/* Target-dependent code for GDB, the GNU debugger.
- Copyright (C) 1986-2018 Free Software Foundation, Inc.
+ Copyright (C) 1986-2023 Free Software Foundation, Inc.
This file is part of GDB.
#include "osabi.h"
#include "regset.h"
#include "solib-svr4.h"
-#include "solib-spu.h"
#include "solib.h"
#include "solist.h"
#include "ppc-tdep.h"
#include "ppc64-tdep.h"
#include "ppc-linux-tdep.h"
+#include "arch/ppc-linux-common.h"
+#include "arch/ppc-linux-tdesc.h"
#include "glibc-tdep.h"
#include "trad-frame.h"
#include "frame-unwind.h"
#include "elf/common.h"
#include "elf/ppc64.h"
#include "arch-utils.h"
-#include "spu-tdep.h"
#include "xml-syscall.h"
#include "linux-tdep.h"
#include "linux-record.h"
#include "record-full.h"
#include "infrun.h"
+#include "expop.h"
#include "stap-probe.h"
#include "ax.h"
#include "user-regs.h"
#include <ctype.h>
#include "elf-bfd.h"
+#include "producer.h"
#include "features/rs6000/powerpc-32l.c"
#include "features/rs6000/powerpc-altivec32l.c"
-#include "features/rs6000/powerpc-cell32l.c"
#include "features/rs6000/powerpc-vsx32l.c"
#include "features/rs6000/powerpc-isa205-32l.c"
#include "features/rs6000/powerpc-isa205-altivec32l.c"
#include "features/rs6000/powerpc-isa205-vsx32l.c"
+#include "features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c"
+#include "features/rs6000/powerpc-isa207-vsx32l.c"
+#include "features/rs6000/powerpc-isa207-htm-vsx32l.c"
#include "features/rs6000/powerpc-64l.c"
#include "features/rs6000/powerpc-altivec64l.c"
-#include "features/rs6000/powerpc-cell64l.c"
#include "features/rs6000/powerpc-vsx64l.c"
#include "features/rs6000/powerpc-isa205-64l.c"
#include "features/rs6000/powerpc-isa205-altivec64l.c"
#include "features/rs6000/powerpc-isa205-vsx64l.c"
+#include "features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c"
+#include "features/rs6000/powerpc-isa207-vsx64l.c"
+#include "features/rs6000/powerpc-isa207-htm-vsx64l.c"
#include "features/rs6000/powerpc-e500l.c"
/* Shared library operations for PowerPC-Linux. */
Examine the PLT again. Note that the loading of the shared
library has initialized the PLT to code which loads a constant
(which I think is an index into the GOT) into r11 and then
- branchs a short distance to the code which actually does the
+ branches a short distance to the code which actually does the
resolving.
(gdb) x/2i 0x100409d4
static enum return_value_convention
ppc_linux_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *valtype, struct regcache *regcache,
- gdb_byte *readbuf, const gdb_byte *writebuf)
+ struct value **read_value, const gdb_byte *writebuf)
{
- if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
- || TYPE_CODE (valtype) == TYPE_CODE_UNION)
- && !((TYPE_LENGTH (valtype) == 16 || TYPE_LENGTH (valtype) == 8)
- && TYPE_VECTOR (valtype)))
+ gdb_byte *readbuf = nullptr;
+ if (read_value != nullptr)
+ {
+ *read_value = value::allocate (valtype);
+ readbuf = (*read_value)->contents_raw ().data ();
+ }
+
+ if ((valtype->code () == TYPE_CODE_STRUCT
+ || valtype->code () == TYPE_CODE_UNION)
+ && !((valtype->length () == 16 || valtype->length () == 8)
+ && valtype->is_vector ()))
return RETURN_VALUE_STRUCT_CONVENTION;
else
return ppc_sysv_abi_return_value (gdbarch, function, valtype, regcache,
/* Check if we are in the resolver. */
sym = lookup_minimal_symbol_by_pc (pc);
if (sym.minsym != NULL
- && (strcmp (MSYMBOL_LINKAGE_NAME (sym.minsym), "__glink") == 0
- || strcmp (MSYMBOL_LINKAGE_NAME (sym.minsym),
- "__glink_PLTresolve") == 0))
+ && (strcmp (sym.minsym->linkage_name (), "__glink") == 0
+ || strcmp (sym.minsym->linkage_name (), "__glink_PLTresolve") == 0))
return 1;
return 0;
stub sequence. */
static CORE_ADDR
-ppc_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
+ppc_skip_trampoline_code (frame_info_ptr frame, CORE_ADDR pc)
{
unsigned int insnbuf[POWERPC32_PLT_CHECK_LEN];
struct gdbarch *gdbarch = get_frame_arch (frame);
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR target = 0;
int scan_limit, i;
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
- /* .fpscr_size = */ 8,
-
- /* AltiVec registers. */
- /* .vr0_offset = */ 0,
- /* .vscr_offset = */ 512 + 12,
- /* .vrsave_offset = */ 528
+ /* .fpscr_size = */ 8
};
static const struct ppc_reg_offsets ppc64_linux_reg_offsets =
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
- /* .fpscr_size = */ 8,
-
- /* AltiVec registers. */
- /* .vr0_offset = */ 0,
- /* .vscr_offset = */ 512 + 12,
- /* .vrsave_offset = */ 528
+ /* .fpscr_size = */ 8
};
static const struct regset ppc32_linux_gregset = {
ppc_collect_fpregset
};
-static const struct regset ppc32_linux_vrregset = {
- &ppc32_linux_reg_offsets,
- ppc_supply_vrregset,
- ppc_collect_vrregset
+static const struct regcache_map_entry ppc32_le_linux_vrregmap[] =
+ {
+ { 32, PPC_VR0_REGNUM, 16 },
+ { 1, PPC_VSCR_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 1, PPC_VRSAVE_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 0 }
+ };
+
+static const struct regcache_map_entry ppc32_be_linux_vrregmap[] =
+ {
+ { 32, PPC_VR0_REGNUM, 16 },
+ { 1, REGCACHE_MAP_SKIP, 12},
+ { 1, PPC_VSCR_REGNUM, 4 },
+ { 1, PPC_VRSAVE_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 0 }
+ };
+
+static const struct regset ppc32_le_linux_vrregset = {
+ ppc32_le_linux_vrregmap,
+ regcache_supply_regset,
+ regcache_collect_regset
};
+static const struct regset ppc32_be_linux_vrregset = {
+ ppc32_be_linux_vrregmap,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+static const struct regcache_map_entry ppc32_linux_vsxregmap[] =
+ {
+ { 32, PPC_VSR0_UPPER_REGNUM, 8 },
+ { 0 }
+ };
+
static const struct regset ppc32_linux_vsxregset = {
- &ppc32_linux_reg_offsets,
- ppc_supply_vsxregset,
- ppc_collect_vsxregset
+ ppc32_linux_vsxregmap,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Program Priorty Register regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_ppr[] =
+ {
+ { 1, PPC_PPR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Program Priorty Register regset. */
+
+const struct regset ppc32_linux_pprregset = {
+ ppc32_regmap_ppr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Data Stream Control Register regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_dscr[] =
+ {
+ { 1, PPC_DSCR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Data Stream Control Register regset. */
+
+const struct regset ppc32_linux_dscrregset = {
+ ppc32_regmap_dscr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Target Address Register regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_tar[] =
+ {
+ { 1, PPC_TAR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Target Address Register regset. */
+
+const struct regset ppc32_linux_tarregset = {
+ ppc32_regmap_tar,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Event-Based Branching regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_ebb[] =
+ {
+ { 1, PPC_EBBRR_REGNUM, 8 },
+ { 1, PPC_EBBHR_REGNUM, 8 },
+ { 1, PPC_BESCR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Event-Based Branching regset. */
+
+const struct regset ppc32_linux_ebbregset = {
+ ppc32_regmap_ebb,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Performance Monitoring Unit regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_pmu[] =
+ {
+ { 1, PPC_SIAR_REGNUM, 8 },
+ { 1, PPC_SDAR_REGNUM, 8 },
+ { 1, PPC_SIER_REGNUM, 8 },
+ { 1, PPC_MMCR2_REGNUM, 8 },
+ { 1, PPC_MMCR0_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Performance Monitoring Unit regset. */
+
+const struct regset ppc32_linux_pmuregset = {
+ ppc32_regmap_pmu,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory special-purpose register regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_tm_spr[] =
+ {
+ { 1, PPC_TFHAR_REGNUM, 8 },
+ { 1, PPC_TEXASR_REGNUM, 8 },
+ { 1, PPC_TFIAR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory special-purpose register regset. */
+
+const struct regset ppc32_linux_tm_sprregset = {
+ ppc32_regmap_tm_spr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Regmaps for the Hardware Transactional Memory checkpointed
+ general-purpose regsets for 32-bit, 64-bit big-endian, and 64-bit
+ little endian targets. The ptrace and core file buffers for 64-bit
+ targets use 8-byte fields for the 4-byte registers, and the
+ position of the register in the fields depends on the endianness.
+ The 32-bit regmap is the same for both endian types because the
+ fields are all 4-byte long.
+
+ The layout of checkpointed GPR regset is the same as a regular
+ struct pt_regs, but we skip all registers that are not actually
+ checkpointed by the processor (e.g. msr, nip), except when
+ generating a core file. The 64-bit regset is 48 * 8 bytes long.
+ In some 64-bit kernels, the regset for a 32-bit inferior has the
+ same length, but all the registers are squeezed in the first half
+ (48 * 4 bytes). The pt_regs struct calls the regular cr ccr, but
+ we use ccr for "checkpointed condition register". Note that CR
+ (condition register) field 0 is not checkpointed, but the kernel
+ returns all 4 bytes. The skipped registers should not be touched
+ when writing the regset to the inferior (with
+ PTRACE_SETREGSET). */
+
+static const struct regcache_map_entry ppc32_regmap_cgpr[] =
+ {
+ { 32, PPC_CR0_REGNUM, 4 },
+ { 3, REGCACHE_MAP_SKIP, 4 }, /* nip, msr, orig_gpr3. */
+ { 1, PPC_CCTR_REGNUM, 4 },
+ { 1, PPC_CLR_REGNUM, 4 },
+ { 1, PPC_CXER_REGNUM, 4 },
+ { 1, PPC_CCR_REGNUM, 4 },
+ { 9, REGCACHE_MAP_SKIP, 4 }, /* All the rest. */
+ { 0 }
+ };
+
+static const struct regcache_map_entry ppc64_le_regmap_cgpr[] =
+ {
+ { 32, PPC_CR0_REGNUM, 8 },
+ { 3, REGCACHE_MAP_SKIP, 8 },
+ { 1, PPC_CCTR_REGNUM, 8 },
+ { 1, PPC_CLR_REGNUM, 8 },
+ { 1, PPC_CXER_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 4 }, /* CXER padding. */
+ { 1, PPC_CCR_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 4}, /* CCR padding. */
+ { 9, REGCACHE_MAP_SKIP, 8},
+ { 0 }
+ };
+
+static const struct regcache_map_entry ppc64_be_regmap_cgpr[] =
+ {
+ { 32, PPC_CR0_REGNUM, 8 },
+ { 3, REGCACHE_MAP_SKIP, 8 },
+ { 1, PPC_CCTR_REGNUM, 8 },
+ { 1, PPC_CLR_REGNUM, 8 },
+ { 1, REGCACHE_MAP_SKIP, 4}, /* CXER padding. */
+ { 1, PPC_CXER_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 4}, /* CCR padding. */
+ { 1, PPC_CCR_REGNUM, 4 },
+ { 9, REGCACHE_MAP_SKIP, 8},
+ { 0 }
+ };
+
+/* Regsets for the Hardware Transactional Memory checkpointed
+ general-purpose registers for 32-bit, 64-bit big-endian, and 64-bit
+ little endian targets.
+
+ Some 64-bit kernels generate a checkpointed gpr note section with
+ 48*8 bytes for a 32-bit thread, of which only 48*4 are actually
+ used, so we set the variable size flag in the corresponding regset
+ to accept this case. */
+
+static const struct regset ppc32_linux_cgprregset = {
+ ppc32_regmap_cgpr,
+ regcache_supply_regset,
+ regcache_collect_regset,
+ REGSET_VARIABLE_SIZE
+};
+
+static const struct regset ppc64_be_linux_cgprregset = {
+ ppc64_be_regmap_cgpr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+static const struct regset ppc64_le_linux_cgprregset = {
+ ppc64_le_regmap_cgpr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory checkpointed floating-point regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_cfpr[] =
+ {
+ { 32, PPC_CF0_REGNUM, 8 },
+ { 1, PPC_CFPSCR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed floating-point regset. */
+
+const struct regset ppc32_linux_cfprregset = {
+ ppc32_regmap_cfpr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Regmaps for the Hardware Transactional Memory checkpointed vector
+ regsets, for big and little endian targets. The position of the
+ 4-byte VSCR in its 16-byte field depends on the endianness. */
+
+static const struct regcache_map_entry ppc32_le_regmap_cvmx[] =
+ {
+ { 32, PPC_CVR0_REGNUM, 16 },
+ { 1, PPC_CVSCR_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 1, PPC_CVRSAVE_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 0 }
+ };
+
+static const struct regcache_map_entry ppc32_be_regmap_cvmx[] =
+ {
+ { 32, PPC_CVR0_REGNUM, 16 },
+ { 1, REGCACHE_MAP_SKIP, 12 },
+ { 1, PPC_CVSCR_REGNUM, 4 },
+ { 1, PPC_CVRSAVE_REGNUM, 4 },
+ { 1, REGCACHE_MAP_SKIP, 12},
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed vector regsets, for little
+ and big endian targets. */
+
+static const struct regset ppc32_le_linux_cvmxregset = {
+ ppc32_le_regmap_cvmx,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+static const struct regset ppc32_be_linux_cvmxregset = {
+ ppc32_be_regmap_cvmx,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory checkpointed vector-scalar regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_cvsx[] =
+ {
+ { 32, PPC_CVSR0_UPPER_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed vector-scalar regset. */
+
+const struct regset ppc32_linux_cvsxregset = {
+ ppc32_regmap_cvsx,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory checkpointed Program Priority Register
+ regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_cppr[] =
+ {
+ { 1, PPC_CPPR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed Program Priority Register
+ regset. */
+
+const struct regset ppc32_linux_cpprregset = {
+ ppc32_regmap_cppr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory checkpointed Data Stream Control
+ Register regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_cdscr[] =
+ {
+ { 1, PPC_CDSCR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed Data Stream Control
+ Register regset. */
+
+const struct regset ppc32_linux_cdscrregset = {
+ ppc32_regmap_cdscr,
+ regcache_supply_regset,
+ regcache_collect_regset
+};
+
+/* Hardware Transactional Memory checkpointed Target Address Register
+ regmap. */
+
+static const struct regcache_map_entry ppc32_regmap_ctar[] =
+ {
+ { 1, PPC_CTAR_REGNUM, 8 },
+ { 0 }
+ };
+
+/* Hardware Transactional Memory checkpointed Target Address Register
+ regset. */
+
+const struct regset ppc32_linux_ctarregset = {
+ ppc32_regmap_ctar,
+ regcache_supply_regset,
+ regcache_collect_regset
};
const struct regset *
return &ppc32_linux_fpregset;
}
+const struct regset *
+ppc_linux_vrregset (struct gdbarch *gdbarch)
+{
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ return &ppc32_be_linux_vrregset;
+ else
+ return &ppc32_le_linux_vrregset;
+}
+
+const struct regset *
+ppc_linux_vsxregset (void)
+{
+ return &ppc32_linux_vsxregset;
+}
+
+const struct regset *
+ppc_linux_cgprregset (struct gdbarch *gdbarch)
+{
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
+
+ if (tdep->wordsize == 4)
+ {
+ return &ppc32_linux_cgprregset;
+ }
+ else
+ {
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ return &ppc64_be_linux_cgprregset;
+ else
+ return &ppc64_le_linux_cgprregset;
+ }
+}
+
+const struct regset *
+ppc_linux_cvmxregset (struct gdbarch *gdbarch)
+{
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ return &ppc32_be_linux_cvmxregset;
+ else
+ return &ppc32_le_linux_cvmxregset;
+}
+
+/* Collect function used to generate the core note for the
+ checkpointed GPR regset. Here, we don't want to skip the
+ "checkpointed" NIP and MSR, so that the note section we generate is
+ similar to the one generated by the kernel. To avoid having to
+ define additional registers in GDB which are not actually
+ checkpointed in the architecture, we copy TFHAR to the checkpointed
+ NIP slot, which is what the kernel does, and copy the regular MSR
+ to the checkpointed MSR slot, which will have a similar value in
+ most cases. */
+
+static void
+ppc_linux_collect_core_cpgrregset (const struct regset *regset,
+ const struct regcache *regcache,
+ int regnum, void *buf, size_t len)
+{
+ struct gdbarch *gdbarch = regcache->arch ();
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
+
+ const struct regset *cgprregset = ppc_linux_cgprregset (gdbarch);
+
+ /* We collect the checkpointed GPRs already defined in the regular
+ regmap, then overlay TFHAR/MSR on the checkpointed NIP/MSR
+ slots. */
+ cgprregset->collect_regset (cgprregset, regcache, regnum, buf, len);
+
+ /* Check that we are collecting all the registers, which should be
+ the case when generating a core file. */
+ if (regnum != -1)
+ return;
+
+ /* PT_NIP and PT_MSR are 32 and 33 for powerpc. Don't redefine
+ these symbols since this file can run on clients in other
+ architectures where they can already be defined to other
+ values. */
+ int pt_offset = 32;
+
+ /* Check that our buffer is long enough to hold two slots at
+ pt_offset * wordsize, one for NIP and one for MSR. */
+ gdb_assert ((pt_offset + 2) * tdep->wordsize <= len);
+
+ /* TFHAR is 8 bytes wide, but the NIP slot for a 32-bit thread is
+ 4-bytes long. We use raw_collect_integer which handles
+ differences in the sizes for the source and destination buffers
+ for both endian modes. */
+ (regcache->raw_collect_integer
+ (PPC_TFHAR_REGNUM, ((gdb_byte *) buf) + pt_offset * tdep->wordsize,
+ tdep->wordsize, false));
+
+ pt_offset = 33;
+
+ (regcache->raw_collect_integer
+ (PPC_MSR_REGNUM, ((gdb_byte *) buf) + pt_offset * tdep->wordsize,
+ tdep->wordsize, false));
+}
+
/* Iterate over supported core file register note sections. */
static void
void *cb_data,
const struct regcache *regcache)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
int have_altivec = tdep->ppc_vr0_regnum != -1;
int have_vsx = tdep->ppc_vsr0_upper_regnum != -1;
+ int have_ppr = tdep->ppc_ppr_regnum != -1;
+ int have_dscr = tdep->ppc_dscr_regnum != -1;
+ int have_tar = tdep->ppc_tar_regnum != -1;
if (tdep->wordsize == 4)
- cb (".reg", 48 * 4, &ppc32_linux_gregset, NULL, cb_data);
+ cb (".reg", 48 * 4, 48 * 4, &ppc32_linux_gregset, NULL, cb_data);
else
- cb (".reg", 48 * 8, &ppc64_linux_gregset, NULL, cb_data);
+ cb (".reg", 48 * 8, 48 * 8, &ppc64_linux_gregset, NULL, cb_data);
- cb (".reg2", 264, &ppc32_linux_fpregset, NULL, cb_data);
+ cb (".reg2", 264, 264, &ppc32_linux_fpregset, NULL, cb_data);
if (have_altivec)
- cb (".reg-ppc-vmx", 544, &ppc32_linux_vrregset, "ppc Altivec", cb_data);
+ {
+ const struct regset *vrregset = ppc_linux_vrregset (gdbarch);
+ cb (".reg-ppc-vmx", PPC_LINUX_SIZEOF_VRREGSET, PPC_LINUX_SIZEOF_VRREGSET,
+ vrregset, "ppc Altivec", cb_data);
+ }
if (have_vsx)
- cb (".reg-ppc-vsx", 256, &ppc32_linux_vsxregset, "POWER7 VSX", cb_data);
+ cb (".reg-ppc-vsx", PPC_LINUX_SIZEOF_VSXREGSET, PPC_LINUX_SIZEOF_VSXREGSET,
+ &ppc32_linux_vsxregset, "POWER7 VSX", cb_data);
+
+ if (have_ppr)
+ cb (".reg-ppc-ppr", PPC_LINUX_SIZEOF_PPRREGSET,
+ PPC_LINUX_SIZEOF_PPRREGSET,
+ &ppc32_linux_pprregset, "Priority Program Register", cb_data);
+
+ if (have_dscr)
+ cb (".reg-ppc-dscr", PPC_LINUX_SIZEOF_DSCRREGSET,
+ PPC_LINUX_SIZEOF_DSCRREGSET,
+ &ppc32_linux_dscrregset, "Data Stream Control Register",
+ cb_data);
+
+ if (have_tar)
+ cb (".reg-ppc-tar", PPC_LINUX_SIZEOF_TARREGSET,
+ PPC_LINUX_SIZEOF_TARREGSET,
+ &ppc32_linux_tarregset, "Target Address Register", cb_data);
+
+ /* EBB registers are unavailable when ptrace returns ENODATA. Check
+ availability when generating a core file (regcache != NULL). */
+ if (tdep->have_ebb)
+ if (regcache == NULL
+ || REG_VALID == regcache->get_register_status (PPC_BESCR_REGNUM))
+ cb (".reg-ppc-ebb", PPC_LINUX_SIZEOF_EBBREGSET,
+ PPC_LINUX_SIZEOF_EBBREGSET,
+ &ppc32_linux_ebbregset, "Event-based Branching Registers",
+ cb_data);
+
+ if (tdep->ppc_mmcr0_regnum != -1)
+ cb (".reg-ppc-pmu", PPC_LINUX_SIZEOF_PMUREGSET,
+ PPC_LINUX_SIZEOF_PMUREGSET,
+ &ppc32_linux_pmuregset, "Performance Monitor Registers",
+ cb_data);
+
+ if (tdep->have_htm_spr)
+ cb (".reg-ppc-tm-spr", PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ PPC_LINUX_SIZEOF_TM_SPRREGSET,
+ &ppc32_linux_tm_sprregset,
+ "Hardware Transactional Memory Special Purpose Registers",
+ cb_data);
+
+ /* Checkpointed registers can be unavailable, don't call back if
+ we are generating a core file. */
+
+ if (tdep->have_htm_core)
+ {
+ /* Only generate the checkpointed GPR core note if we also have
+ access to the HTM SPRs, because we need TFHAR to fill the
+ "checkpointed" NIP slot. We can read a core file without it
+ since GDB is not aware of this NIP as a visible register. */
+ if (regcache == NULL ||
+ (REG_VALID == regcache->get_register_status (PPC_CR0_REGNUM)
+ && tdep->have_htm_spr))
+ {
+ int cgpr_size = (tdep->wordsize == 4?
+ PPC32_LINUX_SIZEOF_CGPRREGSET
+ : PPC64_LINUX_SIZEOF_CGPRREGSET);
+
+ const struct regset *cgprregset =
+ ppc_linux_cgprregset (gdbarch);
+
+ if (regcache != NULL)
+ {
+ struct regset core_cgprregset = *cgprregset;
+
+ core_cgprregset.collect_regset
+ = ppc_linux_collect_core_cpgrregset;
+
+ cb (".reg-ppc-tm-cgpr",
+ cgpr_size, cgpr_size,
+ &core_cgprregset,
+ "Checkpointed General Purpose Registers", cb_data);
+ }
+ else
+ {
+ cb (".reg-ppc-tm-cgpr",
+ cgpr_size, cgpr_size,
+ cgprregset,
+ "Checkpointed General Purpose Registers", cb_data);
+ }
+ }
+ }
+
+ if (tdep->have_htm_fpu)
+ {
+ if (regcache == NULL ||
+ REG_VALID == regcache->get_register_status (PPC_CF0_REGNUM))
+ cb (".reg-ppc-tm-cfpr", PPC_LINUX_SIZEOF_CFPRREGSET,
+ PPC_LINUX_SIZEOF_CFPRREGSET,
+ &ppc32_linux_cfprregset,
+ "Checkpointed Floating Point Registers", cb_data);
+ }
+
+ if (tdep->have_htm_altivec)
+ {
+ if (regcache == NULL ||
+ REG_VALID == regcache->get_register_status (PPC_CVR0_REGNUM))
+ {
+ const struct regset *cvmxregset =
+ ppc_linux_cvmxregset (gdbarch);
+
+ cb (".reg-ppc-tm-cvmx", PPC_LINUX_SIZEOF_CVMXREGSET,
+ PPC_LINUX_SIZEOF_CVMXREGSET,
+ cvmxregset,
+ "Checkpointed Altivec (VMX) Registers", cb_data);
+ }
+ }
+
+ if (tdep->have_htm_vsx)
+ {
+ if (regcache == NULL ||
+ (REG_VALID
+ == regcache->get_register_status (PPC_CVSR0_UPPER_REGNUM)))
+ cb (".reg-ppc-tm-cvsx", PPC_LINUX_SIZEOF_CVSXREGSET,
+ PPC_LINUX_SIZEOF_CVSXREGSET,
+ &ppc32_linux_cvsxregset,
+ "Checkpointed VSX Registers", cb_data);
+ }
+
+ if (tdep->ppc_cppr_regnum != -1)
+ {
+ if (regcache == NULL ||
+ REG_VALID == regcache->get_register_status (PPC_CPPR_REGNUM))
+ cb (".reg-ppc-tm-cppr", PPC_LINUX_SIZEOF_CPPRREGSET,
+ PPC_LINUX_SIZEOF_CPPRREGSET,
+ &ppc32_linux_cpprregset,
+ "Checkpointed Priority Program Register", cb_data);
+ }
+
+ if (tdep->ppc_cdscr_regnum != -1)
+ {
+ if (regcache == NULL ||
+ REG_VALID == regcache->get_register_status (PPC_CDSCR_REGNUM))
+ cb (".reg-ppc-tm-cdscr", PPC_LINUX_SIZEOF_CDSCRREGSET,
+ PPC_LINUX_SIZEOF_CDSCRREGSET,
+ &ppc32_linux_cdscrregset,
+ "Checkpointed Data Stream Control Register", cb_data);
+ }
+
+ if (tdep->ppc_ctar_regnum)
+ {
+ if ( regcache == NULL ||
+ REG_VALID == regcache->get_register_status (PPC_CTAR_REGNUM))
+ cb (".reg-ppc-tm-ctar", PPC_LINUX_SIZEOF_CTARREGSET,
+ PPC_LINUX_SIZEOF_CTARREGSET,
+ &ppc32_linux_ctarregset,
+ "Checkpointed Target Address Register", cb_data);
+ }
}
static void
-ppc_linux_sigtramp_cache (struct frame_info *this_frame,
+ppc_linux_sigtramp_cache (frame_info_ptr this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func, LONGEST offset,
int bias)
CORE_ADDR fpregs;
int i;
struct gdbarch *gdbarch = get_frame_arch (this_frame);
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
base = get_frame_register_unsigned (this_frame,
fpregs + i * tdep->wordsize);
}
trad_frame_set_reg_addr (this_cache, tdep->ppc_fpscr_regnum,
- fpregs + 32 * tdep->wordsize);
+ fpregs + 32 * tdep->wordsize);
}
trad_frame_set_id (this_cache, frame_id_build (base, func));
}
static void
ppc32_linux_sigaction_cache_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
+ frame_info_ptr this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
static void
ppc64_linux_sigaction_cache_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
+ frame_info_ptr this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
static void
ppc32_linux_sighandler_cache_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
+ frame_info_ptr this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
static void
ppc64_linux_sighandler_cache_init (const struct tramp_frame *self,
- struct frame_info *this_frame,
+ frame_info_ptr this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
SIGTRAMP_FRAME,
4,
{
- { 0x380000ac, -1 }, /* li r0, 172 */
- { 0x44000002, -1 }, /* sc */
+ { 0x380000ac, ULONGEST_MAX }, /* li r0, 172 */
+ { 0x44000002, ULONGEST_MAX }, /* sc */
{ TRAMP_SENTINEL_INSN },
},
ppc32_linux_sigaction_cache_init
SIGTRAMP_FRAME,
4,
{
- { 0x38210080, -1 }, /* addi r1,r1,128 */
- { 0x380000ac, -1 }, /* li r0, 172 */
- { 0x44000002, -1 }, /* sc */
+ { 0x38210080, ULONGEST_MAX }, /* addi r1,r1,128 */
+ { 0x380000ac, ULONGEST_MAX }, /* li r0, 172 */
+ { 0x44000002, ULONGEST_MAX }, /* sc */
{ TRAMP_SENTINEL_INSN },
},
ppc64_linux_sigaction_cache_init
SIGTRAMP_FRAME,
4,
{
- { 0x38000077, -1 }, /* li r0,119 */
- { 0x44000002, -1 }, /* sc */
+ { 0x38000077, ULONGEST_MAX }, /* li r0,119 */
+ { 0x44000002, ULONGEST_MAX }, /* sc */
{ TRAMP_SENTINEL_INSN },
},
ppc32_linux_sighandler_cache_init
SIGTRAMP_FRAME,
4,
{
- { 0x38210080, -1 }, /* addi r1,r1,128 */
- { 0x38000077, -1 }, /* li r0,119 */
- { 0x44000002, -1 }, /* sc */
+ { 0x38210080, ULONGEST_MAX }, /* addi r1,r1,128 */
+ { 0x38000077, ULONGEST_MAX }, /* li r0,119 */
+ { 0x44000002, ULONGEST_MAX }, /* sc */
{ TRAMP_SENTINEL_INSN },
},
ppc64_linux_sighandler_cache_init
/* If we do, then it is safe to check the size. */
return register_size (gdbarch, PPC_ORIG_R3_REGNUM) > 0
- && register_size (gdbarch, PPC_TRAP_REGNUM) > 0;
+ && register_size (gdbarch, PPC_TRAP_REGNUM) > 0;
}
/* Return the current system call's number present in the
r0 register. When the function fails, it returns -1. */
static LONGEST
ppc_linux_get_syscall_number (struct gdbarch *gdbarch,
- ptid_t ptid)
+ thread_info *thread)
{
- struct regcache *regcache = get_thread_regcache (ptid);
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ struct regcache *regcache = get_thread_regcache (thread);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* Make sure we're in a 32- or 64-bit machine */
/* Getting the system call number from the register.
When dealing with PowerPC architecture, this information
is stored at 0th register. */
- regcache_cooked_read (regcache, tdep->ppc_gp0_regnum, buf.data ());
+ regcache->cooked_read (tdep->ppc_gp0_regnum, buf.data ());
return extract_signed_integer (buf.data (), tdep->wordsize, byte_order);
}
syscall ids into a canonical set of syscall ids used by process
record. (See arch/powerpc/include/uapi/asm/unistd.h in kernel tree.)
Return -1 if this system call is not supported by process record.
- Otherwise, return the syscall number for preocess reocrd of given
+ Otherwise, return the syscall number for process record of given
SYSCALL. */
static enum gdb_syscall
-ppc_canonicalize_syscall (int syscall)
+ppc_canonicalize_syscall (int syscall, int wordsize)
{
int result = -1;
result = syscall += 259 - 240;
else if (syscall >= 250 && syscall <= 251) /* tgkill */
result = syscall + 270 - 250;
+ else if (syscall == 286)
+ result = gdb_sys_openat;
+ else if (syscall == 291)
+ {
+ if (wordsize == 64)
+ result = gdb_sys_newfstatat;
+ else
+ result = gdb_sys_fstatat64;
+ }
+ else if (syscall == 317)
+ result = gdb_sys_pipe2;
else if (syscall == 336)
result = gdb_sys_recv;
else if (syscall == 337)
result = gdb_sys_recvfrom;
else if (syscall == 342)
result = gdb_sys_recvmsg;
+ else if (syscall == 359)
+ result = gdb_sys_getrandom;
return (enum gdb_syscall) result;
}
ppc_linux_syscall_record (struct regcache *regcache)
{
struct gdbarch *gdbarch = regcache->arch ();
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
ULONGEST scnum;
enum gdb_syscall syscall_gdb;
int ret;
- int i;
regcache_raw_read_unsigned (regcache, tdep->ppc_gp0_regnum, &scnum);
- syscall_gdb = ppc_canonicalize_syscall (scnum);
+ syscall_gdb = ppc_canonicalize_syscall (scnum, tdep->wordsize);
if (syscall_gdb < 0)
{
- printf_unfiltered (_("Process record and replay target doesn't "
- "support syscall number %d\n"), (int) scnum);
+ gdb_printf (gdb_stderr,
+ _("Process record and replay target doesn't "
+ "support syscall number %d\n"), (int) scnum);
return 0;
}
return ret;
/* Record registers clobbered during syscall. */
- for (i = 3; i <= 12; i++)
+ for (int i = 3; i <= 12; i++)
{
if (record_full_arch_list_add_reg (regcache, tdep->ppc_gp0_regnum + i))
return -1;
const int SIGNAL_FRAMESIZE = 128;
const int sizeof_rt_sigframe = 1440 * 2 + 8 * 2 + 4 * 6 + 8 + 8 + 128 + 512;
ULONGEST sp;
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
int i;
for (i = 3; i <= 12; i++)
regcache_cooked_write_unsigned (regcache, PPC_TRAP_REGNUM, -1);
}
-static int
-ppc_linux_spu_section (bfd *abfd, asection *asect, void *user_data)
-{
- return startswith (bfd_section_name (abfd, asect), "SPU/");
-}
-
static const struct target_desc *
ppc_linux_core_read_description (struct gdbarch *gdbarch,
struct target_ops *target,
bfd *abfd)
{
- asection *cell = bfd_sections_find_if (abfd, ppc_linux_spu_section, NULL);
+ struct ppc_linux_features features = ppc_linux_no_features;
asection *altivec = bfd_get_section_by_name (abfd, ".reg-ppc-vmx");
asection *vsx = bfd_get_section_by_name (abfd, ".reg-ppc-vsx");
asection *section = bfd_get_section_by_name (abfd, ".reg");
+ asection *ppr = bfd_get_section_by_name (abfd, ".reg-ppc-ppr");
+ asection *dscr = bfd_get_section_by_name (abfd, ".reg-ppc-dscr");
+ asection *tar = bfd_get_section_by_name (abfd, ".reg-ppc-tar");
+ asection *pmu = bfd_get_section_by_name (abfd, ".reg-ppc-pmu");
+ asection *htmspr = bfd_get_section_by_name (abfd, ".reg-ppc-tm-spr");
+
if (! section)
return NULL;
- switch (bfd_section_size (abfd, section))
+ switch (bfd_section_size (section))
{
case 48 * 4:
- if (cell)
- return tdesc_powerpc_cell32l;
- else if (vsx)
- return tdesc_powerpc_vsx32l;
- else if (altivec)
- return tdesc_powerpc_altivec32l;
- else
- return tdesc_powerpc_32l;
-
+ features.wordsize = 4;
+ break;
case 48 * 8:
- if (cell)
- return tdesc_powerpc_cell64l;
- else if (vsx)
- return tdesc_powerpc_vsx64l;
- else if (altivec)
- return tdesc_powerpc_altivec64l;
- else
- return tdesc_powerpc_64l;
-
+ features.wordsize = 8;
+ break;
default:
return NULL;
}
+
+ if (altivec)
+ features.altivec = true;
+
+ if (vsx)
+ features.vsx = true;
+
+ gdb::optional<gdb::byte_vector> auxv = target_read_auxv_raw (target);
+ CORE_ADDR hwcap = linux_get_hwcap (auxv, target, gdbarch);
+
+ features.isa205 = ppc_linux_has_isa205 (hwcap);
+
+ if (ppr && dscr)
+ {
+ features.ppr_dscr = true;
+
+ /* We don't require the EBB note section to be present in the
+ core file to select isa207 because these registers could have
+ been unavailable when the core file was created. They will
+ be in the tdep but will show as unavailable. */
+ if (tar && pmu)
+ {
+ features.isa207 = true;
+ if (htmspr)
+ features.htm = true;
+ }
+ }
+
+ return ppc_linux_match_description (features);
}
static void
ppc_elfv2_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
{
+ if ((sym->flags & BSF_SYNTHETIC) != 0)
+ /* ELFv2 synthetic symbols (the PLT stubs and the __glink_PLTresolve
+ trampoline) do not have a local entry point. */
+ return;
+
elf_symbol_type *elf_sym = (elf_symbol_type *)sym;
/* If the symbol is marked as having a local entry point, set a target
default:
break;
case 8:
- MSYMBOL_TARGET_FLAG_1 (msym) = 1;
+ msym->set_target_flag_1 (true);
break;
}
}
/* See ppc_elfv2_elf_make_msymbol_special for how local entry point
offset values are encoded. */
- if (MSYMBOL_TARGET_FLAG_1 (fun.minsym))
+ if (fun.minsym->target_flag_1 ())
local_entry_offset = 8;
- if (BMSYMBOL_VALUE_ADDRESS (fun) <= pc
- && pc < BMSYMBOL_VALUE_ADDRESS (fun) + local_entry_offset)
- return BMSYMBOL_VALUE_ADDRESS (fun) + local_entry_offset;
+ if (fun.value_address () <= pc
+ && pc < fun.value_address () + local_entry_offset)
+ return fun.value_address () + local_entry_offset;
return pc;
}
/* Implementation of `gdbarch_stap_parse_special_token', as defined in
gdbarch.h. */
-static int
+static expr::operation_up
ppc_stap_parse_special_token (struct gdbarch *gdbarch,
struct stap_parse_info *p)
{
const char *s = p->arg;
char *regname;
int len;
- struct stoken str;
while (isdigit (*s))
++s;
{
/* It is a register displacement indeed. Returning 0 means we are
deferring the treatment of this case to the generic parser. */
- return 0;
+ return {};
}
len = s - p->arg;
error (_("Invalid register name `%s' on expression `%s'."),
regname, p->saved_arg);
- write_exp_elt_opcode (&p->pstate, OP_REGISTER);
- str.ptr = regname;
- str.length = len;
- write_exp_string (&p->pstate, str);
- write_exp_elt_opcode (&p->pstate, OP_REGISTER);
-
p->arg = s;
- }
- else
- {
- /* All the other tokens should be handled correctly by the generic
- parser. */
- return 0;
- }
-
- return 1;
-}
-
-/* Cell/B.E. active SPE context tracking support. */
-
-static struct objfile *spe_context_objfile = NULL;
-static CORE_ADDR spe_context_lm_addr = 0;
-static CORE_ADDR spe_context_offset = 0;
-
-static ptid_t spe_context_cache_ptid;
-static CORE_ADDR spe_context_cache_address;
-
-/* Hook into inferior_created, solib_loaded, and solib_unloaded observers
- to track whether we've loaded a version of libspe2 (as static or dynamic
- library) that provides the __spe_current_active_context variable. */
-static void
-ppc_linux_spe_context_lookup (struct objfile *objfile)
-{
- struct bound_minimal_symbol sym;
-
- if (!objfile)
- {
- spe_context_objfile = NULL;
- spe_context_lm_addr = 0;
- spe_context_offset = 0;
- spe_context_cache_ptid = minus_one_ptid;
- spe_context_cache_address = 0;
- return;
- }
-
- sym = lookup_minimal_symbol ("__spe_current_active_context", NULL, objfile);
- if (sym.minsym)
- {
- spe_context_objfile = objfile;
- spe_context_lm_addr = svr4_fetch_objfile_link_map (objfile);
- spe_context_offset = MSYMBOL_VALUE_RAW_ADDRESS (sym.minsym);
- spe_context_cache_ptid = minus_one_ptid;
- spe_context_cache_address = 0;
- return;
- }
-}
-
-static void
-ppc_linux_spe_context_inferior_created (struct target_ops *t, int from_tty)
-{
- struct objfile *objfile;
-
- ppc_linux_spe_context_lookup (NULL);
- ALL_OBJFILES (objfile)
- ppc_linux_spe_context_lookup (objfile);
-}
-
-static void
-ppc_linux_spe_context_solib_loaded (struct so_list *so)
-{
- if (strstr (so->so_original_name, "/libspe") != NULL)
- {
- solib_read_symbols (so, 0);
- ppc_linux_spe_context_lookup (so->objfile);
- }
-}
-
-static void
-ppc_linux_spe_context_solib_unloaded (struct so_list *so)
-{
- if (so->objfile == spe_context_objfile)
- ppc_linux_spe_context_lookup (NULL);
-}
-
-/* Retrieve contents of the N'th element in the current thread's
- linked SPE context list into ID and NPC. Return the address of
- said context element, or 0 if not found. */
-static CORE_ADDR
-ppc_linux_spe_context (int wordsize, enum bfd_endian byte_order,
- int n, int *id, unsigned int *npc)
-{
- CORE_ADDR spe_context = 0;
- gdb_byte buf[16];
- int i;
-
- /* Quick exit if we have not found __spe_current_active_context. */
- if (!spe_context_objfile)
- return 0;
-
- /* Look up cached address of thread-local variable. */
- if (!ptid_equal (spe_context_cache_ptid, inferior_ptid))
- {
- struct target_ops *target = target_stack;
-
- TRY
- {
- /* We do not call target_translate_tls_address here, because
- svr4_fetch_objfile_link_map may invalidate the frame chain,
- which must not do while inside a frame sniffer.
-
- Instead, we have cached the lm_addr value, and use that to
- directly call the target's to_get_thread_local_address. */
- spe_context_cache_address
- = target->get_thread_local_address (inferior_ptid,
- spe_context_lm_addr,
- spe_context_offset);
- spe_context_cache_ptid = inferior_ptid;
- }
-
- CATCH (ex, RETURN_MASK_ERROR)
- {
- return 0;
- }
- END_CATCH
- }
- /* Read variable value. */
- if (target_read_memory (spe_context_cache_address, buf, wordsize) == 0)
- spe_context = extract_unsigned_integer (buf, wordsize, byte_order);
-
- /* Cyle through to N'th linked list element. */
- for (i = 0; i < n && spe_context; i++)
- if (target_read_memory (spe_context + align_up (12, wordsize),
- buf, wordsize) == 0)
- spe_context = extract_unsigned_integer (buf, wordsize, byte_order);
- else
- spe_context = 0;
-
- /* Read current context. */
- if (spe_context
- && target_read_memory (spe_context, buf, 12) != 0)
- spe_context = 0;
-
- /* Extract data elements. */
- if (spe_context)
- {
- if (id)
- *id = extract_signed_integer (buf, 4, byte_order);
- if (npc)
- *npc = extract_unsigned_integer (buf + 4, 4, byte_order);
+ return expr::make_operation<expr::register_operation> (regname);
}
- return spe_context;
-}
-
-
-/* Cell/B.E. cross-architecture unwinder support. */
-
-struct ppu2spu_cache
-{
- struct frame_id frame_id;
- readonly_detached_regcache *regcache;
-};
-
-static struct gdbarch *
-ppu2spu_prev_arch (struct frame_info *this_frame, void **this_cache)
-{
- struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache;
- return cache->regcache->arch ();
+ /* All the other tokens should be handled correctly by the generic
+ parser. */
+ return {};
}
-static void
-ppu2spu_this_id (struct frame_info *this_frame,
- void **this_cache, struct frame_id *this_id)
-{
- struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache;
- *this_id = cache->frame_id;
-}
-
-static struct value *
-ppu2spu_prev_register (struct frame_info *this_frame,
- void **this_cache, int regnum)
-{
- struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache;
- struct gdbarch *gdbarch = cache->regcache->arch ();
- gdb_byte *buf;
-
- buf = (gdb_byte *) alloca (register_size (gdbarch, regnum));
-
- cache->regcache->cooked_read (regnum, buf);
- return frame_unwind_got_bytes (this_frame, regnum, buf);
-}
-
-struct ppu2spu_data
-{
- struct gdbarch *gdbarch;
- int id;
- unsigned int npc;
- gdb_byte gprs[128*16];
-};
-
-static enum register_status
-ppu2spu_unwind_register (void *src, int regnum, gdb_byte *buf)
-{
- struct ppu2spu_data *data = (struct ppu2spu_data *) src;
- enum bfd_endian byte_order = gdbarch_byte_order (data->gdbarch);
-
- if (regnum >= 0 && regnum < SPU_NUM_GPRS)
- memcpy (buf, data->gprs + 16*regnum, 16);
- else if (regnum == SPU_ID_REGNUM)
- store_unsigned_integer (buf, 4, byte_order, data->id);
- else if (regnum == SPU_PC_REGNUM)
- store_unsigned_integer (buf, 4, byte_order, data->npc);
- else
- return REG_UNAVAILABLE;
-
- return REG_VALID;
-}
-
-static int
-ppu2spu_sniffer (const struct frame_unwind *self,
- struct frame_info *this_frame, void **this_prologue_cache)
-{
- struct gdbarch *gdbarch = get_frame_arch (this_frame);
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- struct ppu2spu_data data;
- struct frame_info *fi;
- CORE_ADDR base, func, backchain, spe_context;
- gdb_byte buf[8];
- int n = 0;
-
- /* Count the number of SPU contexts already in the frame chain. */
- for (fi = get_next_frame (this_frame); fi; fi = get_next_frame (fi))
- if (get_frame_type (fi) == ARCH_FRAME
- && gdbarch_bfd_arch_info (get_frame_arch (fi))->arch == bfd_arch_spu)
- n++;
-
- base = get_frame_sp (this_frame);
- func = get_frame_pc (this_frame);
- if (target_read_memory (base, buf, tdep->wordsize))
- return 0;
- backchain = extract_unsigned_integer (buf, tdep->wordsize, byte_order);
-
- spe_context = ppc_linux_spe_context (tdep->wordsize, byte_order,
- n, &data.id, &data.npc);
- if (spe_context && base <= spe_context && spe_context < backchain)
- {
- char annex[32];
-
- /* Find gdbarch for SPU. */
- struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.bfd_arch_info = bfd_lookup_arch (bfd_arch_spu, bfd_mach_spu);
- info.byte_order = BFD_ENDIAN_BIG;
- info.osabi = GDB_OSABI_LINUX;
- info.id = &data.id;
- data.gdbarch = gdbarch_find_by_info (info);
- if (!data.gdbarch)
- return 0;
-
- xsnprintf (annex, sizeof annex, "%d/regs", data.id);
- if (target_read (target_stack, TARGET_OBJECT_SPU, annex,
- data.gprs, 0, sizeof data.gprs)
- == sizeof data.gprs)
- {
- struct ppu2spu_cache *cache
- = FRAME_OBSTACK_CALLOC (1, struct ppu2spu_cache);
- std::unique_ptr<readonly_detached_regcache> regcache
- (new readonly_detached_regcache (data.gdbarch,
- ppu2spu_unwind_register,
- &data));
-
- cache->frame_id = frame_id_build (base, func);
- cache->regcache = regcache.release ();
- *this_prologue_cache = cache;
- return 1;
- }
- }
-
- return 0;
-}
-
-static void
-ppu2spu_dealloc_cache (struct frame_info *self, void *this_cache)
-{
- struct ppu2spu_cache *cache = (struct ppu2spu_cache *) this_cache;
- delete cache->regcache;
-}
-
-static const struct frame_unwind ppu2spu_unwind = {
- ARCH_FRAME,
- default_frame_unwind_stop_reason,
- ppu2spu_this_id,
- ppu2spu_prev_register,
- NULL,
- ppu2spu_sniffer,
- ppu2spu_dealloc_cache,
- ppu2spu_prev_arch,
-};
-
/* Initialize linux_record_tdep if not initialized yet.
WORDSIZE is 4 or 8 for 32- or 64-bit PowerPC Linux respectively.
Sizes of data structures are initialized accordingly. */
ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
int wordsize)
{
+ /* The values for TCGETS, TCSETS, TCSETSW, TCSETSF are based on the
+ size of struct termios in the kernel source.
+ include/uapi/asm-generic/termbits.h */
+#define SIZE_OF_STRUCT_TERMIOS 0x2c
+
/* Simply return if it had been initialized. */
if (record_tdep->size_pointer != 0)
return;
record_tdep->size_time_t = 4;
}
else
- internal_error (__FILE__, __LINE__, _("unexpected wordsize"));
+ internal_error (_("unexpected wordsize"));
/* These values are the second argument of system call "sys_fcntl"
and "sys_fcntl64". They are obtained from Linux Kernel source. */
/* These values are the second argument of system call "sys_ioctl".
They are obtained from Linux Kernel source.
See arch/powerpc/include/uapi/asm/ioctls.h. */
- record_tdep->ioctl_TCGETS = 0x403c7413;
- record_tdep->ioctl_TCSETS = 0x803c7414;
- record_tdep->ioctl_TCSETSW = 0x803c7415;
- record_tdep->ioctl_TCSETSF = 0x803c7416;
record_tdep->ioctl_TCGETA = 0x40147417;
record_tdep->ioctl_TCSETA = 0x80147418;
record_tdep->ioctl_TCSETAW = 0x80147419;
record_tdep->ioctl_TCSETAF = 0x8014741c;
+ record_tdep->ioctl_TCGETS = 0x40007413 | (SIZE_OF_STRUCT_TERMIOS << 16);
+ record_tdep->ioctl_TCSETS = 0x80007414 | (SIZE_OF_STRUCT_TERMIOS << 16);
+ record_tdep->ioctl_TCSETSW = 0x80007415 | (SIZE_OF_STRUCT_TERMIOS << 16);
+ record_tdep->ioctl_TCSETSF = 0x80007416 | (SIZE_OF_STRUCT_TERMIOS << 16);
+
record_tdep->ioctl_TCSBRK = 0x2000741d;
record_tdep->ioctl_TCXONC = 0x2000741e;
record_tdep->ioctl_TCFLSH = 0x2000741f;
length LEN in bits. If non-NULL, NAME is the name of its type.
If no suitable type is found, return NULL. */
-const struct floatformat **
+static const struct floatformat **
ppc_floatformat_for_type (struct gdbarch *gdbarch,
- const char *name, int len)
+ const char *name, int len)
{
if (len == 128 && name)
{
|| strcmp (name, "_Float64x") == 0
|| strcmp (name, "complex _Float128") == 0
|| strcmp (name, "complex _Float64x") == 0)
- return floatformats_ia64_quad;
+ return floatformats_ieee_quad;
if (strcmp (name, "__ibm128") == 0)
return floatformats_ibm_long_double;
return default_floatformat_for_type (gdbarch, name, len);
}
+static bool
+linux_dwarf2_omit_typedef_p (struct type *target_type,
+ const char *producer, const char *name)
+{
+ int gcc_major, gcc_minor;
+
+ if (producer_is_gcc (producer, &gcc_major, &gcc_minor))
+ {
+ if ((target_type->code () == TYPE_CODE_FLT
+ || target_type->code () == TYPE_CODE_COMPLEX)
+ && (strcmp (name, "long double") == 0
+ || strcmp (name, "complex long double") == 0))
+ {
+ /* IEEE 128-bit floating point and IBM long double are two
+ encodings for 128-bit values. The DWARF debug data can't
+ distinguish between them. See bugzilla:
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104194
+
+ A GCC hack was introduced to still allow the debugger to identify
+ the case where "long double" uses the IEEE 128-bit floating point
+ format: GCC will emit a bogus DWARF type record pretending that
+ "long double" is a typedef alias for the _Float128 type.
+
+ This hack should not be visible to the GDB user, so we replace
+ this bogus typedef by a normal floating-point type, copying the
+ format information from the target type of the bogus typedef. */
+ return true;
+ }
+ }
+ return false;
+}
+
+/* Specify the powerpc64le target triplet.
+ This can be variations of
+ ppc64le-{distro}-linux-gcc
+ and
+ powerpc64le-{distro}-linux-gcc. */
+
+static const char *
+ppc64le_gnu_triplet_regexp (struct gdbarch *gdbarch)
+{
+ return "p(ower)?pc64le";
+}
+
+/* Specify the powerpc64 target triplet.
+ This can be variations of
+ ppc64-{distro}-linux-gcc
+ and
+ powerpc64-{distro}-linux-gcc. */
+
+static const char *
+ppc64_gnu_triplet_regexp (struct gdbarch *gdbarch)
+{
+ return "p(ower)?pc64";
+}
+
+/* Implement the linux_gcc_target_options method. */
+
+static std::string
+ppc64_linux_gcc_target_options (struct gdbarch *gdbarch)
+{
+ return "";
+}
+
+static displaced_step_prepare_status
+ppc_linux_displaced_step_prepare (gdbarch *arch, thread_info *thread,
+ CORE_ADDR &displaced_pc)
+{
+ ppc_inferior_data *per_inferior = get_ppc_per_inferior (thread->inf);
+ if (!per_inferior->disp_step_buf.has_value ())
+ {
+ /* Figure out where the displaced step buffer is. */
+ CORE_ADDR disp_step_buf_addr
+ = linux_displaced_step_location (thread->inf->gdbarch);
+
+ per_inferior->disp_step_buf.emplace (disp_step_buf_addr);
+ }
+
+ return per_inferior->disp_step_buf->prepare (thread, displaced_pc);
+}
+
static void
ppc_linux_init_abi (struct gdbarch_info info,
- struct gdbarch *gdbarch)
+ struct gdbarch *gdbarch)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ ppc_gdbarch_tdep *tdep = gdbarch_tdep<ppc_gdbarch_tdep> (gdbarch);
struct tdesc_arch_data *tdesc_data = info.tdesc_data;
static const char *const stap_integer_prefixes[] = { "i", NULL };
static const char *const stap_register_indirection_prefixes[] = { "(",
static const char *const stap_register_indirection_suffixes[] = { ")",
NULL };
- linux_init_abi (info, gdbarch);
+ linux_init_abi (info, gdbarch, 0);
/* PPC GNU/Linux uses either 64-bit or 128-bit long doubles; where
128-bit, they can be either IBM long double or IEEE quad long double.
to distinguish between the IBM long double and IEEE quad cases. */
set_gdbarch_long_double_bit (gdbarch, 16 * TARGET_CHAR_BIT);
if (tdep->long_double_abi == POWERPC_LONG_DOUBLE_IEEE128)
- set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
+ set_gdbarch_long_double_format (gdbarch, floatformats_ieee_quad);
else
set_gdbarch_long_double_format (gdbarch, floatformats_ibm_long_double);
/* Support for floating-point data type variants. */
set_gdbarch_floatformat_for_type (gdbarch, ppc_floatformat_for_type);
+ /* Support for replacing typedef record. */
+ set_gdbarch_dwarf2_omit_typedef_p (gdbarch, linux_dwarf2_omit_typedef_p);
+
/* Handle inferior calls during interrupted system calls. */
set_gdbarch_write_pc (gdbarch, ppc_linux_write_pc);
(well ignoring vectors that is). When this was corrected, it
wasn't fixed for GNU/Linux native platform. Use the
PowerOpen struct convention. */
- set_gdbarch_return_value (gdbarch, ppc_linux_return_value);
+ set_gdbarch_return_value_as_value (gdbarch, ppc_linux_return_value);
+ set_gdbarch_return_value (gdbarch, nullptr);
set_gdbarch_memory_remove_breakpoint (gdbarch,
- ppc_linux_memory_remove_breakpoint);
+ ppc_linux_memory_remove_breakpoint);
/* Shared library handling. */
set_gdbarch_skip_trampoline_code (gdbarch, ppc_skip_trampoline_code);
set_solib_svr4_fetch_link_map_offsets
- (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+ (gdbarch, linux_ilp32_fetch_link_map_offsets);
/* Setting the correct XML syscall filename. */
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_PPC);
powerpc_so_ops.in_dynsym_resolve_code =
powerpc_linux_in_dynsym_resolve_code;
}
- set_solib_ops (gdbarch, &powerpc_so_ops);
+ set_gdbarch_so_ops (gdbarch, &powerpc_so_ops);
set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
}
/* Shared library handling. */
set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);
set_solib_svr4_fetch_link_map_offsets
- (gdbarch, svr4_lp64_fetch_link_map_offsets);
+ (gdbarch, linux_lp64_fetch_link_map_offsets);
/* Setting the correct XML syscall filename. */
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_PPC64);
set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpcle");
else
set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpc");
+ /* Set compiler triplet. */
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
+ set_gdbarch_gnu_triplet_regexp (gdbarch, ppc64le_gnu_triplet_regexp);
+ else
+ set_gdbarch_gnu_triplet_regexp (gdbarch, ppc64_gnu_triplet_regexp);
+ /* Set GCC target options. */
+ set_gdbarch_gcc_target_options (gdbarch, ppc64_linux_gcc_target_options);
}
set_gdbarch_core_read_description (gdbarch, ppc_linux_core_read_description);
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
- svr4_fetch_objfile_link_map);
+ svr4_fetch_objfile_link_map);
if (tdesc_data)
{
const struct tdesc_feature *feature;
/* If we have target-described registers, then we can safely
- reserve a number for PPC_ORIG_R3_REGNUM and PPC_TRAP_REGNUM
+ reserve a number for PPC_ORIG_R3_REGNUM and PPC_TRAP_REGNUM
(whether they are described or not). */
gdb_assert (gdbarch_num_regs (gdbarch) <= PPC_ORIG_R3_REGNUM);
set_gdbarch_num_regs (gdbarch, PPC_TRAP_REGNUM + 1);
/* If they are present, then assign them to the reserved number. */
feature = tdesc_find_feature (info.target_desc,
- "org.gnu.gdb.power.linux");
+ "org.gnu.gdb.power.linux");
if (feature != NULL)
{
tdesc_numbered_register (feature, tdesc_data,
}
}
- /* Enable Cell/B.E. if supported by the target. */
- if (tdesc_compatible_p (info.target_desc,
- bfd_lookup_arch (bfd_arch_spu, bfd_mach_spu)))
- {
- /* Cell/B.E. multi-architecture support. */
- set_spu_solib_ops (gdbarch);
-
- /* Cell/B.E. cross-architecture unwinder support. */
- frame_unwind_prepend_unwinder (gdbarch, &ppu2spu_unwind);
-
- /* We need to support more than "addr_bit" significant address bits
- in order to support SPUADDR_ADDR encoded values. */
- set_gdbarch_significant_addr_bit (gdbarch, 64);
- }
-
- set_gdbarch_displaced_step_location (gdbarch,
- linux_displaced_step_location);
-
/* Support reverse debugging. */
set_gdbarch_process_record (gdbarch, ppc_process_record);
set_gdbarch_process_record_signal (gdbarch, ppc_linux_record_signal);
ppc_init_linux_record_tdep (&ppc_linux_record_tdep, 4);
ppc_init_linux_record_tdep (&ppc64_linux_record_tdep, 8);
+
+ /* Setup displaced stepping. */
+ set_gdbarch_displaced_step_prepare (gdbarch,
+ ppc_linux_displaced_step_prepare);
+
}
+void _initialize_ppc_linux_tdep ();
void
-_initialize_ppc_linux_tdep (void)
+_initialize_ppc_linux_tdep ()
{
- /* Register for all sub-familes of the POWER/PowerPC: 32-bit and
+ /* Register for all sub-families of the POWER/PowerPC: 32-bit and
64-bit PowerPC, and the older rs6k. */
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc, GDB_OSABI_LINUX,
- ppc_linux_init_abi);
+ ppc_linux_init_abi);
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc64, GDB_OSABI_LINUX,
- ppc_linux_init_abi);
+ ppc_linux_init_abi);
gdbarch_register_osabi (bfd_arch_rs6000, bfd_mach_rs6k, GDB_OSABI_LINUX,
- ppc_linux_init_abi);
-
- /* Attach to observers to track __spe_current_active_context. */
- gdb::observers::inferior_created.attach (ppc_linux_spe_context_inferior_created);
- gdb::observers::solib_loaded.attach (ppc_linux_spe_context_solib_loaded);
- gdb::observers::solib_unloaded.attach (ppc_linux_spe_context_solib_unloaded);
+ ppc_linux_init_abi);
/* Initialize the Linux target descriptions. */
initialize_tdesc_powerpc_32l ();
initialize_tdesc_powerpc_altivec32l ();
- initialize_tdesc_powerpc_cell32l ();
initialize_tdesc_powerpc_vsx32l ();
initialize_tdesc_powerpc_isa205_32l ();
initialize_tdesc_powerpc_isa205_altivec32l ();
initialize_tdesc_powerpc_isa205_vsx32l ();
+ initialize_tdesc_powerpc_isa205_ppr_dscr_vsx32l ();
+ initialize_tdesc_powerpc_isa207_vsx32l ();
+ initialize_tdesc_powerpc_isa207_htm_vsx32l ();
initialize_tdesc_powerpc_64l ();
initialize_tdesc_powerpc_altivec64l ();
- initialize_tdesc_powerpc_cell64l ();
initialize_tdesc_powerpc_vsx64l ();
initialize_tdesc_powerpc_isa205_64l ();
initialize_tdesc_powerpc_isa205_altivec64l ();
initialize_tdesc_powerpc_isa205_vsx64l ();
+ initialize_tdesc_powerpc_isa205_ppr_dscr_vsx64l ();
+ initialize_tdesc_powerpc_isa207_vsx64l ();
+ initialize_tdesc_powerpc_isa207_htm_vsx64l ();
initialize_tdesc_powerpc_e500l ();
}