Display test

5 months ago · b882d5350c
parent 327766952e
commit b882d5350c
8 changed files with 218 additions and 0 deletions
--- a/test/.cargo/config.toml
+++ b/test/.cargo/config.toml
@ -0,0 +1,8 @@
+[build]
+target = "riscv32i-unknown-none-elf"
+
+[target.riscv32i-unknown-none-elf]
+rustflags = [
+  "-C", "link-arg=-Tmemory.x",
+  "-C", "link-arg=-Tlink.x",
+]
--- a/test/.gitignore
+++ b/test/.gitignore
@ -0,0 +1,3 @@
+/target
+text.bin
+rodata.bin
--- a/test/.vscode/settings.json
+++ b/test/.vscode/settings.json
@ -0,0 +1,5 @@
+{
+    "rust-analyzer.check.allTargets": false,
+    "rust-analyzer.cargo.allTargets": false,
+    "rust-analyzer.cargo.target": "riscv32i-unknown-none-elf"
+}
--- a/test/Cargo.lock
+++ b/test/Cargo.lock
@ -0,0 +1,116 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "critical-section"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
+
+[[package]]
+name = "embedded-hal"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "361a90feb7004eca4019fb28352a9465666b24f840f5c3cddf0ff13920590b89"
+
+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "riscv"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ea8ff73d3720bdd0a97925f0bf79ad2744b6da8ff36be3840c48ac81191d7a7"
+dependencies = [
+ "critical-section",
+ "embedded-hal",
+ "paste",
+ "riscv-macros",
+ "riscv-pac",
+]
+
+[[package]]
+name = "riscv-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f265be5d634272320a7de94cea15c22a3bfdd4eb42eb43edc528415f066a1f25"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "riscv-pac"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8188909339ccc0c68cfb5a04648313f09621e8b87dc03095454f1a11f6c5d436"
+
+[[package]]
+name = "riscv-rt"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "753f1bd7eb4e0003cec5e2fb60ea8e253a71d0b041bc7d1ba0fffe22e3c0294d"
+dependencies = [
+ "riscv",
+ "riscv-pac",
+ "riscv-rt-macros",
+]
+
+[[package]]
+name = "riscv-rt-macros"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30f19a85fe107b65031e0ba8ec60c34c2494069fe910d6c297f5e7cb5a6f76d0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.93"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c786062daee0d6db1132800e623df74274a0a87322d8e183338e01b3d98d058"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "test"
+version = "0.1.0"
+dependencies = [
+ "riscv",
+ "riscv-rt",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
--- a/test/Cargo.toml
+++ b/test/Cargo.toml
@ -0,0 +1,19 @@
+[package]
+name = "test"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+riscv = "0.12.1"
+riscv-rt = "0.13.0"
+
+# https://docs.rust-embedded.org/book/unsorted/speed-vs-size.html
+[profile.release]
+# symbols are nice and they don't increase the size on Flash
+debug = true
+codegen-units = 1
+opt-level = "z"
+
+[profile.dev.package."*"]
+codegen-units = 1
+opt-level = "z"
--- a/test/Makefile
+++ b/test/Makefile
@ -0,0 +1,20 @@
+NAME=test
+
+default: extract
+
+build:
+	cargo build --release
+
+extract: build
+	riscv32-elf-objcopy -O binary --only-section=.text "target/riscv32i-unknown-none-elf/release/${NAME}" ~/text.bin
+	riscv32-elf-objcopy -O binary --only-section=.rodata "target/riscv32i-unknown-none-elf/release/${NAME}" ~/rodata.bin
+
+size: extract
+	cargo size --release -- -A
+
+disassemble: build
+	riscv32-elf-objdump -Cd "target/riscv32i-unknown-none-elf/release/${NAME}" | less
+
+clean:
+	cargo clean
+	rm text.bin
--- a/test/memory.x
+++ b/test/memory.x
@ -0,0 +1,14 @@
+MEMORY
+{
+  INST  : ORIGIN = 0x00000000, LENGTH = 256K
+  IO    : ORIGIN = 0x20000000, LENGTH = 1K
+  CONST : ORIGIN = 0x40000000, LENGTH = 16K
+  RAM   : ORIGIN = 0x80000000, LENGTH = 16K
+}
+
+REGION_ALIAS("REGION_TEXT", INST);
+REGION_ALIAS("REGION_RODATA", CONST);
+REGION_ALIAS("REGION_DATA", RAM);
+REGION_ALIAS("REGION_BSS", RAM);
+REGION_ALIAS("REGION_HEAP", RAM);
+REGION_ALIAS("REGION_STACK", RAM);
--- a/test/src/main.rs
+++ b/test/src/main.rs
@ -0,0 +1,33 @@
+#![no_std]
+#![no_main]
+
+use core::panic::PanicInfo;
+use riscv_rt::entry;
+
+#[panic_handler]
+fn panic_handler(_info: &PanicInfo) -> ! {
+    unsafe {
+        OUTPUT.write_volatile(0xDEADC0DE);
+    }
+    loop {}
+}
+
+const OUTPUT: *mut u32 = 0x2000_0000 as *mut u32;
+const BTNS: *mut u8 = 0x2000_0008 as *mut u8;
+const SCREEN: *mut u32 = 0x2000_0080 as *mut u32;
+
+#[entry]
+fn main() -> ! {
+    loop {
+        unsafe {
+            SCREEN.write_volatile(0b101);
+        }
+        for i in 0..31 {
+            unsafe {
+                let mut x = SCREEN.offset(i).read_volatile();
+                x <<= 1;
+                SCREEN.offset(i+1).write_volatile(x);
+            }
+        }
+    }
+}