* [RISC-V-Qemu-virt_GCC Demo] Add picolibc support
Add minimal picolibc support:
* Use --specs=picolibc.specs to direct gcc at picolibc
* Use -DPICOLIBC_INTEGER_PRINTF_SCANF to enable smaller printf implementation
* Enable configUSE_PICOLIBC_TLS for thread local storage
* Add TLS section to linker script
Signed-off-by: Keith Packard <keithpac@amazon.com>
* [CORTEX_MPU_M3_MPS2_QEMU_GCC Demo] Add picolibc support
Add minimal picolibc support to this demo
* Use --specs=picolibc.specs to direct gcc at picolibc
* Use -DPICOLIBC_INTEGER_PRINTF_SCANF to enable smaller printf implementation
* Enable configUSE_PICOLIBC_TLS for thread local storage
* Add TLS section to linker script
* Replace newlib syscall hooks with picolibc ones
Signed-off-by: Keith Packard <keithpac@amazon.com>
---------
Signed-off-by: Keith Packard <keithpac@amazon.com>
Co-authored-by: Keith Packard <keithpac@amazon.com>
1. miss debug info in assembly code
RISC-V-spike-htif_GCC
LDFLAGS add arch and abi info for linker
for riscv64-unknown-elf multilib, if there is no arch and abi
info, will link to default lib and have below error
target emulation `elf32-littleriscv' does not match `elf64-littleriscv'
use CFLAGS to replace ASFLAGS when compile assembly code
because DEBUG flag is added in CFLAGS, if we use ASFLAGS to compile
assembly code, there is no debug info in assembly code objfile
2. binutils 2.39 ld warn 'has a LOAD segment with RWX permissions'
RISC-V-Qemu-virt_GCC
RISC-V-spike-htif_GCC
RISC-V_RV32_QEMU_VIRT_GCC
3. fix build fail
RISC-V_RV32_QEMU_VIRT_GCC
Signed-off-by: Eric Chan <e14002270@gmail.com>
* Add Makefile project for RISC-V QEMU virtpc
This patch adds simple demo directory for QEMU virtpc machine.
A demo just prints Tx/Rx message of queue to serial port, use no
other hardware and use only primary core (currently hart0).
Other cores are simply going to wfi state and execute nothing else.
Example command is:
qemu-system-riscv32 -nographic -machine virt -net none \
-chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -bios none \
-kernel demo.elf -smp cpus=2 -s
* Fix copyright and URLS of FreeRTOS
* Fix Makefile
* Add Readme.md
* Separate blinky demo from main code
Co-authored-by: alfred gedeon <alfred2g@hotmail.com>
Co-authored-by: Cobus van Eeden <35851496+cobusve@users.noreply.github.com>
Co-authored-by: Carl Lundin <53273776+lundinc2@users.noreply.github.com>
