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fw: Build qemu_firmware with different linker script

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The qemu_firmware is too large for the real hardware's 8k of ROM. The
emulator, however, has lots of ROM. Use a different linker script for
to reflect this.
This commit is contained in:
Michael Cardell Widerkrantz 2025-05-13 15:49:19 +02:00 • committed by Mikael Ågren
parent e935195846
commit 48108cb3a2
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GPG key ID: E02DA3D397792C46
2 changed files with 94 additions and 2 deletions
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9
hw/application_fpga/Makefile
View file

@ -185,6 +185,11 @@ LDFLAGS = \
-Wl,--cref,-M \
-L $(LIBDIR) -lcommon -lblake2s
QEMU_LDFLAGS = \
-T $(P)/fw/tk1/qemu_firmware.lds \
-Wl,--cref,-M \
-L $(LIBDIR) -lcommon -lblake2s
# Common libraries the firmware and testfw depend on. See
# https://github.com/tillitis/tkey-libs/
.PHONY: tkey-libs
@ -206,8 +211,8 @@ qemu_firmware.elf: CFLAGS += -DQEMU_DEBUG
qemu_firmware.elf: ASFLAGS += -DQEMU_DEBUG
qemu_firmware.elf: CFLAGS += -DQEMU_SYSCALL
qemu_firmware.elf: ASFLAGS += -DQEMU_SYSCALL
qemu_firmware.elf: firmware.elf
mv firmware.elf qemu_firmware.elf
qemu_firmware.elf: tkey-libs $(FIRMWARE_OBJS) $(P)/fw/tk1/qemu_firmware.lds
$(CC) $(CFLAGS) $(FIRMWARE_OBJS) $(QEMU_LDFLAGS) -o $@ > $(basename $@).map
# Create compile_commands.json for clangd and LSP
.PHONY: clangd

87
hw/application_fpga/fw/tk1/qemu_firmware.lds Normal file
View file

@ -0,0 +1,87 @@
/*
* Copyright (C) 2022, 2023 - Tillitis AB
* SPDX-License-Identifier: GPL-2.0-only
*/
OUTPUT_ARCH("riscv")
ENTRY(_start)
/* Define stack size */
STACK_SIZE = 3000;
MEMORY
{
ROM (rx) : ORIGIN = 0x00000000, LENGTH = 128k
FWRAM (rw) : ORIGIN = 0xd0000000, LENGTH = 0xF00 /* 3840 B */
RESETINFO (rw) : ORIGIN = 0xd0000F00, LENGTH = 0x100 /* 256 B (part of FW_RAM area) */
RAM (rwx) : ORIGIN = 0x40000000, LENGTH = 0x20000 /* 128 KB */
}
SECTIONS
{
.text.init :
{
*(.text.init)
} >ROM
.htif :
{
. = ALIGN(0x00000000);
*(.htif)
} >ROM
.text :
{
. = ALIGN(4);
_stext = .;
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.srodata) /* .srodata sections (constants, strings, etc.) */
*(.srodata*) /* .srodata* sections (constants, strings, etc.) */
. = ALIGN(4);
_etext = .;
} >ROM
.stack (NOLOAD) :
{
. = ALIGN(16);
_sstack = .;
. += STACK_SIZE;
. = ALIGN(16);
_estack = .;
} >FWRAM
.data :
{
. = ALIGN(4);
_sdata = .;
*(.data) /* .data sections */
*(.data*) /* .data* sections */
*(.sdata) /* .sdata sections */
*(.sdata*) /* .sdata* sections */
. = ALIGN(4);
_edata = .;
} >FWRAM AT>ROM
_sidata = LOADADDR(.data);
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .;
*(.bss)
*(.bss*)
*(.sbss)
*(.sbss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
} >FWRAM
}
_sfwram = ORIGIN(FWRAM);
_efwram = ORIGIN(FWRAM) + LENGTH(FWRAM);
_sresetinfo = ORIGIN(RESETINFO);
_eresetinfo = ORIGIN(RESETINFO) + LENGTH(RESETINFO);