add supports for dump analyzer

arch/x86/kernel/cpu.c

@@ -112,6 +112,7 @@ void reload_idt(void)
 }
 
 static struct list_head handlers[256 - 32];
+extern char nmi[];
 extern char page_fault[], general_protection_exception[];
 extern char debug_exception[], int3_exception[];
 
@@ -131,6 +132,7 @@ static void init_idt(void)
 		set_idt_entry(i, generic_common_handlers[i]);
 	}
 
+	set_idt_entry(2, (uintptr_t)nmi);
 	set_idt_entry(13, (unsigned long)general_protection_exception);
 	set_idt_entry(14, (unsigned long)page_fault);
 

arch/x86/kernel/include/cpulocal.h

@@ -42,7 +42,10 @@ struct x86_cpu_local_variables {
 	uint64_t gdt[10];
 /* 128 */
 	struct tss64 tss;
-
+/* 232 */
+	unsigned long paniced;
+	uint64_t panic_regs[21];
+/* 408 */
 } __attribute__((packed));
 
 struct x86_cpu_local_variables *get_x86_cpu_local_variable(int id);

arch/x86/kernel/interrupt.S

@@ -130,6 +130,49 @@ general_protection_exception:
 		addq	$8, %rsp
 		iretq
 
+.globl nmi
+nmi:
+#define PANICED 232
+#define PANIC_REGS 240
+		movq	%rax,%gs:PANIC_REGS+0x00
+		movq	%rbx,%gs:PANIC_REGS+0x08
+		movq	%rcx,%gs:PANIC_REGS+0x10
+		movq	%rdx,%gs:PANIC_REGS+0x18
+		movq	%rsi,%gs:PANIC_REGS+0x20
+		movq	%rdi,%gs:PANIC_REGS+0x28
+		movq	%rbp,%gs:PANIC_REGS+0x30
+		movq	0x18(%rsp),%rax		/* rsp */
+		movq	%rax,%gs:PANIC_REGS+0x38
+		movq	%r8, %gs:PANIC_REGS+0x40
+		movq	%r9, %gs:PANIC_REGS+0x48
+		movq	%r10,%gs:PANIC_REGS+0x50
+		movq	%r11,%gs:PANIC_REGS+0x58
+		movq	%r12,%gs:PANIC_REGS+0x60
+		movq	%r13,%gs:PANIC_REGS+0x68
+		movq	%r14,%gs:PANIC_REGS+0x70
+		movq	%r15,%gs:PANIC_REGS+0x78
+		movq	0x00(%rsp),%rax		/* rip */
+		movq	%rax,%gs:PANIC_REGS+0x80
+		movq	0x10(%rsp),%rax		/* rflags */
+		movl	%eax,%gs:PANIC_REGS+0x88
+		movq	0x08(%rsp),%rax		/* cs */
+		movl	%eax,%gs:PANIC_REGS+0x8C
+		movq	0x20(%rsp),%rax		/* ss */
+		movl	%eax,%gs:PANIC_REGS+0x90
+		xorq	%rax,%rax
+		movw	%ds,%ax
+		movl	%eax,%gs:PANIC_REGS+0x94
+		movw	%es,%ax
+		movl	%eax,%gs:PANIC_REGS+0x98
+		movw	%fs,%ax
+		movl	%eax,%gs:PANIC_REGS+0x9C
+		movw	%gs,%ax
+		movl	%eax,%gs:PANIC_REGS+0xA0
+		movq	$1,%gs:PANICED
+1:
+		hlt
+		jmp	1b
+
 .globl x86_syscall
 x86_syscall:
 		cld

arch/x86/kernel/syscall.c

@@ -40,6 +40,20 @@ extern void save_fp_regs(struct process *proc);
 #define dkprintf(...) do { if (0) kprintf(__VA_ARGS__); } while (0)
 #endif
 
+uintptr_t debug_constants[] = {
+	sizeof(struct cpu_local_var),
+	offsetof(struct cpu_local_var, current),
+	offsetof(struct cpu_local_var, runq),
+	offsetof(struct cpu_local_var, status),
+	offsetof(struct process, ctx),
+	offsetof(struct process, sched_list),
+	offsetof(struct process, ftn),
+	offsetof(struct fork_tree_node, status),
+	offsetof(struct fork_tree_node, pid),
+	offsetof(struct fork_tree_node, tid),
+	-1,
+};
+
 /*
 See dkprintf("BSP HW ID = %d, ", bsp_hw_id); (in ./mcos/kernel/ap.c)
 

kernel/Makefile.build.in

@@ -6,7 +6,7 @@ OBJS += process.o copy.o waitq.o futex.o timer.o plist.o fileobj.o shmobj.o
 OBJS += zeroobj.o procfs.o devobj.o
 DEPSRCS=$(wildcard $(SRC)/*.c)
 
-CFLAGS += -I$(SRC)/include -mcmodel=kernel -D__KERNEL__
+CFLAGS += -I$(SRC)/include -mcmodel=kernel -D__KERNEL__ -g
 LDFLAGS += -e arch_start
 IHKOBJ = ihk/ihk.o
 

kernel/config/builtin-x86.lds

@@ -42,8 +42,4 @@ SECTIONS
     . = ALIGN(4096);
     _end = .;
 
-	/DISCARD/ : {
-	     *(.eh_frame)
-         *(.note.gnu.build-id)
-	}
 }