diff options
Diffstat (limited to 'sys/amd64/amd64/gdb_machdep.c')
| -rw-r--r-- | sys/amd64/amd64/gdb_machdep.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/sys/amd64/amd64/gdb_machdep.c b/sys/amd64/amd64/gdb_machdep.c index f7ca3c07ea36..cf5979b7a1ea 100644 --- a/sys/amd64/amd64/gdb_machdep.c +++ b/sys/amd64/amd64/gdb_machdep.c @@ -92,12 +92,42 @@ gdb_cpu_getreg(int regnum, size_t *regsz) void gdb_cpu_setreg(int regnum, void *val) { + register_t regval = *(register_t *)val; + /* + * Write registers to the trapframe and pcb, if applicable. + * Some scratch registers are not tracked by the pcb. + */ + if (kdb_thread == curthread) { + switch (regnum) { + case GDB_REG_RAX: kdb_frame->tf_rax = regval; break; + case GDB_REG_RBX: kdb_frame->tf_rbx = regval; break; + case GDB_REG_RCX: kdb_frame->tf_rcx = regval; break; + case GDB_REG_RDX: kdb_frame->tf_rdx = regval; break; + case GDB_REG_RSI: kdb_frame->tf_rsi = regval; break; + case GDB_REG_RDI: kdb_frame->tf_rdi = regval; break; + case GDB_REG_RBP: kdb_frame->tf_rbp = regval; break; + case GDB_REG_RSP: kdb_frame->tf_rsp = regval; break; + case GDB_REG_R8: kdb_frame->tf_r8 = regval; break; + case GDB_REG_R9: kdb_frame->tf_r9 = regval; break; + case GDB_REG_R10: kdb_frame->tf_r10 = regval; break; + case GDB_REG_R11: kdb_frame->tf_r11 = regval; break; + case GDB_REG_R12: kdb_frame->tf_r12 = regval; break; + case GDB_REG_R13: kdb_frame->tf_r13 = regval; break; + case GDB_REG_R14: kdb_frame->tf_r14 = regval; break; + case GDB_REG_R15: kdb_frame->tf_r15 = regval; break; + case GDB_REG_PC: kdb_frame->tf_rip = regval; break; + } + } switch (regnum) { - case GDB_REG_PC: - kdb_thrctx->pcb_rip = *(register_t *)val; - if (kdb_thread == curthread) - kdb_frame->tf_rip = *(register_t *)val; + case GDB_REG_RBX: kdb_thrctx->pcb_rbx = regval; break; + case GDB_REG_RBP: kdb_thrctx->pcb_rbp = regval; break; + case GDB_REG_RSP: kdb_thrctx->pcb_rsp = regval; break; + case GDB_REG_R12: kdb_thrctx->pcb_r12 = regval; break; + case GDB_REG_R13: kdb_thrctx->pcb_r13 = regval; break; + case GDB_REG_R14: kdb_thrctx->pcb_r14 = regval; break; + case GDB_REG_R15: kdb_thrctx->pcb_r15 = regval; break; + case GDB_REG_PC: kdb_thrctx->pcb_rip = regval; break; } } |