zig 0.13.0

Author: markfirmware

.gitpod.yml

@@ -10,14 +10,14 @@ tasks:
       ./tools/update-tools.sh
       && ln -s $(pwd)/tools /workspace/tools
       && export PATH=./tools/zig:$PATH
-      && zig build
+      && ./build.sh
     command:
       export PATH=./tools/zig:$PATH
       && ./tools/update-qemu.sh
       && mkdir -p ~/.config
       && ln -s $(pwd)/zls.json ~/.config/zls.json
       && echo zig build qemu ...
-      && zig build qemu
+      && ./qemu.sh
 
 vscode:
   extensions:

build.sh

@@ -1,21 +1,9 @@
 #!/bin/bash
 set -e
 
-echo zig version $(zig version)
-#touch symbols.txt
-zig build
-echo missing llvm-objdump-6.0
-#llvm-objdump-14 --source -disassemble-all -section-headers -t  zig-out/bin/main > main.asm
-#grep '^00000000.*:$' main.asm | sed 's/^00000000//' > symbols.txt
-#zig build
+export PATH=tools/zig:$PATH
+NAME=main
 
-#ARCH=thumbv6m
-#SOURCE=$(ls mission0*.zig)
-#llvm-objdump -x --source main > asm.$ARCH
-#set +e
-#grep unknown asm.$ARCH | grep -v '00 00 00 00'
-#grep 'q[0-9].*#' asm.$ARCH | egrep -v '#(-|)(16|32|48|64|80|96|112|128)'
-#set -e
-
-# ls -l zig-out/bin/main.img symbols.txt
-ls -l zig-out/bin/main.img
+zig fmt *.zig
+zig build-exe -target thumb-freestanding-none -mcpu cortex_m0 --script linker.ld -ffunction-sections $NAME.zig
+zig objcopy -O hex $NAME $NAME.hex

build.zig

@@ -3,15 +3,18 @@ MEMORY {
     ram : ORIGIN = 0x20000000, LENGTH = 0x4000
 }
 SECTIONS {
+    /DISCARD/ : {
+        *(.ARM.exidx)
+    }
     .flash : {
         _start = .;
         KEEP(*(.vector_table))
         *(.text.*)
         *(.rodata)
         *(.rodata.*)
-        _ram_data_initial_values = .;
+        _address_in_flash_of_initial_ram_data = .;
     } > flash
-    .ram_data : AT(_ram_data_initial_values) {
+    .ram_data : AT(_address_in_flash_of_initial_ram_data) {
         _ram_data_start = .;
         *(.data)
         _ram_data_end = .;
@@ -21,8 +24,4 @@ SECTIONS {
         *(.bss)
         _ram_bss_end = .;
     } > ram
-    # .ARM.exidx must be discarded until "Provide -fno-unwind-tables" is resolved https://github.com/ziglang/zig/issues/5464
-    /DISCARD/ : {
-        *(.ARM.exidx)
-    }
 }