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Build cosim shared library without VCS access #2

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Build cosim shared library without VCS access #2

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fe20f18
Build cosim shared library without VCS access
Apr 20, 2024
5706280
Allow building cosimulation library without VCS
Apr 20, 2024
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4 changes: 3 additions & 1 deletion src/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@ if(DEFINED ENV{VCS_HOME})
message(STATUS "Detected VCS...")
message(STATUS "Building DPI/VPI cosimulation library")
add_subdirectory(cosim)
add_definitions(-DUSING_VCS)
else()
message(WARNING "VCS not detected, skipping build of cosimulation library...")
message(WARNING "VCS not detected, building cosimulation library without VCS support")
add_subdirectory(cosim)
endif()
4 changes: 4 additions & 0 deletions src/cosim/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
if(DEFINED ENV{VCS_HOME})
add_definitions(-DUSING_VCS)
endif()

add_library(spect_iss_dpi SHARED
spect_iss_dpi.cpp
)
Expand Down
53 changes: 52 additions & 1 deletion src/cosim/spect_iss_dpi.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -17,13 +17,16 @@
#include "CpuProgram.h"
#include "HexHandler.h"

#include "vpi_user.h"
#ifdef USING_VCS
#include "vpi_user.h"
#endif

#include "spect_iss_dpi.h"

spect::Compiler *compiler = nullptr;
spect::CpuModel *model = nullptr;

#ifdef USING_VCS
#define DPI_CALL_LOG_ENTER \
assert (model != nullptr && \
MODEL_LABEL " Model not initalized. Did you forget to call 'spect_dpi_init'?"); \
Expand All @@ -34,11 +37,28 @@ spect::CpuModel *model = nullptr;
if (model->verbosity_ >= VERBOSITY_HIGH) \
vpi_printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__); \

#else
#define DPI_CALL_LOG_ENTER \
assert (model != nullptr && \
MODEL_LABEL " Model not initalized. Did you forget to call 'spect_dpi_init'?"); \
if (model->verbosity_ >= VERBOSITY_HIGH) \
printf("%s DPI function '%s' entered.\n", MODEL_LABEL, __func__); \

#define DPI_CALL_LOG_EXIT \
if (model->verbosity_ >= VERBOSITY_HIGH) \
printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__); \

#endif

extern "C" {

uint32_t spect_dpi_init()
{
#ifdef USING_VCS
vpi_printf("%s DPI function '%s' entered.\n", MODEL_LABEL, __func__);
#else
printf("%s DPI function '%s' entered.\n", MODEL_LABEL, __func__);
#endif

uint32_t rv = 0;
try {
Expand All @@ -47,25 +67,46 @@ extern "C" {

// According to C standard, typecasting function pointer is undefined behavior,
// but we only get rid of "const", so we hope its fine :)
#ifdef USING_VCS
model->print_fnc = (int (*)(const char *format, ...))(&(vpi_printf));
compiler->print_fnc = (int (*)(const char *format, ...))(&(vpi_printf));
#else
model->print_fnc = (int (*)(const char *format, ...))(&(printf));
compiler->print_fnc = (int (*)(const char *format, ...))(&(printf));
#endif
} catch (const std::bad_alloc& e) {
#ifdef USING_VCS
vpi_printf("%s Failed to initialize SPECT DPI model: %s\n", MODEL_LABEL, e.what());
#else
printf("%s Failed to initialize SPECT DPI model: %s\n", MODEL_LABEL, e.what());
#endif
rv = 1;
}

#ifdef USING_VCS
vpi_printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__);
#else
printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__);
#endif
return rv;
}

void spect_dpi_exit()
{
#ifdef USING_VCS
vpi_printf("%s DPI function '%s' entered.\n", MODEL_LABEL, __func__);
#else
printf("%s DPI function '%s' entered.\n", MODEL_LABEL, __func__);
#endif

delete model;
delete compiler;

#ifdef USING_VCS
vpi_printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__);
#else
printf("%s DPI function '%s' exiting.\n", MODEL_LABEL, __func__);
#endif
}

void spect_dpi_reset()
Expand Down Expand Up @@ -337,8 +378,13 @@ extern "C" {
internal_parity_type);

} catch(std::system_error &exception) {
#ifdef USING_VCS
vpi_printf("%s Failed to compile program with exit code: %d\n",
MODEL_LABEL, exception.code().value());
#else
printf("%s Failed to compile program with exit code: %d\n",
MODEL_LABEL, exception.code().value());
#endif
err = exception.code().value();
}

Expand All @@ -354,7 +400,12 @@ extern "C" {
if (s_start_addr)
rv = s_start_addr->val_;
else
#ifdef USING_VCS
vpi_printf("%s: '%s' symbol not defined! Returning 0.\n", MODEL_LABEL, START_SYMBOL);
#else
printf("%s: '%s' symbol not defined! Returning 0.\n", MODEL_LABEL, START_SYMBOL);
#endif

DPI_CALL_LOG_EXIT
return rv;
}
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1 change: 1 addition & 0 deletions test/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ if(DEFINED ENV{VCS_HOME})
message(STATUS "Detected VCS...")
message(STATUS "Building DPI library tests")
add_subdirectory(dpi)
add_definitions(-DUSING_VCS)
else()
message(WARNING "VCS not detected, skipping build of DPI library tests...")
endif()
Expand Down