--- Begin Message ---
Source: rust-generator
Version: 0.7.1-1
Severity: normal
Tags: patch
User: [email protected]
Usertags: loong64
Dear maintainers,
Compiling the rust-generator failed for loong64 in the Debian Package
Auto-Building environment.
Build failed 12 times.
The full log can be found at
https://buildd.debian.org/status/logs.php?pkg=rust-generator&ver=0.7.1-1&arch=loong64.
The rust-generator source package lacks LoongArch architecture support.
The support for loongarch64 has been submitted by heiher to upstream.
The detail message is as follows,
Description: Add support for LoongArch64 targets
Sigened-Off-By: heiher
Pull-Request: https://github.com/Xudong-Huang/generator-rs/pull/48
Please update upstream for rust-generator or consider the patch I have
attached.
And the rust-generator source package was compiled successfully on my
local loong64 rootfs environment.
```
......
dpkg-deb: building package 'librust-generator-dev' in
'../librust-generator-dev_0.7.1-1_loong64.deb'.
dpkg-genbuildinfo -O../rust-generator_0.7.1-1_loong64.buildinfo
dpkg-genchanges -O../rust-generator_0.7.1-1_loong64.changes
```
Would it be possible to include the support for LoongArch in the next
upload?
thanks,
Dandan Zhang
Description: Add support for LoongArch64 targets
Sigened-Off-By: heiher
Pull-Request: https://github.com/Xudong-Huang/generator-rs/pull/48
Last-Update: 2024-06-28
--- rust-generator-0.7.1.orig/README.md
+++ rust-generator-0.7.1/README.md
@@ -75,10 +75,11 @@ fn main() {
- x86_64 MacOs
- x86_64 Windows
- aarch64 Linux
+ - loongarch64 Linux
## License
This project is licensed under either of the following, at your option:
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
- * MIT License ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
\ No newline at end of file
+ * MIT License ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
--- rust-generator-0.7.1.orig/build.rs
+++ rust-generator-0.7.1/build.rs
@@ -22,6 +22,7 @@ fn main() {
// "mips" | "mipsel" => "mips32",
// "powerpc" => "ppc32",
// "powerpc64" => "ppc64",
+ "loongarch64" => "loongarch64",
"x86_64" => "x86_64",
_ => {
panic!("Unsupported architecture: {}", target);
--- /dev/null
+++ rust-generator-0.7.1/src/detail/asm/asm_loongarch64_sysv_elf_gas.S
@@ -0,0 +1,74 @@
+.text
+.globl prefetch
+.type prefetch,@function
+.align 16
+prefetch:
+ preld 0, $a0, 0
+ ret
+.size prefetch,.-prefetch
+
+.text
+.globl bootstrap_green_task
+.type bootstrap_green_task,@function
+.align 16
+bootstrap_green_task:
+ move $a0, $s0 // arg0
+ move $a1, $s1 // arg1
+ move $ra, $zero // clear LR
+ jirl $zero, $s2, 0
+.size bootstrap_green_task,.-bootstrap_green_task
+
+.text
+.globl swap_registers
+.type swap_registers,@function
+.align 16
+swap_registers:
+ st.d $ra, $a0, 0
+ st.d $sp, $a0, 8
+ st.d $fp, $a0, 16
+ st.d $s0, $a0, 24
+ st.d $s1, $a0, 32
+ st.d $s2, $a0, 40
+ st.d $s3, $a0, 48
+ st.d $s4, $a0, 56
+ st.d $s5, $a0, 64
+ st.d $s6, $a0, 72
+ st.d $s7, $a0, 80
+ st.d $s8, $a0, 88
+
+ fst.d $fs0, $a0, 96
+ fst.d $fs1, $a0, 104
+ fst.d $fs2, $a0, 112
+ fst.d $fs3, $a0, 120
+ fst.d $fs4, $a0, 128
+ fst.d $fs5, $a0, 136
+ fst.d $fs6, $a0, 144
+ fst.d $fs7, $a0, 152
+
+ ld.d $ra, $a1, 0
+ ld.d $sp, $a1, 8
+ ld.d $fp, $a1, 16
+ ld.d $s0, $a1, 24
+ ld.d $s1, $a1, 32
+ ld.d $s2, $a1, 40
+ ld.d $s3, $a1, 48
+ ld.d $s4, $a1, 56
+ ld.d $s5, $a1, 64
+ ld.d $s6, $a1, 72
+ ld.d $s7, $a1, 80
+ ld.d $s8, $a1, 88
+
+ fld.d $fs0, $a1, 96
+ fld.d $fs1, $a1, 104
+ fld.d $fs2, $a1, 112
+ fld.d $fs3, $a1, 120
+ fld.d $fs4, $a1, 128
+ fld.d $fs5, $a1, 136
+ fld.d $fs6, $a1, 144
+ fld.d $fs7, $a1, 152
+
+ ret
+.size swap_registers,.-swap_registers
+
+/* Mark that we don't need executable stack. */
+.section .note.GNU-stack,"",%progbits
--- /dev/null
+++ rust-generator-0.7.1/src/detail/loongarch64_unix.rs
@@ -0,0 +1,85 @@
+use crate::detail::align_down;
+use crate::reg_context::InitFn;
+use crate::stack::Stack;
+
+#[link(name = "asm", kind = "static")]
+extern "C" {
+ pub fn bootstrap_green_task();
+ pub fn prefetch(data: *const usize);
+ pub fn swap_registers(out_regs: *mut Registers, in_regs: *const Registers);
+}
+
+#[repr(C, align(16))]
+#[derive(Debug)]
+pub struct Registers {
+ // We save the 12 callee-saved registers:
+ // 0: ra
+ // 1: sp
+ // 2: fp
+ // 3: s0
+ // 4: s1
+ // 5: s2
+ // 6: s3
+ // 7: s4
+ // 8: s5
+ // 9: s6
+ // 10: s7
+ // 11: s8
+ // and the 8 callee-saved floating point registers:
+ // 12: fs0
+ // 13: fs1
+ // 14: fs2
+ // 15: fs3
+ // 16: fs4
+ // 17: fs5
+ // 18: fs6
+ // 19: fs7
+ gpr: [usize; 20],
+}
+
+impl Registers {
+ pub fn new() -> Registers {
+ Registers { gpr: [0; 20] }
+ }
+
+ #[inline]
+ pub fn prefetch(&self) {
+ let ptr = self.gpr[1] as *const usize;
+ unsafe {
+ prefetch(ptr); // SP
+ prefetch(ptr.add(8)); // SP + 8
+ }
+ }
+}
+
+pub fn initialize_call_frame(
+ regs: &mut Registers,
+ fptr: InitFn,
+ arg: usize,
+ arg2: *mut usize,
+ stack: &Stack,
+) {
+ const RA: usize = 0;
+ const SP: usize = 1;
+ const FP: usize = 2;
+ const S0: usize = 3;
+ const S1: usize = 4;
+ const S2: usize = 5;
+
+ let sp = align_down(stack.end());
+
+ // These registers are frobbed by bootstrap_green_task into the right
+ // location so we can invoke the "real init function", `fptr`.
+ regs.gpr[S0] = arg;
+ regs.gpr[S1] = arg2 as usize;
+ regs.gpr[S2] = fptr as usize;
+
+ // LoongArch64 current stack frame pointer
+ regs.gpr[FP] = sp as usize;
+
+ regs.gpr[RA] = bootstrap_green_task as usize;
+
+ // setup the init stack
+ // this is prepared for the swap context
+ regs.gpr[SP] = sp as usize;
+}
--- rust-generator-0.7.1.orig/src/detail/mod.rs
+++ rust-generator-0.7.1/src/detail/mod.rs
@@ -33,6 +33,10 @@ pub mod asm;
#[path = "aarch64_unix.rs"]
pub mod asm;
+#[cfg(all(unix, target_arch = "loongarch64"))]
+#[path = "loongarch64_unix.rs"]
+pub mod asm;
+
pub use self::asm::{initialize_call_frame, prefetch, swap_registers, Registers};
#[inline]
--- rust-generator-0.7.1.orig/src/stack/mod.rs
+++ rust-generator-0.7.1/src/stack/mod.rs
@@ -17,6 +17,10 @@ pub mod sys;
#[path = "unix.rs"]
pub mod sys;
+#[cfg(all(unix, target_arch = "loongarch64"))]
+#[path = "unix.rs"]
+pub mod sys;
+
#[cfg(all(windows, target_arch = "x86_64"))]
#[path = "windows.rs"]
pub mod sys;
--- End Message ---
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