Mercurial > pub > dyncall > dyncall
view dyncall/dyncall_callvm_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 | ddfb9577a00e |
children |
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/* Package: dyncall Library: dyncall File: dyncall/dyncall_callvm_mips_o32.c Description: mips "o32" ABI callvm implementation License: Copyright (c) 2007-2020 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. */ /* dyncall callvm for mips o32 abi REVISION 2010/06/03 initial NOTES: we need an argument counter for supporting floating point arguments correctly. first two (if any) double/float arguments are mapped via a common structure -- code must take care to write the right float argument indices which differs on C and Assembly-side depending on endianness. (therefore both sources have two variants 'mipseb' and 'mipsel'.) (only for the first two float/double arguments) see float/double handling although, the abi does not expect usage of floats if first argument is not floating point, the call kernel can be used universal for all cases. */ #include "dyncall_callvm_mips_o32.h" #include "dyncall_alloc.h" #include "dyncall_utils.h" void dcCall_mips_o32(DCpointer target, DCRegData_mips_o32* regdata, DCsize stksize, DCpointer stkdata); static void dc_callvm_reset_mips_o32(DCCallVM* in_self) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; dcVecReset(&self->mVecHead); self->mArgCount = 0; } static void dc_callvm_free_mips_o32(DCCallVM* in_self) { dcFreeMem(in_self); } /* arg int -- fillup integer register file OR push on stack */ static void dc_callvm_argInt_mips_o32(DCCallVM* in_self, DCint i) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; dcVecAppend(&self->mVecHead, &i, sizeof(DCint)); self->mArgCount++; } static void dc_callvm_argPointer_mips_o32(DCCallVM* in_self, DCpointer x) { dc_callvm_argInt_mips_o32(in_self, *(DCint*)&x); } static void dc_callvm_argBool_mips_o32(DCCallVM* in_self, DCbool x) { dc_callvm_argInt_mips_o32(in_self, (DCint)x); } static void dc_callvm_argChar_mips_o32(DCCallVM* in_self, DCchar x) { dc_callvm_argInt_mips_o32(in_self, (DCint)x); } static void dc_callvm_argShort_mips_o32(DCCallVM* in_self, DCshort x) { dc_callvm_argInt_mips_o32(in_self, (DCint)x); } static void dc_callvm_argLong_mips_o32(DCCallVM* in_self, DClong x) { dc_callvm_argInt_mips_o32(in_self, (DCint)x); } static void dc_callvm_argLongLong_mips_o32(DCCallVM* in_self, DClonglong x) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; /* 64-bit values need to be aligned on 8 byte boundaries */ dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); dcVecAppend(&self->mVecHead, &x, sizeof(DClonglong)); self->mArgCount++; } static void dc_callvm_argFloat_mips_o32(DCCallVM* in_self, DCfloat x) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat)); #if defined(DC__ABI_HARDFLOAT) if (self->mArgCount < 2) { /* @@@ unsure if we should zero init, here; seems to work as-is */ # if defined(DC__Endian_LITTLE) self->mRegData.u[self->mArgCount].f[0] = x; # else self->mRegData.u[self->mArgCount].f[1] = x; /* floats in regs always right justified */ # endif # if 0 self->mRegData.u[self->mArgCount].f[1] = x; call kernel mips: lwc1 $f12, 4($5) <--- byte offset 4 lwc1 $f13, 0($5) lwc1 $f14, 12($5) <--- byte offset 12 lwc1 $f15, 8($5) mipsel: lwc1 $f12, 0($5) <--- byte offset 4 lwc1 $f13, 4($5) lwc1 $f14, 8($5) <--- byte offset 12 lwc1 $f15, 12($5) # if defined(DC__Endian_LITTLE) /* index 0 and 2 */ self->mRegData.floats[self->mArgCount*2] = x; # else /* index 1 and 3 */ self->mRegData.floats[self->mArgCount*2+1] = x; # endif # endif } #endif /* DC__ABI_HARDFLOAT */ self->mArgCount++; } static void dc_callvm_argDouble_mips_o32(DCCallVM* in_self, DCdouble x) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; /* 64-bit values need to be aligned on 8 byte boundaries */ dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble)); #if defined(DC__ABI_HARDFLOAT) if (self->mArgCount < 2) self->mRegData.u[self->mArgCount].d = x; #endif /* DC__ABI_HARDFLOAT */ self->mArgCount++; } /* Call. */ void dc_callvm_call_mips_o32(DCCallVM* in_self, DCpointer target) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; /* provide multiple of 8 (reflecting stack area alignment requirement), and minimum of 16-bytes (to hold first 4 int regis as spill area ($4-$7)) */ size_t size = DC_MAX(16, ( ( (unsigned) dcVecSize(&self->mVecHead) ) +7UL ) & (-8UL) ); dcCall_mips_o32(target, &self->mRegData, size, dcVecData(&self->mVecHead)); } static void dc_callvm_mode_mips_o32(DCCallVM* in_self, DCint mode); DCCallVM_vt gVT_mips_o32 = { &dc_callvm_free_mips_o32 , &dc_callvm_reset_mips_o32 , &dc_callvm_mode_mips_o32 , &dc_callvm_argBool_mips_o32 , &dc_callvm_argChar_mips_o32 , &dc_callvm_argShort_mips_o32 , &dc_callvm_argInt_mips_o32 , &dc_callvm_argLong_mips_o32 , &dc_callvm_argLongLong_mips_o32 , &dc_callvm_argFloat_mips_o32 , &dc_callvm_argDouble_mips_o32 , &dc_callvm_argPointer_mips_o32 , NULL /* argAggr */ , (DCvoidvmfunc*) &dc_callvm_call_mips_o32 , (DCboolvmfunc*) &dc_callvm_call_mips_o32 , (DCcharvmfunc*) &dc_callvm_call_mips_o32 , (DCshortvmfunc*) &dc_callvm_call_mips_o32 , (DCintvmfunc*) &dc_callvm_call_mips_o32 , (DClongvmfunc*) &dc_callvm_call_mips_o32 , (DClonglongvmfunc*) &dc_callvm_call_mips_o32 , (DCfloatvmfunc*) &dc_callvm_call_mips_o32 , (DCdoublevmfunc*) &dc_callvm_call_mips_o32 , (DCpointervmfunc*) &dc_callvm_call_mips_o32 , NULL /* callAggr */ , NULL /* beginAggr */ }; /* mode: only a single mode available currently. */ static void dc_callvm_mode_mips_o32(DCCallVM* in_self, DCint mode) { DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; DCCallVM_vt* vt; switch(mode) { case DC_CALL_C_DEFAULT: case DC_CALL_C_DEFAULT_THIS: case DC_CALL_C_MIPS32_O32: case DC_CALL_C_ELLIPSIS: case DC_CALL_C_ELLIPSIS_VARARGS: vt = &gVT_mips_o32; break; default: self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE; return; } dc_callvm_base_init(&self->mInterface, vt); } /* Public API. */ DCCallVM* dcNewCallVM(DCsize size) { DCCallVM_mips_o32* p = (DCCallVM_mips_o32*)dcAllocMem(sizeof(DCCallVM_mips_o32)+size); dc_callvm_mode_mips_o32((DCCallVM*)p, DC_CALL_C_DEFAULT); dcVecInit(&p->mVecHead, size); dc_callvm_reset_mips_o32((DCCallVM*)p); return (DCCallVM*)p; }