mirror of
https://github.com/verilator/verilator.git
synced 2025-02-08 14:41:48 +00:00
0102efd4ea
* Add tests for unpacked array in DPI-C * Add more generic parameter generator to AstNodes * Supports multi dimensional array in DPI ( DPI argmuments <=> Verilator internal type conversion) consider typedef in V3Task fix export test fix inout for scalar support export func of time * V3Premit does not show an error for wide words nor ArraySel * Unnecessary pack func for unapcked array does not appear anymore * Support unpacked array in runtime header - Add an overload for lvalue VL_CVT_PACK_STR_NN - Allow conversion from void * * touch up tests for codacy advices * resolve free functions. no functional change intended.
513 lines
22 KiB
C++
513 lines
22 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
|
|
//*************************************************************************
|
|
// DESCRIPTION: Verilator: Build DPI protected C++ and SV
|
|
//
|
|
// Code available from: https://verilator.org
|
|
//
|
|
//*************************************************************************
|
|
//
|
|
// Copyright 2003-2020 by Wilson Snyder. This program is free software; you
|
|
// can redistribute it and/or modify it under the terms of either the GNU
|
|
// Lesser General Public License Version 3 or the Perl Artistic License
|
|
// Version 2.0.
|
|
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
|
|
//
|
|
//*************************************************************************
|
|
|
|
#include "config_build.h"
|
|
#include "verilatedos.h"
|
|
|
|
#include "V3Global.h"
|
|
#include "V3String.h"
|
|
#include "V3ProtectLib.h"
|
|
#include "V3Hashed.h"
|
|
#include "V3Task.h"
|
|
|
|
#include <list>
|
|
|
|
//######################################################################
|
|
// ProtectLib top-level visitor
|
|
|
|
class ProtectVisitor final : public AstNVisitor {
|
|
private:
|
|
AstVFile* m_vfilep = nullptr; // DPI-enabled Verilog wrapper
|
|
AstCFile* m_cfilep = nullptr; // C implementation of DPI functions
|
|
// Verilog text blocks
|
|
AstTextBlock* m_modPortsp = nullptr; // Module port list
|
|
AstTextBlock* m_comboPortsp = nullptr; // Combo function port list
|
|
AstTextBlock* m_seqPortsp = nullptr; // Sequential function port list
|
|
AstTextBlock* m_comboIgnorePortsp = nullptr; // Combo ignore function port list
|
|
AstTextBlock* m_comboDeclsp = nullptr; // Combo signal declaration list
|
|
AstTextBlock* m_seqDeclsp = nullptr; // Sequential signal declaration list
|
|
AstTextBlock* m_tmpDeclsp = nullptr; // Temporary signal declaration list
|
|
AstTextBlock* m_hashValuep = nullptr; // CPP hash value
|
|
AstTextBlock* m_comboParamsp = nullptr; // Combo function parameter list
|
|
AstTextBlock* m_clkSensp = nullptr; // Clock sensitivity list
|
|
AstTextBlock* m_comboIgnoreParamsp = nullptr; // Combo ignore parameter list
|
|
AstTextBlock* m_seqParamsp = nullptr; // Sequential parameter list
|
|
AstTextBlock* m_nbAssignsp = nullptr; // Non-blocking assignment list
|
|
AstTextBlock* m_seqAssignsp = nullptr; // Sequential assignment list
|
|
AstTextBlock* m_comboAssignsp = nullptr; // Combo assignment list
|
|
// C text blocks
|
|
AstTextBlock* m_cHashValuep = nullptr; // CPP hash value
|
|
AstTextBlock* m_cComboParamsp = nullptr; // Combo function parameter list
|
|
AstTextBlock* m_cComboInsp = nullptr; // Combo input copy list
|
|
AstTextBlock* m_cComboOutsp = nullptr; // Combo output copy list
|
|
AstTextBlock* m_cSeqParamsp = nullptr; // Sequential parameter list
|
|
AstTextBlock* m_cSeqClksp = nullptr; // Sequential clock copy list
|
|
AstTextBlock* m_cSeqOutsp = nullptr; // Sequential output copy list
|
|
AstTextBlock* m_cIgnoreParamsp = nullptr; // Combo ignore parameter list
|
|
string m_libName;
|
|
string m_topName;
|
|
bool m_foundTop = false; // Have seen the top module
|
|
bool m_hasClk = false; // True if the top module has sequential logic
|
|
|
|
// VISITORS
|
|
virtual void visit(AstNetlist* nodep) override {
|
|
m_vfilep
|
|
= new AstVFile(nodep->fileline(), v3Global.opt.makeDir() + "/" + m_libName + ".sv");
|
|
nodep->addFilesp(m_vfilep);
|
|
m_cfilep
|
|
= new AstCFile(nodep->fileline(), v3Global.opt.makeDir() + "/" + m_libName + ".cpp");
|
|
nodep->addFilesp(m_cfilep);
|
|
iterateChildren(nodep);
|
|
}
|
|
|
|
virtual void visit(AstNodeModule* nodep) override {
|
|
if (!nodep->isTop()) {
|
|
return;
|
|
} else {
|
|
UASSERT_OBJ(!m_foundTop, nodep, "Multiple root modules");
|
|
}
|
|
FileLine* fl = nodep->fileline();
|
|
// Need to know the existence of clk before createSvFile()
|
|
m_hasClk = checkIfClockExists(nodep);
|
|
createSvFile(fl, nodep);
|
|
createCppFile(fl);
|
|
|
|
iterateChildren(nodep);
|
|
|
|
V3Hash hash = V3Hashed::uncachedHash(m_cfilep);
|
|
m_hashValuep->addText(fl, cvtToStr(hash.fullValue()) + ";\n");
|
|
m_cHashValuep->addText(fl, cvtToStr(hash.fullValue()) + "U;\n");
|
|
m_foundTop = true;
|
|
}
|
|
|
|
void addComment(AstTextBlock* txtp, FileLine* fl, const string& comment) {
|
|
txtp->addNodep(new AstComment(fl, comment));
|
|
}
|
|
|
|
void hashComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Checks to make sure the .sv wrapper and library agree");
|
|
}
|
|
|
|
void initialComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Creates an instance of the secret module at initial-time");
|
|
addComment(txtp, fl, "(one for each instance in the user's design) also evaluates");
|
|
addComment(txtp, fl, "the secret module's initial process");
|
|
}
|
|
|
|
void comboComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Updates all non-clock inputs and retrieves the results");
|
|
}
|
|
|
|
void seqComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Updates all clocks and retrieves the results");
|
|
}
|
|
|
|
void comboIgnoreComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Need to convince some simulators that the input to the module");
|
|
addComment(txtp, fl, "must be evaluated before evaluating the clock edge");
|
|
}
|
|
|
|
void finalComment(AstTextBlock* txtp, FileLine* fl) {
|
|
addComment(txtp, fl, "Evaluates the secret module's final process");
|
|
}
|
|
|
|
void createSvFile(FileLine* fl, AstNodeModule* modp) {
|
|
// Comments
|
|
AstTextBlock* txtp = new AstTextBlock(fl);
|
|
addComment(txtp, fl, "Wrapper module for DPI protected library");
|
|
addComment(txtp, fl,
|
|
"This module requires lib" + m_libName + ".a or lib" + m_libName
|
|
+ ".so to work");
|
|
addComment(txtp, fl,
|
|
"See instructions in your simulator for how"
|
|
" to use DPI libraries\n");
|
|
|
|
bool timescaleShown = false;
|
|
if (v3Global.opt.hierChild() && !modp->timeunit().isNone()) {
|
|
// Emit timescale for hierarhical verilation
|
|
timescaleShown = true;
|
|
txtp->addText(fl, string("`timescale ") + modp->timeunit().ascii() + "/"
|
|
+ v3Global.rootp()->timeprecision().ascii() + "\n\n");
|
|
}
|
|
// Module declaration
|
|
m_modPortsp = new AstTextBlock(fl, "module " + m_libName + " (\n", false, true);
|
|
txtp->addNodep(m_modPortsp);
|
|
txtp->addText(fl, ");\n\n");
|
|
|
|
// Timescale
|
|
if (!timescaleShown) {
|
|
addComment(txtp, fl,
|
|
"Precision of submodule"
|
|
" (commented out to avoid requiring timescale on all modules)");
|
|
addComment(txtp, fl, string("timeunit ") + v3Global.rootp()->timeunit().ascii() + ";");
|
|
addComment(txtp, fl,
|
|
string("timeprecision ") + v3Global.rootp()->timeprecision().ascii()
|
|
+ ";\n");
|
|
}
|
|
|
|
// DPI declarations
|
|
hashComment(txtp, fl);
|
|
txtp->addText(fl, "import \"DPI-C\" function void " + m_libName
|
|
+ "_protectlib_check_hash(int protectlib_hash__V);\n\n");
|
|
initialComment(txtp, fl);
|
|
txtp->addText(fl, "import \"DPI-C\" function chandle " + m_libName
|
|
+ "_protectlib_create(string scope__V);\n\n");
|
|
comboComment(txtp, fl);
|
|
m_comboPortsp = new AstTextBlock(fl,
|
|
"import \"DPI-C\" function longint " + m_libName
|
|
+ "_protectlib_combo_update "
|
|
"(\n",
|
|
false, true);
|
|
m_comboPortsp->addText(fl, "chandle handle__V\n");
|
|
txtp->addNodep(m_comboPortsp);
|
|
txtp->addText(fl, ");\n\n");
|
|
seqComment(txtp, fl);
|
|
if (m_hasClk) {
|
|
m_seqPortsp = new AstTextBlock(fl,
|
|
"import \"DPI-C\" function longint " + m_libName
|
|
+ "_protectlib_seq_update"
|
|
"(\n",
|
|
false, true);
|
|
m_seqPortsp->addText(fl, "chandle handle__V\n");
|
|
txtp->addNodep(m_seqPortsp);
|
|
txtp->addText(fl, ");\n\n");
|
|
}
|
|
comboIgnoreComment(txtp, fl);
|
|
m_comboIgnorePortsp = new AstTextBlock(fl,
|
|
"import \"DPI-C\" function void " + m_libName
|
|
+ "_protectlib_combo_ignore"
|
|
"(\n",
|
|
false, true);
|
|
m_comboIgnorePortsp->addText(fl, "chandle handle__V\n");
|
|
txtp->addNodep(m_comboIgnorePortsp);
|
|
txtp->addText(fl, ");\n\n");
|
|
finalComment(txtp, fl);
|
|
txtp->addText(fl, "import \"DPI-C\" function void " + m_libName
|
|
+ "_protectlib_final(chandle handle__V);\n\n");
|
|
|
|
// Local variables
|
|
txtp->addText(fl, "chandle handle__V;\n\n");
|
|
m_comboDeclsp = new AstTextBlock(fl);
|
|
txtp->addNodep(m_comboDeclsp);
|
|
m_seqDeclsp = new AstTextBlock(fl);
|
|
txtp->addNodep(m_seqDeclsp);
|
|
m_tmpDeclsp = new AstTextBlock(fl);
|
|
txtp->addNodep(m_tmpDeclsp);
|
|
txtp->addText(fl, "\ntime last_combo_seqnum__V;\n");
|
|
if (m_hasClk) { txtp->addText(fl, "time last_seq_seqnum__V;\n\n"); }
|
|
|
|
// CPP hash value
|
|
addComment(txtp, fl, "Hash value to make sure this file and the corresponding");
|
|
addComment(txtp, fl, "library agree");
|
|
m_hashValuep = new AstTextBlock(fl, "localparam int protectlib_hash__V = 32'd");
|
|
txtp->addNodep(m_hashValuep);
|
|
txtp->addText(fl, "\n");
|
|
|
|
// Initial
|
|
txtp->addText(fl, "initial begin\n");
|
|
txtp->addText(fl, m_libName + "_protectlib_check_hash(protectlib_hash__V);\n");
|
|
txtp->addText(fl, "handle__V = " + m_libName
|
|
+ "_protectlib_create"
|
|
"($sformatf(\"%m\"));\n");
|
|
txtp->addText(fl, "end\n\n");
|
|
|
|
// Combinatorial process
|
|
addComment(txtp, fl, "Combinatorialy evaluate changes to inputs");
|
|
m_comboParamsp = new AstTextBlock(fl,
|
|
"always @(*) begin\n"
|
|
"last_combo_seqnum__V = "
|
|
+ m_libName + "_protectlib_combo_update(\n",
|
|
false, true);
|
|
m_comboParamsp->addText(fl, "handle__V\n");
|
|
txtp->addNodep(m_comboParamsp);
|
|
txtp->addText(fl, ");\n");
|
|
txtp->addText(fl, "end\n\n");
|
|
|
|
// Sequential process
|
|
if (m_hasClk) {
|
|
addComment(txtp, fl, "Evaluate clock edges");
|
|
m_clkSensp = new AstTextBlock(fl, "always @(", false, true);
|
|
txtp->addNodep(m_clkSensp);
|
|
txtp->addText(fl, ") begin\n");
|
|
m_comboIgnoreParamsp
|
|
= new AstTextBlock(fl, m_libName + "_protectlib_combo_ignore(\n", false, true);
|
|
m_comboIgnoreParamsp->addText(fl, "handle__V\n");
|
|
txtp->addNodep(m_comboIgnoreParamsp);
|
|
txtp->addText(fl, ");\n");
|
|
m_seqParamsp = new AstTextBlock(
|
|
fl, "last_seq_seqnum__V <= " + m_libName + "_protectlib_seq_update(\n", false,
|
|
true);
|
|
m_seqParamsp->addText(fl, "handle__V\n");
|
|
txtp->addNodep(m_seqParamsp);
|
|
txtp->addText(fl, ");\n");
|
|
m_nbAssignsp = new AstTextBlock(fl);
|
|
txtp->addNodep(m_nbAssignsp);
|
|
txtp->addText(fl, "end\n\n");
|
|
}
|
|
|
|
// Select between combinatorial and sequential results
|
|
addComment(txtp, fl, "Select between combinatorial and sequential results");
|
|
txtp->addText(fl, "always @(*) begin\n");
|
|
if (m_hasClk) {
|
|
m_seqAssignsp = new AstTextBlock(fl, "if (last_seq_seqnum__V > "
|
|
"last_combo_seqnum__V) begin\n");
|
|
txtp->addNodep(m_seqAssignsp);
|
|
m_comboAssignsp = new AstTextBlock(fl, "end else begin\n");
|
|
txtp->addNodep(m_comboAssignsp);
|
|
txtp->addText(fl, "end\n");
|
|
} else {
|
|
m_comboAssignsp = new AstTextBlock(fl, "");
|
|
txtp->addNodep(m_comboAssignsp);
|
|
}
|
|
txtp->addText(fl, "end\n\n");
|
|
|
|
// Final
|
|
txtp->addText(fl, "final " + m_libName + "_protectlib_final(handle__V);\n\n");
|
|
|
|
txtp->addText(fl, "endmodule\n");
|
|
m_vfilep->tblockp(txtp);
|
|
}
|
|
|
|
void castPtr(FileLine* fl, AstTextBlock* txtp) {
|
|
txtp->addText(fl, m_topName
|
|
+ "_container* handlep__V = " // LCOV_EXCL_LINE // lcov bug
|
|
"static_cast<"
|
|
+ m_topName + "_container*>(vhandlep__V);\n");
|
|
}
|
|
|
|
void createCppFile(FileLine* fl) {
|
|
// Comments
|
|
AstTextBlock* txtp = new AstTextBlock(fl);
|
|
addComment(txtp, fl, "Wrapper functions for DPI protected library\n");
|
|
|
|
// Includes
|
|
txtp->addText(fl, "#include \"" + m_topName + ".h\"\n");
|
|
txtp->addText(fl, "#include \"verilated_dpi.h\"\n\n");
|
|
txtp->addText(fl, "#include <cstdio>\n");
|
|
txtp->addText(fl, "#include <cstdlib>\n\n");
|
|
|
|
// Verilated module plus sequence number
|
|
addComment(txtp, fl, "Container class to house verilated object and sequence number");
|
|
txtp->addText(fl, "class " + m_topName + "_container: public " + m_topName + " {\n");
|
|
txtp->addText(fl, "public:\n");
|
|
txtp->addText(fl, "long long m_seqnum;\n");
|
|
txtp->addText(fl, m_topName + "_container(const char* scopep__V):\n");
|
|
txtp->addText(fl, m_topName + "(scopep__V) {}\n");
|
|
txtp->addText(fl, "};\n\n");
|
|
|
|
// Extern C
|
|
txtp->addText(fl, "extern \"C\" {\n\n");
|
|
|
|
// Hash check
|
|
hashComment(txtp, fl);
|
|
txtp->addText(fl, "void " + m_libName
|
|
+ "_protectlib_check_hash"
|
|
"(int protectlib_hash__V) {\n");
|
|
m_cHashValuep = new AstTextBlock(fl, "int expected_hash__V = ");
|
|
txtp->addNodep(m_cHashValuep);
|
|
txtp->addText(fl, "if (protectlib_hash__V != expected_hash__V) {\n");
|
|
txtp->addText(fl, "fprintf(stderr, \"%%Error: cannot use " + m_libName
|
|
+ " library, "
|
|
"Verliog (%u) and library (%u) hash values do not "
|
|
"agree\\n\", protectlib_hash__V, expected_hash__V);\n");
|
|
txtp->addText(fl, "exit(EXIT_FAILURE);\n");
|
|
txtp->addText(fl, "}\n");
|
|
txtp->addText(fl, "}\n\n");
|
|
|
|
// Initial
|
|
initialComment(txtp, fl);
|
|
txtp->addText(fl, "void* " + m_libName + "_protectlib_create(const char* scopep__V) {\n");
|
|
txtp->addText(fl, m_topName + "_container* handlep__V = new " + m_topName
|
|
+ "_container(scopep__V);\n");
|
|
txtp->addText(fl, "return handlep__V;\n");
|
|
txtp->addText(fl, "}\n\n");
|
|
|
|
// Updates
|
|
comboComment(txtp, fl);
|
|
m_cComboParamsp = new AstTextBlock(
|
|
fl, "long long " + m_libName + "_protectlib_combo_update(\n", false, true);
|
|
m_cComboParamsp->addText(fl, "void* vhandlep__V\n");
|
|
txtp->addNodep(m_cComboParamsp);
|
|
txtp->addText(fl, ")\n");
|
|
m_cComboInsp = new AstTextBlock(fl, "{\n");
|
|
castPtr(fl, m_cComboInsp);
|
|
txtp->addNodep(m_cComboInsp);
|
|
m_cComboOutsp = new AstTextBlock(fl, "handlep__V->eval();\n");
|
|
txtp->addNodep(m_cComboOutsp);
|
|
txtp->addText(fl, "return handlep__V->m_seqnum++;\n");
|
|
txtp->addText(fl, "}\n\n");
|
|
|
|
if (m_hasClk) {
|
|
seqComment(txtp, fl);
|
|
m_cSeqParamsp = new AstTextBlock(
|
|
fl, "long long " + m_libName + "_protectlib_seq_update(\n", false, true);
|
|
m_cSeqParamsp->addText(fl, "void* vhandlep__V\n");
|
|
txtp->addNodep(m_cSeqParamsp);
|
|
txtp->addText(fl, ")\n");
|
|
m_cSeqClksp = new AstTextBlock(fl, "{\n");
|
|
castPtr(fl, m_cSeqClksp);
|
|
txtp->addNodep(m_cSeqClksp);
|
|
m_cSeqOutsp = new AstTextBlock(fl, "handlep__V->eval();\n");
|
|
txtp->addNodep(m_cSeqOutsp);
|
|
txtp->addText(fl, "return handlep__V->m_seqnum++;\n");
|
|
txtp->addText(fl, "}\n\n");
|
|
}
|
|
|
|
comboIgnoreComment(txtp, fl);
|
|
m_cIgnoreParamsp = new AstTextBlock(
|
|
fl, "void " + m_libName + "_protectlib_combo_ignore(\n", false, true);
|
|
m_cIgnoreParamsp->addText(fl, "void* vhandlep__V\n");
|
|
txtp->addNodep(m_cIgnoreParamsp);
|
|
txtp->addText(fl, ")\n");
|
|
txtp->addText(fl, "{ }\n\n");
|
|
|
|
// Final
|
|
finalComment(txtp, fl);
|
|
txtp->addText(fl, "void " + m_libName + "_protectlib_final(void* vhandlep__V) {\n");
|
|
castPtr(fl, txtp);
|
|
txtp->addText(fl, "handlep__V->final();\n");
|
|
txtp->addText(fl, "delete handlep__V;\n");
|
|
txtp->addText(fl, "}\n\n");
|
|
|
|
txtp->addText(fl, "}\n");
|
|
m_cfilep->tblockp(txtp);
|
|
}
|
|
|
|
virtual void visit(AstVar* nodep) override {
|
|
if (!nodep->isIO()) return;
|
|
if (VN_IS(nodep->dtypep(), UnpackArrayDType)) {
|
|
nodep->v3warn(E_UNSUPPORTED, "Unsupported: unpacked arrays with protect-lib on "
|
|
<< nodep->prettyNameQ());
|
|
}
|
|
if (nodep->direction() == VDirection::INPUT) {
|
|
if (nodep->isUsedClock() || nodep->attrClocker() == VVarAttrClocker::CLOCKER_YES) {
|
|
UASSERT_OBJ(m_hasClk, nodep, "checkIfClockExists() didn't find this clock");
|
|
handleClock(nodep);
|
|
} else {
|
|
handleDataInput(nodep);
|
|
}
|
|
} else if (nodep->direction() == VDirection::OUTPUT) {
|
|
handleOutput(nodep);
|
|
} else {
|
|
nodep->v3warn(E_UNSUPPORTED, "Unsupported: protect-lib port direction: "
|
|
<< nodep->direction().ascii());
|
|
}
|
|
}
|
|
|
|
virtual void visit(AstNode*) override {}
|
|
|
|
string cInputConnection(AstVar* varp) {
|
|
string frstmt;
|
|
string ket;
|
|
bool useSetWSvlv = V3Task::dpiToInternalFrStmt(varp, varp->name(), frstmt, ket);
|
|
if (useSetWSvlv) {
|
|
return frstmt + ket + " handlep__V->" + varp->name() + ", " + varp->name() + ");\n";
|
|
}
|
|
return "handlep__V->" + varp->name() + " = " + frstmt + ket + ";\n";
|
|
}
|
|
|
|
void handleClock(AstVar* varp) {
|
|
FileLine* fl = varp->fileline();
|
|
handleInput(varp);
|
|
m_seqPortsp->addNodep(varp->cloneTree(false));
|
|
if (m_hasClk) {
|
|
m_seqParamsp->addText(fl, varp->name() + "\n");
|
|
m_clkSensp->addText(fl, "posedge " + varp->name() + " or negedge " + varp->name());
|
|
}
|
|
m_cSeqParamsp->addText(fl, varp->dpiArgType(true, false) + "\n");
|
|
m_cSeqClksp->addText(fl, cInputConnection(varp));
|
|
}
|
|
|
|
void handleDataInput(AstVar* varp) {
|
|
FileLine* fl = varp->fileline();
|
|
handleInput(varp);
|
|
m_comboPortsp->addNodep(varp->cloneTree(false));
|
|
m_comboParamsp->addText(fl, varp->name() + "\n");
|
|
m_comboIgnorePortsp->addNodep(varp->cloneTree(false));
|
|
if (m_hasClk) { m_comboIgnoreParamsp->addText(fl, varp->name() + "\n"); }
|
|
m_cComboParamsp->addText(fl, varp->dpiArgType(true, false) + "\n");
|
|
m_cComboInsp->addText(fl, cInputConnection(varp));
|
|
m_cIgnoreParamsp->addText(fl, varp->dpiArgType(true, false) + "\n");
|
|
}
|
|
|
|
void handleInput(AstVar* varp) { m_modPortsp->addNodep(varp->cloneTree(false)); }
|
|
|
|
void handleOutput(AstVar* varp) {
|
|
FileLine* fl = varp->fileline();
|
|
m_modPortsp->addNodep(varp->cloneTree(false));
|
|
m_comboPortsp->addNodep(varp->cloneTree(false));
|
|
m_comboParamsp->addText(fl, varp->name() + "_combo__V\n");
|
|
if (m_hasClk) {
|
|
m_seqPortsp->addNodep(varp->cloneTree(false));
|
|
m_seqParamsp->addText(fl, varp->name() + "_tmp__V\n");
|
|
}
|
|
|
|
AstNodeDType* comboDtypep = varp->dtypep()->cloneTree(false);
|
|
m_comboDeclsp->addNodep(comboDtypep);
|
|
m_comboDeclsp->addText(fl, " " + varp->name() + "_combo__V;\n");
|
|
|
|
if (m_hasClk) {
|
|
AstNodeDType* seqDtypep = varp->dtypep()->cloneTree(false);
|
|
m_seqDeclsp->addNodep(seqDtypep);
|
|
m_seqDeclsp->addText(fl, " " + varp->name() + "_seq__V;\n");
|
|
|
|
AstNodeDType* tmpDtypep = varp->dtypep()->cloneTree(false);
|
|
m_tmpDeclsp->addNodep(tmpDtypep);
|
|
m_tmpDeclsp->addText(fl, " " + varp->name() + "_tmp__V;\n");
|
|
|
|
m_nbAssignsp->addText(fl, varp->name() + "_seq__V <= " + varp->name() + "_tmp__V;\n");
|
|
m_seqAssignsp->addText(fl, varp->name() + " = " + varp->name() + "_seq__V;\n");
|
|
}
|
|
m_comboAssignsp->addText(fl, varp->name() + " = " + varp->name() + "_combo__V;\n");
|
|
m_cComboParamsp->addText(fl, varp->dpiArgType(true, false) + "\n");
|
|
m_cComboOutsp->addText(fl,
|
|
V3Task::assignInternalToDpi(varp, true, "", "", "handlep__V->"));
|
|
if (m_hasClk) {
|
|
m_cSeqParamsp->addText(fl, varp->dpiArgType(true, false) + "\n");
|
|
m_cSeqOutsp->addText(fl,
|
|
V3Task::assignInternalToDpi(varp, true, "", "", "handlep__V->"));
|
|
}
|
|
}
|
|
|
|
static bool checkIfClockExists(AstNodeModule* modp) {
|
|
for (AstNode* stmtp = modp->stmtsp(); stmtp; stmtp = stmtp->nextp()) {
|
|
if (AstVar* varp = VN_CAST(stmtp, Var)) {
|
|
if (varp->direction() == VDirection::INPUT
|
|
&& (varp->isUsedClock()
|
|
|| varp->attrClocker() == VVarAttrClocker::CLOCKER_YES)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public:
|
|
explicit ProtectVisitor(AstNode* nodep)
|
|
: m_libName{v3Global.opt.protectLib()}
|
|
, m_topName{v3Global.opt.prefix()} {
|
|
iterate(nodep);
|
|
}
|
|
};
|
|
|
|
//######################################################################
|
|
// ProtectLib class functions
|
|
|
|
void V3ProtectLib::protect() {
|
|
UINFO(2, __FUNCTION__ << ": " << endl);
|
|
ProtectVisitor(v3Global.rootp());
|
|
}
|