' b/c those regs are stored right before the args */ d.f[1] = ((DCfloat*)p->stackptr-4)[1]; ++p->freg_count; } else #endif /* DC__ABI_HARDFLOAT */ { /*result = *((DCdouble*)p->stackptr); this changes the value, slightly*/ d.f[0] = ((DCfloat*)p->stackptr)[0]; d.f[1] = ((DCfloat*)p->stackptr)[1]; } p->stackptr += sizeof(DCdouble); return d.result; } void dcbArgAggr (DCArgs* p, DCpointer target) { /* @@@AGGR not impl */ } void dcbReturnAggr (DCArgs *args, DCValue *result, DCpointer ret) { /* @@@AGGR not impl */ }