Merge db_interface.c and db_trace.c into db_machdep.c.

This commit is contained in:
Marcel Moolenaar 2005-09-10 03:18:51 +00:00
parent 216e80c2ba
commit 8115693121
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=149926
3 changed files with 284 additions and 332 deletions

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@ -96,8 +96,7 @@ ia64/ia64/autoconf.c standard
ia64/ia64/busdma_machdep.c standard
ia64/ia64/clock.c standard
ia64/ia64/context.S standard
ia64/ia64/db_interface.c optional ddb
ia64/ia64/db_trace.c optional ddb
ia64/ia64/db_machdep.c optional ddb
ia64/ia64/dump_machdep.c standard
ia64/ia64/efi.c standard
ia64/ia64/elf_machdep.c standard

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@ -1,37 +1,34 @@
/*-
* Mach Operating System
* Copyright (c) 1992,1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
* Copyright (c) 2003-2005 Marcel Moolenaar
* Copyright (c) 2000-2001 Doug Rabson
* All rights reserved.
*
* db_interface.c,v 2.4 1991/02/05 17:11:13 mrt (CMU)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Interface to DDB.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/cons.h>
@ -41,6 +38,7 @@ __FBSDID("$FreeBSD$");
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/smp.h>
#include <sys/stack.h>
#include <vm/vm.h>
@ -48,10 +46,14 @@ __FBSDID("$FreeBSD$");
#include <machine/frame.h>
#include <machine/md_var.h>
#include <machine/mutex.h>
#include <machine/pcb.h>
#include <machine/setjmp.h>
#include <machine/unwind.h>
#include <machine/vmparam.h>
#include <ddb/ddb.h>
#include <ddb/db_access.h>
#include <ddb/db_output.h>
#include <ddb/db_sym.h>
#include <ddb/db_variables.h>
@ -64,9 +66,14 @@ __FBSDID("$FreeBSD$");
#define SLOT_MASK ((1ULL << SLOT_BITS) - 1ULL)
#define SLOT_SHIFT(i) (TMPL_BITS+((i)<<3)+(i))
typedef db_expr_t __db_f(db_expr_t, db_expr_t, db_expr_t, db_expr_t, db_expr_t,
db_expr_t, db_expr_t, db_expr_t);
register uint64_t __db_gp __asm__("gp");
static db_varfcn_t db_frame;
static db_varfcn_t db_getrse;
static db_varfcn_t db_getip;
static db_varfcn_t db_getrse;
#define DB_OFFSET(x) (db_expr_t *)offsetof(struct trapframe, x)
struct db_variable db_regs[] = {
@ -213,132 +220,85 @@ struct db_variable db_regs[] = {
struct db_variable *db_eregs = db_regs + sizeof(db_regs)/sizeof(db_regs[0]);
static int
db_frame(struct db_variable *vp, db_expr_t *valuep, int op)
db_backtrace(struct thread *td, struct pcb *pcb, int count)
{
uint64_t *reg;
struct unw_regstate rs;
struct trapframe *tf;
const char *name;
db_expr_t offset;
uint64_t bsp, cfm, ip, pfs, reg, sp;
c_db_sym_t sym;
int args, error, i, quit;
if (kdb_frame == NULL)
return (0);
reg = (uint64_t*)((uintptr_t)kdb_frame + (uintptr_t)vp->valuep);
if (op == DB_VAR_GET)
*valuep = *reg;
else
*reg = *valuep;
return (1);
}
quit = 0;
db_setup_paging(db_simple_pager, &quit, db_lines_per_page);
error = unw_create_from_pcb(&rs, pcb);
while (!error && count-- && !quit) {
error = unw_get_cfm(&rs, &cfm);
if (!error)
error = unw_get_bsp(&rs, &bsp);
if (!error)
error = unw_get_ip(&rs, &ip);
if (!error)
error = unw_get_sp(&rs, &sp);
if (error)
break;
static int
db_getrse(struct db_variable *vp, db_expr_t *valuep, int op)
{
u_int64_t *reg;
uint64_t bsp;
int nats, regno, sof;
args = IA64_CFM_SOL(cfm);
if (args > 8)
args = 8;
if (kdb_frame == NULL)
return (0);
error = unw_step(&rs);
if (!error) {
if (!unw_get_cfm(&rs, &pfs)) {
i = IA64_CFM_SOF(pfs) - IA64_CFM_SOL(pfs);
if (args > i)
args = i;
}
}
regno = (int)(intptr_t)valuep;
bsp = kdb_frame->tf_special.bspstore + kdb_frame->tf_special.ndirty;
sof = (int)(kdb_frame->tf_special.cfm & 0x7f);
sym = db_search_symbol(ip, DB_STGY_ANY, &offset);
db_symbol_values(sym, &name, NULL);
db_printf("%s(", name);
if (bsp >= IA64_RR_BASE(5)) {
for (i = 0; i < args; i++) {
if ((bsp & 0x1ff) == 0x1f8)
bsp += 8;
db_read_bytes(bsp, sizeof(reg), (void*)&reg);
if (i > 0)
db_printf(", ");
db_printf("0x%lx", reg);
bsp += 8;
}
} else
db_printf("...");
db_printf(") at ");
if (regno >= sof)
return (0);
db_printsym(ip, DB_STGY_PROC);
db_printf("\n");
nats = (sof - regno + 63 - ((int)(bsp >> 3) & 0x3f)) / 63;
reg = (void*)(bsp - ((sof - regno + nats) << 3));
if (op == DB_VAR_GET)
*valuep = *reg;
else
*reg = *valuep;
return (1);
}
if (error != ERESTART)
continue;
if (sp < IA64_RR_BASE(5))
break;
static int
db_getip(struct db_variable *vp, db_expr_t *valuep, int op)
{
u_long iip, slot;
tf = (struct trapframe *)(sp + 16);
if ((tf->tf_flags & FRAME_SYSCALL) != 0 ||
tf->tf_special.iip < IA64_RR_BASE(5))
break;
if (kdb_frame == NULL)
return (0);
if (op == DB_VAR_GET) {
iip = kdb_frame->tf_special.iip;
slot = (kdb_frame->tf_special.psr >> 41) & 3;
*valuep = iip + slot;
} else {
iip = *valuep & ~0xf;
slot = *valuep & 0xf;
if (slot > 2)
return (0);
kdb_frame->tf_special.iip = iip;
kdb_frame->tf_special.psr &= ~IA64_PSR_RI;
kdb_frame->tf_special.psr |= slot << 41;
/* XXX ask if we should unwind across the trapframe. */
db_printf("--- trapframe at %p\n", tf);
unw_delete(&rs);
error = unw_create_from_frame(&rs, tf);
}
return (1);
}
/*
* Read bytes from kernel address space for debugger.
*/
int
db_read_bytes(vm_offset_t addr, size_t size, char *data)
{
jmp_buf jb;
void *prev_jb;
char *src;
int ret;
prev_jb = kdb_jmpbuf(jb);
ret = setjmp(jb);
if (ret == 0) {
src = (char *)addr;
while (size-- > 0)
*data++ = *src++;
}
(void)kdb_jmpbuf(prev_jb);
return (ret);
}
/*
* Write bytes to kernel address space for debugger.
*/
int
db_write_bytes(vm_offset_t addr, size_t size, char *data)
{
jmp_buf jb;
void *prev_jb;
char *dst;
int ret;
prev_jb = kdb_jmpbuf(jb);
ret = setjmp(jb);
if (ret == 0) {
dst = (char *)addr;
while (size-- > 0)
*dst++ = *data++;
}
(void)kdb_jmpbuf(prev_jb);
return (ret);
}
void
db_bkpt_write(db_addr_t addr, BKPT_INST_TYPE *storage)
{
BKPT_INST_TYPE tmp;
db_addr_t loc;
int slot;
slot = addr & 0xfUL;
if (slot >= SLOT_COUNT)
return;
loc = (addr & ~0xfUL) + (slot << 2);
db_read_bytes(loc, sizeof(BKPT_INST_TYPE), (char *)&tmp);
*storage = (tmp >> SLOT_SHIFT(slot)) & SLOT_MASK;
tmp &= ~(SLOT_MASK << SLOT_SHIFT(slot));
tmp |= (0x84000 << 6) << SLOT_SHIFT(slot);
db_write_bytes(loc, sizeof(BKPT_INST_TYPE), (char *)&tmp);
unw_delete(&rs);
/*
* EJUSTRETURN and ERESTART signal the end of a trace and
* are not really errors.
*/
return ((error > 0) ? error : 0);
}
void
@ -373,6 +333,26 @@ db_bkpt_skip(void)
}
}
void
db_bkpt_write(db_addr_t addr, BKPT_INST_TYPE *storage)
{
BKPT_INST_TYPE tmp;
db_addr_t loc;
int slot;
slot = addr & 0xfUL;
if (slot >= SLOT_COUNT)
return;
loc = (addr & ~0xfUL) + (slot << 2);
db_read_bytes(loc, sizeof(BKPT_INST_TYPE), (char *)&tmp);
*storage = (tmp >> SLOT_SHIFT(slot)) & SLOT_MASK;
tmp &= ~(SLOT_MASK << SLOT_SHIFT(slot));
tmp |= (0x84000 << 6) << SLOT_SHIFT(slot);
db_write_bytes(loc, sizeof(BKPT_INST_TYPE), (char *)&tmp);
}
db_addr_t
db_disasm(db_addr_t loc, boolean_t altfmt)
{
@ -444,11 +424,6 @@ db_disasm(db_addr_t loc, boolean_t altfmt)
return (loc + slot);
}
typedef db_expr_t __db_f(db_expr_t, db_expr_t, db_expr_t, db_expr_t, db_expr_t,
db_expr_t, db_expr_t, db_expr_t);
register uint64_t __db_gp __asm__("gp");
int
db_fncall_ia64(db_expr_t addr, db_expr_t *rv, int nargs, db_expr_t args[])
{
@ -463,7 +438,167 @@ db_fncall_ia64(db_expr_t addr, db_expr_t *rv, int nargs, db_expr_t args[])
return (1);
}
static int
db_frame(struct db_variable *vp, db_expr_t *valuep, int op)
{
uint64_t *reg;
if (kdb_frame == NULL)
return (0);
reg = (uint64_t*)((uintptr_t)kdb_frame + (uintptr_t)vp->valuep);
if (op == DB_VAR_GET)
*valuep = *reg;
else
*reg = *valuep;
return (1);
}
static int
db_getip(struct db_variable *vp, db_expr_t *valuep, int op)
{
u_long iip, slot;
if (kdb_frame == NULL)
return (0);
if (op == DB_VAR_GET) {
iip = kdb_frame->tf_special.iip;
slot = (kdb_frame->tf_special.psr >> 41) & 3;
*valuep = iip + slot;
} else {
iip = *valuep & ~0xf;
slot = *valuep & 0xf;
if (slot > 2)
return (0);
kdb_frame->tf_special.iip = iip;
kdb_frame->tf_special.psr &= ~IA64_PSR_RI;
kdb_frame->tf_special.psr |= slot << 41;
}
return (1);
}
static int
db_getrse(struct db_variable *vp, db_expr_t *valuep, int op)
{
u_int64_t *reg;
uint64_t bsp;
int nats, regno, sof;
if (kdb_frame == NULL)
return (0);
regno = (int)(intptr_t)valuep;
bsp = kdb_frame->tf_special.bspstore + kdb_frame->tf_special.ndirty;
sof = (int)(kdb_frame->tf_special.cfm & 0x7f);
if (regno >= sof)
return (0);
nats = (sof - regno + 63 - ((int)(bsp >> 3) & 0x3f)) / 63;
reg = (void*)(bsp - ((sof - regno + nats) << 3));
if (op == DB_VAR_GET)
*valuep = *reg;
else
*reg = *valuep;
return (1);
}
int
db_md_clr_watchpoint(db_expr_t addr, db_expr_t size)
{
return (-1);
}
void
db_md_list_watchpoints()
{
return;
}
int
db_md_set_watchpoint(db_expr_t addr, db_expr_t size)
{
return (-1);
}
/*
* Read bytes from kernel address space for debugger.
*/
int
db_read_bytes(vm_offset_t addr, size_t size, char *data)
{
jmp_buf jb;
void *prev_jb;
char *src;
int ret;
prev_jb = kdb_jmpbuf(jb);
ret = setjmp(jb);
if (ret == 0) {
src = (char *)addr;
while (size-- > 0)
*data++ = *src++;
}
(void)kdb_jmpbuf(prev_jb);
return (ret);
}
/*
* Write bytes to kernel address space for debugger.
*/
int
db_write_bytes(vm_offset_t addr, size_t size, char *data)
{
jmp_buf jb;
void *prev_jb;
char *dst;
int ret;
prev_jb = kdb_jmpbuf(jb);
ret = setjmp(jb);
if (ret == 0) {
dst = (char *)addr;
while (size-- > 0)
*dst++ = *data++;
}
(void)kdb_jmpbuf(prev_jb);
return (ret);
}
void
db_show_mdpcpu(struct pcpu *pc)
{
}
void
db_trace_self(void)
{
struct pcb pcb;
savectx(&pcb);
db_backtrace(curthread, &pcb, -1);
}
int
db_trace_thread(struct thread *td, int count)
{
struct pcb *ctx;
ctx = kdb_thr_ctx(td);
return (db_backtrace(td, ctx, count));
}
void
stack_save(struct stack *st)
{
stack_zero(st);
/*
* Nothing for now.
* Is libuwx reentrant?
* Can unw_create* sleep?
*/
}

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@ -1,182 +0,0 @@
/*-
* Copyright (c) 2003, 2004 Marcel Moolenaar
* Copyright (c) 2000-2001 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/kdb.h>
#include <sys/proc.h>
#include <sys/stack.h>
#include <machine/db_machdep.h>
#include <machine/frame.h>
#include <machine/md_var.h>
#include <machine/pcb.h>
#include <machine/unwind.h>
#include <machine/vmparam.h>
#include <ddb/ddb.h>
#include <ddb/db_sym.h>
#include <ddb/db_access.h>
#include <ddb/db_variables.h>
#include <ddb/db_output.h>
static int
db_backtrace(struct thread *td, struct pcb *pcb, int count)
{
struct unw_regstate rs;
struct trapframe *tf;
const char *name;
db_expr_t offset;
uint64_t bsp, cfm, ip, pfs, reg, sp;
c_db_sym_t sym;
int args, error, i, quit;
quit = 0;
db_setup_paging(db_simple_pager, &quit, db_lines_per_page);
error = unw_create_from_pcb(&rs, pcb);
while (!error && count-- && !quit) {
error = unw_get_cfm(&rs, &cfm);
if (!error)
error = unw_get_bsp(&rs, &bsp);
if (!error)
error = unw_get_ip(&rs, &ip);
if (!error)
error = unw_get_sp(&rs, &sp);
if (error)
break;
args = IA64_CFM_SOL(cfm);
if (args > 8)
args = 8;
error = unw_step(&rs);
if (!error) {
if (!unw_get_cfm(&rs, &pfs)) {
i = IA64_CFM_SOF(pfs) - IA64_CFM_SOL(pfs);
if (args > i)
args = i;
}
}
sym = db_search_symbol(ip, DB_STGY_ANY, &offset);
db_symbol_values(sym, &name, NULL);
db_printf("%s(", name);
if (bsp >= IA64_RR_BASE(5)) {
for (i = 0; i < args; i++) {
if ((bsp & 0x1ff) == 0x1f8)
bsp += 8;
db_read_bytes(bsp, sizeof(reg), (void*)&reg);
if (i > 0)
db_printf(", ");
db_printf("0x%lx", reg);
bsp += 8;
}
} else
db_printf("...");
db_printf(") at ");
db_printsym(ip, DB_STGY_PROC);
db_printf("\n");
if (error != ERESTART)
continue;
if (sp < IA64_RR_BASE(5))
break;
tf = (struct trapframe *)(sp + 16);
if ((tf->tf_flags & FRAME_SYSCALL) != 0 ||
tf->tf_special.iip < IA64_RR_BASE(5))
break;
/* XXX ask if we should unwind across the trapframe. */
db_printf("--- trapframe at %p\n", tf);
unw_delete(&rs);
error = unw_create_from_frame(&rs, tf);
}
unw_delete(&rs);
/*
* EJUSTRETURN and ERESTART signal the end of a trace and
* are not really errors.
*/
return ((error > 0) ? error : 0);
}
void
db_trace_self(void)
{
struct pcb pcb;
savectx(&pcb);
db_backtrace(curthread, &pcb, -1);
}
int
db_trace_thread(struct thread *td, int count)
{
struct pcb *ctx;
ctx = kdb_thr_ctx(td);
return (db_backtrace(td, ctx, count));
}
void
stack_save(struct stack *st)
{
stack_zero(st);
/*
* Nothing for now.
* Is libuwx reentrant?
* Can unw_create* sleep?
*/
}
int
db_md_set_watchpoint(addr, size)
db_expr_t addr;
db_expr_t size;
{
return (-1);
}
int
db_md_clr_watchpoint(addr, size)
db_expr_t addr;
db_expr_t size;
{
return (-1);
}
void
db_md_list_watchpoints()
{
return;
}