96 lines
1.4 KiB
C
96 lines
1.4 KiB
C
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#include <u.h>
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#include <libc.h>
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#include <mach.h>
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#include "elf.h"
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#include "ureg386.h"
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typedef struct Lreg Lreg;
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typedef struct Status Status;
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struct Lreg
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{
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u32int ebx;
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u32int ecx;
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u32int edx;
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u32int esi;
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u32int edi;
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u32int ebp;
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u32int eax;
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u32int ds;
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u32int es;
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u32int fs;
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u32int gs;
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u32int origeax;
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u32int eip;
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u32int cs;
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u32int eflags;
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u32int esp;
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u32int ss;
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};
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/*
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* Lreg is 64-bit aligned within status, so we shouldn't
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* have any packing problems.
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*/
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struct Status
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{
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u32int signo;
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u32int code;
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u32int errno;
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u32int cursig;
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u32int sigpend;
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u32int sighold;
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u32int pid;
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u32int ppid;
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u32int pgrp;
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u32int sid;
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u32int utime[2];
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u32int stime[2];
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u32int cutime[2];
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u32int cstime[2];
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Lreg reg;
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u32int fpvalid;
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};
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int
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coreregslinux386(Elf *elf, ElfNote *note, uchar **up)
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{
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Status *s;
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Lreg *l;
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Ureg *u;
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if(note->descsz < sizeof(Status)){
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werrstr("elf status note too small");
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return -1;
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}
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s = (Status*)note->desc;
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l = &s->reg;
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u = malloc(sizeof(Ureg));
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if(u == nil)
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return -1;
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/* no byte order problems - just copying and rearranging */
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u->di = l->edi;
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u->si = l->esi;
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u->bp = l->ebp;
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u->nsp = l->esp;
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u->bx = l->ebx;
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u->dx = l->edx;
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u->cx = l->ecx;
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u->ax = l->eax;
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u->gs = l->gs;
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u->fs = l->fs;
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u->es = l->es;
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u->ds = l->ds;
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u->trap = ~0; // l->trapno;
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u->ecode = ~0; // l->err;
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u->pc = l->eip;
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u->cs = l->cs;
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u->flags = l->eflags;
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u->sp = l->esp;
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u->ss = l->ss;
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*up = (uchar*)u;
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return sizeof(Ureg);
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}
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