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Testbench automatically creates memfile, label, addr files if they are out of date or missing

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David Harris 2024-07-03 16:52:16 -07:00
parent 9b120bb3aa
commit 8645441d00
2 changed files with 22 additions and 2 deletions
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12
testbench/Makefile Normal file
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@ -0,0 +1,12 @@
# Makefile for testbench to create .memfile, .objdump.addr, and .objdump.lab from an ELF
# David_Harris@hmc.edu 3 July 2024
# SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
%.elf.memfile: %.elf
riscv64-unknown-elf-elf2hex --bit-width 64 --input $< --output $@
%.elf.objdump.addr: %.elf.objdump
extractFunctionRadix.sh $<
%.elf.objdump: %.elf
riscv64-unknown-elf-objdump -S -D $< > $@

12
testbench/testbench.sv
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@ -54,11 +54,14 @@ module testbench;
`ifdef VERILATOR `ifdef VERILATOR
import "DPI-C" function string getenvval(input string env_name); import "DPI-C" function string getenvval(input string env_name);
string RISCV_DIR = getenvval("RISCV"); // "/opt/riscv"; string RISCV_DIR = getenvval("RISCV"); // "/opt/riscv";
string WALLY_DIR = getenvval("WALLY"); // ~/cvw typical
`elsif VCS `elsif VCS
import "DPI-C" function string getenv(input string env_name); import "DPI-C" function string getenv(input string env_name);
string RISCV_DIR = getenv("RISCV"); // "/opt/riscv"; string RISCV_DIR = getenv("RISCV"); // "/opt/riscv";
string WALLY_DIR = getenv("WALLY");
`else `else
string RISCV_DIR = "$RISCV"; // "/opt/riscv"; string RISCV_DIR = "$RISCV"; // "/opt/riscv";
string WALLY_DIR = "$WALLY";
`endif `endif
`include "parameter-defs.vh" `include "parameter-defs.vh"
@ -382,7 +385,7 @@ module testbench;
// declare memory labels that interest us, the updateProgramAddrLabelArray task will find // declare memory labels that interest us, the updateProgramAddrLabelArray task will find
// the addr of each label and fill the array. To expand, add more elements to this array // the addr of each label and fill the array. To expand, add more elements to this array
// and initialize them to zero (also initilaize them to zero at the start of the next test) // and initialize them to zero (also initilaize them to zero at the start of the next test)
updateProgramAddrLabelArray(ProgramAddrMapFile, ProgramLabelMapFile, ProgramAddrLabelArray); updateProgramAddrLabelArray(ProgramAddrMapFile, ProgramLabelMapFile, memfilename, WALLY_DIR, ProgramAddrLabelArray);
end end
`ifdef VERILATOR // this macro is defined when verilator is used `ifdef VERILATOR // this macro is defined when verilator is used
// Simulator Verilator has an issue that the validate logic below slows runtime 110x if it is // Simulator Verilator has an issue that the validate logic below slows runtime 110x if it is
@ -931,10 +934,15 @@ endmodule
task automatic updateProgramAddrLabelArray; task automatic updateProgramAddrLabelArray;
/* verilator lint_off WIDTHTRUNC */ /* verilator lint_off WIDTHTRUNC */
/* verilator lint_off WIDTHEXPAND */ /* verilator lint_off WIDTHEXPAND */
input string ProgramAddrMapFile, ProgramLabelMapFile; input string ProgramAddrMapFile, ProgramLabelMapFile, memfilename, WALLY_DIR;
inout integer ProgramAddrLabelArray [string]; inout integer ProgramAddrLabelArray [string];
// Gets the memory location of begin_signature // Gets the memory location of begin_signature
integer ProgramLabelMapFP, ProgramAddrMapFP; integer ProgramLabelMapFP, ProgramAddrMapFP;
string cmd;
// if memfile, label, or addr files are out of date or don't exist, generate them
cmd = {"make -f ", WALLY_DIR, "/testbench/Makefile ", memfilename, " ", ProgramAddrMapFile};
$system(cmd);
ProgramLabelMapFP = $fopen(ProgramLabelMapFile, "r"); ProgramLabelMapFP = $fopen(ProgramLabelMapFile, "r");
ProgramAddrMapFP = $fopen(ProgramAddrMapFile, "r"); ProgramAddrMapFP = $fopen(ProgramAddrMapFile, "r");