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Implement db_frame() and use it to obtain the registers value.

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Approved by:	re (blanket)
This commit is contained in:
Olivier Houchard 2005-06-23 11:38:47 +00:00
parent a95e819956
commit 31897fe80e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=147543
1 changed files with 45 additions and 22 deletions
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67
sys/arm/arm/db_interface.c
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@ -71,27 +71,29 @@ int db_access_und_sp (struct db_variable *, db_expr_t *, int);
int db_access_abt_sp (struct db_variable *, db_expr_t *, int);
int db_access_irq_sp (struct db_variable *, db_expr_t *, int);
static db_varfcn_t db_frame;
#define DB_OFFSET(x) (db_expr_t *)offsetof(struct trapframe, x)
struct db_variable db_regs[] = {
{ "spsr", DB_OFFSET(tf_spsr), FCN_NULL, },
{ "r0", DB_OFFSET(tf_r0), FCN_NULL, },
{ "r1", DB_OFFSET(tf_r1), FCN_NULL, },
{ "r2", DB_OFFSET(tf_r2), FCN_NULL, },
{ "r3", DB_OFFSET(tf_r3), FCN_NULL, },
{ "r4", DB_OFFSET(tf_r4), FCN_NULL, },
{ "r5", DB_OFFSET(tf_r5), FCN_NULL, },
{ "r6", DB_OFFSET(tf_r6), FCN_NULL, },
{ "r7", DB_OFFSET(tf_r7), FCN_NULL, },
{ "r8", DB_OFFSET(tf_r8), FCN_NULL, },
{ "r9", DB_OFFSET(tf_r9), FCN_NULL, },
{ "r10", DB_OFFSET(tf_r10), FCN_NULL, },
{ "r11", DB_OFFSET(tf_r11), FCN_NULL, },
{ "r12", DB_OFFSET(tf_r12), FCN_NULL, },
{ "usr_sp", DB_OFFSET(tf_usr_sp), FCN_NULL, },
{ "usr_lr", DB_OFFSET(tf_usr_lr), FCN_NULL, },
{ "svc_sp", DB_OFFSET(tf_svc_sp), FCN_NULL, },
{ "svc_lr", DB_OFFSET(tf_svc_lr), FCN_NULL, },
{ "pc", DB_OFFSET(tf_pc), FCN_NULL, },
{ "spsr", DB_OFFSET(tf_spsr), db_frame },
{ "r0", DB_OFFSET(tf_r0), db_frame },
{ "r1", DB_OFFSET(tf_r1), db_frame },
{ "r2", DB_OFFSET(tf_r2), db_frame },
{ "r3", DB_OFFSET(tf_r3), db_frame },
{ "r4", DB_OFFSET(tf_r4), db_frame },
{ "r5", DB_OFFSET(tf_r5), db_frame },
{ "r6", DB_OFFSET(tf_r6), db_frame },
{ "r7", DB_OFFSET(tf_r7), db_frame },
{ "r8", DB_OFFSET(tf_r8), db_frame },
{ "r9", DB_OFFSET(tf_r9), db_frame },
{ "r10", DB_OFFSET(tf_r10), db_frame },
{ "r11", DB_OFFSET(tf_r11), db_frame },
{ "r12", DB_OFFSET(tf_r12), db_frame },
{ "usr_sp", DB_OFFSET(tf_usr_sp), db_frame },
{ "usr_lr", DB_OFFSET(tf_usr_lr), db_frame },
{ "svc_sp", DB_OFFSET(tf_svc_sp), db_frame },
{ "svc_lr", DB_OFFSET(tf_svc_lr), db_frame },
{ "pc", DB_OFFSET(tf_pc), db_frame },
{ "und_sp", &nil, db_access_und_sp, },
{ "abt_sp", &nil, db_access_abt_sp, },
{ "irq_sp", &nil, db_access_irq_sp, },
@ -103,8 +105,10 @@ int
db_access_und_sp(struct db_variable *vp, db_expr_t *valp, int rw)
{
if (rw == DB_VAR_GET)
if (rw == DB_VAR_GET) {
*valp = get_stackptr(PSR_UND32_MODE);
return (1);
}
return(0);
}
@ -112,8 +116,10 @@ int
db_access_abt_sp(struct db_variable *vp, db_expr_t *valp, int rw)
{
if (rw == DB_VAR_GET)
if (rw == DB_VAR_GET) {
*valp = get_stackptr(PSR_ABT32_MODE);
return (1);
}
return(0);
}
@ -121,11 +127,28 @@ int
db_access_irq_sp(struct db_variable *vp, db_expr_t *valp, int rw)
{
if (rw == DB_VAR_GET)
if (rw == DB_VAR_GET) {
*valp = get_stackptr(PSR_IRQ32_MODE);
return (1);
}
return(0);
}
int db_frame(struct db_variable *vp, db_expr_t *valp, int rw)
{
int *reg;
if (kdb_frame == NULL)
return (0);
reg = (int *)((uintptr_t)kdb_frame + (db_expr_t)vp->valuep);
if (rw == DB_VAR_GET)
*valp = *reg;
else
*reg = *valp;
return(1);
}
void
db_show_mdpcpu(struct pcpu *pc)
{