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Add a DDB command "show pcb" to dump out the contents of a thread's PCB.

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Approved by: imp (mentor)
This commit is contained in:
Neel Natu 2010-01-08 05:53:11 +00:00
parent c0156af7e0
commit 375cce48d4
1 changed files with 97 additions and 0 deletions
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97
sys/mips/mips/vm_machdep.c
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@ -42,6 +42,7 @@
__FBSDID("$FreeBSD$");
#include "opt_cputype.h"
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
@ -588,3 +589,99 @@ cpu_throw(struct thread *old, struct thread *new)
func_2args_asmmacro(&mips_cpu_throw, old, new);
panic("mips_cpu_throw() returned");
}
#ifdef DDB
#include <ddb/ddb.h>
#define DB_PRINT_REG(ptr, regname) \
db_printf(" %-12s 0x%lx\n", #regname, (long)((ptr)->regname))
#define DB_PRINT_REG_ARRAY(ptr, arrname, regname) \
db_printf(" %-12s 0x%lx\n", #regname, (long)((ptr)->arrname[regname]))
DB_SHOW_COMMAND(pcb, ddb_dump_pcb)
{
struct thread *td;
struct pcb *pcb;
struct trapframe *trapframe;
/* Determine which thread to examine. */
if (have_addr)
td = db_lookup_thread(addr, FALSE);
else
td = curthread;
pcb = td->td_pcb;
db_printf("Thread %d at %p\n", td->td_tid, td);
db_printf("PCB at %p\n", pcb);
trapframe = &pcb->pcb_regs;
db_printf("Trapframe at %p\n", trapframe);
DB_PRINT_REG(trapframe, zero);
DB_PRINT_REG(trapframe, ast);
DB_PRINT_REG(trapframe, v0);
DB_PRINT_REG(trapframe, v1);
DB_PRINT_REG(trapframe, a0);
DB_PRINT_REG(trapframe, a1);
DB_PRINT_REG(trapframe, a2);
DB_PRINT_REG(trapframe, a3);
DB_PRINT_REG(trapframe, t0);
DB_PRINT_REG(trapframe, t1);
DB_PRINT_REG(trapframe, t2);
DB_PRINT_REG(trapframe, t3);
DB_PRINT_REG(trapframe, t4);
DB_PRINT_REG(trapframe, t5);
DB_PRINT_REG(trapframe, t6);
DB_PRINT_REG(trapframe, t7);
DB_PRINT_REG(trapframe, s0);
DB_PRINT_REG(trapframe, s1);
DB_PRINT_REG(trapframe, s2);
DB_PRINT_REG(trapframe, s3);
DB_PRINT_REG(trapframe, s4);
DB_PRINT_REG(trapframe, s5);
DB_PRINT_REG(trapframe, s6);
DB_PRINT_REG(trapframe, s7);
DB_PRINT_REG(trapframe, t8);
DB_PRINT_REG(trapframe, t9);
DB_PRINT_REG(trapframe, k0);
DB_PRINT_REG(trapframe, k1);
DB_PRINT_REG(trapframe, gp);
DB_PRINT_REG(trapframe, sp);
DB_PRINT_REG(trapframe, s8);
DB_PRINT_REG(trapframe, ra);
DB_PRINT_REG(trapframe, sr);
DB_PRINT_REG(trapframe, mullo);
DB_PRINT_REG(trapframe, mulhi);
DB_PRINT_REG(trapframe, badvaddr);
DB_PRINT_REG(trapframe, cause);
DB_PRINT_REG(trapframe, pc);
db_printf("PCB Context:\n");
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S0);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S1);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S2);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S3);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S4);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S5);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S6);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S7);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_SP);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S8);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_RA);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_SR);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_GP);
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_PC);
db_printf("PCB onfault = %d\n", pcb->pcb_onfault);
db_printf("md_saved_intr = 0x%0lx\n", (long)td->td_md.md_saved_intr);
db_printf("md_spinlock_count = %d\n", td->td_md.md_spinlock_count);
if (td->td_frame != trapframe) {
db_printf("td->td_frame %p is not the same as pcb_regs %p\n",
td->td_frame, trapframe);
}
}
#endif /* DDB */