/* Target-dependent code for GNU/Linux running on PA-RISC, for GDB.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcore.h"
#include "trad-frame.h"
#include "dwarf2-frame.h"
#include "value.h"
+#include "regset.h"
+#include "regcache.h"
#include "hppa-tdep.h"
-
+#include "linux-tdep.h"
#include "elf/common.h"
-#if 0
-/* Convert DWARF register number REG to the appropriate register
- number used by GDB. */
+/* Map DWARF DBX register numbers to GDB register numbers. */
static int
-hppa_dwarf_reg_to_regnum (int reg)
+hppa_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
{
- /* registers 0 - 31 are the same in both sets */
- if (reg < 32)
+ /* The general registers and the sar are the same in both sets. */
+ if (reg >= 0 && reg <= 32)
return reg;
- /* dwarf regs 32 to 85 are fpregs 4 - 31 */
- if (reg >= 32 && reg <= 85)
- return HPPA_FP4_REGNUM + (reg - 32);
+ /* fr4-fr31 (left and right halves) are mapped from 72. */
+ if (reg >= 72 && reg <= 72 + 28 * 2)
+ return HPPA_FP4_REGNUM + (reg - 72);
- warning (_("Unmapped DWARF Register #%d encountered."), reg);
return -1;
}
-#endif
static void
-hppa_linux_target_write_pc (CORE_ADDR v, ptid_t ptid)
+hppa_linux_target_write_pc (struct regcache *regcache, CORE_ADDR v)
{
/* Probably this should be done by the kernel, but it isn't. */
- write_register_pid (HPPA_PCOQ_HEAD_REGNUM, v | 0x3, ptid);
- write_register_pid (HPPA_PCOQ_TAIL_REGNUM, (v + 4) | 0x3, ptid);
+ regcache_cooked_write_unsigned (regcache, HPPA_PCOQ_HEAD_REGNUM, v | 0x3);
+ regcache_cooked_write_unsigned (regcache,
+ HPPA_PCOQ_TAIL_REGNUM, (v + 4) | 0x3);
}
/* An instruction to match. */
unsigned int mask; /* ... with this mask. */
};
-/* See bfd/elf32-hppa.c */
-static struct insn_pattern hppa_long_branch_stub[] = {
- /* ldil LR'xxx,%r1 */
- { 0x20200000, 0xffe00000 },
- /* be,n RR'xxx(%sr4,%r1) */
- { 0xe0202002, 0xffe02002 },
- { 0, 0 }
-};
-
-static struct insn_pattern hppa_long_branch_pic_stub[] = {
- /* b,l .+8, %r1 */
- { 0xe8200000, 0xffe00000 },
- /* addil LR'xxx - ($PIC_pcrel$0 - 4), %r1 */
- { 0x28200000, 0xffe00000 },
- /* be,n RR'xxxx - ($PIC_pcrel$0 - 8)(%sr4, %r1) */
- { 0xe0202002, 0xffe02002 },
- { 0, 0 }
-};
-
-static struct insn_pattern hppa_import_stub[] = {
- /* addil LR'xxx, %dp */
- { 0x2b600000, 0xffe00000 },
- /* ldw RR'xxx(%r1), %r21 */
- { 0x48350000, 0xffffb000 },
- /* bv %r0(%r21) */
- { 0xeaa0c000, 0xffffffff },
- /* ldw RR'xxx+4(%r1), %r19 */
- { 0x48330000, 0xffffb000 },
- { 0, 0 }
-};
-
-static struct insn_pattern hppa_import_pic_stub[] = {
- /* addil LR'xxx,%r19 */
- { 0x2a600000, 0xffe00000 },
- /* ldw RR'xxx(%r1),%r21 */
- { 0x48350000, 0xffffb000 },
- /* bv %r0(%r21) */
- { 0xeaa0c000, 0xffffffff },
- /* ldw RR'xxx+4(%r1),%r19 */
- { 0x48330000, 0xffffb000 },
- { 0, 0 },
-};
-
-static struct insn_pattern hppa_plt_stub[] = {
- /* b,l 1b, %r20 - 1b is 3 insns before here */
- { 0xea9f1fdd, 0xffffffff },
- /* depi 0,31,2,%r20 */
- { 0xd6801c1e, 0xffffffff },
- { 0, 0 }
-};
-
static struct insn_pattern hppa_sigtramp[] = {
/* ldi 0, %r25 or ldi 1, %r25 */
{ 0x34190000, 0xfffffffd },
When the match is successful, fill INSN[i] with what PATTERN[i]
matched. */
static int
-insns_match_pattern (CORE_ADDR pc,
+insns_match_pattern (struct gdbarch *gdbarch, CORE_ADDR pc,
struct insn_pattern *pattern,
unsigned int *insn)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int i;
CORE_ADDR npc = pc;
for (i = 0; pattern[i].mask; i++)
{
- char buf[4];
+ gdb_byte buf[4];
- deprecated_read_memory_nobpt (npc, buf, 4);
- insn[i] = extract_unsigned_integer (buf, 4);
+ target_read_memory (npc, buf, 4);
+ insn[i] = extract_unsigned_integer (buf, 4, byte_order);
if ((insn[i] & pattern[i].mask) == pattern[i].data)
npc += 4;
else
return 1;
}
-/* The relaxed version of the insn matcher allows us to match from somewhere
- inside the pattern, by looking backwards in the instruction scheme. */
-static int
-insns_match_pattern_relaxed (CORE_ADDR pc,
- struct insn_pattern *pattern,
- unsigned int *insn)
-{
- int pat_len = 0;
- int offset;
-
- while (pattern[pat_len].mask)
- pat_len++;
-
- for (offset = 0; offset < pat_len; offset++)
- {
- if (insns_match_pattern (pc - offset * 4,
- pattern, insn))
- return 1;
- }
-
- return 0;
-}
-
-static int
-hppa_linux_in_dyncall (CORE_ADDR pc)
-{
- struct unwind_table_entry *u;
- u = find_unwind_entry (hppa_symbol_address ("$$dyncall"));
-
- if (!u)
- return 0;
-
- return pc >= u->region_start && pc <= u->region_end;
-}
-
-/* There are several kinds of "trampolines" that we need to deal with:
- - long branch stubs: these are inserted by the linker when a branch
- target is too far away for a branch insn to reach
- - plt stubs: these should go into the .plt section, so are easy to find
- - import stubs: used to call from object to shared lib or shared lib to
- shared lib; these go in regular text sections. In fact the linker tries
- to put them throughout the code because branches have limited reachability.
- We use the same mechanism as ppc64 to recognize the stub insn patterns.
- - $$dyncall: similar to hpux, hppa-linux uses $$dyncall for indirect function
- calls. $$dyncall is exported by libgcc.a */
-static int
-hppa_linux_in_solib_call_trampoline (CORE_ADDR pc, char *name)
-{
- unsigned int insn[HPPA_MAX_INSN_PATTERN_LEN];
- int r;
- struct unwind_table_entry *u;
-
- /* on hppa-linux, linker stubs have no unwind information. Since the pattern
- matching for linker stubs can be quite slow, we try to avoid it if
- we can. */
- u = find_unwind_entry (pc);
-
- r = in_plt_section (pc, name)
- || hppa_linux_in_dyncall (pc)
- || (u == NULL
- && (insns_match_pattern_relaxed (pc, hppa_import_stub, insn)
- || insns_match_pattern_relaxed (pc, hppa_import_pic_stub, insn)
- || insns_match_pattern_relaxed (pc, hppa_long_branch_stub, insn)
- || insns_match_pattern_relaxed (pc, hppa_long_branch_pic_stub, insn)));
-
- return r;
-}
-
-static CORE_ADDR
-hppa_linux_skip_trampoline_code (CORE_ADDR pc)
-{
- unsigned int insn[HPPA_MAX_INSN_PATTERN_LEN];
- int dp_rel, pic_rel;
-
- /* dyncall handles both PLABELs and direct addresses */
- if (hppa_linux_in_dyncall (pc))
- {
- pc = (CORE_ADDR) read_register (22);
-
- /* PLABELs have bit 30 set; if it's a PLABEL, then dereference it */
- if (pc & 0x2)
- pc = (CORE_ADDR) read_memory_integer (pc & ~0x3, TARGET_PTR_BIT / 8);
-
- return pc;
- }
-
- dp_rel = pic_rel = 0;
- if ((dp_rel = insns_match_pattern (pc, hppa_import_stub, insn))
- || (pic_rel = insns_match_pattern (pc, hppa_import_pic_stub, insn)))
- {
- /* Extract the target address from the addil/ldw sequence. */
- pc = hppa_extract_21 (insn[0]) + hppa_extract_14 (insn[1]);
-
- if (dp_rel)
- pc += (CORE_ADDR) read_register (27);
- else
- pc += (CORE_ADDR) read_register (19);
-
- /* fallthrough */
- }
-
- if (in_plt_section (pc, NULL))
- {
- pc = (CORE_ADDR) read_memory_integer (pc, TARGET_PTR_BIT / 8);
-
- /* if the plt slot has not yet been resolved, the target will
- be the plt stub */
- if (in_plt_section (pc, NULL))
- {
- /* Sanity check: are we pointing to the plt stub? */
- if (insns_match_pattern (pc, hppa_plt_stub, insn))
- {
- /* this should point to the fixup routine */
- pc = (CORE_ADDR) read_memory_integer (pc + 8, TARGET_PTR_BIT / 8);
- }
- else
- {
- error (_("Cannot resolve plt stub at 0x%s."),
- paddr_nz (pc));
- pc = 0;
- }
- }
- }
-
- return pc;
-}
-
/* Signal frames. */
/* (This is derived from MD_FALLBACK_FRAME_STATE_FOR in gcc.)
Note that with a 2.4 64-bit kernel, the signal context is not properly
passed back to userspace so the unwind will not work correctly. */
static CORE_ADDR
-hppa_linux_sigtramp_find_sigcontext (CORE_ADDR pc)
+hppa_linux_sigtramp_find_sigcontext (struct gdbarch *gdbarch, CORE_ADDR pc)
{
unsigned int dummy[HPPA_MAX_INSN_PATTERN_LEN];
int offs = 0;
- int try;
+ int attempt;
/* offsets to try to find the trampoline */
static int pcoffs[] = { 0, 4*4, 5*4 };
/* offsets to the rt_sigframe structure */
e4008200 be,l 0x100(%sr2, %r0), %sr0, %r31
08000240 nop */
- for (try = 0; try < ARRAY_SIZE (pcoffs); try++)
+ for (attempt = 0; attempt < ARRAY_SIZE (pcoffs); attempt++)
{
- if (insns_match_pattern (sp + pcoffs[try], hppa_sigtramp, dummy))
+ if (insns_match_pattern (gdbarch, sp + pcoffs[attempt],
+ hppa_sigtramp, dummy))
{
- offs = sfoffs[try];
+ offs = sfoffs[attempt];
break;
}
}
if (offs == 0)
{
- if (insns_match_pattern (pc, hppa_sigtramp, dummy))
+ if (insns_match_pattern (gdbarch, pc, hppa_sigtramp, dummy))
{
/* sigaltstack case: we have no way of knowing which offset to
- use in this case; default to new kernel handling. If this is
+ use in this case; default to new kernel handling. If this is
wrong the unwinding will fail. */
- try = 2;
- sp = pc - pcoffs[try];
+ attempt = 2;
+ sp = pc - pcoffs[attempt];
}
else
{
/* sp + sfoffs[try] points to a struct rt_sigframe, which contains
a struct siginfo and a struct ucontext. struct ucontext contains
- a struct sigcontext. Return an offset to this sigcontext here. Too
- bad we cannot include system specific headers :-(.
+ a struct sigcontext. Return an offset to this sigcontext here. Too
+ bad we cannot include system specific headers :-(.
sizeof(struct siginfo) == 128
offsetof(struct ucontext, uc_mcontext) == 24. */
- return sp + sfoffs[try] + 128 + 24;
+ return sp + sfoffs[attempt] + 128 + 24;
}
struct hppa_linux_sigtramp_unwind_cache
};
static struct hppa_linux_sigtramp_unwind_cache *
-hppa_linux_sigtramp_frame_unwind_cache (struct frame_info *next_frame,
+hppa_linux_sigtramp_frame_unwind_cache (struct frame_info *this_frame,
void **this_cache)
{
- struct gdbarch *gdbarch = get_frame_arch (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct hppa_linux_sigtramp_unwind_cache *info;
CORE_ADDR pc, scptr;
int i;
if (*this_cache)
- return *this_cache;
+ return (struct hppa_linux_sigtramp_unwind_cache *) *this_cache;
info = FRAME_OBSTACK_ZALLOC (struct hppa_linux_sigtramp_unwind_cache);
*this_cache = info;
- info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ info->saved_regs = trad_frame_alloc_saved_regs (this_frame);
- pc = frame_pc_unwind (next_frame);
- scptr = hppa_linux_sigtramp_find_sigcontext (pc);
+ pc = get_frame_pc (this_frame);
+ scptr = hppa_linux_sigtramp_find_sigcontext (gdbarch, pc);
/* structure of struct sigcontext:
/* Skip sc_flags. */
scptr += 4;
- /* GR[0] is the psw, we don't restore that. */
+ /* GR[0] is the psw. */
+ info->saved_regs[HPPA_IPSW_REGNUM].addr = scptr;
scptr += 4;
/* General registers. */
scptr += 4;
}
- /* Pad. */
+ /* Pad to long long boundary. */
scptr += 4;
/* FP regs; FP0-3 are not restored. */
scptr += 4;
}
- /* IASQ/IAOQ. */
+ /* IASQ/IAOQ. */
info->saved_regs[HPPA_PCSQ_HEAD_REGNUM].addr = scptr;
scptr += 4;
info->saved_regs[HPPA_PCSQ_TAIL_REGNUM].addr = scptr;
info->saved_regs[HPPA_PCOQ_TAIL_REGNUM].addr = scptr;
scptr += 4;
- info->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
+ info->saved_regs[HPPA_SAR_REGNUM].addr = scptr;
+
+ info->base = get_frame_register_unsigned (this_frame, HPPA_SP_REGNUM);
return info;
}
static void
-hppa_linux_sigtramp_frame_this_id (struct frame_info *next_frame,
+hppa_linux_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_prologue_cache,
struct frame_id *this_id)
{
struct hppa_linux_sigtramp_unwind_cache *info
- = hppa_linux_sigtramp_frame_unwind_cache (next_frame, this_prologue_cache);
- *this_id = frame_id_build (info->base, frame_pc_unwind (next_frame));
+ = hppa_linux_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache);
+ *this_id = frame_id_build (info->base, get_frame_pc (this_frame));
}
-static void
-hppa_linux_sigtramp_frame_prev_register (struct frame_info *next_frame,
+static struct value *
+hppa_linux_sigtramp_frame_prev_register (struct frame_info *this_frame,
void **this_prologue_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp,
- CORE_ADDR *addrp,
- int *realnump, void *valuep)
+ int regnum)
{
struct hppa_linux_sigtramp_unwind_cache *info
- = hppa_linux_sigtramp_frame_unwind_cache (next_frame, this_prologue_cache);
- hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ = hppa_linux_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache);
+ return hppa_frame_prev_register_helper (this_frame,
+ info->saved_regs, regnum);
}
-static const struct frame_unwind hppa_linux_sigtramp_frame_unwind = {
- SIGTRAMP_FRAME,
- hppa_linux_sigtramp_frame_this_id,
- hppa_linux_sigtramp_frame_prev_register
-};
-
/* hppa-linux always uses "new-style" rt-signals. The signal handler's return
address should point to a signal trampoline on the stack. The signal
trampoline is embedded in a rt_sigframe structure that is aligned on
the stack. We take advantage of the fact that sp must be 64-byte aligned,
and the trampoline is small, so by rounding down the trampoline address
we can find the beginning of the struct rt_sigframe. */
-static const struct frame_unwind *
-hppa_linux_sigtramp_unwind_sniffer (struct frame_info *next_frame)
+static int
+hppa_linux_sigtramp_frame_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_prologue_cache)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
- if (hppa_linux_sigtramp_find_sigcontext (pc))
- return &hppa_linux_sigtramp_frame_unwind;
+ if (hppa_linux_sigtramp_find_sigcontext (gdbarch, pc))
+ return 1;
- return NULL;
+ return 0;
}
+static const struct frame_unwind hppa_linux_sigtramp_frame_unwind = {
+ SIGTRAMP_FRAME,
+ default_frame_unwind_stop_reason,
+ hppa_linux_sigtramp_frame_this_id,
+ hppa_linux_sigtramp_frame_prev_register,
+ NULL,
+ hppa_linux_sigtramp_frame_sniffer
+};
+
/* Attempt to find (and return) the global pointer for the given
function.
d_un.d_ptr value is the global pointer. */
static CORE_ADDR
-hppa_linux_find_global_pointer (struct value *function)
+hppa_linux_find_global_pointer (struct gdbarch *gdbarch,
+ struct value *function)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct obj_section *faddr_sect;
CORE_ADDR faddr;
if (faddr & 2)
{
int status;
- char buf[4];
+ gdb_byte buf[4];
faddr &= ~3;
status = target_read_memory (faddr + 4, buf, sizeof (buf));
if (status == 0)
- return extract_unsigned_integer (buf, sizeof (buf));
+ return extract_unsigned_integer (buf, sizeof (buf), byte_order);
}
/* If the address is in the plt section, then the real function hasn't
yet been fixed up by the linker so we cannot determine the gp of
that function. */
- if (in_plt_section (faddr, NULL))
+ if (in_plt_section (faddr))
return 0;
faddr_sect = find_pc_section (faddr);
if (osect < faddr_sect->objfile->sections_end)
{
- CORE_ADDR addr;
+ CORE_ADDR addr, endaddr;
+
+ addr = obj_section_addr (osect);
+ endaddr = obj_section_endaddr (osect);
- addr = osect->addr;
- while (addr < osect->endaddr)
+ while (addr < endaddr)
{
int status;
LONGEST tag;
- char buf[4];
+ gdb_byte buf[4];
status = target_read_memory (addr, buf, sizeof (buf));
if (status != 0)
break;
- tag = extract_signed_integer (buf, sizeof (buf));
+ tag = extract_signed_integer (buf, sizeof (buf), byte_order);
if (tag == DT_PLTGOT)
{
status = target_read_memory (addr + 4, buf, sizeof (buf));
if (status != 0)
break;
- global_pointer = extract_unsigned_integer (buf, sizeof (buf));
-
- /* The payoff... */
+ global_pointer = extract_unsigned_integer (buf, sizeof (buf),
+ byte_order);
+ /* The payoff... */
return global_pointer;
}
}
return 0;
}
+\f
+/*
+ * Registers saved in a coredump:
+ * gr0..gr31
+ * sr0..sr7
+ * iaoq0..iaoq1
+ * iasq0..iasq1
+ * sar, iir, isr, ior, ipsw
+ * cr0, cr24..cr31
+ * cr8,9,12,13
+ * cr10, cr15
+ */
+
+static const struct regcache_map_entry hppa_linux_gregmap[] =
+ {
+ { 32, HPPA_R0_REGNUM },
+ { 1, HPPA_SR4_REGNUM+1 },
+ { 1, HPPA_SR4_REGNUM+2 },
+ { 1, HPPA_SR4_REGNUM+3 },
+ { 1, HPPA_SR4_REGNUM+4 },
+ { 1, HPPA_SR4_REGNUM },
+ { 1, HPPA_SR4_REGNUM+5 },
+ { 1, HPPA_SR4_REGNUM+6 },
+ { 1, HPPA_SR4_REGNUM+7 },
+ { 1, HPPA_PCOQ_HEAD_REGNUM },
+ { 1, HPPA_PCOQ_TAIL_REGNUM },
+ { 1, HPPA_PCSQ_HEAD_REGNUM },
+ { 1, HPPA_PCSQ_TAIL_REGNUM },
+ { 1, HPPA_SAR_REGNUM },
+ { 1, HPPA_IIR_REGNUM },
+ { 1, HPPA_ISR_REGNUM },
+ { 1, HPPA_IOR_REGNUM },
+ { 1, HPPA_IPSW_REGNUM },
+ { 1, HPPA_RCR_REGNUM },
+ { 8, HPPA_TR0_REGNUM },
+ { 4, HPPA_PID0_REGNUM },
+ { 1, HPPA_CCR_REGNUM },
+ { 1, HPPA_EIEM_REGNUM },
+ { 0 }
+ };
+
+static const struct regcache_map_entry hppa_linux_fpregmap[] =
+ {
+ /* FIXME: Only works for 32-bit mode. In 64-bit mode there should
+ be 32 fpregs, 8 bytes each. */
+ { 64, HPPA_FP0_REGNUM, 4 },
+ { 0 }
+ };
+
+/* HPPA Linux kernel register set. */
+static const struct regset hppa_linux_regset =
+{
+ hppa_linux_gregmap,
+ regcache_supply_regset, regcache_collect_regset
+};
-/* Forward declarations. */
-extern initialize_file_ftype _initialize_hppa_linux_tdep;
+static const struct regset hppa_linux_fpregset =
+{
+ hppa_linux_fpregmap,
+ regcache_supply_regset, regcache_collect_regset
+};
+
+static void
+hppa_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ cb (".reg", 80 * tdep->bytes_per_address, 80 * tdep->bytes_per_address,
+ &hppa_linux_regset, NULL, cb_data);
+ cb (".reg2", 64 * 4, 64 * 4, &hppa_linux_fpregset, NULL, cb_data);
+}
static void
hppa_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ linux_init_abi (info, gdbarch);
+
/* GNU/Linux is always ELF. */
tdep->is_elf = 1;
set_gdbarch_write_pc (gdbarch, hppa_linux_target_write_pc);
- frame_unwind_append_sniffer (gdbarch, hppa_linux_sigtramp_unwind_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &hppa_linux_sigtramp_frame_unwind);
/* GNU/Linux uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
- tdep->in_solib_call_trampoline = hppa_linux_in_solib_call_trampoline;
- set_gdbarch_skip_trampoline_code
- (gdbarch, hppa_linux_skip_trampoline_code);
+ tdep->in_solib_call_trampoline = hppa_in_solib_call_trampoline;
+ set_gdbarch_skip_trampoline_code (gdbarch, hppa_skip_trampoline_code);
/* GNU/Linux uses the dynamic linker included in the GNU C Library. */
set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
some discussions to support 128-bit long double, but it requires some
more work in gcc and glibc first. */
set_gdbarch_long_double_bit (gdbarch, 64);
+ set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
+
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, hppa_linux_iterate_over_regset_sections);
-#if 0
- /* Dwarf-2 unwinding support. Not yet working. */
- set_gdbarch_dwarf_reg_to_regnum (gdbarch, hppa_dwarf_reg_to_regnum);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, hppa_dwarf_reg_to_regnum);
- frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
- frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer);
-#endif
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
void
_initialize_hppa_linux_tdep (void)
{
- gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_LINUX, hppa_linux_init_abi);
+ gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_LINUX,
+ hppa_linux_init_abi);
+ gdbarch_register_osabi (bfd_arch_hppa, bfd_mach_hppa20w,
+ GDB_OSABI_LINUX, hppa_linux_init_abi);
}