/* PPC GNU/Linux native support.
- Copyright (C) 1988-2018 Free Software Foundation, Inc.
+ Copyright (C) 1988-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbthread.h"
#include "gdbcore.h"
#include "regcache.h"
+#include "regset.h"
#include "target.h"
#include "linux-nat.h"
#include <sys/types.h>
#include <signal.h>
#include <sys/user.h>
#include <sys/ioctl.h>
+#include <sys/uio.h>
#include "gdb_wait.h"
#include <fcntl.h>
#include <sys/procfs.h>
#include "nat/gdb_ptrace.h"
+#include "nat/linux-ptrace.h"
#include "inf-ptrace.h"
/* Prototypes for supply_gregset etc. */
#include "elf/common.h"
#include "auxv.h"
+#include "arch/ppc-linux-common.h"
+#include "arch/ppc-linux-tdesc.h"
#include "nat/ppc-linux.h"
/* Similarly for the hardware watchpoint support. These requests are used
Even though this vrsave register is not included in the regset
typedef, it is handled by the ptrace requests.
- Note that GNU/Linux doesn't support little endian PPC hardware,
- therefore the offset at which the real value of the VSCR register
- is located will be always 12 bytes.
-
The layout is like this (where x is the actual value of the vscr reg): */
/* *INDENT-OFF* */
/*
+Big-Endian:
|.|.|.|.|.....|.|.|.|.||.|.|.|x||.|
<-------> <-------><-------><->
VR0 VR31 VSCR VRSAVE
+Little-Endian:
+ |.|.|.|.|.....|.|.|.|.||X|.|.|.||.|
+ <-------> <-------><-------><->
+ VR0 VR31 VSCR VRSAVE
*/
/* *INDENT-ON* */
-#define SIZEOF_VRREGS 33*16+4
-
-typedef char gdb_vrregset_t[SIZEOF_VRREGS];
+typedef char gdb_vrregset_t[PPC_LINUX_SIZEOF_VRREGSET];
/* This is the layout of the POWER7 VSX registers and the way they overlap
with the existing FPR and VMX registers.
the FP registers (doubleword 0) and hence extend them with additional
64 bits (doubleword 1). The other 32 regs overlap with the VMX
registers. */
-#define SIZEOF_VSXREGS 32*8
-
-typedef char gdb_vsxregset_t[SIZEOF_VSXREGS];
+typedef char gdb_vsxregset_t[PPC_LINUX_SIZEOF_VSXREGSET];
/* On PPC processors that support the Signal Processing Extension
(SPE) APU, the general-purpose registers are 64 bits long.
int remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, enum target_hw_bp_type)
override;
- int stopped_by_watchpoint () override;
+ bool stopped_by_watchpoint () override;
- int stopped_data_address (CORE_ADDR *) override;
+ bool stopped_data_address (CORE_ADDR *) override;
- int watchpoint_addr_within_range (CORE_ADDR, CORE_ADDR, int) override;
+ bool watchpoint_addr_within_range (CORE_ADDR, CORE_ADDR, int) override;
- int can_accel_watchpoint_condition (CORE_ADDR, int, int, struct expression *)
+ bool can_accel_watchpoint_condition (CORE_ADDR, int, int, struct expression *)
override;
int masked_watch_num_registers (CORE_ADDR, CORE_ADDR) override;
int auxv_parse (gdb_byte **readptr,
gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
override;
+
+ /* Override linux_nat_target low methods. */
+ void low_new_thread (struct lwp_info *lp) override;
};
static ppc_linux_nat_target the_ppc_linux_nat_target;
registers set mechanism, as opposed to the interface for all the
other registers, that stores/fetches each register individually. */
static void
-fetch_vsx_register (struct regcache *regcache, int tid, int regno)
+fetch_vsx_registers (struct regcache *regcache, int tid, int regno)
{
int ret;
gdb_vsxregset_t regs;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vsxregsize = register_size (gdbarch, tdep->ppc_vsr0_upper_regnum);
+ const struct regset *vsxregset = ppc_linux_vsxregset ();
ret = ptrace (PTRACE_GETVSXREGS, tid, 0, ®s);
if (ret < 0)
have_ptrace_getsetvsxregs = 0;
return;
}
- perror_with_name (_("Unable to fetch VSX register"));
+ perror_with_name (_("Unable to fetch VSX registers"));
}
- regcache_raw_supply (regcache, regno,
- regs + (regno - tdep->ppc_vsr0_upper_regnum)
- * vsxregsize);
+ vsxregset->supply_regset (vsxregset, regcache, regno, ®s,
+ PPC_LINUX_SIZEOF_VSXREGSET);
}
/* The Linux kernel ptrace interface for AltiVec registers uses the
registers set mechanism, as opposed to the interface for all the
other registers, that stores/fetches each register individually. */
static void
-fetch_altivec_register (struct regcache *regcache, int tid, int regno)
+fetch_altivec_registers (struct regcache *regcache, int tid,
+ int regno)
{
int ret;
- int offset = 0;
gdb_vrregset_t regs;
struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vrregsize = register_size (gdbarch, tdep->ppc_vr0_regnum);
+ const struct regset *vrregset = ppc_linux_vrregset (gdbarch);
ret = ptrace (PTRACE_GETVRREGS, tid, 0, ®s);
if (ret < 0)
have_ptrace_getvrregs = 0;
return;
}
- perror_with_name (_("Unable to fetch AltiVec register"));
+ perror_with_name (_("Unable to fetch AltiVec registers"));
}
-
- /* VSCR is fetched as a 16 bytes quantity, but it is really 4 bytes
- long on the hardware. We deal only with the lower 4 bytes of the
- vector. VRSAVE is at the end of the array in a 4 bytes slot, so
- there is no need to define an offset for it. */
- if (regno == (tdep->ppc_vrsave_regnum - 1))
- offset = vrregsize - register_size (gdbarch, tdep->ppc_vrsave_regnum);
-
- regcache_raw_supply (regcache, regno,
- regs + (regno
- - tdep->ppc_vr0_regnum) * vrregsize + offset);
+
+ vrregset->supply_regset (vrregset, regcache, regno, ®s,
+ PPC_LINUX_SIZEOF_VRREGSET);
}
/* Fetch the top 32 bits of TID's general-purpose registers and the
int i;
for (i = 0; i < ppc_num_gprs; i++)
- regcache_raw_supply (regcache, tdep->ppc_ev0_upper_regnum + i,
- &evrregs.evr[i]);
+ regcache->raw_supply (tdep->ppc_ev0_upper_regnum + i, &evrregs.evr[i]);
}
else if (tdep->ppc_ev0_upper_regnum <= regno
&& regno < tdep->ppc_ev0_upper_regnum + ppc_num_gprs)
- regcache_raw_supply (regcache, regno,
- &evrregs.evr[regno - tdep->ppc_ev0_upper_regnum]);
+ regcache->raw_supply (regno,
+ &evrregs.evr[regno - tdep->ppc_ev0_upper_regnum]);
if (regno == -1
|| regno == tdep->ppc_acc_regnum)
- regcache_raw_supply (regcache, tdep->ppc_acc_regnum, &evrregs.acc);
+ regcache->raw_supply (tdep->ppc_acc_regnum, &evrregs.acc);
if (regno == -1
|| regno == tdep->ppc_spefscr_regnum)
- regcache_raw_supply (regcache, tdep->ppc_spefscr_regnum,
- &evrregs.spefscr);
+ regcache->raw_supply (tdep->ppc_spefscr_regnum, &evrregs.spefscr);
+}
+
+/* Use ptrace to fetch all registers from the register set with note
+ type REGSET_ID, size REGSIZE, and layout described by REGSET, from
+ process/thread TID and supply their values to REGCACHE. If ptrace
+ returns ENODATA to indicate the regset is unavailable, mark the
+ registers as unavailable in REGCACHE. */
+
+static void
+fetch_regset (struct regcache *regcache, int tid,
+ int regset_id, int regsetsize, const struct regset *regset)
+{
+ void *buf = alloca (regsetsize);
+ struct iovec iov;
+
+ iov.iov_base = buf;
+ iov.iov_len = regsetsize;
+
+ if (ptrace (PTRACE_GETREGSET, tid, regset_id, &iov) < 0)
+ {
+ if (errno == ENODATA)
+ regset->supply_regset (regset, regcache, -1, NULL, regsetsize);
+ else
+ perror_with_name (_("Couldn't get register set"));
+ }
+ else
+ regset->supply_regset (regset, regcache, -1, buf, regsetsize);
+}
+
+/* Use ptrace to store register REGNUM of the regset with note type
+ REGSET_ID, size REGSETSIZE, and layout described by REGSET, from
+ REGCACHE back to process/thread TID. If REGNUM is -1 all registers
+ in the set are collected and stored. */
+
+static void
+store_regset (const struct regcache *regcache, int tid, int regnum,
+ int regset_id, int regsetsize, const struct regset *regset)
+{
+ void *buf = alloca (regsetsize);
+ struct iovec iov;
+
+ iov.iov_base = buf;
+ iov.iov_len = regsetsize;
+
+ /* Make sure that the buffer that will be stored has up to date values
+ for the registers that won't be collected. */
+ if (ptrace (PTRACE_GETREGSET, tid, regset_id, &iov) < 0)
+ perror_with_name (_("Couldn't get register set"));
+
+ regset->collect_regset (regset, regcache, regnum, buf, regsetsize);
+
+ if (ptrace (PTRACE_SETREGSET, tid, regset_id, &iov) < 0)
+ perror_with_name (_("Couldn't set register set"));
+}
+
+/* Check whether the kernel provides a register set with number
+ REGSET_ID of size REGSETSIZE for process/thread TID. */
+
+static bool
+check_regset (int tid, int regset_id, int regsetsize)
+{
+ void *buf = alloca (regsetsize);
+ struct iovec iov;
+
+ iov.iov_base = buf;
+ iov.iov_len = regsetsize;
+
+ if (ptrace (PTRACE_GETREGSET, tid, regset_id, &iov) >= 0
+ || errno == ENODATA)
+ return true;
+ else
+ return false;
}
static void
/* This isn't really an address. But ptrace thinks of it as one. */
CORE_ADDR regaddr = ppc_register_u_addr (gdbarch, regno);
int bytes_transferred;
- unsigned int offset; /* Offset of registers within the u area. */
gdb_byte buf[PPC_MAX_REGISTER_SIZE];
if (altivec_register_p (gdbarch, regno))
register. */
if (have_ptrace_getvrregs)
{
- fetch_altivec_register (regcache, tid, regno);
+ fetch_altivec_registers (regcache, tid, regno);
return;
}
/* If we have discovered that there is no ptrace support for
AltiVec registers, fall through and return zeroes, because
regaddr will be -1 in this case. */
}
- if (vsx_register_p (gdbarch, regno))
+ else if (vsx_register_p (gdbarch, regno))
{
if (have_ptrace_getsetvsxregs)
{
- fetch_vsx_register (regcache, tid, regno);
+ fetch_vsx_registers (regcache, tid, regno);
return;
}
}
fetch_spe_register (regcache, tid, regno);
return;
}
+ else if (regno == PPC_DSCR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_dscr_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_DSCR,
+ PPC_LINUX_SIZEOF_DSCRREGSET,
+ &ppc32_linux_dscrregset);
+ return;
+ }
+ else if (regno == PPC_PPR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_ppr_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_PPR,
+ PPC_LINUX_SIZEOF_PPRREGSET,
+ &ppc32_linux_pprregset);
+ return;
+ }
+ else if (regno == PPC_TAR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_tar_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_TAR,
+ PPC_LINUX_SIZEOF_TARREGSET,
+ &ppc32_linux_tarregset);
+ return;
+ }
+ else if (PPC_IS_EBB_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_ebb);
+
+ fetch_regset (regcache, tid, NT_PPC_EBB,
+ PPC_LINUX_SIZEOF_EBBREGSET,
+ &ppc32_linux_ebbregset);
+ return;
+ }
+ else if (PPC_IS_PMU_REGNUM (regno))
+ {
+ gdb_assert (tdep->ppc_mmcr0_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_PMU,
+ PPC_LINUX_SIZEOF_PMUREGSET,
+ &ppc32_linux_pmuregset);
+ return;
+ }
+ else if (PPC_IS_TMSPR_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_spr);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_SPR,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ &ppc32_linux_tm_sprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTGP_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_core);
+
+ const struct regset *cgprregset = ppc_linux_cgprregset (gdbarch);
+ fetch_regset (regcache, tid, NT_PPC_TM_CGPR,
+ (tdep->wordsize == 4?
+ PPC32_LINUX_SIZEOF_CGPRREGSET
+ : PPC64_LINUX_SIZEOF_CGPRREGSET),
+ cgprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTFP_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_fpu);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_CFPR,
+ PPC_LINUX_SIZEOF_CFPRREGSET,
+ &ppc32_linux_cfprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTVMX_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_altivec);
+
+ const struct regset *cvmxregset = ppc_linux_cvmxregset (gdbarch);
+ fetch_regset (regcache, tid, NT_PPC_TM_CVMX,
+ PPC_LINUX_SIZEOF_CVMXREGSET,
+ cvmxregset);
+ return;
+ }
+ else if (PPC_IS_CKPTVSX_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_vsx);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_CVSX,
+ PPC_LINUX_SIZEOF_CVSXREGSET,
+ &ppc32_linux_cvsxregset);
+ return;
+ }
+ else if (regno == PPC_CPPR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_cppr_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_CPPR,
+ PPC_LINUX_SIZEOF_CPPRREGSET,
+ &ppc32_linux_cpprregset);
+ return;
+ }
+ else if (regno == PPC_CDSCR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_cdscr_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_CDSCR,
+ PPC_LINUX_SIZEOF_CDSCRREGSET,
+ &ppc32_linux_cdscrregset);
+ return;
+ }
+ else if (regno == PPC_CTAR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_ctar_regnum != -1);
+
+ fetch_regset (regcache, tid, NT_PPC_TM_CTAR,
+ PPC_LINUX_SIZEOF_CTARREGSET,
+ &ppc32_linux_ctarregset);
+ return;
+ }
if (regaddr == -1)
{
memset (buf, '\0', register_size (gdbarch, regno)); /* Supply zeroes */
- regcache_raw_supply (regcache, regno, buf);
+ regcache->raw_supply (regno, buf);
return;
}
{
/* Little-endian values are always found at the left end of the
bytes transferred. */
- regcache_raw_supply (regcache, regno, buf);
+ regcache->raw_supply (regno, buf);
}
else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
{
/* Big-endian values are found at the right end of the bytes
transferred. */
size_t padding = (bytes_transferred - register_size (gdbarch, regno));
- regcache_raw_supply (regcache, regno, buf + padding);
+ regcache->raw_supply (regno, buf + padding);
}
else
internal_error (__FILE__, __LINE__,
gdbarch_byte_order (gdbarch));
}
-static void
-supply_vsxregset (struct regcache *regcache, gdb_vsxregset_t *vsxregsetp)
-{
- int i;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vsxregsize = register_size (gdbarch, tdep->ppc_vsr0_upper_regnum);
-
- for (i = 0; i < ppc_num_vshrs; i++)
- {
- regcache_raw_supply (regcache, tdep->ppc_vsr0_upper_regnum + i,
- *vsxregsetp + i * vsxregsize);
- }
-}
-
-static void
-supply_vrregset (struct regcache *regcache, gdb_vrregset_t *vrregsetp)
-{
- int i;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int num_of_vrregs = tdep->ppc_vrsave_regnum - tdep->ppc_vr0_regnum + 1;
- int vrregsize = register_size (gdbarch, tdep->ppc_vr0_regnum);
- int offset = vrregsize - register_size (gdbarch, tdep->ppc_vrsave_regnum);
-
- for (i = 0; i < num_of_vrregs; i++)
- {
- /* The last 2 registers of this set are only 32 bit long, not
- 128. However an offset is necessary only for VSCR because it
- occupies a whole vector, while VRSAVE occupies a full 4 bytes
- slot. */
- if (i == (num_of_vrregs - 2))
- regcache_raw_supply (regcache, tdep->ppc_vr0_regnum + i,
- *vrregsetp + i * vrregsize + offset);
- else
- regcache_raw_supply (regcache, tdep->ppc_vr0_regnum + i,
- *vrregsetp + i * vrregsize);
- }
-}
-
-static void
-fetch_vsx_registers (struct regcache *regcache, int tid)
-{
- int ret;
- gdb_vsxregset_t regs;
-
- ret = ptrace (PTRACE_GETVSXREGS, tid, 0, ®s);
- if (ret < 0)
- {
- if (errno == EIO)
- {
- have_ptrace_getsetvsxregs = 0;
- return;
- }
- perror_with_name (_("Unable to fetch VSX registers"));
- }
- supply_vsxregset (regcache, ®s);
-}
-
-static void
-fetch_altivec_registers (struct regcache *regcache, int tid)
-{
- int ret;
- gdb_vrregset_t regs;
-
- ret = ptrace (PTRACE_GETVRREGS, tid, 0, ®s);
- if (ret < 0)
- {
- if (errno == EIO)
- {
- have_ptrace_getvrregs = 0;
- return;
- }
- perror_with_name (_("Unable to fetch AltiVec registers"));
- }
- supply_vrregset (regcache, ®s);
-}
-
/* This function actually issues the request to ptrace, telling
it to get all general-purpose registers and put them into the
specified regset.
static int
fetch_all_gp_regs (struct regcache *regcache, int tid)
{
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_gregset_t gregset;
if (ptrace (PTRACE_GETREGS, tid, 0, (void *) &gregset) < 0)
static void
fetch_ppc_registers (struct regcache *regcache, int tid)
{
- int i;
struct gdbarch *gdbarch = regcache->arch ();
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
fetch_register (regcache, tid, tdep->ppc_fpscr_regnum);
if (have_ptrace_getvrregs)
if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
- fetch_altivec_registers (regcache, tid);
+ fetch_altivec_registers (regcache, tid, -1);
if (have_ptrace_getsetvsxregs)
if (tdep->ppc_vsr0_upper_regnum != -1)
- fetch_vsx_registers (regcache, tid);
+ fetch_vsx_registers (regcache, tid, -1);
if (tdep->ppc_ev0_upper_regnum >= 0)
fetch_spe_register (regcache, tid, -1);
+ if (tdep->ppc_ppr_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_PPR,
+ PPC_LINUX_SIZEOF_PPRREGSET,
+ &ppc32_linux_pprregset);
+ if (tdep->ppc_dscr_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_DSCR,
+ PPC_LINUX_SIZEOF_DSCRREGSET,
+ &ppc32_linux_dscrregset);
+ if (tdep->ppc_tar_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_TAR,
+ PPC_LINUX_SIZEOF_TARREGSET,
+ &ppc32_linux_tarregset);
+ if (tdep->have_ebb)
+ fetch_regset (regcache, tid, NT_PPC_EBB,
+ PPC_LINUX_SIZEOF_EBBREGSET,
+ &ppc32_linux_ebbregset);
+ if (tdep->ppc_mmcr0_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_PMU,
+ PPC_LINUX_SIZEOF_PMUREGSET,
+ &ppc32_linux_pmuregset);
+ if (tdep->have_htm_spr)
+ fetch_regset (regcache, tid, NT_PPC_TM_SPR,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ &ppc32_linux_tm_sprregset);
+ if (tdep->have_htm_core)
+ {
+ const struct regset *cgprregset = ppc_linux_cgprregset (gdbarch);
+ fetch_regset (regcache, tid, NT_PPC_TM_CGPR,
+ (tdep->wordsize == 4?
+ PPC32_LINUX_SIZEOF_CGPRREGSET
+ : PPC64_LINUX_SIZEOF_CGPRREGSET),
+ cgprregset);
+ }
+ if (tdep->have_htm_fpu)
+ fetch_regset (regcache, tid, NT_PPC_TM_CFPR,
+ PPC_LINUX_SIZEOF_CFPRREGSET,
+ &ppc32_linux_cfprregset);
+ if (tdep->have_htm_altivec)
+ {
+ const struct regset *cvmxregset = ppc_linux_cvmxregset (gdbarch);
+ fetch_regset (regcache, tid, NT_PPC_TM_CVMX,
+ PPC_LINUX_SIZEOF_CVMXREGSET,
+ cvmxregset);
+ }
+ if (tdep->have_htm_vsx)
+ fetch_regset (regcache, tid, NT_PPC_TM_CVSX,
+ PPC_LINUX_SIZEOF_CVSXREGSET,
+ &ppc32_linux_cvsxregset);
+ if (tdep->ppc_cppr_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_TM_CPPR,
+ PPC_LINUX_SIZEOF_CPPRREGSET,
+ &ppc32_linux_cpprregset);
+ if (tdep->ppc_cdscr_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_TM_CDSCR,
+ PPC_LINUX_SIZEOF_CDSCRREGSET,
+ &ppc32_linux_cdscrregset);
+ if (tdep->ppc_ctar_regnum != -1)
+ fetch_regset (regcache, tid, NT_PPC_TM_CTAR,
+ PPC_LINUX_SIZEOF_CTARREGSET,
+ &ppc32_linux_ctarregset);
}
/* Fetch registers from the child process. Fetch all registers if
void
ppc_linux_nat_target::fetch_registers (struct regcache *regcache, int regno)
{
- pid_t tid = get_ptrace_pid (regcache_get_ptid (regcache));
+ pid_t tid = get_ptrace_pid (regcache->ptid ());
if (regno == -1)
fetch_ppc_registers (regcache, tid);
fetch_register (regcache, tid, regno);
}
-/* Store one VSX register. */
static void
-store_vsx_register (const struct regcache *regcache, int tid, int regno)
+store_vsx_registers (const struct regcache *regcache, int tid, int regno)
{
int ret;
gdb_vsxregset_t regs;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vsxregsize = register_size (gdbarch, tdep->ppc_vsr0_upper_regnum);
+ const struct regset *vsxregset = ppc_linux_vsxregset ();
ret = ptrace (PTRACE_GETVSXREGS, tid, 0, ®s);
if (ret < 0)
have_ptrace_getsetvsxregs = 0;
return;
}
- perror_with_name (_("Unable to fetch VSX register"));
+ perror_with_name (_("Unable to fetch VSX registers"));
}
- regcache_raw_collect (regcache, regno, regs +
- (regno - tdep->ppc_vsr0_upper_regnum) * vsxregsize);
+ vsxregset->collect_regset (vsxregset, regcache, regno, ®s,
+ PPC_LINUX_SIZEOF_VSXREGSET);
ret = ptrace (PTRACE_SETVSXREGS, tid, 0, ®s);
if (ret < 0)
- perror_with_name (_("Unable to store VSX register"));
+ perror_with_name (_("Unable to store VSX registers"));
}
-/* Store one register. */
static void
-store_altivec_register (const struct regcache *regcache, int tid, int regno)
+store_altivec_registers (const struct regcache *regcache, int tid,
+ int regno)
{
int ret;
- int offset = 0;
gdb_vrregset_t regs;
struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vrregsize = register_size (gdbarch, tdep->ppc_vr0_regnum);
+ const struct regset *vrregset = ppc_linux_vrregset (gdbarch);
ret = ptrace (PTRACE_GETVRREGS, tid, 0, ®s);
if (ret < 0)
have_ptrace_getvrregs = 0;
return;
}
- perror_with_name (_("Unable to fetch AltiVec register"));
+ perror_with_name (_("Unable to fetch AltiVec registers"));
}
- /* VSCR is fetched as a 16 bytes quantity, but it is really 4 bytes
- long on the hardware. */
- if (regno == (tdep->ppc_vrsave_regnum - 1))
- offset = vrregsize - register_size (gdbarch, tdep->ppc_vrsave_regnum);
-
- regcache_raw_collect (regcache, regno,
- regs + (regno
- - tdep->ppc_vr0_regnum) * vrregsize + offset);
+ vrregset->collect_regset (vrregset, regcache, regno, ®s,
+ PPC_LINUX_SIZEOF_VRREGSET);
ret = ptrace (PTRACE_SETVRREGS, tid, 0, ®s);
if (ret < 0)
- perror_with_name (_("Unable to store AltiVec register"));
+ perror_with_name (_("Unable to store AltiVec registers"));
}
/* Assuming TID referrs to an SPE process, set the top halves of TID's
int i;
for (i = 0; i < ppc_num_gprs; i++)
- regcache_raw_collect (regcache,
- tdep->ppc_ev0_upper_regnum + i,
- &evrregs.evr[i]);
+ regcache->raw_collect (tdep->ppc_ev0_upper_regnum + i,
+ &evrregs.evr[i]);
}
else if (tdep->ppc_ev0_upper_regnum <= regno
&& regno < tdep->ppc_ev0_upper_regnum + ppc_num_gprs)
- regcache_raw_collect (regcache, regno,
- &evrregs.evr[regno - tdep->ppc_ev0_upper_regnum]);
+ regcache->raw_collect (regno,
+ &evrregs.evr[regno - tdep->ppc_ev0_upper_regnum]);
if (regno == -1
|| regno == tdep->ppc_acc_regnum)
- regcache_raw_collect (regcache,
- tdep->ppc_acc_regnum,
- &evrregs.acc);
+ regcache->raw_collect (tdep->ppc_acc_regnum,
+ &evrregs.acc);
if (regno == -1
|| regno == tdep->ppc_spefscr_regnum)
- regcache_raw_collect (regcache,
- tdep->ppc_spefscr_regnum,
- &evrregs.spefscr);
+ regcache->raw_collect (tdep->ppc_spefscr_regnum,
+ &evrregs.spefscr);
/* Write back the modified register set. */
set_spe_registers (tid, &evrregs);
if (altivec_register_p (gdbarch, regno))
{
- store_altivec_register (regcache, tid, regno);
+ store_altivec_registers (regcache, tid, regno);
return;
}
- if (vsx_register_p (gdbarch, regno))
+ else if (vsx_register_p (gdbarch, regno))
{
- store_vsx_register (regcache, tid, regno);
+ store_vsx_registers (regcache, tid, regno);
return;
}
else if (spe_register_p (gdbarch, regno))
store_spe_register (regcache, tid, regno);
return;
}
+ else if (regno == PPC_DSCR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_dscr_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_DSCR,
+ PPC_LINUX_SIZEOF_DSCRREGSET,
+ &ppc32_linux_dscrregset);
+ return;
+ }
+ else if (regno == PPC_PPR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_ppr_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_PPR,
+ PPC_LINUX_SIZEOF_PPRREGSET,
+ &ppc32_linux_pprregset);
+ return;
+ }
+ else if (regno == PPC_TAR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_tar_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_TAR,
+ PPC_LINUX_SIZEOF_TARREGSET,
+ &ppc32_linux_tarregset);
+ return;
+ }
+ else if (PPC_IS_EBB_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_ebb);
+
+ store_regset (regcache, tid, regno, NT_PPC_EBB,
+ PPC_LINUX_SIZEOF_EBBREGSET,
+ &ppc32_linux_ebbregset);
+ return;
+ }
+ else if (PPC_IS_PMU_REGNUM (regno))
+ {
+ gdb_assert (tdep->ppc_mmcr0_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_PMU,
+ PPC_LINUX_SIZEOF_PMUREGSET,
+ &ppc32_linux_pmuregset);
+ return;
+ }
+ else if (PPC_IS_TMSPR_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_spr);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_SPR,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ &ppc32_linux_tm_sprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTGP_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_core);
+
+ const struct regset *cgprregset = ppc_linux_cgprregset (gdbarch);
+ store_regset (regcache, tid, regno, NT_PPC_TM_CGPR,
+ (tdep->wordsize == 4?
+ PPC32_LINUX_SIZEOF_CGPRREGSET
+ : PPC64_LINUX_SIZEOF_CGPRREGSET),
+ cgprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTFP_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_fpu);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_CFPR,
+ PPC_LINUX_SIZEOF_CFPRREGSET,
+ &ppc32_linux_cfprregset);
+ return;
+ }
+ else if (PPC_IS_CKPTVMX_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_altivec);
+
+ const struct regset *cvmxregset = ppc_linux_cvmxregset (gdbarch);
+ store_regset (regcache, tid, regno, NT_PPC_TM_CVMX,
+ PPC_LINUX_SIZEOF_CVMXREGSET,
+ cvmxregset);
+ return;
+ }
+ else if (PPC_IS_CKPTVSX_REGNUM (regno))
+ {
+ gdb_assert (tdep->have_htm_vsx);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_CVSX,
+ PPC_LINUX_SIZEOF_CVSXREGSET,
+ &ppc32_linux_cvsxregset);
+ return;
+ }
+ else if (regno == PPC_CPPR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_cppr_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_CPPR,
+ PPC_LINUX_SIZEOF_CPPRREGSET,
+ &ppc32_linux_cpprregset);
+ return;
+ }
+ else if (regno == PPC_CDSCR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_cdscr_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_CDSCR,
+ PPC_LINUX_SIZEOF_CDSCRREGSET,
+ &ppc32_linux_cdscrregset);
+ return;
+ }
+ else if (regno == PPC_CTAR_REGNUM)
+ {
+ gdb_assert (tdep->ppc_ctar_regnum != -1);
+
+ store_regset (regcache, tid, regno, NT_PPC_TM_CTAR,
+ PPC_LINUX_SIZEOF_CTARREGSET,
+ &ppc32_linux_ctarregset);
+ return;
+ }
if (regaddr == -1)
return;
if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
{
/* Little-endian values always sit at the left end of the buffer. */
- regcache_raw_collect (regcache, regno, buf);
+ regcache->raw_collect (regno, buf);
}
else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
{
/* Big-endian values sit at the right end of the buffer. */
size_t padding = (bytes_to_transfer - register_size (gdbarch, regno));
- regcache_raw_collect (regcache, regno, buf + padding);
+ regcache->raw_collect (regno, buf + padding);
}
for (i = 0; i < bytes_to_transfer; i += sizeof (long))
}
}
-static void
-fill_vsxregset (const struct regcache *regcache, gdb_vsxregset_t *vsxregsetp)
-{
- int i;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int vsxregsize = register_size (gdbarch, tdep->ppc_vsr0_upper_regnum);
-
- for (i = 0; i < ppc_num_vshrs; i++)
- regcache_raw_collect (regcache, tdep->ppc_vsr0_upper_regnum + i,
- *vsxregsetp + i * vsxregsize);
-}
-
-static void
-fill_vrregset (const struct regcache *regcache, gdb_vrregset_t *vrregsetp)
-{
- int i;
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- int num_of_vrregs = tdep->ppc_vrsave_regnum - tdep->ppc_vr0_regnum + 1;
- int vrregsize = register_size (gdbarch, tdep->ppc_vr0_regnum);
- int offset = vrregsize - register_size (gdbarch, tdep->ppc_vrsave_regnum);
-
- for (i = 0; i < num_of_vrregs; i++)
- {
- /* The last 2 registers of this set are only 32 bit long, not
- 128, but only VSCR is fetched as a 16 bytes quantity. */
- if (i == (num_of_vrregs - 2))
- regcache_raw_collect (regcache, tdep->ppc_vr0_regnum + i,
- *vrregsetp + i * vrregsize + offset);
- else
- regcache_raw_collect (regcache, tdep->ppc_vr0_regnum + i,
- *vrregsetp + i * vrregsize);
- }
-}
-
-static void
-store_vsx_registers (const struct regcache *regcache, int tid)
-{
- int ret;
- gdb_vsxregset_t regs;
-
- ret = ptrace (PTRACE_GETVSXREGS, tid, 0, ®s);
- if (ret < 0)
- {
- if (errno == EIO)
- {
- have_ptrace_getsetvsxregs = 0;
- return;
- }
- perror_with_name (_("Couldn't get VSX registers"));
- }
-
- fill_vsxregset (regcache, ®s);
-
- if (ptrace (PTRACE_SETVSXREGS, tid, 0, ®s) < 0)
- perror_with_name (_("Couldn't write VSX registers"));
-}
-
-static void
-store_altivec_registers (const struct regcache *regcache, int tid)
-{
- int ret;
- gdb_vrregset_t regs;
-
- ret = ptrace (PTRACE_GETVRREGS, tid, 0, ®s);
- if (ret < 0)
- {
- if (errno == EIO)
- {
- have_ptrace_getvrregs = 0;
- return;
- }
- perror_with_name (_("Couldn't get AltiVec registers"));
- }
-
- fill_vrregset (regcache, ®s);
-
- if (ptrace (PTRACE_SETVRREGS, tid, 0, ®s) < 0)
- perror_with_name (_("Couldn't write AltiVec registers"));
-}
-
/* This function actually issues the request to ptrace, telling
it to store all general-purpose registers present in the specified
regset.
static int
store_all_gp_regs (const struct regcache *regcache, int tid, int regno)
{
- struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_gregset_t gregset;
if (ptrace (PTRACE_GETREGS, tid, 0, (void *) &gregset) < 0)
static void
store_ppc_registers (const struct regcache *regcache, int tid)
{
- int i;
struct gdbarch *gdbarch = regcache->arch ();
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
}
if (have_ptrace_getvrregs)
if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
- store_altivec_registers (regcache, tid);
+ store_altivec_registers (regcache, tid, -1);
if (have_ptrace_getsetvsxregs)
if (tdep->ppc_vsr0_upper_regnum != -1)
- store_vsx_registers (regcache, tid);
+ store_vsx_registers (regcache, tid, -1);
if (tdep->ppc_ev0_upper_regnum >= 0)
store_spe_register (regcache, tid, -1);
+ if (tdep->ppc_ppr_regnum != -1)
+ store_regset (regcache, tid, -1, NT_PPC_PPR,
+ PPC_LINUX_SIZEOF_PPRREGSET,
+ &ppc32_linux_pprregset);
+ if (tdep->ppc_dscr_regnum != -1)
+ store_regset (regcache, tid, -1, NT_PPC_DSCR,
+ PPC_LINUX_SIZEOF_DSCRREGSET,
+ &ppc32_linux_dscrregset);
+ if (tdep->ppc_tar_regnum != -1)
+ store_regset (regcache, tid, -1, NT_PPC_TAR,
+ PPC_LINUX_SIZEOF_TARREGSET,
+ &ppc32_linux_tarregset);
+
+ if (tdep->ppc_mmcr0_regnum != -1)
+ store_regset (regcache, tid, -1, NT_PPC_PMU,
+ PPC_LINUX_SIZEOF_PMUREGSET,
+ &ppc32_linux_pmuregset);
+
+ if (tdep->have_htm_spr)
+ store_regset (regcache, tid, -1, NT_PPC_TM_SPR,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ &ppc32_linux_tm_sprregset);
+
+ /* Because the EBB and checkpointed HTM registers can be
+ unavailable, attempts to store them here would cause this
+ function to fail most of the time, so we ignore them. */
}
/* Fetch the AT_HWCAP entry from the aux vector. */
-static unsigned long
+static CORE_ADDR
ppc_linux_get_hwcap (void)
{
CORE_ADDR field;
- if (target_auxv_search (target_stack, AT_HWCAP, &field))
- return (unsigned long) field;
+ if (target_auxv_search (current_top_target (), AT_HWCAP, &field) != 1)
+ return 0;
- return 0;
+ return field;
+}
+
+/* Fetch the AT_HWCAP2 entry from the aux vector. */
+
+static CORE_ADDR
+ppc_linux_get_hwcap2 (void)
+{
+ CORE_ADDR field;
+
+ if (target_auxv_search (current_top_target (), AT_HWCAP2, &field) != 1)
+ return 0;
+
+ return field;
}
/* The cached DABR value, to install in new threads.
{
int tid;
- tid = ptid_get_lwp (inferior_ptid);
+ tid = inferior_ptid.lwp ();
if (tid == 0)
- tid = ptid_get_pid (inferior_ptid);
+ tid = inferior_ptid.pid ();
/* Check for kernel support for PowerPC HWDEBUG ptrace interface. */
if (ptrace (PPC_PTRACE_GETHWDBGINFO, tid, 0, &hwdebug_info) >= 0)
/* We need to know whether ptrace supports PTRACE_SET_DEBUGREG
and whether the target has DABR. If either answer is no, the
ptrace call will return -1. Fail in that case. */
- tid = ptid_get_lwp (ptid);
+ tid = ptid.lwp ();
if (tid == 0)
- tid = ptid_get_pid (ptid);
+ tid = ptid.pid ();
if (ptrace (PTRACE_SET_DEBUGREG, tid, 0, 0) == -1)
return 0;
gdb::unique_xmalloc_ptr<ppc_hw_breakpoint> p (XDUP (ppc_hw_breakpoint, b));
struct hw_break_tuple *hw_breaks;
struct thread_points *t;
- struct hw_break_tuple *tuple;
errno = 0;
slot = ptrace (PPC_PTRACE_SETHWDEBUG, tid, 0, p.get ());
}
ALL_LWPS (lp)
- hwdebug_insert_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_insert_point (&p, lp->ptid.lwp ());
return 0;
}
}
ALL_LWPS (lp)
- hwdebug_remove_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_remove_point (&p, lp->ptid.lwp ());
return 0;
}
p.condition_value = 0;
ALL_LWPS (lp)
- hwdebug_insert_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_insert_point (&p, lp->ptid.lwp ());
return 0;
}
p.condition_value = 0;
ALL_LWPS (lp)
- hwdebug_remove_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_remove_point (&p, lp->ptid.lwp ());
return 0;
}
can_use_watchpoint_cond_accel (void)
{
struct thread_points *p;
- int tid = ptid_get_lwp (inferior_ptid);
+ int tid = inferior_ptid.lwp ();
int cnt = hwdebug_info.num_condition_regs, i;
- CORE_ADDR tmp_value;
if (!have_ptrace_hwdebug_interface () || cnt == 0)
return 0;
/* Return non-zero if the target is capable of using hardware to evaluate
the condition expression, thus only triggering the watchpoint when it is
true. */
-int
+bool
ppc_linux_nat_target::can_accel_watchpoint_condition (CORE_ADDR addr, int len,
int rw,
struct expression *cond)
create_watchpoint_request (&p, addr, len, type, cond, 1);
ALL_LWPS (lp)
- hwdebug_insert_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_insert_point (&p, lp->ptid.lwp ());
ret = 0;
}
saved_dabr_value = dabr_value;
ALL_LWPS (lp)
- if (ptrace (PTRACE_SET_DEBUGREG, ptid_get_lwp (lp->ptid), 0,
+ if (ptrace (PTRACE_SET_DEBUGREG, lp->ptid.lwp (), 0,
saved_dabr_value) < 0)
return -1;
create_watchpoint_request (&p, addr, len, type, cond, 0);
ALL_LWPS (lp)
- hwdebug_remove_point (&p, ptid_get_lwp (lp->ptid));
+ hwdebug_remove_point (&p, lp->ptid.lwp ());
ret = 0;
}
{
saved_dabr_value = 0;
ALL_LWPS (lp)
- if (ptrace (PTRACE_SET_DEBUGREG, ptid_get_lwp (lp->ptid), 0,
+ if (ptrace (PTRACE_SET_DEBUGREG, lp->ptid.lwp (), 0,
saved_dabr_value) < 0)
return -1;
return ret;
}
-static void
-ppc_linux_new_thread (struct lwp_info *lp)
+void
+ppc_linux_nat_target::low_new_thread (struct lwp_info *lp)
{
- int tid = ptid_get_lwp (lp->ptid);
+ int tid = lp->ptid.lwp ();
if (have_ptrace_hwdebug_interface ())
{
ppc_linux_thread_exit (struct thread_info *tp, int silent)
{
int i;
- int tid = ptid_get_lwp (tp->ptid);
+ int tid = tp->ptid.lwp ();
struct hw_break_tuple *hw_breaks;
struct thread_points *t = NULL, *p;
xfree (t);
}
-int
+bool
ppc_linux_nat_target::stopped_data_address (CORE_ADDR *addr_p)
{
siginfo_t siginfo;
if (!linux_nat_get_siginfo (inferior_ptid, &siginfo))
- return 0;
+ return false;
if (siginfo.si_signo != SIGTRAP
|| (siginfo.si_code & 0xffff) != 0x0004 /* TRAP_HWBKPT */)
- return 0;
+ return false;
if (have_ptrace_hwdebug_interface ())
{
/* The index (or slot) of the *point is passed in the si_errno field. */
int slot = siginfo.si_errno;
- t = hwdebug_find_thread_points_by_tid (ptid_get_lwp (inferior_ptid), 0);
+ t = hwdebug_find_thread_points_by_tid (inferior_ptid.lwp (), 0);
/* Find out if this *point is a hardware breakpoint.
If so, we should return 0. */
if (hw_breaks[i].hw_break && hw_breaks[i].slot == slot
&& hw_breaks[i].hw_break->trigger_type
== PPC_BREAKPOINT_TRIGGER_EXECUTE)
- return 0;
+ return false;
}
}
*addr_p = (CORE_ADDR) (uintptr_t) siginfo.si_addr;
- return 1;
+ return true;
}
-int
+bool
ppc_linux_nat_target::stopped_by_watchpoint ()
{
CORE_ADDR addr;
return stopped_data_address (&addr);
}
-int
+bool
ppc_linux_nat_target::watchpoint_addr_within_range (CORE_ADDR addr,
CORE_ADDR start,
int length)
void
ppc_linux_nat_target::store_registers (struct regcache *regcache, int regno)
{
- pid_t tid = get_ptrace_pid (regcache_get_ptid (regcache));
+ pid_t tid = get_ptrace_pid (regcache->ptid ());
if (regno >= 0)
store_register (regcache, tid, regno);
fpregsetp, sizeof (*fpregsetp));
}
-static int
-ppc_linux_target_wordsize (void)
-{
- int wordsize = 4;
-
- /* Check for 64-bit inferior process. This is the case when the host is
- 64-bit, and in addition the top bit of the MSR register is set. */
-#ifdef __powerpc64__
- long msr;
-
- int tid = ptid_get_lwp (inferior_ptid);
- if (tid == 0)
- tid = ptid_get_pid (inferior_ptid);
-
- errno = 0;
- msr = (long) ptrace (PTRACE_PEEKUSER, tid, PT_MSR * 8, 0);
- if (errno == 0 && ppc64_64bit_inferior_p (msr))
- wordsize = 8;
-#endif
-
- return wordsize;
-}
-
int
ppc_linux_nat_target::auxv_parse (gdb_byte **readptr,
gdb_byte *endptr, CORE_ADDR *typep,
CORE_ADDR *valp)
{
- int sizeof_auxv_field = ppc_linux_target_wordsize ();
+ int tid = inferior_ptid.lwp ();
+ if (tid == 0)
+ tid = inferior_ptid.pid ();
+
+ int sizeof_auxv_field = ppc_linux_target_wordsize (tid);
+
enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
gdb_byte *ptr = *readptr;
const struct target_desc *
ppc_linux_nat_target::read_description ()
{
- int altivec = 0;
- int vsx = 0;
- int isa205 = 0;
- int cell = 0;
-
- int tid = ptid_get_lwp (inferior_ptid);
+ int tid = inferior_ptid.lwp ();
if (tid == 0)
- tid = ptid_get_pid (inferior_ptid);
+ tid = inferior_ptid.pid ();
if (have_ptrace_getsetevrregs)
{
perror_with_name (_("Unable to fetch SPE registers"));
}
+ struct ppc_linux_features features = ppc_linux_no_features;
+
+ features.wordsize = ppc_linux_target_wordsize (tid);
+
+ CORE_ADDR hwcap = ppc_linux_get_hwcap ();
+ CORE_ADDR hwcap2 = ppc_linux_get_hwcap2 ();
+
if (have_ptrace_getsetvsxregs
- && (ppc_linux_get_hwcap () & PPC_FEATURE_HAS_VSX))
+ && (hwcap & PPC_FEATURE_HAS_VSX))
{
gdb_vsxregset_t vsxregset;
if (ptrace (PTRACE_GETVSXREGS, tid, 0, &vsxregset) >= 0)
- vsx = 1;
+ features.vsx = true;
/* EIO means that the PTRACE_GETVSXREGS request isn't supported.
Anything else needs to be reported. */
}
if (have_ptrace_getvrregs
- && (ppc_linux_get_hwcap () & PPC_FEATURE_HAS_ALTIVEC))
+ && (hwcap & PPC_FEATURE_HAS_ALTIVEC))
{
gdb_vrregset_t vrregset;
if (ptrace (PTRACE_GETVRREGS, tid, 0, &vrregset) >= 0)
- altivec = 1;
+ features.altivec = true;
/* EIO means that the PTRACE_GETVRREGS request isn't supported.
Anything else needs to be reported. */
perror_with_name (_("Unable to fetch AltiVec registers"));
}
- /* Power ISA 2.05 (implemented by Power 6 and newer processors) increases
- the FPSCR from 32 bits to 64 bits. Even though Power 7 supports this
- ISA version, it doesn't have PPC_FEATURE_ARCH_2_05 set, only
- PPC_FEATURE_ARCH_2_06. Since for now the only bits used in the higher
- half of the register are for Decimal Floating Point, we check if that
- feature is available to decide the size of the FPSCR. */
- if (ppc_linux_get_hwcap () & PPC_FEATURE_HAS_DFP)
- isa205 = 1;
+ if (hwcap & PPC_FEATURE_CELL)
+ features.cell = true;
- if (ppc_linux_get_hwcap () & PPC_FEATURE_CELL)
- cell = 1;
+ features.isa205 = ppc_linux_has_isa205 (hwcap);
- if (ppc_linux_target_wordsize () == 8)
+ if ((hwcap2 & PPC_FEATURE2_DSCR)
+ && check_regset (tid, NT_PPC_PPR, PPC_LINUX_SIZEOF_PPRREGSET)
+ && check_regset (tid, NT_PPC_DSCR, PPC_LINUX_SIZEOF_DSCRREGSET))
{
- if (cell)
- return tdesc_powerpc_cell64l;
- else if (vsx)
- return isa205? tdesc_powerpc_isa205_vsx64l : tdesc_powerpc_vsx64l;
- else if (altivec)
- return isa205
- ? tdesc_powerpc_isa205_altivec64l : tdesc_powerpc_altivec64l;
-
- return isa205? tdesc_powerpc_isa205_64l : tdesc_powerpc_64l;
+ features.ppr_dscr = true;
+ if ((hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ && (hwcap2 & PPC_FEATURE2_TAR)
+ && (hwcap2 & PPC_FEATURE2_EBB)
+ && check_regset (tid, NT_PPC_TAR, PPC_LINUX_SIZEOF_TARREGSET)
+ && check_regset (tid, NT_PPC_EBB, PPC_LINUX_SIZEOF_EBBREGSET)
+ && check_regset (tid, NT_PPC_PMU, PPC_LINUX_SIZEOF_PMUREGSET))
+ {
+ features.isa207 = true;
+ if ((hwcap2 & PPC_FEATURE2_HTM)
+ && check_regset (tid, NT_PPC_TM_SPR,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET))
+ features.htm = true;
+ }
}
- if (cell)
- return tdesc_powerpc_cell32l;
- else if (vsx)
- return isa205? tdesc_powerpc_isa205_vsx32l : tdesc_powerpc_vsx32l;
- else if (altivec)
- return isa205? tdesc_powerpc_isa205_altivec32l : tdesc_powerpc_altivec32l;
-
- return isa205? tdesc_powerpc_isa205_32l : tdesc_powerpc_32l;
+ return ppc_linux_match_description (features);
}
void
gdb::observers::thread_exit.attach (ppc_linux_thread_exit);
/* Register the target. */
- add_target (linux_target);
-
- linux_nat_set_new_thread (linux_target, ppc_linux_new_thread);
+ add_inf_child_target (linux_target);
}