basic physical memory page allocator

Signed-off-by: Matthew Wozniak <me@woz.blue>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/ld/virt.ld b/src/ld/virt.ld
new file mode 100644
index 0000000..33532c4
--- /dev/null
+++ b/src/ld/virt.ld
@@ -0,0 +1,46 @@
+OUTPUT_ARCH( "riscv" )
+ENTRY( _start )
+
+MEMORY
+{
+	ram : org = 0x80000000, len = 128M
+}
+
+SECTIONS
+{
+	.text : {
+		_text_start = .;
+		*(.text.init)
+		*(.text .text.*)
+		_text_end = .;
+	} >ram
+
+	.rodata : {
+		_rodata_start = .;
+		*(.rodata .rodata.*)
+		_rodata_end = .;
+	} >ram
+
+	.data : {
+		. = ALIGN(4096);
+		_data_start = .;
+		*(.sdata .sdata.*)
+		*(.data .data.*)
+		_data_end = .;
+	} >ram
+
+	.bss : {
+		_bss_start = .;
+		*(.sbss .sbss.*)
+		*(.bss .bss.*)
+		_bss_end = .;
+	} >ram
+
+	. = ALIGN(4096);
+	_stack_start = .;
+	_stack_end = . + 0x80000;
+	_heap_start = _stack_end;
+	_memory_end = ORIGIN(ram) + LENGTH(ram);
+	_heap_size = _memory_end - _heap_start;
+}
+