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feat(la64): 实现了较为早期的la64的异常处理的注册 (#1138)
* feat(la64): 实现了较为早期的la64的异常处理的注册 - 栈保存&恢复 - 开机时临时设置异常处理程序,并验证可进入异常处理程序 Signed-off-by: longjin <longjin@DragonOS.org>
This commit is contained in:
LoGin
GitHub
parent
ed0561424e
commit
4cc267146a
@ -5,3 +5,6 @@ pub mod x86_64;
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#[cfg(target_arch = "riscv64")]
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pub mod riscv64;
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#[cfg(target_arch = "loongarch64")]
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pub mod loongarch64;
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280
kernel/crates/asm_macros/src/loongarch64/context.rs
Normal file
280
kernel/crates/asm_macros/src/loongarch64/context.rs
Normal file
@ -0,0 +1,280 @@
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/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#48
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#[macro_export]
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macro_rules! backup_t0t1 {
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() => {
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concat!(
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"
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csrwr $t0, {exception_ks0}
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csrwr $t1, {exception_ks1}
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"
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)
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};
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}
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/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#53
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#[macro_export]
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macro_rules! reload_t0t1 {
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() => {
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concat!(
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"
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csrrd $t0, {exception_ks0}
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csrrd $t1, {exception_ks1}
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"
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)
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};
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}
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/// get_saved_sp returns the SP for the current CPU by looking in the
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/// kernelsp array for it. It stores the current sp in t0 and loads the
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/// new value in sp.
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///
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h?r=&mo=2487&fi=119#88
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#[macro_export]
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macro_rules! get_saved_sp {
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() => {
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concat!(
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"
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la.abs $t1, KERNEL_SP
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csrrd $t0, {percpu_base_ks}
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add.d $t1, $t1, $t0
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move $t0, $sp
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ld.d $sp, $t1, 0
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h?r=&mo=2487&fi=119#101
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#[macro_export]
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macro_rules! set_saved_sp {
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($stackp:tt, $temp:tt) => {
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concat!(
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"la.pcrel ",
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stringify!($temp),
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", KERNEL_SP\n",
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"add.d ",
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stringify!($temp),
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", ",
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stringify!($temp),
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", $r21\n",
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"st.d ",
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stringify!($stackp),
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", ",
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stringify!($temp),
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", 0\n"
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)
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};
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}
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/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#109
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#[macro_export]
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macro_rules! save_some {
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() => {
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concat!(
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"
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csrrd $t1, {loongarch_csr_prmd}
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andi $t1, $t1, 0x3
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move $t0, $sp
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beqz $t1, 3f
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",
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get_saved_sp!(),
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"
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3:
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addi.d $sp, $sp, -{pt_size}
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st.d $t0, $sp, {off_usp} // 等价于 cfi_st t0, PT_R3, docfi=0
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st.d $zero, $sp, {off_r0}
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csrrd $t0, {loongarch_csr_prmd}
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st.d $t0, $sp, {off_csr_prmd}
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csrrd $t0, {loongarch_csr_crmd}
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st.d $t0, $sp, {off_csr_crmd}
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csrrd $t0, {loongarch_csr_euen}
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st.d $t0, $sp, {off_csr_euen}
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csrrd $t0, {loongarch_csr_ecfg}
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st.d $t0, $sp, {off_csr_ecfg}
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csrrd $t0, {loongarch_csr_estat}
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st.d $t0, $sp, {off_csr_estat}
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st.d $ra, $sp, {off_ra}
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st.d $a0, $sp, {off_a0}
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st.d $a1, $sp, {off_a1}
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st.d $a2, $sp, {off_a2}
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st.d $a3, $sp, {off_a3}
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st.d $a4, $sp, {off_a4}
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st.d $a5, $sp, {off_a5}
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st.d $a6, $sp, {off_a6}
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st.d $a7, $sp, {off_a7}
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csrrd $ra, {loongarch_csr_era}
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st.d $ra, $sp, {off_csr_era}
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st.d $tp, $sp, {off_tp}
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st.d $fp, $sp, {off_fp}
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/* Set thread_info if we're coming from user mode */
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csrrd $t0, {loongarch_csr_prmd}
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andi $t0, $t0, 0x3
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beqz $t0, 9f
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li.d $tp, ~{thread_mask}
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and $tp, $tp, $sp
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st.d $r21, $sp, {off_r21}
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csrrd $r21, {percpu_base_ks}
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9:
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#197
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#[macro_export]
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macro_rules! restore_some {
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() => {
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concat!(
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"
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ld.d $a0, $sp, {off_csr_prmd}
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// extract pplv bit
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andi $a0, $a0, 0x3
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beqz $a0, 4f
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ld.d $r21, $sp, {off_r21}
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4:
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ld.d $a0, $sp, {off_csr_era}
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csrwr $a0, {loongarch_csr_era}
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ld.d $a0, $sp, {off_csr_prmd}
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csrwr $a0, {loongarch_csr_prmd}
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ld.d $ra, $sp, {off_ra}
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ld.d $a0, $sp, {off_a0}
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ld.d $a1, $sp, {off_a1}
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ld.d $a2, $sp, {off_a2}
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ld.d $a3, $sp, {off_a3}
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ld.d $a4, $sp, {off_a4}
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ld.d $a5, $sp, {off_a5}
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ld.d $a6, $sp, {off_a6}
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ld.d $a7, $sp, {off_a7}
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ld.d $tp, $sp, {off_tp}
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ld.d $fp, $sp, {off_fp}
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#58
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#[macro_export]
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macro_rules! save_temp {
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() => {
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concat!(
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reload_t0t1!(),
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"
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st.d $t0, $sp, {off_t0}
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st.d $t1, $sp, {off_t1}
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st.d $t2, $sp, {off_t2}
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st.d $t3, $sp, {off_t3}
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st.d $t4, $sp, {off_t4}
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st.d $t5, $sp, {off_t5}
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st.d $t6, $sp, {off_t6}
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st.d $t7, $sp, {off_t7}
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st.d $t8, $sp, {off_t8}
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#173
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#[macro_export]
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macro_rules! restore_temp {
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() => {
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concat!(
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reload_t0t1!(),
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"
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ld.d $t0, $sp, {off_t0}
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ld.d $t1, $sp, {off_t1}
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ld.d $t2, $sp, {off_t2}
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ld.d $t3, $sp, {off_t3}
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ld.d $t4, $sp, {off_t4}
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ld.d $t5, $sp, {off_t5}
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ld.d $t6, $sp, {off_t6}
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ld.d $t7, $sp, {off_t7}
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ld.d $t8, $sp, {off_t8}
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#71
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#[macro_export]
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macro_rules! save_static {
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() => {
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concat!(
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"
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st.d $s0, $sp, {off_s0}
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st.d $s1, $sp, {off_s1}
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st.d $s2, $sp, {off_s2}
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st.d $s3, $sp, {off_s3}
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st.d $s4, $sp, {off_s4}
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st.d $s5, $sp, {off_s5}
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st.d $s6, $sp, {off_s6}
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st.d $s7, $sp, {off_s7}
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st.d $s8, $sp, {off_s8}
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#185
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#[macro_export]
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macro_rules! restore_static {
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() => {
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concat!(
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"
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ld.d $s0, $sp, {off_s0}
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ld.d $s1, $sp, {off_s1}
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ld.d $s2, $sp, {off_s2}
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ld.d $s3, $sp, {off_s3}
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ld.d $s4, $sp, {off_s4}
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ld.d $s5, $sp, {off_s5}
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ld.d $s6, $sp, {off_s6}
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ld.d $s7, $sp, {off_s7}
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ld.d $s8, $sp, {off_s8}
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#167
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#[macro_export]
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macro_rules! save_all {
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() => {
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concat!(save_some!(), "\n", save_temp!(), "\n", save_static!(),)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#220
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#[macro_export]
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macro_rules! restore_sp_and_ret {
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() => {
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concat!(
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"
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ld.d $sp, $sp, {off_usp}
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ertn
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"
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)
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};
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}
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/// 参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/include/asm/stackframe.h#225
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#[macro_export]
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macro_rules! restore_all_and_ret {
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() => {
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concat!(
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restore_static!(),
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restore_temp!(),
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restore_some!(),
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restore_sp_and_ret!()
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)
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};
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}
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1
kernel/crates/asm_macros/src/loongarch64/mod.rs
Normal file
1
kernel/crates/asm_macros/src/loongarch64/mod.rs
Normal file
@ -0,0 +1 @@
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pub mod context;
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@ -1,2 +1,44 @@
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use crate::process::KernelStack;
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pub mod bitops;
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pub mod boot;
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/* KSave registers */
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pub const LOONGARCH_CSR_KS0: usize = 0x30;
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pub const LOONGARCH_CSR_KS1: usize = 0x31;
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pub const LOONGARCH_CSR_KS2: usize = 0x32;
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pub const LOONGARCH_CSR_KS3: usize = 0x33;
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pub const LOONGARCH_CSR_KS4: usize = 0x34;
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pub const LOONGARCH_CSR_KS5: usize = 0x35;
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pub const LOONGARCH_CSR_KS6: usize = 0x36;
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pub const LOONGARCH_CSR_KS7: usize = 0x37;
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pub const LOONGARCH_CSR_KS8: usize = 0x38;
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/// Current mode info
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pub const LOONGARCH_CSR_CRMD: usize = 0x0;
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/// Prev-exception mode info
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pub const LOONGARCH_CSR_PRMD: usize = 0x1;
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/// Extended unit enable
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pub const LOONGARCH_CSR_EUEN: usize = 0x2;
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/// Exception config
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pub const LOONGARCH_CSR_ECFG: usize = 0x4;
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/// Exception status
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pub const LOONGARCH_CSR_ESTAT: usize = 0x5;
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/// Exception return address.
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pub const LOONGARCH_CSR_ERA: usize = 0x6;
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/// Bad virtual address.
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pub const LOONGARCH_CSR_BADV: usize = 0x7;
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/* Exception allocated KS0, KS1 and KS2 statically */
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pub const EXCEPTION_KS0: usize = LOONGARCH_CSR_KS0;
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pub const EXCEPTION_KS1: usize = LOONGARCH_CSR_KS1;
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/* Percpu-data base allocated KS3 statically */
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pub const PERCPU_BASE_KS: usize = LOONGARCH_CSR_KS3;
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pub const PERCPU_KSAVE_MASK: usize = 1 << 3;
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pub const _THREAD_MASK: usize = KernelStack::SIZE - 1;
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@ -1,4 +1,4 @@
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use crate::smp::cpu::ProcessorId;
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use crate::{mm::percpu::PerCpu, smp::cpu::ProcessorId};
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/// 重置cpu
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pub unsafe fn cpu_reset() -> ! {
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@ -13,3 +13,6 @@ pub unsafe fn cpu_reset() -> ! {
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pub fn current_cpu_id() -> ProcessorId {
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ProcessorId::new(loongArch64::register::cpuid::read().core_id() as u32)
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}
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#[no_mangle]
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pub static mut KERNEL_SP: [usize; PerCpu::MAX_CPU_NUM as usize] = [0; PerCpu::MAX_CPU_NUM as usize];
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@ -1,6 +1,6 @@
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use loongArch64::register::{ecfg, eentry};
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use crate::{init::init::start_kernel, mm::PhysAddr};
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use crate::{arch::interrupt::entry::handle_reserved_, init::init::start_kernel, mm::PhysAddr};
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static mut BOOT_HARTID: u32 = 0;
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static mut BOOT_FDT_PADDR: PhysAddr = PhysAddr::new(0);
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@ -15,16 +15,19 @@ pub unsafe extern "C" fn kernel_main(hartid: usize, fdt_paddr: usize) -> ! {
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BOOT_HARTID = hartid as u32;
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BOOT_FDT_PADDR = fdt_paddr;
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}
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setup_trap_vector();
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boot_tmp_setup_trap_vector();
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start_kernel();
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}
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/// 设置中断、异常处理函数
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fn setup_trap_vector() {
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// todo!();
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// let ptr = handle_exception as *const () as usize;
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// ecfg::set_vs(0);
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// eentry::set_eentry(handle_exception as usize);
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/// 临时设置中断、异常处理函数
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///
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/// 后续需要通过 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#1085
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/// 这里的这个函数来重新设置中断、异常处理函数
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fn boot_tmp_setup_trap_vector() {
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let ptr = handle_reserved_ as *const () as usize;
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ecfg::set_vs(0);
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eentry::set_eentry(ptr);
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}
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/// Clear the bss section
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@ -1,4 +1,6 @@
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use system_error::SystemError;
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use crate::driver::serial::serial8250::send_to_default_serial8250_port;
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pub mod boot;
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#[derive(Debug)]
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@ -10,6 +12,8 @@ impl ArchBootParams {
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#[inline(never)]
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pub fn early_setup_arch() -> Result<(), SystemError> {
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send_to_default_serial8250_port(b"la64:early_setup_arch");
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loop {}
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todo!("la64:early_setup_arch");
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}
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132
kernel/src/arch/loongarch64/interrupt/entry.rs
Normal file
132
kernel/src/arch/loongarch64/interrupt/entry.rs
Normal file
@ -0,0 +1,132 @@
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use asm_macros::*;
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use kdepends::memoffset::offset_of;
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use crate::arch::{asm::*, interrupt::TrapFrame};
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/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/genex.S#55
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macro_rules! build_prep_badv_ {
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() => {
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concat!(
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"
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csrrd $t0, {loongarch_csr_badv}
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st.d $t0, $sp, {off_csr_badvaddr}
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"
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)
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};
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/genex.S#60
|
||||
macro_rules! build_prep_fcsr_ {
|
||||
() => {
|
||||
concat!(
|
||||
"
|
||||
movfcsr2gr $a1, $fcsr0
|
||||
"
|
||||
)
|
||||
};
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/genex.S#64
|
||||
macro_rules! build_prep_none_ {
|
||||
() => {
|
||||
""
|
||||
};
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/genex.S#67
|
||||
macro_rules! build_handler {
|
||||
($exception:expr, $handler:expr, $prep:ident) => {
|
||||
paste::paste! {
|
||||
/// handle exception的实现请参考 https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/genex.S#69
|
||||
#[naked]
|
||||
#[no_mangle]
|
||||
#[repr(align(8))]
|
||||
pub unsafe extern "C" fn [<handle_ $exception _>]() -> ! {
|
||||
core::arch::naked_asm!(concat!(
|
||||
backup_t0t1!(),
|
||||
save_all!(),
|
||||
[<build_prep_ $prep _>]!(),
|
||||
"
|
||||
move $a0, $sp
|
||||
la.abs $t0, ", stringify!([<do_ $handler _>]),
|
||||
"
|
||||
jirl $ra, $t0, 0
|
||||
",
|
||||
restore_all_and_ret!(),
|
||||
"
|
||||
// 以下是为了编译器不报错说变量未使用，才保留的代码
|
||||
/* {off_csr_badvaddr} */
|
||||
/* {loongarch_csr_badv} */
|
||||
"
|
||||
),
|
||||
exception_ks0 = const EXCEPTION_KS0,
|
||||
exception_ks1 = const EXCEPTION_KS1,
|
||||
loongarch_csr_prmd = const LOONGARCH_CSR_PRMD,
|
||||
loongarch_csr_crmd = const LOONGARCH_CSR_CRMD,
|
||||
loongarch_csr_euen = const LOONGARCH_CSR_EUEN,
|
||||
loongarch_csr_ecfg = const LOONGARCH_CSR_ECFG,
|
||||
loongarch_csr_estat = const LOONGARCH_CSR_ESTAT,
|
||||
loongarch_csr_era = const LOONGARCH_CSR_ERA,
|
||||
loongarch_csr_badv = const LOONGARCH_CSR_BADV,
|
||||
percpu_base_ks = const PERCPU_BASE_KS,
|
||||
thread_mask = const _THREAD_MASK,
|
||||
pt_size = const core::mem::size_of::<TrapFrame>(),
|
||||
off_r0 = const offset_of!(TrapFrame, r0),
|
||||
off_ra = const offset_of!(TrapFrame, ra),
|
||||
off_tp = const offset_of!(TrapFrame, tp),
|
||||
off_usp = const offset_of!(TrapFrame, usp),
|
||||
off_a0 = const offset_of!(TrapFrame, a0),
|
||||
off_a1 = const offset_of!(TrapFrame, a1),
|
||||
off_a2 = const offset_of!(TrapFrame, a2),
|
||||
off_a3 = const offset_of!(TrapFrame, a3),
|
||||
off_a4 = const offset_of!(TrapFrame, a4),
|
||||
off_a5 = const offset_of!(TrapFrame, a5),
|
||||
off_a6 = const offset_of!(TrapFrame, a6),
|
||||
off_a7 = const offset_of!(TrapFrame, a7),
|
||||
off_t0 = const offset_of!(TrapFrame, t0),
|
||||
off_t1 = const offset_of!(TrapFrame, t1),
|
||||
off_t2 = const offset_of!(TrapFrame, t2),
|
||||
off_t3 = const offset_of!(TrapFrame, t3),
|
||||
off_t4 = const offset_of!(TrapFrame, t4),
|
||||
off_t5 = const offset_of!(TrapFrame, t5),
|
||||
off_t6 = const offset_of!(TrapFrame, t6),
|
||||
off_t7 = const offset_of!(TrapFrame, t7),
|
||||
off_t8 = const offset_of!(TrapFrame, t8),
|
||||
off_r21 = const offset_of!(TrapFrame, r21),
|
||||
off_fp = const offset_of!(TrapFrame, fp),
|
||||
off_s0 = const offset_of!(TrapFrame, s0),
|
||||
off_s1 = const offset_of!(TrapFrame, s1),
|
||||
off_s2 = const offset_of!(TrapFrame, s2),
|
||||
off_s3 = const offset_of!(TrapFrame, s3),
|
||||
off_s4 = const offset_of!(TrapFrame, s4),
|
||||
off_s5 = const offset_of!(TrapFrame, s5),
|
||||
off_s6 = const offset_of!(TrapFrame, s6),
|
||||
off_s7 = const offset_of!(TrapFrame, s7),
|
||||
off_s8 = const offset_of!(TrapFrame, s8),
|
||||
// off_orig_a0 = const offset_of!(TrapFrame, orig_a0),
|
||||
off_csr_era = const offset_of!(TrapFrame, csr_era),
|
||||
off_csr_badvaddr = const offset_of!(TrapFrame, csr_badvaddr),
|
||||
off_csr_crmd = const offset_of!(TrapFrame, csr_crmd),
|
||||
off_csr_prmd = const offset_of!(TrapFrame, csr_prmd),
|
||||
off_csr_euen = const offset_of!(TrapFrame, csr_euen),
|
||||
off_csr_ecfg = const offset_of!(TrapFrame, csr_ecfg),
|
||||
off_csr_estat = const offset_of!(TrapFrame, csr_estat),
|
||||
)
|
||||
}
|
||||
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
build_handler!(ade, ade, badv);
|
||||
build_handler!(ale, ale, badv);
|
||||
build_handler!(bce, bce, none);
|
||||
build_handler!(bp, bp, none);
|
||||
build_handler!(fpe, fpe, fcsr);
|
||||
build_handler!(fpu, fpu, none);
|
||||
build_handler!(lsx, lsx, none);
|
||||
build_handler!(lasx, lasx, none);
|
||||
build_handler!(lbt, lbt, none);
|
||||
build_handler!(ri, ri, none);
|
||||
build_handler!(watch, watch, none);
|
||||
build_handler!(reserved, reserved, none); /* others */
|
||||
87
kernel/src/arch/loongarch64/interrupt/handle.rs
Normal file
87
kernel/src/arch/loongarch64/interrupt/handle.rs
Normal file
@ -0,0 +1,87 @@
|
||||
use crate::driver::serial::serial8250::send_to_default_serial8250_port;
|
||||
|
||||
use super::TrapFrame;
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#508
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_ade_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_ade_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#522
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_ale_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_ale_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#583
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_bce_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_bce_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#672
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_bp_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_bp_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#481
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_fpe_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_fpe_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#904
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_fpu_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_fpu_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#921
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_lsx_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_lsx_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#943
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_lasx_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_lasx_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#978
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_lbt_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_lbt_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#809
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_ri_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_ri_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#756
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_watch_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_watch_()\n");
|
||||
loop {}
|
||||
}
|
||||
|
||||
/// https://code.dragonos.org.cn/xref/linux-6.6.21/arch/loongarch/kernel/traps.c#1009
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn do_reserved_(frame: *mut TrapFrame) {
|
||||
send_to_default_serial8250_port(b"la64: do_reserved_()\n");
|
||||
// loop {}
|
||||
}
|
||||
@ -1,3 +1,5 @@
|
||||
pub mod entry;
|
||||
mod handle;
|
||||
pub mod ipi;
|
||||
|
||||
use core::any::Any;
|
||||
|
||||
@ -21,7 +21,6 @@ SECTIONS
|
||||
*(.bootstrap.*)
|
||||
. = ALIGN(4096);
|
||||
*(.initial_pgtable_section)
|
||||
. = ALIGN(4096);
|
||||
}
|
||||
|
||||
|
||||
@ -68,7 +67,7 @@ SECTIONS
|
||||
. = ALIGN(32768);
|
||||
|
||||
trace_point_start_pa = .;
|
||||
.tracepoint (trace_point_start_pa): AT(trace_point_start_pa - KERNEL_VMA)
|
||||
.tracepoint (trace_point_start_pa):
|
||||
{
|
||||
_tracepoint = .;
|
||||
*(.tracepoint)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user