1 #include <u.h>
2 #include <libc.h>
3 #include <mach.h>
4 #include "elf.h"
5 #include "ureg386.h"
6 
7 typedef struct Lreg Lreg;
8 typedef struct Status Status;
9 
10 struct Lreg
11 {
12 	u32int	ebx;
13 	u32int	ecx;
14 	u32int	edx;
15 	u32int	esi;
16 	u32int	edi;
17 	u32int	ebp;
18 	u32int	eax;
19 	u32int	ds;
20 	u32int	es;
21 	u32int	fs;
22 	u32int	gs;
23 	u32int	origeax;
24 	u32int	eip;
25 	u32int	cs;
26 	u32int	eflags;
27 	u32int	esp;
28 	u32int	ss;
29 };
30 
31 /*
32  * Lreg is 64-bit aligned within status, so we shouldn't 
33  * have any packing problems. 
34  */
35 struct Status
36 {
37 	u32int	signo;
38 	u32int	code;
39 	u32int	errno;
40 	u32int	cursig;
41 	u32int	sigpend;
42 	u32int	sighold;
43 	u32int	pid;
44 	u32int	ppid;
45 	u32int	pgrp;
46 	u32int	sid;
47 	u32int	utime[2];
48 	u32int	stime[2];
49 	u32int	cutime[2];
50 	u32int	cstime[2];
51 	Lreg	reg;
52 	u32int	fpvalid;
53 };
54 
55 int
56 coreregslinux386(Elf *elf, ElfNote *note, uchar **up)
57 {
58 	Status *s;
59 	Lreg *l;
60 	Ureg *u;
61 
62 	if(note->descsz < sizeof(Status)){
63 		werrstr("elf status note too small");
64 		return -1;
65 	}
66 	s = (Status*)note->desc;
67 	l = &s->reg;
68 	u = malloc(sizeof(Ureg));
69 	if(u == nil)
70 		return -1;
71 
72 	/* no byte order problems - just copying and rearranging */
73 	u->di = l->edi;
74 	u->si = l->esi;
75 	u->bp = l->ebp;
76 	u->nsp = l->esp;
77 	u->bx = l->ebx;
78 	u->dx = l->edx;
79 	u->cx = l->ecx;
80 	u->ax = l->eax;
81 	u->gs = l->gs;
82 	u->fs = l->fs;
83 	u->es = l->es;
84 	u->ds = l->ds;
85 	u->trap = ~0; // l->trapno;
86 	u->ecode = ~0; // l->err;
87 	u->pc = l->eip;
88 	u->cs = l->cs;
89 	u->flags = l->eflags;
90 	u->sp = l->esp;
91 	u->ss = l->ss;
92 	*up = (uchar*)u;
93 	return sizeof(Ureg);
94 }
95