IA64 Linux: Define regset structures.
This commit is contained in:
Andreas Arnez
Ulrich Weigand
parent
08f9f542cb
commit
070bdf0b1a
2 changed files with 101 additions and 0 deletions
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@ -1,3 +1,14 @@
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2014-08-07 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* ia64-linux-tdep.c: Include "regset.h".
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(ia64_linux_gregmap, ia64_linux_fpregmap): New register maps.
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(IA64_LINUX_GREGS_SIZE, IA64_LINUX_FPREGS_SIZE): New macros.
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(ia64_linux_supply_fpregset): New function.
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(ia64_linux_gregset, ia64_linux_fpregset): New regsets.
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(ia64_linux_regset_from_core_section): New function.
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(ia64_linux_init_abi): Set regset_from_core_section gdbarch
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method.
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2014-08-07 Andreas Arnez <arnez@linux.vnet.ibm.com>
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2014-08-07 Andreas Arnez <arnez@linux.vnet.ibm.com>
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* m68klinux-tdep.c: Include "regset.h".
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* m68klinux-tdep.c: Include "regset.h".
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@ -26,6 +26,7 @@
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#include "solib-svr4.h"
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#include "solib-svr4.h"
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#include "symtab.h"
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#include "symtab.h"
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#include "linux-tdep.h"
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#include "linux-tdep.h"
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#include "regset.h"
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#include <ctype.h>
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#include <ctype.h>
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@ -131,6 +132,91 @@ ia64_linux_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
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|| isdigit (*s)); /* Literal number. */
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|| isdigit (*s)); /* Literal number. */
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}
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}
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/* Core file support. */
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static const struct regcache_map_entry ia64_linux_gregmap[] =
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{
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{ 32, IA64_GR0_REGNUM, 8 }, /* r0 ... r31 */
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{ 1, REGCACHE_MAP_SKIP, 8 }, /* FIXME: NAT collection bits? */
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{ 1, IA64_PR_REGNUM, 8 },
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{ 8, IA64_BR0_REGNUM, 8 }, /* b0 ... b7 */
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{ 1, IA64_IP_REGNUM, 8 },
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{ 1, IA64_CFM_REGNUM, 8 },
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{ 1, IA64_PSR_REGNUM, 8 },
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{ 1, IA64_RSC_REGNUM, 8 },
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{ 1, IA64_BSP_REGNUM, 8 },
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{ 1, IA64_BSPSTORE_REGNUM, 8 },
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{ 1, IA64_RNAT_REGNUM, 8 },
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{ 1, IA64_CCV_REGNUM, 8 },
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{ 1, IA64_UNAT_REGNUM, 8 },
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{ 1, IA64_FPSR_REGNUM, 8 },
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{ 1, IA64_PFS_REGNUM, 8 },
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{ 1, IA64_LC_REGNUM, 8 },
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{ 1, IA64_EC_REGNUM, 8 },
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{ 0 }
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};
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/* Size of 'gregset_t', as defined by the Linux kernel. Note that
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this is more than actually mapped in the regmap above. */
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#define IA64_LINUX_GREGS_SIZE (128 * 8)
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static const struct regcache_map_entry ia64_linux_fpregmap[] =
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{
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{ 128, IA64_FR0_REGNUM, 16 }, /* f0 ... f127 */
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{ 0 }
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};
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#define IA64_LINUX_FPREGS_SIZE (128 * 16)
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static void
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ia64_linux_supply_fpregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *regs, size_t len)
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{
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const gdb_byte f_zero[16] = { 0 };
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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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regcache_supply_regset (regset, regcache, regnum, regs, len);
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/* Kernel generated cores have fr1==0 instead of 1.0. Older GDBs
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did the same. So ignore whatever might be recorded in fpregset_t
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for fr0/fr1 and always supply their expected values. */
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if (regnum == -1 || regnum == IA64_FR0_REGNUM)
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regcache_raw_supply (regcache, IA64_FR0_REGNUM, f_zero);
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if (regnum == -1 || regnum == IA64_FR1_REGNUM)
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regcache_raw_supply (regcache, IA64_FR1_REGNUM, f_one);
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}
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static const struct regset ia64_linux_gregset =
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{
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ia64_linux_gregmap,
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regcache_supply_regset, regcache_collect_regset
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};
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static const struct regset ia64_linux_fpregset =
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{
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ia64_linux_fpregmap,
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ia64_linux_supply_fpregset, regcache_collect_regset
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};
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static const struct regset *
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ia64_linux_regset_from_core_section (struct gdbarch *gdbarch,
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const char *sect_name,
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size_t sect_size)
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{
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if (strcmp (sect_name, ".reg") == 0
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&& sect_size >= IA64_LINUX_GREGS_SIZE)
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return &ia64_linux_gregset;
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if (strcmp (sect_name, ".reg2") == 0
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&& sect_size >= IA64_LINUX_FPREGS_SIZE)
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return &ia64_linux_fpregset;
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return NULL;
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}
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static void
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static void
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ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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{
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@ -161,6 +247,10 @@ ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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set_gdbarch_fetch_tls_load_module_address (gdbarch,
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set_gdbarch_fetch_tls_load_module_address (gdbarch,
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svr4_fetch_objfile_link_map);
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svr4_fetch_objfile_link_map);
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/* Core file support. */
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set_gdbarch_regset_from_core_section (gdbarch,
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ia64_linux_regset_from_core_section);
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/* SystemTap related. */
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/* SystemTap related. */
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set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes);
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set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes);
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set_gdbarch_stap_register_indirection_prefixes (gdbarch,
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set_gdbarch_stap_register_indirection_prefixes (gdbarch,
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