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5fe70629ce
This patch introduces a new macro, INIT_GDB_FILE. This is used to
replace the current "_initialize_" idiom when introducing a per-file
initialization function. That is, rather than write:
void _initialize_something ();
void
_initialize_something ()
{
...
}
... now you would write:
INIT_GDB_FILE (something)
{
...
}
The macro handles both the declaration and definition of the function.
The point of this approach is that it makes it harder to accidentally
cause an initializer to be omitted; see commit 2711e475 ("Ensure
cooked_index_entry self-tests are run"). Specifically, the regexp now
used by make-init-c seems harder to trick.
New in v2: un-did some erroneous changes made by the script.
The bulk of this patch was written by script.
Regression tested on x86-64 Fedora 41.
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* Low level Alpha GNU/Linux interface, for GDB when running native.
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Copyright (C) 2005-2025 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "target.h"
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#include "regcache.h"
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#include "linux-nat-trad.h"
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#include "alpha-tdep.h"
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#include "gdbarch.h"
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#include "nat/gdb_ptrace.h"
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#include <alpha/ptrace.h>
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#include <sys/procfs.h>
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#include "gregset.h"
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/* The address of UNIQUE for ptrace. */
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#define ALPHA_UNIQUE_PTRACE_ADDR 65
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class alpha_linux_nat_target final : public linux_nat_trad_target
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{
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protected:
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/* Override linux_nat_trad_target methods. */
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CORE_ADDR register_u_offset (struct gdbarch *gdbarch,
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int regno, int store_p) override;
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};
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static alpha_linux_nat_target the_alpha_linux_nat_target;
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/* See the comment in m68k-tdep.c regarding the utility of these
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functions. */
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void
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supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
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{
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const long *regp = (const long *)gregsetp;
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/* PC is in slot 32, UNIQUE is in slot 33. */
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alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32);
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}
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void
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fill_gregset (const struct regcache *regcache,
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gdb_gregset_t *gregsetp, int regno)
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{
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long *regp = (long *)gregsetp;
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/* PC is in slot 32, UNIQUE is in slot 33. */
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alpha_fill_int_regs (regcache, regno, regp, regp + 31, regp + 32);
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}
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/* Now we do the same thing for floating-point registers.
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Again, see the comments in m68k-tdep.c. */
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void
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supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
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{
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const long *regp = (const long *)fpregsetp;
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/* FPCR is in slot 32. */
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alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
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}
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void
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fill_fpregset (const struct regcache *regcache,
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gdb_fpregset_t *fpregsetp, int regno)
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{
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long *regp = (long *)fpregsetp;
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/* FPCR is in slot 32. */
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alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
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}
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CORE_ADDR
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alpha_linux_nat_target::register_u_offset (struct gdbarch *gdbarch,
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int regno, int store_p)
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{
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if (regno == gdbarch_pc_regnum (gdbarch))
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return PC;
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if (regno == ALPHA_UNIQUE_REGNUM)
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return ALPHA_UNIQUE_PTRACE_ADDR;
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if (regno < gdbarch_fp0_regnum (gdbarch))
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return GPR_BASE + regno;
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else
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return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch);
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}
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INIT_GDB_FILE (alpha_linux_nat)
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{
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linux_target = &the_alpha_linux_nat_target;
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add_inf_child_target (&the_alpha_linux_nat_target);
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}
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