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-rw-r--r--gdb/gdbserver/ChangeLog27
-rw-r--r--gdb/gdbserver/linux-arm-low.c1
-rw-r--r--gdb/gdbserver/linux-bfin-low.c1
-rw-r--r--gdb/gdbserver/linux-cris-low.c1
-rw-r--r--gdb/gdbserver/linux-crisv32-low.c1
-rw-r--r--gdb/gdbserver/linux-ia64-low.c45
-rw-r--r--gdb/gdbserver/linux-low.c10
-rw-r--r--gdb/gdbserver/linux-low.h8
-rw-r--r--gdb/gdbserver/linux-m32r-low.c1
-rw-r--r--gdb/gdbserver/linux-m68k-low.c1
-rw-r--r--gdb/gdbserver/linux-mips-low.c1
-rw-r--r--gdb/gdbserver/linux-ppc-low.c1
-rw-r--r--gdb/gdbserver/linux-s390-low.c1
-rw-r--r--gdb/gdbserver/linux-sh-low.c1
-rw-r--r--gdb/gdbserver/linux-sparc-low.c1
-rw-r--r--gdb/gdbserver/linux-tic6x-low.c1
-rw-r--r--gdb/gdbserver/linux-x86-low.c1
-rw-r--r--gdb/gdbserver/linux-xtensa-low.c1
18 files changed, 102 insertions, 2 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index c99505f..8627aa9 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,30 @@
+2012-03-28 Pedro Alves <palves@redhat.com>
+
+ * linux-ia64-low.c (ia64_regmap): Map IA64_EC_REGNUM to PT_AR_EC.
+ (IA64_GR0_REGNUM, IA64_FR0_REGNUM)
+ (IA64_FR1_REGNUM): New defines.
+ (ia64_fetch_register): New.
+ (the_low_target): Install it.
+ * linux-low.h (struct linux_target_ops) <fetch_register>: New
+ field.
+ * linux-low.c (linux_fetch_registers): Try the
+ the_low_target.fetch_register hook first.
+
+ * linux-arm-low.c (the_low_target): Adjust.
+ * linux-bfin-low.c (the_low_target): Adjust.
+ * linux-cris-low.c (the_low_target): Adjust.
+ * linux-crisv32-low.c (the_low_target): Adjust.
+ * linux-m32r-low.c (the_low_target): Adjust.
+ * linux-m68k-low.c (the_low_target): Adjust.
+ * linux-mips-low.c (the_low_target): Adjust.
+ * linux-ppc-low.c (the_low_target): Adjust.
+ * linux-s390-low.c (the_low_target): Adjust.
+ * linux-sh-low.c (the_low_target): Adjust.
+ * linux-sparc-low.c (the_low_target): Adjust.
+ * linux-tic6x-low.c (the_low_target): Adjust.
+ * linux-x86-low.c (the_low_target): Adjust.
+ * linux-xtensa-low.c (the_low_target): Adjust.
+
2012-03-26 Pedro Alves <palves@redhat.com>
* server.c (handle_qxfer_libraries): Don't bail early if
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 01208ef..bf1792b 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -837,6 +837,7 @@ struct linux_target_ops the_low_target = {
NULL,
arm_cannot_fetch_register,
arm_cannot_store_register,
+ NULL, /* fetch_register */
arm_get_pc,
arm_set_pc,
diff --git a/gdb/gdbserver/linux-bfin-low.c b/gdb/gdbserver/linux-bfin-low.c
index b6fe58a..d5b0361 100644
--- a/gdb/gdbserver/linux-bfin-low.c
+++ b/gdb/gdbserver/linux-bfin-low.c
@@ -97,6 +97,7 @@ struct linux_target_ops the_low_target = {
NULL,
bfin_cannot_fetch_register,
bfin_cannot_store_register,
+ NULL, /* fetch_register */
bfin_get_pc,
bfin_set_pc,
bfin_breakpoint,
diff --git a/gdb/gdbserver/linux-cris-low.c b/gdb/gdbserver/linux-cris-low.c
index a399789..0c92e62 100644
--- a/gdb/gdbserver/linux-cris-low.c
+++ b/gdb/gdbserver/linux-cris-low.c
@@ -115,6 +115,7 @@ struct linux_target_ops the_low_target = {
NULL,
cris_cannot_fetch_register,
cris_cannot_store_register,
+ NULL, /* fetch_register */
cris_get_pc,
cris_set_pc,
(const unsigned char *) &cris_breakpoint,
diff --git a/gdb/gdbserver/linux-crisv32-low.c b/gdb/gdbserver/linux-crisv32-low.c
index e33372d..1cc4cd1 100644
--- a/gdb/gdbserver/linux-crisv32-low.c
+++ b/gdb/gdbserver/linux-crisv32-low.c
@@ -377,6 +377,7 @@ struct linux_target_ops the_low_target = {
NULL,
NULL,
NULL,
+ NULL, /* fetch_register */
cris_get_pc,
cris_set_pc,
(const unsigned char *) &cris_breakpoint,
diff --git a/gdb/gdbserver/linux-ia64-low.c b/gdb/gdbserver/linux-ia64-low.c
index 8753190..c8fa603 100644
--- a/gdb/gdbserver/linux-ia64-low.c
+++ b/gdb/gdbserver/linux-ia64-low.c
@@ -256,7 +256,7 @@ static int ia64_regmap[] =
-1, -1, -1, -1, -1, -1, -1, -1, -1,
PT_AR_PFS,
PT_AR_LC,
- -1, /* Not available: EC, the Epilog Count register */
+ PT_AR_EC,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
@@ -278,6 +278,48 @@ ia64_cannot_fetch_register (int regno)
return 0;
}
+/* GDB register numbers. */
+#define IA64_GR0_REGNUM 0
+#define IA64_FR0_REGNUM 128
+#define IA64_FR1_REGNUM 129
+
+static int
+ia64_fetch_register (struct regcache *regcache, int regnum)
+{
+ /* r0 cannot be fetched but is always zero. */
+ if (regnum == IA64_GR0_REGNUM)
+ {
+ const gdb_byte zero[8] = { 0 };
+
+ gdb_assert (sizeof (zero) == register_size (regnum));
+ supply_register (regcache, regnum, zero);
+ return 1;
+ }
+
+ /* fr0 cannot be fetched but is always zero. */
+ if (regnum == IA64_FR0_REGNUM)
+ {
+ const gdb_byte f_zero[16] = { 0 };
+
+ gdb_assert (sizeof (f_zero) == register_size (regnum));
+ supply_register (regcache, regnum, f_zero);
+ return 1;
+ }
+
+ /* fr1 cannot be fetched but is always one (1.0). */
+ if (regnum == IA64_FR1_REGNUM)
+ {
+ const gdb_byte f_one[16] =
+ { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0 };
+
+ gdb_assert (sizeof (f_one) == register_size (regnum));
+ supply_register (regcache, regnum, f_one);
+ return 1;
+ }
+
+ return 0;
+}
+
struct linux_target_ops the_low_target = {
init_registers_ia64,
ia64_num_regs,
@@ -285,4 +327,5 @@ struct linux_target_ops the_low_target = {
NULL,
ia64_cannot_fetch_register,
ia64_cannot_store_register,
+ ia64_fetch_register,
};
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 8becf78..aea8d36 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -4271,11 +4271,19 @@ linux_fetch_registers (struct regcache *regcache, int regno)
if (regno == -1)
{
+ if (the_low_target.fetch_register != NULL)
+ for (regno = 0; regno < the_low_target.num_regs; regno++)
+ (*the_low_target.fetch_register) (regcache, regno);
+
all = regsets_fetch_inferior_registers (regcache);
- usr_fetch_inferior_registers (regcache, regno, all);
+ usr_fetch_inferior_registers (regcache, -1, all);
}
else
{
+ if (the_low_target.fetch_register != NULL
+ && (*the_low_target.fetch_register) (regcache, regno))
+ return;
+
use_regsets = linux_register_in_regsets (regno);
if (use_regsets)
all = regsets_fetch_inferior_registers (regcache);
diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 3aeae70..07eda12 100644
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -81,6 +81,14 @@ struct linux_target_ops
store the register, and 2 if failure to store the register
is acceptable. */
int (*cannot_store_register) (int);
+
+ /* Hook to fetch a register in some non-standard way. Used for
+ example by backends that have read-only registers with hardcoded
+ values (e.g., IA64's gr0/fr0/fr1). Returns true if register
+ REGNO was supplied, false if not, and we should fallback to the
+ standard ptrace methods. */
+ int (*fetch_register) (struct regcache *regcache, int regno);
+
CORE_ADDR (*get_pc) (struct regcache *regcache);
void (*set_pc) (struct regcache *regcache, CORE_ADDR newpc);
const unsigned char *breakpoint;
diff --git a/gdb/gdbserver/linux-m32r-low.c b/gdb/gdbserver/linux-m32r-low.c
index fd70cf2..29bb3f7 100644
--- a/gdb/gdbserver/linux-m32r-low.c
+++ b/gdb/gdbserver/linux-m32r-low.c
@@ -94,6 +94,7 @@ struct linux_target_ops the_low_target = {
NULL,
m32r_cannot_fetch_register,
m32r_cannot_store_register,
+ NULL, /* fetch_register */
m32r_get_pc,
m32r_set_pc,
(const unsigned char *) &m32r_breakpoint,
diff --git a/gdb/gdbserver/linux-m68k-low.c b/gdb/gdbserver/linux-m68k-low.c
index a640e4c..6769dac 100644
--- a/gdb/gdbserver/linux-m68k-low.c
+++ b/gdb/gdbserver/linux-m68k-low.c
@@ -182,6 +182,7 @@ struct linux_target_ops the_low_target = {
NULL,
m68k_cannot_fetch_register,
m68k_cannot_store_register,
+ NULL, /* fetch_register */
m68k_get_pc,
m68k_set_pc,
m68k_breakpoint,
diff --git a/gdb/gdbserver/linux-mips-low.c b/gdb/gdbserver/linux-mips-low.c
index 1f58442..8e37298 100644
--- a/gdb/gdbserver/linux-mips-low.c
+++ b/gdb/gdbserver/linux-mips-low.c
@@ -430,6 +430,7 @@ struct linux_target_ops the_low_target = {
NULL,
mips_cannot_fetch_register,
mips_cannot_store_register,
+ NULL, /* fetch_register */
mips_get_pc,
mips_set_pc,
(const unsigned char *) &mips_breakpoint,
diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c
index 518a59e..ed254fa 100644
--- a/gdb/gdbserver/linux-ppc-low.c
+++ b/gdb/gdbserver/linux-ppc-low.c
@@ -613,6 +613,7 @@ struct linux_target_ops the_low_target = {
NULL,
ppc_cannot_fetch_register,
ppc_cannot_store_register,
+ NULL, /* fetch_register */
ppc_get_pc,
ppc_set_pc,
(const unsigned char *) &ppc_breakpoint,
diff --git a/gdb/gdbserver/linux-s390-low.c b/gdb/gdbserver/linux-s390-low.c
index 8a32795..ea46206 100644
--- a/gdb/gdbserver/linux-s390-low.c
+++ b/gdb/gdbserver/linux-s390-low.c
@@ -464,6 +464,7 @@ struct linux_target_ops the_low_target = {
NULL,
s390_cannot_fetch_register,
s390_cannot_store_register,
+ NULL, /* fetch_register */
s390_get_pc,
s390_set_pc,
s390_breakpoint,
diff --git a/gdb/gdbserver/linux-sh-low.c b/gdb/gdbserver/linux-sh-low.c
index e2537d6..fbd67c6 100644
--- a/gdb/gdbserver/linux-sh-low.c
+++ b/gdb/gdbserver/linux-sh-low.c
@@ -115,6 +115,7 @@ struct linux_target_ops the_low_target = {
NULL,
sh_cannot_fetch_register,
sh_cannot_store_register,
+ NULL, /* fetch_register */
sh_get_pc,
sh_set_pc,
(const unsigned char *) &sh_breakpoint,
diff --git a/gdb/gdbserver/linux-sparc-low.c b/gdb/gdbserver/linux-sparc-low.c
index dc9c0cc..0460587 100644
--- a/gdb/gdbserver/linux-sparc-low.c
+++ b/gdb/gdbserver/linux-sparc-low.c
@@ -284,6 +284,7 @@ struct linux_target_ops the_low_target = {
NULL,
sparc_cannot_fetch_register,
sparc_cannot_store_register,
+ NULL, /* fetch_register */
sparc_get_pc,
/* No sparc_set_pc is needed. */
NULL,
diff --git a/gdb/gdbserver/linux-tic6x-low.c b/gdb/gdbserver/linux-tic6x-low.c
index db7c5a4..69d538b 100644
--- a/gdb/gdbserver/linux-tic6x-low.c
+++ b/gdb/gdbserver/linux-tic6x-low.c
@@ -324,6 +324,7 @@ struct linux_target_ops the_low_target = {
NULL,
tic6x_cannot_fetch_register,
tic6x_cannot_store_register,
+ NULL, /* fetch_register */
tic6x_get_pc,
tic6x_set_pc,
(const unsigned char *) &tic6x_breakpoint,
diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
index b466b5d..7feb721 100644
--- a/gdb/gdbserver/linux-x86-low.c
+++ b/gdb/gdbserver/linux-x86-low.c
@@ -2969,6 +2969,7 @@ struct linux_target_ops the_low_target =
NULL,
NULL,
NULL,
+ NULL, /* fetch_register */
x86_get_pc,
x86_set_pc,
x86_breakpoint,
diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index bf7f064..34370f9 100644
--- a/gdb/gdbserver/linux-xtensa-low.c
+++ b/gdb/gdbserver/linux-xtensa-low.c
@@ -183,6 +183,7 @@ struct linux_target_ops the_low_target = {
NULL,
0,
0,
+ NULL, /* fetch_register */
xtensa_get_pc,
xtensa_set_pc,
xtensa_breakpoint,
generated by cgit v1.1 at 2024-12-11 22:08:20 +0000