45,6 → 45,8 |
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#define OPCODE_INT3 0xCC |
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static breakpoint_t *lifted_brkpt; |
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void arch_breakpoint_add(uintptr_t addr) |
{ |
char brkp[1]; |
53,7 → 55,7 |
int i; |
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brk = NULL; |
for (i = 0; i < MAX_BRKPTS; i++) |
for (i = 1; i < MAX_BRKPTS; i++) |
if (brk_list[i].set == 0) { brk = brk_list+i; break; } |
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if (!brk) { |
69,10 → 71,42 |
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brk->addr = addr; |
brk->set = 1; |
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cons_printf("Added breakpoint %d\n", i); |
} |
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static breakpoint_t *lifted_brkpt; |
void arch_breakpoint_remove(int id) |
{ |
int rc; |
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if (id < 1 || id >= MAX_BRKPTS || brk_list[id].set == 0) { |
cons_printf("No such breakpoint\n"); |
return; |
} |
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if (lifted_brkpt == &brk_list[id]) { |
lifted_brkpt = NULL; |
} else { |
rc = udebug_mem_write(app_phone, &brk_list[id].arch.back, brk_list[id].addr, 1); |
if (rc < 0) { printf("error writing mem\n"); return; } |
} |
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brk_list[id].set = 0; |
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cons_printf("Breakpoint removed\n"); |
} |
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void arch_breakpoint_list(void) |
{ |
int i; |
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for (i = 0; i < MAX_BRKPTS; ++i) { |
if (brk_list[i].set != 0) { |
printf("Breakpoint %d at 0x%lx\n", i, brk_list[i].addr); |
} |
} |
} |
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void arch_event_breakpoint(thash_t thread_hash) |
{ |
static istate_t istate; |
161,7 → 195,7 |
if (rc < 0) { printf("regs read failed\n"); return; } |
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if (enable) istate.eflags |= 0x0100; /* trap flag */ |
else istate.eflags &= ~0x0100; /* trap flag */ |
else if (!lifted_brkpt) istate.eflags &= ~0x0100; /* trap flag */ |
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rc = udebug_regs_write(app_phone, dt->hash, &istate); |
if (rc < 0) { printf("regs write failed\n"); return; } |