updates ehrenberg devices and BSP

env/common-gcc.mk

@@ -4,7 +4,7 @@ _MK_COMMON := # defined
 TL_TARGET?=all
 
 .PHONY: $(TL_TARGET)
-$(TL_TARGET): $(TARGET)
+$(TL_TARGET): $(TARGET).elf
 
 ENV_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
 BSP_BASE=$(ENV_DIR)/..
@@ -63,8 +63,7 @@ OBJDUMP := $(TOOL_DIR)$(TRIPLET)-objdump
 OBJCOPY := $(TOOL_DIR)$(TRIPLET)-objcopy
 
 ifndef NO_DEFAULT_LINK
-$(TARGET): $(LINK_OBJS) $(LINK_DEPS)
-	echo LINK_OBJS: $(LINK_OBJS)
+$(TARGET).elf: $(LINK_OBJS) $(LINK_DEPS)
 	$(LD) $(LINK_OBJS) $(LDFLAGS) $(LIBWRAP_LDFLAGS) $(LIBWRAP) $(LD_SCRIPT) -o $@
 	$(OBJDUMP) -d -S $@ > $(TARGET).dis
 endif

env/ehrenberg/rom.lds

@@ -0,0 +1,170 @@
+OUTPUT_ARCH( "riscv" )
+
+ENTRY( _start )
+
+MEMORY
+{
+  rom (rxai!w) : ORIGIN = 0xF0080000, LENGTH = 1k
+  ram (wxa!ri) : ORIGIN = 0x80000000, LENGTH = 32k
+}
+
+PHDRS
+{
+  rom PT_LOAD;
+  ram_init PT_LOAD;
+  ram PT_NULL;
+}
+
+SECTIONS
+{
+  __stack_size = DEFINED(__stack_size) ? __stack_size : 2K;
+
+  .init ORIGIN(rom)        :
+  {
+    KEEP (*(SORT_NONE(.init)))
+  } >rom AT>rom :rom
+
+  .text           :
+  {
+    *(.text.unlikely .text.unlikely.*)
+    *(.text.startup .text.startup.*)
+    *(.text .text.*)
+    *(.gnu.linkonce.t.*)
+  } >rom AT>rom :rom
+
+  .fini           :
+  {
+    KEEP (*(SORT_NONE(.fini)))
+  } >rom AT>rom :rom
+
+  PROVIDE (__etext = .);
+  PROVIDE (_etext = .);
+  PROVIDE (etext = .);
+
+  .rodata         :
+  {
+    *(.rdata)
+    *(.rodata .rodata.*)
+    *(.gnu.linkonce.r.*)
+  } >rom AT>rom :rom
+
+  . = ALIGN(4);
+
+  .preinit_array  :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >rom AT>rom :rom
+
+  .init_array     :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+    KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >rom AT>rom :rom
+
+  .fini_array     :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
+    KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >rom AT>rom :rom
+
+  .ctors          :
+  {
+    /* gcc uses crtbegin.o to find the start of
+       the constructors, so we make sure it is
+       first.  Because this is a wildcard, it
+       doesn't matter if the user does not
+       actually link against crtbegin.o; the
+       linker won't look for a file to match a
+       wildcard.  The wildcard also means that it
+       doesn't matter which directory crtbegin.o
+       is in.  */
+    KEEP (*crtbegin.o(.ctors))
+    KEEP (*crtbegin?.o(.ctors))
+    /* We don't want to include the .ctor section from
+       the crtend.o file until after the sorted ctors.
+       The .ctor section from the crtend file contains the
+       end of ctors marker and it must be last */
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*(.ctors))
+  } >rom AT>rom :rom
+
+  .dtors          :
+  {
+    KEEP (*crtbegin.o(.dtors))
+    KEEP (*crtbegin?.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*(.dtors))
+  } >rom AT>rom :rom
+
+  .lalign         :
+  {
+    . = ALIGN(4);
+    PROVIDE( _data_lma = . );
+  } >rom AT>rom :rom
+
+  .dalign         :
+  {
+    . = ALIGN(4);
+    PROVIDE( _data = . );
+  } >ram AT>rom :ram_init
+
+  .data          :
+  {
+    *(.data .data.*)
+    *(.gnu.linkonce.d.*)
+  } >ram AT>rom :ram_init
+
+  .srodata        :
+  {
+    PROVIDE( __global_pointer$ = . + 0x800 );
+    *(.srodata.cst16)
+    *(.srodata.cst8)
+    *(.srodata.cst4)
+    *(.srodata.cst2)
+    *(.srodata .srodata.*)
+  } >ram AT>rom :ram_init
+
+  .sdata          :
+  {
+    *(.sdata .sdata.*)
+    *(.gnu.linkonce.s.*)
+  } >ram AT>rom :ram_init
+
+  . = ALIGN(4);
+  PROVIDE( _edata = . );
+  PROVIDE( edata = . );
+
+  PROVIDE( _fbss = . );
+  PROVIDE( __bss_start = . );
+  .bss            :
+  {
+    *(.sbss*)
+    *(.gnu.linkonce.sb.*)
+    *(.bss .bss.*)
+    *(.gnu.linkonce.b.*)
+    *(COMMON)
+    . = ALIGN(4);
+  } >ram AT>ram :ram
+
+  . = ALIGN(8);
+  PROVIDE( _end = . );
+  PROVIDE( end = . );
+
+  .stack ORIGIN(ram) + LENGTH(ram) - __stack_size :
+  {
+    PROVIDE( _heap_end = . );
+    . = __stack_size;
+    PROVIDE( _sp = . );
+  } >ram AT>ram :ram
+
+  PROVIDE( tohost = 0xfffffff0 );
+  PROVIDE( fromhost = 0xfffffff8 );
+}

env/start.S

@@ -37,11 +37,11 @@ _start:
 2:
 
 	/* Call global constructors */
-//#ifdef HAVE_INIT_FINI
+#ifndef HAVE_NO_INIT_FINI
 	la a0, __libc_fini_array
 	call atexit
 	call __libc_init_array
-//#endif
+#endif
 #ifndef __riscv_float_abi_soft
 	/* Enable FPU */
 	li t0, MSTATUS_FS