diff options
Diffstat (limited to 'sys/amd64')
-rw-r--r-- | sys/amd64/amd64/db_trace.c | 69 | ||||
-rw-r--r-- | sys/amd64/amd64/machdep.c | 25 |
2 files changed, 43 insertions, 51 deletions
diff --git a/sys/amd64/amd64/db_trace.c b/sys/amd64/amd64/db_trace.c index d29d23e..381237b 100644 --- a/sys/amd64/amd64/db_trace.c +++ b/sys/amd64/amd64/db_trace.c @@ -52,15 +52,8 @@ __FBSDID("$FreeBSD$"); #include <ddb/db_sym.h> #include <ddb/db_variables.h> -static db_varfcn_t db_dr0; -static db_varfcn_t db_dr1; -static db_varfcn_t db_dr2; -static db_varfcn_t db_dr3; -static db_varfcn_t db_dr4; -static db_varfcn_t db_dr5; -static db_varfcn_t db_dr6; -static db_varfcn_t db_dr7; static db_varfcn_t db_frame; +static db_varfcn_t db_frame_seg; CTASSERT(sizeof(struct dbreg) == sizeof(((struct pcpu *)NULL)->pc_dbreg)); @@ -69,12 +62,12 @@ CTASSERT(sizeof(struct dbreg) == sizeof(((struct pcpu *)NULL)->pc_dbreg)); */ #define DB_OFFSET(x) (db_expr_t *)offsetof(struct trapframe, x) struct db_variable db_regs[] = { - { "cs", DB_OFFSET(tf_cs), db_frame }, - { "ds", DB_OFFSET(tf_ds), db_frame }, - { "es", DB_OFFSET(tf_es), db_frame }, - { "fs", DB_OFFSET(tf_fs), db_frame }, - { "gs", DB_OFFSET(tf_gs), db_frame }, - { "ss", DB_OFFSET(tf_ss), db_frame }, + { "cs", DB_OFFSET(tf_cs), db_frame_seg }, + { "ds", DB_OFFSET(tf_ds), db_frame_seg }, + { "es", DB_OFFSET(tf_es), db_frame_seg }, + { "fs", DB_OFFSET(tf_fs), db_frame_seg }, + { "gs", DB_OFFSET(tf_gs), db_frame_seg }, + { "ss", DB_OFFSET(tf_ss), db_frame_seg }, { "rax", DB_OFFSET(tf_rax), db_frame }, { "rcx", DB_OFFSET(tf_rcx), db_frame }, { "rdx", DB_OFFSET(tf_rdx), db_frame }, @@ -93,40 +86,24 @@ struct db_variable db_regs[] = { { "r15", DB_OFFSET(tf_r15), db_frame }, { "rip", DB_OFFSET(tf_rip), db_frame }, { "rflags", DB_OFFSET(tf_rflags), db_frame }, -#define DB_N_SHOW_REGS 24 /* Don't show registers after here. */ - { "dr0", NULL, db_dr0 }, - { "dr1", NULL, db_dr1 }, - { "dr2", NULL, db_dr2 }, - { "dr3", NULL, db_dr3 }, - { "dr4", NULL, db_dr4 }, - { "dr5", NULL, db_dr5 }, - { "dr6", NULL, db_dr6 }, - { "dr7", NULL, db_dr7 }, }; -struct db_variable *db_eregs = db_regs + DB_N_SHOW_REGS; - -#define DB_DRX_FUNC(reg) \ -static int \ -db_ ## reg (vp, valuep, op) \ - struct db_variable *vp; \ - db_expr_t * valuep; \ - int op; \ -{ \ - if (op == DB_VAR_GET) \ - *valuep = r ## reg (); \ - else \ - load_ ## reg (*valuep); \ - return (1); \ -} +struct db_variable *db_eregs = db_regs + nitems(db_regs); + +static int +db_frame_seg(struct db_variable *vp, db_expr_t *valuep, int op) +{ + uint16_t *reg; + + if (kdb_frame == NULL) + return (0); -DB_DRX_FUNC(dr0) -DB_DRX_FUNC(dr1) -DB_DRX_FUNC(dr2) -DB_DRX_FUNC(dr3) -DB_DRX_FUNC(dr4) -DB_DRX_FUNC(dr5) -DB_DRX_FUNC(dr6) -DB_DRX_FUNC(dr7) + reg = (uint16_t *)((uintptr_t)kdb_frame + (db_expr_t)vp->valuep); + if (op == DB_VAR_GET) + *valuep = *reg; + else + *reg = *valuep; + return (1); +} static int db_frame(struct db_variable *vp, db_expr_t *valuep, int op) diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index 83b5e65..f501e99 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -1238,11 +1238,26 @@ DB_SHOW_COMMAND(sysregs, db_show_sysregs) db_printf("cr2\t0x%016lx\n", rcr2()); db_printf("cr3\t0x%016lx\n", rcr3()); db_printf("cr4\t0x%016lx\n", rcr4()); - db_printf("EFER\t%016lx\n", rdmsr(MSR_EFER)); - db_printf("FEATURES_CTL\t%016lx\n", rdmsr(MSR_IA32_FEATURE_CONTROL)); - db_printf("DEBUG_CTL\t%016lx\n", rdmsr(MSR_DEBUGCTLMSR)); - db_printf("PAT\t%016lx\n", rdmsr(MSR_PAT)); - db_printf("GSBASE\t%016lx\n", rdmsr(MSR_GSBASE)); + if (rcr4() & CR4_XSAVE) + db_printf("xcr0\t0x%016lx\n", rxcr(0)); + db_printf("EFER\t0x%016lx\n", rdmsr(MSR_EFER)); + if (cpu_feature2 & (CPUID2_VMX | CPUID2_SMX)) + db_printf("FEATURES_CTL\t%016lx\n", + rdmsr(MSR_IA32_FEATURE_CONTROL)); + db_printf("DEBUG_CTL\t0x%016lx\n", rdmsr(MSR_DEBUGCTLMSR)); + db_printf("PAT\t0x%016lx\n", rdmsr(MSR_PAT)); + db_printf("GSBASE\t0x%016lx\n", rdmsr(MSR_GSBASE)); +} + +DB_SHOW_COMMAND(dbregs, db_show_dbregs) +{ + + db_printf("dr0\t0x%016lx\n", rdr0()); + db_printf("dr1\t0x%016lx\n", rdr1()); + db_printf("dr2\t0x%016lx\n", rdr2()); + db_printf("dr3\t0x%016lx\n", rdr3()); + db_printf("dr6\t0x%016lx\n", rdr6()); + db_printf("dr7\t0x%016lx\n", rdr7()); } #endif |