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* ppc-linux-tdep.c (ELF_NGREG, ELF_NFPREG, ELF_NVRREG)

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(ELF_FPREGSET_SIZE, ELF_GREGSET_SIZE): New enums.
        (fetch_core_registers, ppc_linux_supply_gregset)
        (ppc_linux_supply_fpregset): New functions.
        (ppc_linux_regset_core_fns): New.
        (_initialize_ppc_linux_tdep): Call add_core_fns.
        * ppc-tdep.h: Add prototypes for ppc_linux_supply_fpregset
        and ppc_linux_supply_gregset.
        * ppc-linux-nat.c (supply_gregset): Call ppc_linux_supply_gregset.
        (supply_fpregset): Call ppc_linux_supply_fpregset.
        * config/powerpc/linux.mh (NATDEPFILES): Remove core-regset.o and
        corelow.o.
        * config/powerpc/linux.mt (TDEPFILES): Add corelow.o.
This commit is contained in:
Daniel Jacobowitz 2002-07-30 19:03:49 +00:00
parent 3e000b1880
commit 2fda49774f
6 changed files with 106 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

83
gdb/ppc-linux-tdep.c
View file

@ -600,6 +600,88 @@ ppc_linux_svr4_fetch_link_map_offsets (void)
return lmp;
}
enum {
ELF_NGREG = 48,
ELF_NFPREG = 33,
ELF_NVRREG = 33
};
enum {
ELF_GREGSET_SIZE = (ELF_NGREG * 4),
ELF_FPREGSET_SIZE = (ELF_NFPREG * 8)
};
void
ppc_linux_supply_gregset (char *buf)
{
int regi;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
for (regi = 0; regi < 32; regi++)
supply_register (regi, buf + 4 * regi);
supply_register (PC_REGNUM, buf + 4 * PPC_LINUX_PT_NIP);
supply_register (tdep->ppc_lr_regnum, buf + 4 * PPC_LINUX_PT_LNK);
supply_register (tdep->ppc_cr_regnum, buf + 4 * PPC_LINUX_PT_CCR);
supply_register (tdep->ppc_xer_regnum, buf + 4 * PPC_LINUX_PT_XER);
supply_register (tdep->ppc_ctr_regnum, buf + 4 * PPC_LINUX_PT_CTR);
if (tdep->ppc_mq_regnum != -1)
supply_register (tdep->ppc_mq_regnum, buf + 4 * PPC_LINUX_PT_MQ);
supply_register (tdep->ppc_ps_regnum, buf + 4 * PPC_LINUX_PT_MSR);
}
void
ppc_linux_supply_fpregset (char *buf)
{
int regi;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
for (regi = 0; regi < 32; regi++)
supply_register (FP0_REGNUM + regi, buf + 8 * regi);
/* The FPSCR is stored in the low order word of the last doubleword in the
fpregset. */
supply_register (tdep->ppc_fpscr_regnum, buf + 8 * 32 + 4);
}
/*
Use a local version of this function to get the correct types for regsets.
*/
static void
fetch_core_registers (char *core_reg_sect,
unsigned core_reg_size,
int which,
CORE_ADDR reg_addr)
{
if (which == 0)
{
if (core_reg_size == ELF_GREGSET_SIZE)
ppc_linux_supply_gregset (core_reg_sect);
else
warning ("wrong size gregset struct in core file");
}
else if (which == 2)
{
if (core_reg_size == ELF_FPREGSET_SIZE)
ppc_linux_supply_fpregset (core_reg_sect);
else
warning ("wrong size fpregset struct in core file");
}
}
/* Register that we are able to handle ELF file formats using standard
procfs "regset" structures. */
static struct core_fns ppc_linux_regset_core_fns =
{
bfd_target_elf_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
static void
ppc_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@ -639,4 +721,5 @@ _initialize_ppc_linux_tdep (void)
{
gdbarch_register_osabi (bfd_arch_powerpc, GDB_OSABI_LINUX,
ppc_linux_init_abi);
add_core_fns (&ppc_linux_regset_core_fns);
}