35,6 → 35,7 |
#include <stdio.h> |
#include <stdlib.h> |
#include <sys/types.h> |
#include <bool.h> |
#include <udebug.h> |
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#include <kernel/arch/context_offset.h> |
45,6 → 46,23 |
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#define OPCODE_INT3 0xCC |
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static int _set_trap_flag(dthread_t *dt, bool enable) |
{ |
static istate_t istate; |
int rc; |
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rc = udebug_regs_read(app_phone, dt->hash, &istate); |
if (rc < 0) { printf("regs read failed\n"); return; } |
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if (enable) istate.eflags |= 0x0100; /* trap flag */ |
else if (!active_bkpt) 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; } |
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return 0; |
} |
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int arch_breakpoint_set(breakpoint_t *b) |
{ |
char brkp[1]; |
128,15 → 146,10 |
active_bkpt = NULL; |
} |
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if (!dt->arch.singlestep) { |
rc = udebug_regs_read(app_phone, dt->hash, &istate); |
// cons_printf("udebug_regs_read -> %d\n", rc); |
istate.eflags &= ~0x0100; /* trap flag */ |
rc = udebug_regs_write(app_phone, dt->hash, &istate); |
} else { |
// printf("ss-hit\n"); |
singlestep_hit(); |
} |
rc = _set_trap_flag(dt, false); |
dt->arch.singlestep = false; |
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singlestep_hit(); |
} |
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void arch_dump_regs(thash_t thash) |
155,21 → 168,14 |
istate.ds, istate.es, istate.fs, istate.gs); |
} |
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void arch_set_singlestep(dthread_t *dt, int enable) |
void arch_singlestep(dthread_t *dt) |
{ |
static istate_t istate; |
int rc; |
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rc = udebug_regs_read(app_phone, dt->hash, &istate); |
if (rc < 0) { printf("regs read failed\n"); return; } |
rc = _set_trap_flag(dt, true); |
if (rc != 0) return; |
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if (enable) istate.eflags |= 0x0100; /* trap flag */ |
else if (!active_bkpt) 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; } |
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dt->arch.singlestep = enable; |
dthread_resume(dt); |
} |
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/** @} |