software: Avoid libase renaming to libutils/libcomm and keep readchar/putsnonl retro-compatibility.

We'll maybe do it but that's probably not the right time. We have to make
the picolibc switch as smooth as possible for users (and so avoid update
as much as possible).

In the long term, it would be good to provide a LiteX C SDK, so we'll make
eventual changes when doing this.

litex/soc/integration/builder.py

@@ -43,8 +43,7 @@ soc_software_packages = [
     "libcompiler_rt",
 
     # LiteX cores.
-    "libutils",
-    "libcomm",
+    "libbase",
 
     # LiteX Ecosystem cores.
     "libfatfs",

litex/soc/software/bios/boot.c

@@ -21,12 +21,12 @@
 #include "sfl.h"
 #include "boot.h"
 
-#include <libcomm/uart.h>
+#include <libbase/uart.h>
 
-#include <libutils/console.h>
-#include <libutils/crc.h>
-#include <libutils/jsmn.h>
-#include <libutils/progress.h>
+#include <libbase/console.h>
+#include <libbase/crc.h>
+#include <libbase/jsmn.h>
+#include <libbase/progress.h>
 
 #include <libliteeth/udp.h>
 #include <libliteeth/tftp.h>

litex/soc/software/bios/cmds/cmd_bios.c

@@ -4,7 +4,7 @@
 #include <stdlib.h>
 #include <system.h>
 
-#include <libutils/crc.h>
+#include <libbase/crc.h>
 
 #include <generated/csr.h>
 

litex/soc/software/bios/cmds/cmd_i2c.c

@@ -5,7 +5,7 @@
 #include <stdbool.h>
 
 #include <generated/csr.h>
-#include <libcomm/i2c.h>
+#include <libbase/i2c.h>
 
 #include "../command.h"
 #include "../helpers.h"

litex/soc/software/bios/cmds/cmd_litedram.c

@@ -4,11 +4,11 @@
 #include <stdlib.h>
 #include <stdbool.h>
 #include <string.h>
-#include <libutils/memtest.h>
+#include <libbase/memtest.h>
 
 #include <generated/csr.h>
 #include <generated/mem.h>
-#include <libcomm/i2c.h>
+#include <libbase/i2c.h>
 
 #include <liblitedram/sdram.h>
 #include <liblitedram/bist.h>

litex/soc/software/bios/cmds/cmd_mem.c

@@ -2,7 +2,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <libutils/memtest.h>
+#include <libbase/memtest.h>
 
 #include <generated/csr.h>
 #include <generated/mem.h>

litex/soc/software/bios/helpers.c

@@ -5,8 +5,8 @@
 #include <stdio.h>
 #include <string.h>
 
-#include <libutils/console.h>
-#include <libutils/crc.h>
+#include <libbase/console.h>
+#include <libbase/crc.h>
 
 #include "readline.h"
 #include "helpers.h"

litex/soc/software/bios/isr.c

@@ -7,7 +7,7 @@
 #include <generated/csr.h>
 #include <generated/soc.h>
 #include <irq.h>
-#include <libcomm/uart.h>
+#include <libbase/uart.h>
 #include <stdio.h>
 
 #if defined(__microwatt__)

litex/soc/software/bios/main.c

@@ -31,11 +31,11 @@
 #include <generated/mem.h>
 #include <generated/git.h>
 
-#include <libutils/console.h>
-#include <libutils/crc.h>
+#include <libbase/console.h>
+#include <libbase/crc.h>
 
-#include <libcomm/spiflash.h>
-#include <libcomm/uart.h>
+#include <libbase/spiflash.h>
+#include <libbase/uart.h>
 
 #include <liblitedram/sdram.h>
 

litex/soc/software/common.mak

@@ -47,6 +47,7 @@ DEPFLAGS += -MD -MP
 #
 INCLUDES = -I$(PICOLIBC_DIRECTORY)/newlib/libc/tinystdio \
            -I$(PICOLIBC_DIRECTORY)/newlib/libc/include \
+           -I$(LIBBASE_DIRECTORY) \
            -I$(SOC_DIRECTORY)/software/include \
            -I$(SOC_DIRECTORY)/software \
            -I$(BUILDINC_DIRECTORY) \

litex/soc/software/demo/demo.py

@@ -8,7 +8,6 @@
 
 import os
 import argparse
-from distutils.dir_util import copy_tree
 
 def main():
     parser = argparse.ArgumentParser(description="LiteX Bare Metal Demo App.")
@@ -20,8 +19,7 @@ def main():
     os.makedirs("demo", exist_ok=True)
 
     # Copy contents to demo directory
-    src = os.path.abspath(os.path.dirname(__file__))
-    copy_tree(src, "demo")
+    os.system(f"cp {os.path.abspath(os.path.dirname(__file__))}/* demo")
 
     # Compile demo
     build_path = args.build_path if os.path.isabs(args.build_path) else os.path.join("..", args.build_path)

litex/soc/software/demo/donut.c

@@ -9,7 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <libutils/console.h>
+#include <libbase/console.h>
 
 #define R(mul,shift,x,y) \
   _=x; \

litex/soc/software/demo/isr.c

@@ -4,7 +4,7 @@
 #include <generated/csr.h>
 #include <generated/soc.h>
 #include <irq.h>
-#include <libcomm/uart.h>
+#include <libbase/uart.h>
 
 void isr(void);
 

litex/soc/software/demo/main.c

@@ -6,8 +6,8 @@
 #include <string.h>
 
 #include <irq.h>
-#include <libcomm/uart.h>
-#include <libutils/console.h>
+#include <libbase/uart.h>
+#include <libbase/console.h>
 #include <generated/csr.h>
 
 /*-----------------------------------------------------------------------*/

litex/soc/software/libbase/Makefile

@@ -6,21 +6,24 @@ OBJECTS =  \
 	crc32.o    \
 	system.o   \
 	progress.o \
-	memtest.o
+	memtest.o  \
+	uart.o     \
+	spiflash.o \
+	i2c.o
 
-all: libutils.a
+all: libbase.a
 
-libutils.a: $(OBJECTS)
-	$(AR) crs libutils.a $(OBJECTS)
+libbase.a: $(OBJECTS)
+	$(AR) crs libbase.a $(OBJECTS)
 
 # pull in dependency info for *existing* .o files
 -include $(OBJECTS:.o=.d)
 
-%.o: $(LIBUTILS_DIRECTORY)/%.c
+%.o: $(LIBBASE_DIRECTORY)/%.c
 	$(compile)
 
 .PHONY: all clean
 
 clean:
 	$(RM) $(OBJECTS)
-	$(RM) libutils.a .*~ *~
+	$(RM) libbase.a .*~ *~

litex/soc/software/libbase/console.h

@@ -12,6 +12,9 @@ typedef int (*console_read_nonblock_hook)(void);
 void console_set_write_hook(console_write_hook h);
 void console_set_read_hook(console_read_hook r, console_read_nonblock_hook rn);
 
+#define readchar getchar
+#define putsnonl(X) fputs(X, stdout)
+
 int readchar_nonblock(void);
 
 #ifdef __cplusplus

litex/soc/software/libc/or1k/exception.c

@@ -7,7 +7,7 @@ void isr(void);
 
 #ifdef __or1k__
 
-#include <libcomm/uart.h>
+#include <libbase/uart.h>
 
 #define EXTERNAL_IRQ 0x8
 

litex/soc/software/libc/stdio.c

@@ -16,8 +16,8 @@
 
 #include <stdio.h>
 
-#include <libutils/console.h>
-#include <libcomm/uart.h>
+#include <libbase/console.h>
+#include <libbase/uart.h>
 
 #include <generated/csr.h>
 

litex/soc/software/libcomm/Makefile

@@ -1,24 +0,0 @@
-include ../include/generated/variables.mak
-include $(SOC_DIRECTORY)/software/common.mak
-
-OBJECTS = \
-	uart.o     \
-	spiflash.o \
-	i2c.o      \
-
-all: libcomm.a
-
-libcomm.a: $(OBJECTS)
-	$(AR) crs libcomm.a $(OBJECTS)
-
-# pull in dependency info for *existing* .o files
--include $(OBJECTS:.o=.d)
-
-%.o: $(LIBCOMM_DIRECTORY)/%.c
-	$(compile)
-
-.PHONY: all clean
-
-clean:
-	$(RM) $(OBJECTS)
-	$(RM) libcomm.a .*~ *~

litex/soc/software/liblitedram/sdram.c

@@ -15,8 +15,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include <libutils/memtest.h>
-#include <libutils/lfsr.h>
+#include <libbase/memtest.h>
+#include <libbase/lfsr.h>
 
 #ifdef CSR_SDRAM_BASE
 #include <generated/sdram_phy.h>

litex/soc/software/libliteeth/tftp.c

@@ -10,7 +10,7 @@
 #include <stdint.h>
 #include <string.h>
 
-#include <libutils/progress.h>
+#include <libbase/progress.h>
 
 #include "udp.h"
 #include "tftp.h"

litex/soc/software/libliteeth/udp.c

@@ -14,7 +14,7 @@
 #include <stdio.h>
 #include <arpa/inet.h>
 #include <system.h>
-#include <libutils/crc.h>
+#include <libbase/crc.h>
 
 #include "udp.h"
 

litex/soc/software/liblitespi/spiflash.c

@@ -4,8 +4,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <libutils/memtest.h>
-#include <libutils/crc.h>
+#include <libbase/memtest.h>
+#include <libbase/crc.h>
 
 #include <generated/csr.h>
 #include <generated/mem.h>