sw: Adding placeholder for hero libomptarget-device library

target/sim/sw/device/Makefile

@@ -7,6 +7,7 @@
 # Add user applications to APPS variable
 APPS  = blas/axpy
 APPS += blas/gemm
+APPS += libomptarget_device
 
 TARGET ?= all
 

target/sim/sw/device/apps/common.mk

@@ -99,6 +99,9 @@ $(BUILDDIR):
 $(DEP): $(SRCS) | $(BUILDDIR)
 	$(RISCV_CC) $(RISCV_CFLAGS) -MM -MT '$(ELF)' $< > $@
 
+$(BUILDDIR)/%.o: $(SRC_DIR)/%.c | $(BUILDDIR)
+	$(RISCV_CC) $(RISCV_CFLAGS) -c $< -o $@
+
 $(ELF): $(DEP) $(LD_SRCS) | $(BUILDDIR)
 	$(RISCV_CC) $(RISCV_CFLAGS) $(RISCV_LDFLAGS) $(SRCS) -o $@
 

target/sim/sw/device/apps/libomptarget_device/Makefile

@@ -0,0 +1,30 @@
+# Copyright 2023 ETH Zurich and University of Bologna.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Cyril Koenig <[email protected]>
+
+# Usage of absolute paths is required to externally include this Makefile
+MK_DIR   := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
+SRC_DIR  := $(realpath $(MK_DIR)/src)
+
+APP     ?= omptarget_device
+SRCS    ?= $(SRC_DIR)/main.c
+INCDIRS += $(SRC_DIR)
+
+.PHONY: clean
+clean:
+
+include ../common.mk
+
+OBJS    := $(subst $(SRC_DIR), $(BUILDDIR), $(SRCS:.c=.o))
+LIB     := $(BUILDDIR)/libomptarget_device.a
+
+$(BUILDDIR)/origin.ld: | $(BUILDDIR)
+	echo "L3_ORIGIN = 0x80000000;" > $(BUILDDIR)/origin.ld
+
+$(LIB): $(OBJS) | $(BUILDDIR)
+	$(RISCV_AR) $(RISCV_ARFLAGS) $@ $^
+
+# For this target, only build the library
+all: $(LIB)

target/sim/sw/device/apps/libomptarget_device/link.ld

@@ -0,0 +1,181 @@
+OUTPUT_ARCH(riscv)
+ENTRY( _start )
+MEMORY
+{
+  LOCAL        : ORIGIN = 0x70010000, LENGTH = 0x70000
+  L2           : ORIGIN = 0x80000000, LENGTH = 0x0fffffff
+}
+
+
+
+SECTIONS
+{
+  .init :
+  {
+    . = ALIGN(4);
+    KEEP( *(.init) )
+  } > LOCAL
+
+
+  .fini :
+  {
+    . = ALIGN(4);
+    KEEP( *(.fini) )
+  } > LOCAL
+
+  .preinit_array : {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } > LOCAL
+
+  .init_array : {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    KEEP(*(.ctors.start))
+    KEEP(*(.ctors))
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array ))
+    LONG(0)
+    __CTOR_END__ = .;
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } > LOCAL
+
+  .fini_array : {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    KEEP(*(.dtors.start))
+    KEEP(*(.dtors))
+    LONG(0)
+    __DTOR_END__ = .;
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array ))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } > LOCAL
+
+  .boot : {
+    . = ALIGN(4);
+    *(.boot)
+    *(.boot.data)
+  } > LOCAL
+
+  .rodata : {
+    . = ALIGN(4);
+    *(.rodata);
+    *(.rodata.*)
+    *(.srodata);
+    *(.srodata.*)
+    *(.eh_frame*)
+  } > LOCAL
+
+  .shbss : {
+    . = ALIGN(4);
+    *(.shbss)
+  } > LOCAL
+
+  .talias : {
+  } > LOCAL
+
+  .gnu.offload_funcs : {
+    . = ALIGN(4);
+    KEEP(*(.gnu.offload_funcs))
+  } > LOCAL
+
+  .gnu.offload_vars : {
+    . = ALIGN(4);
+    KEEP(*(.gnu.offload_vars))
+  } > LOCAL
+
+  .stack : {
+    . = ALIGN(4);
+    . = ALIGN(16);
+    stack_start = .;
+    . = . + 0x1000;
+    stack = .;
+  } > LOCAL
+
+  .data : {
+    . = ALIGN(4);
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data_fc)
+    *(.data_fc.*)
+    *(.data);
+    *(.data.*)
+    *(.sdata);
+    *(.sdata.*)
+    *(.heapl2ram)
+    *(.fcTcdm)
+    *(.fcTcdm.*)
+    *(.fcTcdm_g)
+    *(.fcTcdm_g.*)
+    . = ALIGN(4);
+    edata  =  .;
+    _edata  =  .;
+  } > LOCAL
+
+  .bss : {
+    . = ALIGN(8);
+    _bss_start = .;
+    *(.bss)
+    *(.bss.*)
+    *(.sbss)
+    *(.sbss.*)
+    *(COMMON)
+    . = ALIGN(4);
+    _bss_end = .;
+  } > LOCAL
+
+  __l2_priv0_end = ALIGN(4);
+
+  /*
+   * LOCAL PRIVATE BANK1
+   *
+   * Contains FC code
+   */
+
+  .vectors MAX(0x60010000,ALIGN(256)) :
+  {
+    __irq_vector_base = .;
+    KEEP(*(.vectors))
+  } > LOCAL
+
+  .text :
+  {
+    . = ALIGN(4);
+    _stext = .;
+    *(.text)
+    *(.text.*)
+    _etext  =  .;
+    *(.lit)
+    *(.shdata)
+    _endtext = .;
+    . = ALIGN(4);
+  } > LOCAL
+
+  __l2_priv1_end = ALIGN(4);
+
+  /*
+   * L2 SHARED BANKS
+   *
+   * Contains other data such as peripheral data and cluster code and data
+   */
+
+  .l2_data :
+  {
+    . = ALIGN(4);
+    *(.l2_data)
+    *(.l2_data.*)
+    *(.data_fc_shared)
+    *(.data_fc_shared.*)
+    . = ALIGN(4);
+  } > L2
+
+  __l2_shared_end = ALIGN(4);
+
+}

target/sim/sw/device/apps/libomptarget_device/src/main.c

@@ -0,0 +1,4 @@
+
+int main() {
+    return 0;
+}