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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] xenitp improvements
# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1191339105 21600
# Node ID 9f2b83a34453e6c41721a8ad2b691b083e21e0a4
# Parent 669347b873fa6ef23aff42e662ce2422792be913
[IA64] xenitp improvements
Remove all the casts by using char * instead of unsigned char *.
The go command now accept a number.
The disass command can now accept a range.
Number of TRs is not hard-coded.
'-' (minus) can now be used in expressions.
'$iip' and '$b0' can be used in expressions.
Signed-off-by: Tristan Gingold <tgingold@xxxxxxx>
---
tools/debugger/xenitp/xenitp.c | 248 +++++++++++++++++++++++------------------
1 files changed, 140 insertions(+), 108 deletions(-)
diff -r 669347b873fa -r 9f2b83a34453 tools/debugger/xenitp/xenitp.c
--- a/tools/debugger/xenitp/xenitp.c Tue Oct 02 09:20:41 2007 -0600
+++ b/tools/debugger/xenitp/xenitp.c Tue Oct 02 09:31:45 2007 -0600
@@ -57,7 +57,7 @@ static int cur_vcpu;
int virt_to_phys (int is_inst, unsigned long vaddr, unsigned long *paddr);
-inline unsigned int ctx_slot (vcpu_guest_context_t *ctx)
+static inline unsigned int ctx_slot (vcpu_guest_context_t *ctx)
{
return (ctx->regs.psr >> PSR_RI_SHIFT) & 3;
}
@@ -65,7 +65,7 @@ unsigned char *
unsigned char *
target_map_memory (unsigned long paddr)
{
- static unsigned long cur_page = -1;
+ static unsigned long cur_page = (unsigned long)-1;
static unsigned char *cur_map = NULL;
if ((paddr >> XC_PAGE_SHIFT) != cur_page) {
@@ -243,8 +243,6 @@ void target_disas (FILE *out, unsigned l
unsigned long pc;
int count;
struct disassemble_info disasm_info;
- int slot;
- int (*print_insn)(bfd_vma pc, disassemble_info *info);
INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf);
@@ -257,14 +255,15 @@ void target_disas (FILE *out, unsigned l
disasm_info.endian = BFD_ENDIAN_LITTLE;
disasm_info.mach = 0; //bfd_mach_ia64;
- print_insn = print_insn_ia64;
-
- for (pc = code, slot = 0; pc < code + size; pc += count, slot++) {
- fprintf (out, "0x%016lx+%d:%c ", code, slot,
+
+ for (pc = code; pc < code + size; pc += count) {
+ int slot = (pc & 0x0f) / 6;
+ fprintf (out, "0x%016lx+%d:%c ", pc & ~0x0fUL, slot,
((pc & ~0x0fUL) == cur_ctx->regs.ip
&& slot == ctx_slot (cur_ctx)) ? '*' : ' ');
- count = print_insn (pc, &disasm_info);
+ count = print_insn_ia64 (pc, &disasm_info);
+
#if 0
{
int i;
@@ -337,7 +336,7 @@ static void print_a_tr (int i, const str
ma_val = tr->pte >> PTE_MA_SHIFT & PTE_MA_MASK;
pa = (tr->pte >> PTE_PPN_SHIFT & PTE_PPN_MASK) << PTE_PPN_SHIFT;
pa = (pa >> ps_val) << ps_val;
- printf (" [%d] %ld %06lx %016lx %013lx %02d %s %ld %ld %ld %ld "
+ printf (" [%2d] %ld %06lx %016lx %013lx %02d %s %ld %ld %ld %ld "
"%ld %d %s %06lx\n", i,
tr->pte >> PTE_P_SHIFT & PTE_P_MASK,
tr->rid >> RR_RID_SHIFT & RR_RID_MASK,
@@ -638,13 +637,13 @@ void print_tr (vcpu_guest_context_t *ctx
printf ("\n itr: P rid va pa ps ed pl "
"ar a d ma key\n");
- for (i = 0; i < 8; i++)
+ for (i = 0; i < sizeof (tr->itrs) / sizeof (tr->itrs[0]); i++)
print_a_tr (i, &tr->itrs[i]);
printf ("\n dtr: P rid va pa ps ed pl "
"ar a d ma key\n");
- for (i = 0; i < 8; i++)
+ for (i = 0; i < sizeof (tr->dtrs) / sizeof (tr->dtrs[0]); i++)
print_a_tr (i, &tr->dtrs[i]);
}
@@ -734,15 +733,21 @@ int wait_domain (int vcpu, vcpu_guest_co
int virt_to_phys (int is_inst, unsigned long vaddr, unsigned long *paddr)
{
+ struct vcpu_tr_regs *trs = &cur_ctx->regs.tr;
struct ia64_tr_entry *tr;
int i;
+ int num;
/* Search in tr. */
- if (is_inst)
- tr = cur_ctx->regs.tr.itrs;
- else
- tr = cur_ctx->regs.tr.dtrs;
- for (i = 0; i < 8; i++, tr++) {
+ if (is_inst) {
+ tr = trs->itrs;
+ num = sizeof (trs->itrs) / sizeof (trs->itrs[0]);
+ }
+ else {
+ tr = trs->dtrs;
+ num = sizeof (trs->dtrs) / sizeof (trs->dtrs[0]);
+ }
+ for (i = 0; i < num; i++, tr++) {
int ps_val = (tr->itir >> ITIR_PS_SHIFT) & ITIR_PS_MASK;
unsigned long ps_mask = (-1L) << ps_val;
@@ -762,40 +767,44 @@ get_reg_addr (const char *name)
return &cur_ctx->regs.ip;
else if (strcmp (name, "psr") == 0)
return &cur_ctx->regs.psr;
+ else if (strcmp (name, "iip") == 0)
+ return &cur_ctx->regs.cr.iip;
+ else if (strcmp (name, "b0") == 0)
+ return &cur_ctx->regs.b[0];
else
return 0;
}
enum prio_expr {EXPR_BASE, EXPR_SUM, EXPR_LOGIC, EXPR_PROD};
-int parse_expr (unsigned char **buf, unsigned long *res, enum prio_expr prio);
-
-int next_char (unsigned char **buf)
-{
- unsigned char *b;
+int parse_expr (char **buf, unsigned long *res, enum prio_expr prio);
+
+int next_char (char **buf)
+{
+ char *b;
b = *buf;
- while (isspace (*b))
+ while (isspace ((unsigned char)*b))
b++;
*buf = b;
return *b;
}
-int parse_unary (unsigned char **buf, unsigned long *res)
-{
- unsigned char c;
+int parse_unary (char **buf, unsigned long *res)
+{
+ char c;
c = next_char (buf);
switch (c) {
case '0' ... '9':
{
char *e;
- *res = strtoul ((char *)*buf, &e, 0);
- if (e == (char *)*buf) {
+ *res = strtoul (*buf, &e, 0);
+ if (e == *buf) {
printf ("bad literal\n");
return -1;
}
- *buf = (unsigned char *)e;
+ *buf = e;
}
break;
case '+':
@@ -803,9 +812,9 @@ int parse_unary (unsigned char **buf, un
return parse_unary (buf, res);
case '$':
{
- unsigned char *b;
- unsigned char *e;
- unsigned char c;
+ char *b;
+ char *e;
+ char c;
unsigned long *reg;
int len;
@@ -828,13 +837,13 @@ int parse_unary (unsigned char **buf, un
c = b[len];
b[len] = 0;
- reg = get_reg_addr ((char *)b);
+ reg = get_reg_addr (b);
b[len] = c;
if (reg != NULL)
*res = *reg;
- else if (strncmp ((char *)b, "d2p", len) == 0 ||
- strncmp ((char *)b, "i2p", len) == 0) {
+ else if (strncmp (b, "d2p", len) == 0 ||
+ strncmp (b, "i2p", len) == 0) {
unsigned long vaddr;
*buf = e;
@@ -873,25 +882,29 @@ int parse_unary (unsigned char **buf, un
return 0;
}
-int parse_expr (unsigned char **buf, unsigned long *res, enum prio_expr prio)
+int parse_expr (char **buf, unsigned long *res, enum prio_expr prio)
{
unsigned long val = 0;
unsigned long val1;
+ char c;
if (parse_unary (buf, &val) != 0)
return -1;
while (1) {
- switch (next_char (buf)) {
+ c = next_char (buf);
+ switch (c) {
case '+':
+ case '-':
if (prio > EXPR_SUM)
return 0;
-
(*buf)++;
if (parse_expr (buf, &val1, EXPR_SUM) < 0)
return -1;
-
- val += val1;
+ if (c == '+')
+ val += val1;
+ else
+ val -= val1;
break;
case '*':
if (prio > EXPR_PROD)
@@ -910,17 +923,17 @@ int parse_expr (unsigned char **buf, uns
}
}
-unsigned char *parse_arg (unsigned char **buf)
-{
- unsigned char *res;
- unsigned char *b = *buf;
+char *parse_arg (char **buf)
+{
+ char *res;
+ char *b = *buf;
/* Eat leading spaces. */
- while (isspace (*b))
+ while (isspace ((unsigned char)*b))
b++;
res = b;
- while (*b && !isspace (*b))
+ while (*b && !isspace ((unsigned char)*b))
b++;
/* Set the NUL terminator. */
@@ -948,18 +961,18 @@ struct command_desc
{
const char *name;
const char *help;
- int (*cmd)(unsigned char *line);
+ int (*cmd)(char *line);
};
static int
-cmd_registers (unsigned char *line)
+cmd_registers (char *line)
{
print_ctx (cur_ctx);
return 0;
}
static int
-cmd_sstep (unsigned char *line)
+cmd_sstep (char *line)
{
if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB)) != PSR_SS) {
cur_ctx->regs.psr |= PSR_SS;
@@ -979,27 +992,36 @@ cmd_sstep (unsigned char *line)
}
static int
-cmd_go (unsigned char *line)
-{
- if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB | PSR_DB)) != 0) {
- cur_ctx->regs.psr &= ~(PSR_SS | PSR_TB);
- cur_ctx->regs.psr |= PSR_DD | PSR_ID;
- if (vcpu_setcontext (cur_vcpu) < 0)
+cmd_go (char *line)
+{
+ unsigned long n = 1;
+
+ if (*line != 0) {
+ if (parse_expr (&line, &n, 0) < 0)
return -1;
}
-
- if (wait_domain (cur_vcpu, cur_ctx) < 0) {
- perror ("wait_domain");
- return -1;
- }
-
- print_ctx (cur_ctx);
+ while (n > 0) {
+ /* Set psr.dd and psr.id to skip over current breakpoint. */
+ if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB | PSR_DB)) != 0) {
+ cur_ctx->regs.psr &= ~(PSR_SS | PSR_TB);
+ cur_ctx->regs.psr |= PSR_DD | PSR_ID;
+ if (vcpu_setcontext (cur_vcpu) < 0)
+ return -1;
+ }
+
+ if (wait_domain (cur_vcpu, cur_ctx) < 0) {
+ perror ("wait_domain");
+ return -1;
+ }
+ print_ctx (cur_ctx);
+ n--;
+ }
return 0;
}
static int
-cmd_cb (unsigned char *line)
+cmd_cb (char *line)
{
if ((cur_ctx->regs.psr & (PSR_SS | PSR_TB)) != PSR_TB) {
cur_ctx->regs.psr &= ~PSR_SS;
@@ -1019,35 +1041,42 @@ cmd_cb (unsigned char *line)
}
static int
-cmd_quit (unsigned char *line)
+cmd_quit (char *line)
{
return -2;
}
static int
-cmd_echo (unsigned char *line)
+cmd_echo (char *line)
{
printf ("%s", line);
return 0;
}
static int
-cmd_disassemble (unsigned char *args)
+cmd_disassemble (char *args)
{
static unsigned long addr;
-
- if (*args != 0)
+ unsigned long end_addr = addr + 16;
+
+ if (*args != 0) {
if (parse_expr (&args, &addr, 0) < 0)
return -1;
-
- target_disas (stdout, addr, 16);
- addr += 16;
-
+ if (*args != 0) {
+ if (parse_expr (&args, &end_addr, 0) < 0)
+ return -1;
+ }
+ else
+ end_addr = addr + 16;
+ }
+ target_disas (stdout, addr, end_addr - addr);
+ addr = end_addr;
return 0;
-}
-
-static int
-cmd_break (unsigned char *args)
+
+}
+
+static int
+cmd_break (char *args)
{
unsigned long addr;
int i;
@@ -1072,7 +1101,7 @@ cmd_break (unsigned char *args)
}
static int
-cmd_watch (unsigned char *args)
+cmd_watch (char *args)
{
unsigned long addr;
unsigned long mask;
@@ -1101,7 +1130,7 @@ cmd_watch (unsigned char *args)
}
static int
-cmd_delete (unsigned char *args)
+cmd_delete (char *args)
{
unsigned long num;
@@ -1128,7 +1157,7 @@ cmd_delete (unsigned char *args)
}
static int
-cmd_disable (unsigned char *args)
+cmd_disable (char *args)
{
unsigned long num;
@@ -1146,7 +1175,7 @@ cmd_disable (unsigned char *args)
}
static int
-cmd_enable (unsigned char *args)
+cmd_enable (char *args)
{
unsigned long num;
@@ -1164,7 +1193,7 @@ cmd_enable (unsigned char *args)
}
static int
-cmd_print (unsigned char *args)
+cmd_print (char *args)
{
unsigned long addr;
@@ -1199,37 +1228,38 @@ static const struct bit_xlat debug_flags
{ XEN_IA64_DEBUG_FORCE_DB, "db" },
{ XEN_IA64_DEBUG_ON_TR, "tr" },
{ XEN_IA64_DEBUG_ON_TC, "tc" },
+ /* { XEN_IA64_DEBUG_ON_KEYS, "keys" }, */
{ 0, NULL }
};
static int
-cmd_disp (unsigned char *arg)
-{
- if (strcmp ((char *)arg, "br") == 0)
+cmd_disp (char *arg)
+{
+ if (strcmp (arg, "br") == 0)
print_br (cur_ctx);
- else if (strcmp ((char *)arg, "regs") == 0)
+ else if (strcmp (arg, "regs") == 0)
print_regs (cur_ctx);
- else if (strcmp ((char *)arg, "cr") == 0)
+ else if (strcmp (arg, "cr") == 0)
print_cr (cur_ctx);
- else if (strcmp ((char *)arg, "ar") == 0)
+ else if (strcmp (arg, "ar") == 0)
print_ar (cur_ctx);
- else if (strcmp ((char *)arg, "tr") == 0)
+ else if (strcmp (arg, "tr") == 0)
print_tr (cur_ctx);
- else if (strcmp ((char *)arg, "rr") == 0)
+ else if (strcmp (arg, "rr") == 0)
print_rr (cur_ctx);
- else if (strcmp ((char *)arg, "db") == 0)
+ else if (strcmp (arg, "db") == 0)
print_db (cur_ctx);
- else if (strcmp ((char *)arg, "psr") == 0) {
+ else if (strcmp (arg, "psr") == 0) {
printf ("psr:");
print_bits (psr_bits, cur_ctx->regs.psr);
printf ("\n");
}
- else if (strcmp ((char *)arg, "ipsr") == 0) {
+ else if (strcmp (arg, "ipsr") == 0) {
printf ("ipsr:");
print_bits (psr_bits, cur_ctx->regs.cr.ipsr);
printf ("\n");
}
- else if (strcmp ((char *)arg, "break") == 0) {
+ else if (strcmp (arg, "break") == 0) {
int i;
for (i = 0; i < 4; i++)
@@ -1238,7 +1268,7 @@ cmd_disp (unsigned char *arg)
(cur_ctx->regs.ibr[2 * i + 1] & (1UL << 63)) ?
"enabled" : "disabled");
}
- else if (strcmp ((char *)arg, "domain") == 0) {
+ else if (strcmp (arg, "domain") == 0) {
xc_dominfo_t dominfo;
#ifdef HAVE_DEBUG_OP
xen_ia64_debug_op_t debug_op;
@@ -1269,6 +1299,8 @@ cmd_disp (unsigned char *arg)
printf (" running");
if (dominfo.hvm)
printf (" hvm");
+ if (dominfo.debugged)
+ printf (" debug");
printf ("\n");
#ifdef HAVE_DEBUG_OP
@@ -1292,7 +1324,7 @@ cmd_disp (unsigned char *arg)
}
static int
-cmd_bev (unsigned char *arg)
+cmd_bev (char *arg)
{
xen_ia64_debug_op_t debug_op;
int i;
@@ -1345,15 +1377,15 @@ cmd_bev (unsigned char *arg)
}
static int
-cmd_set (unsigned char *line)
-{
- unsigned char *reg;
+cmd_set (char *line)
+{
+ char *reg;
unsigned long *addr;
unsigned long val;
reg = parse_arg (&line);
- addr = get_reg_addr ((char *)reg);
+ addr = get_reg_addr (reg);
if (addr == NULL) {
printf ("unknown register %s\n", reg);
return -1;
@@ -1370,7 +1402,7 @@ const struct command_desc commands[];
const struct command_desc commands[];
static int
-cmd_help (unsigned char *line)
+cmd_help (char *line)
{
int i;
@@ -1398,14 +1430,14 @@ const struct command_desc commands[] = {
{ "bev", "break on event", cmd_bev},
{ "set", "set reg val", cmd_set},
{ "help", "disp help", cmd_help },
- { NULL, NULL }
+ { NULL, NULL, NULL }
};
-int do_command (int vcpu, unsigned char *line)
-{
- unsigned char *cmd;
- unsigned char *args;
+int do_command (int vcpu, char *line)
+{
+ char *cmd;
+ char *args;
int i;
const struct command_desc *desc;
int flag_ambiguous;
@@ -1421,7 +1453,7 @@ int do_command (int vcpu, unsigned char
for (i = 0; commands[i].name; i++) {
const char *n = commands[i].name;
- unsigned char *c = cmd;
+ char *c = cmd;
while (*n == *c && *n)
n++, c++;
@@ -1494,12 +1526,12 @@ void xenitp (int vcpu)
perror ("sigaction");
while (1) {
- unsigned char buf[128];
+ char buf[128];
int len;
printf ("XenITP> ");
- if (fgets ((char *)buf, sizeof (buf), stdin) == NULL)
+ if (fgets (buf, sizeof (buf), stdin) == NULL)
break;
len = strlen ((char *)buf);
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