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Add a DDB command "show trapframe" to dump out contents of the trapframe

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specified by the first argument.

Approved by: imp (mentor)
This commit is contained in:
Neel Natu 2010-01-26 03:29:52 +00:00
parent 358be222bc
commit 182003557b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202999
1 changed files with 37 additions and 17 deletions
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54
sys/mips/mips/vm_machdep.c
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@ -599,26 +599,12 @@ cpu_throw(struct thread *old, struct thread *new)
#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)
static void
dump_trapframe(struct trapframe *trapframe)
{
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);
@ -657,6 +643,28 @@ DB_SHOW_COMMAND(pcb, ddb_dump_pcb)
DB_PRINT_REG(trapframe, badvaddr);
DB_PRINT_REG(trapframe, cause);
DB_PRINT_REG(trapframe, pc);
}
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, TRUE);
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;
dump_trapframe(trapframe);
db_printf("PCB Context:\n");
DB_PRINT_REG_ARRAY(pcb, pcb_context, PCB_REG_S0);
@ -684,4 +692,16 @@ DB_SHOW_COMMAND(pcb, ddb_dump_pcb)
}
}
/*
* Dump the trapframe beginning at address specified by first argument.
*/
DB_SHOW_COMMAND(trapframe, ddb_dump_trapframe)
{
if (!have_addr)
return;
dump_trapframe((struct trapframe *)addr);
}
#endif /* DDB */