[intelxl] Add driver for Intel 100 Gigabit Ethernet NICs
[ipxe.git] / src / arch / i386 / include / gdbmach.h
1 #ifndef GDBMACH_H
2 #define GDBMACH_H
3
4 /** @file
5 *
6 * GDB architecture specifics
7 *
8 * This file declares functions for manipulating the machine state and
9 * debugging context.
10 *
11 */
12
13 #include <stdint.h>
14
15 typedef unsigned long gdbreg_t;
16
17 /* The register snapshot, this must be in sync with interrupt handler and the
18 * GDB protocol. */
19 enum {
20 GDBMACH_EAX,
21 GDBMACH_ECX,
22 GDBMACH_EDX,
23 GDBMACH_EBX,
24 GDBMACH_ESP,
25 GDBMACH_EBP,
26 GDBMACH_ESI,
27 GDBMACH_EDI,
28 GDBMACH_EIP,
29 GDBMACH_EFLAGS,
30 GDBMACH_CS,
31 GDBMACH_SS,
32 GDBMACH_DS,
33 GDBMACH_ES,
34 GDBMACH_FS,
35 GDBMACH_GS,
36 GDBMACH_NREGS,
37 GDBMACH_SIZEOF_REGS = GDBMACH_NREGS * sizeof ( gdbreg_t )
38 };
39
40 /* Breakpoint types */
41 enum {
42 GDBMACH_BPMEM,
43 GDBMACH_BPHW,
44 GDBMACH_WATCH,
45 GDBMACH_RWATCH,
46 GDBMACH_AWATCH,
47 };
48
49 /* Interrupt vectors */
50 extern void gdbmach_sigfpe ( void );
51 extern void gdbmach_sigtrap ( void );
52 extern void gdbmach_sigstkflt ( void );
53 extern void gdbmach_sigill ( void );
54
55 static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
56 regs [ GDBMACH_EIP ] = pc;
57 }
58
59 static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
60 regs [ GDBMACH_EFLAGS ] &= ~( 1 << 8 ); /* Trace Flag (TF) */
61 regs [ GDBMACH_EFLAGS ] |= ( step << 8 );
62 }
63
64 static inline void gdbmach_breakpoint ( void ) {
65 __asm__ __volatile__ ( "int $3\n" );
66 }
67
68 extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len, int enable );
69
70 extern void gdbmach_init ( void );
71
72 #endif /* GDBMACH_H */