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.
This commit is contained in:
Pedro Alves
parent
ca9b8b9ce8
commit
c14dfd3206
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@ -1,3 +1,30 @@
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2012-03-28 Pedro Alves <palves@redhat.com>
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* linux-ia64-low.c (ia64_regmap): Map IA64_EC_REGNUM to PT_AR_EC.
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(IA64_GR0_REGNUM, IA64_FR0_REGNUM)
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(IA64_FR1_REGNUM): New defines.
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(ia64_fetch_register): New.
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(the_low_target): Install it.
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* linux-low.h (struct linux_target_ops) <fetch_register>: New
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field.
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* linux-low.c (linux_fetch_registers): Try the
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the_low_target.fetch_register hook first.
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* linux-arm-low.c (the_low_target): Adjust.
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* linux-bfin-low.c (the_low_target): Adjust.
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* linux-cris-low.c (the_low_target): Adjust.
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* linux-crisv32-low.c (the_low_target): Adjust.
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* linux-m32r-low.c (the_low_target): Adjust.
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* linux-m68k-low.c (the_low_target): Adjust.
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* linux-mips-low.c (the_low_target): Adjust.
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* linux-ppc-low.c (the_low_target): Adjust.
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* linux-s390-low.c (the_low_target): Adjust.
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* linux-sh-low.c (the_low_target): Adjust.
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* linux-sparc-low.c (the_low_target): Adjust.
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* linux-tic6x-low.c (the_low_target): Adjust.
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* linux-x86-low.c (the_low_target): Adjust.
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* linux-xtensa-low.c (the_low_target): Adjust.
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2012-03-26 Pedro Alves <palves@redhat.com>
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* server.c (handle_qxfer_libraries): Don't bail early if
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@ -837,6 +837,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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arm_cannot_fetch_register,
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arm_cannot_store_register,
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NULL, /* fetch_register */
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arm_get_pc,
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arm_set_pc,
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@ -97,6 +97,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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bfin_cannot_fetch_register,
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bfin_cannot_store_register,
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NULL, /* fetch_register */
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bfin_get_pc,
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bfin_set_pc,
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bfin_breakpoint,
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@ -115,6 +115,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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cris_cannot_fetch_register,
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cris_cannot_store_register,
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NULL, /* fetch_register */
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cris_get_pc,
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cris_set_pc,
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(const unsigned char *) &cris_breakpoint,
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@ -377,6 +377,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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NULL,
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NULL,
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NULL, /* fetch_register */
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cris_get_pc,
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cris_set_pc,
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(const unsigned char *) &cris_breakpoint,
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@ -256,7 +256,7 @@ static int ia64_regmap[] =
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-1, -1, -1, -1, -1, -1, -1, -1, -1,
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PT_AR_PFS,
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PT_AR_LC,
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-1, /* Not available: EC, the Epilog Count register */
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PT_AR_EC,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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@ -278,6 +278,48 @@ ia64_cannot_fetch_register (int regno)
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return 0;
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}
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/* GDB register numbers. */
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#define IA64_GR0_REGNUM 0
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#define IA64_FR0_REGNUM 128
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#define IA64_FR1_REGNUM 129
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static int
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ia64_fetch_register (struct regcache *regcache, int regnum)
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{
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/* r0 cannot be fetched but is always zero. */
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if (regnum == IA64_GR0_REGNUM)
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{
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const gdb_byte zero[8] = { 0 };
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gdb_assert (sizeof (zero) == register_size (regnum));
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supply_register (regcache, regnum, zero);
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return 1;
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}
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/* fr0 cannot be fetched but is always zero. */
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if (regnum == IA64_FR0_REGNUM)
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{
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const gdb_byte f_zero[16] = { 0 };
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gdb_assert (sizeof (f_zero) == register_size (regnum));
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supply_register (regcache, regnum, f_zero);
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return 1;
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}
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/* fr1 cannot be fetched but is always one (1.0). */
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if (regnum == IA64_FR1_REGNUM)
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{
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const gdb_byte f_one[16] =
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{ 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0 };
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gdb_assert (sizeof (f_one) == register_size (regnum));
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supply_register (regcache, regnum, f_one);
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return 1;
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}
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return 0;
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}
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struct linux_target_ops the_low_target = {
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init_registers_ia64,
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ia64_num_regs,
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@ -285,4 +327,5 @@ struct linux_target_ops the_low_target = {
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NULL,
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ia64_cannot_fetch_register,
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ia64_cannot_store_register,
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ia64_fetch_register,
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};
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@ -4271,11 +4271,19 @@ linux_fetch_registers (struct regcache *regcache, int regno)
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if (regno == -1)
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{
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if (the_low_target.fetch_register != NULL)
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for (regno = 0; regno < the_low_target.num_regs; regno++)
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(*the_low_target.fetch_register) (regcache, regno);
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all = regsets_fetch_inferior_registers (regcache);
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usr_fetch_inferior_registers (regcache, regno, all);
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usr_fetch_inferior_registers (regcache, -1, all);
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}
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else
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{
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if (the_low_target.fetch_register != NULL
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&& (*the_low_target.fetch_register) (regcache, regno))
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return;
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use_regsets = linux_register_in_regsets (regno);
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if (use_regsets)
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all = regsets_fetch_inferior_registers (regcache);
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@ -81,6 +81,14 @@ struct linux_target_ops
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store the register, and 2 if failure to store the register
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is acceptable. */
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int (*cannot_store_register) (int);
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/* Hook to fetch a register in some non-standard way. Used for
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example by backends that have read-only registers with hardcoded
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values (e.g., IA64's gr0/fr0/fr1). Returns true if register
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REGNO was supplied, false if not, and we should fallback to the
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standard ptrace methods. */
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int (*fetch_register) (struct regcache *regcache, int regno);
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CORE_ADDR (*get_pc) (struct regcache *regcache);
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void (*set_pc) (struct regcache *regcache, CORE_ADDR newpc);
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const unsigned char *breakpoint;
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@ -94,6 +94,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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m32r_cannot_fetch_register,
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m32r_cannot_store_register,
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NULL, /* fetch_register */
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m32r_get_pc,
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m32r_set_pc,
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(const unsigned char *) &m32r_breakpoint,
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@ -182,6 +182,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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m68k_cannot_fetch_register,
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m68k_cannot_store_register,
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NULL, /* fetch_register */
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m68k_get_pc,
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m68k_set_pc,
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m68k_breakpoint,
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@ -430,6 +430,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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mips_cannot_fetch_register,
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mips_cannot_store_register,
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NULL, /* fetch_register */
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mips_get_pc,
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mips_set_pc,
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(const unsigned char *) &mips_breakpoint,
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@ -613,6 +613,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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ppc_cannot_fetch_register,
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ppc_cannot_store_register,
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NULL, /* fetch_register */
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ppc_get_pc,
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ppc_set_pc,
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(const unsigned char *) &ppc_breakpoint,
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@ -464,6 +464,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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s390_cannot_fetch_register,
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s390_cannot_store_register,
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NULL, /* fetch_register */
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s390_get_pc,
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s390_set_pc,
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s390_breakpoint,
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@ -115,6 +115,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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sh_cannot_fetch_register,
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sh_cannot_store_register,
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NULL, /* fetch_register */
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sh_get_pc,
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sh_set_pc,
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(const unsigned char *) &sh_breakpoint,
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@ -284,6 +284,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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sparc_cannot_fetch_register,
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sparc_cannot_store_register,
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NULL, /* fetch_register */
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sparc_get_pc,
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/* No sparc_set_pc is needed. */
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NULL,
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@ -324,6 +324,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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tic6x_cannot_fetch_register,
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tic6x_cannot_store_register,
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NULL, /* fetch_register */
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tic6x_get_pc,
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tic6x_set_pc,
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(const unsigned char *) &tic6x_breakpoint,
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@ -2969,6 +2969,7 @@ struct linux_target_ops the_low_target =
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NULL,
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NULL,
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NULL,
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NULL, /* fetch_register */
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x86_get_pc,
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x86_set_pc,
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x86_breakpoint,
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@ -183,6 +183,7 @@ struct linux_target_ops the_low_target = {
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NULL,
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0,
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0,
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NULL, /* fetch_register */
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xtensa_get_pc,
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xtensa_set_pc,
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xtensa_breakpoint,
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