mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 10:23:35 +08:00
4de283e4b5
Andreas Schwab and John Baldwin pointed out some bugs in the header sorting patch; and I noticed that the output was not correct when limited to a subset of files (a bug in my script). So, I'm reverting the patch. I may try again after fixing the issues pointed out. gdb/ChangeLog 2019-04-05 Tom Tromey <tom@tromey.com> Revert the header-sorting patch. * ft32-tdep.c: Revert. * frv-tdep.c: Revert. * frv-linux-tdep.c: Revert. * frame.c: Revert. * frame-unwind.c: Revert. * frame-base.c: Revert. * fork-child.c: Revert. * findvar.c: Revert. * findcmd.c: Revert. * filesystem.c: Revert. * filename-seen-cache.h: Revert. * filename-seen-cache.c: Revert. * fbsd-tdep.c: Revert. * fbsd-nat.h: Revert. * fbsd-nat.c: Revert. * f-valprint.c: Revert. * f-typeprint.c: Revert. * f-lang.c: Revert. * extension.h: Revert. * extension.c: Revert. * extension-priv.h: Revert. * expprint.c: Revert. * exec.h: Revert. * exec.c: Revert. * exceptions.c: Revert. * event-top.c: Revert. * event-loop.c: Revert. * eval.c: Revert. * elfread.c: Revert. * dwarf2read.h: Revert. * dwarf2read.c: Revert. * dwarf2loc.c: Revert. * dwarf2expr.h: Revert. * dwarf2expr.c: Revert. * dwarf2-frame.c: Revert. * dwarf2-frame-tailcall.c: Revert. * dwarf-index-write.h: Revert. * dwarf-index-write.c: Revert. * dwarf-index-common.c: Revert. * dwarf-index-cache.h: Revert. * dwarf-index-cache.c: Revert. * dummy-frame.c: Revert. * dtrace-probe.c: Revert. * disasm.h: Revert. * disasm.c: Revert. * disasm-selftests.c: Revert. * dictionary.c: Revert. * dicos-tdep.c: Revert. * demangle.c: Revert. * dcache.h: Revert. * dcache.c: Revert. * darwin-nat.h: Revert. * darwin-nat.c: Revert. * darwin-nat-info.c: Revert. * d-valprint.c: Revert. * d-namespace.c: Revert. * d-lang.c: Revert. * ctf.c: Revert. * csky-tdep.c: Revert. * csky-linux-tdep.c: Revert. * cris-tdep.c: Revert. * cris-linux-tdep.c: Revert. * cp-valprint.c: Revert. * cp-support.c: Revert. * cp-namespace.c: Revert. * cp-abi.c: Revert. * corelow.c: Revert. * corefile.c: Revert. * continuations.c: Revert. * completer.h: Revert. * completer.c: Revert. * complaints.c: Revert. * coffread.c: Revert. * coff-pe-read.c: Revert. * cli-out.h: Revert. * cli-out.c: Revert. * charset.c: Revert. * c-varobj.c: Revert. * c-valprint.c: Revert. * c-typeprint.c: Revert. * c-lang.c: Revert. * buildsym.c: Revert. * buildsym-legacy.c: Revert. * build-id.h: Revert. * build-id.c: Revert. * btrace.c: Revert. * bsd-uthread.c: Revert. * breakpoint.h: Revert. * breakpoint.c: Revert. * break-catch-throw.c: Revert. * break-catch-syscall.c: Revert. * break-catch-sig.c: Revert. * blockframe.c: Revert. * block.c: Revert. * bfin-tdep.c: Revert. * bfin-linux-tdep.c: Revert. * bfd-target.c: Revert. * bcache.c: Revert. * ax-general.c: Revert. * ax-gdb.h: Revert. * ax-gdb.c: Revert. * avr-tdep.c: Revert. * auxv.c: Revert. * auto-load.c: Revert. * arm-wince-tdep.c: Revert. * arm-tdep.c: Revert. * arm-symbian-tdep.c: Revert. * arm-pikeos-tdep.c: Revert. * arm-obsd-tdep.c: Revert. * arm-nbsd-tdep.c: Revert. * arm-nbsd-nat.c: Revert. * arm-linux-tdep.c: Revert. * arm-linux-nat.c: Revert. * arm-fbsd-tdep.c: Revert. * arm-fbsd-nat.c: Revert. * arm-bsd-tdep.c: Revert. * arch-utils.c: Revert. * arc-tdep.c: Revert. * arc-newlib-tdep.c: Revert. * annotate.h: Revert. * annotate.c: Revert. * amd64-windows-tdep.c: Revert. * amd64-windows-nat.c: Revert. * amd64-tdep.c: Revert. * amd64-sol2-tdep.c: Revert. * amd64-obsd-tdep.c: Revert. * amd64-obsd-nat.c: Revert. * amd64-nbsd-tdep.c: Revert. * amd64-nbsd-nat.c: Revert. * amd64-nat.c: Revert. * amd64-linux-tdep.c: Revert. * amd64-linux-nat.c: Revert. * amd64-fbsd-tdep.c: Revert. * amd64-fbsd-nat.c: Revert. * amd64-dicos-tdep.c: Revert. * amd64-darwin-tdep.c: Revert. * amd64-bsd-nat.c: Revert. * alpha-tdep.c: Revert. * alpha-obsd-tdep.c: Revert. * alpha-nbsd-tdep.c: Revert. * alpha-mdebug-tdep.c: Revert. * alpha-linux-tdep.c: Revert. * alpha-linux-nat.c: Revert. * alpha-bsd-tdep.c: Revert. * alpha-bsd-nat.c: Revert. * aix-thread.c: Revert. * agent.c: Revert. * addrmap.c: Revert. * ada-varobj.c: Revert. * ada-valprint.c: Revert. * ada-typeprint.c: Revert. * ada-tasks.c: Revert. * ada-lang.c: Revert. * aarch64-tdep.c: Revert. * aarch64-ravenscar-thread.c: Revert. * aarch64-newlib-tdep.c: Revert. * aarch64-linux-tdep.c: Revert. * aarch64-linux-nat.c: Revert. * aarch64-fbsd-tdep.c: Revert. * aarch64-fbsd-nat.c: Revert. * aarch32-linux-nat.c: Revert.
195 lines
5.5 KiB
C
195 lines
5.5 KiB
C
/* Ravenscar Aarch64 target support.
|
|
|
|
Copyright (C) 2017-2019 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "gdbcore.h"
|
|
#include "regcache.h"
|
|
#include "aarch64-tdep.h"
|
|
#include "inferior.h"
|
|
#include "ravenscar-thread.h"
|
|
#include "aarch64-ravenscar-thread.h"
|
|
|
|
#define NO_OFFSET -1
|
|
|
|
/* See aarch64-tdep.h for register numbers. */
|
|
|
|
static const int aarch64_context_offsets[] =
|
|
{
|
|
/* X0 - X28 */
|
|
NO_OFFSET, NO_OFFSET, NO_OFFSET, NO_OFFSET,
|
|
NO_OFFSET, NO_OFFSET, NO_OFFSET, NO_OFFSET,
|
|
NO_OFFSET, NO_OFFSET, NO_OFFSET, NO_OFFSET,
|
|
NO_OFFSET, NO_OFFSET, NO_OFFSET, NO_OFFSET,
|
|
NO_OFFSET, NO_OFFSET, NO_OFFSET, 0,
|
|
8, 16, 24, 32,
|
|
40, 48, 56, 64,
|
|
72,
|
|
|
|
/* FP, LR, SP, PC, CPSR */
|
|
/* Note that as task switch is synchronous, PC is in fact the LR here */
|
|
80, 88, 96, 88,
|
|
NO_OFFSET,
|
|
|
|
/* Q0 - Q31 */
|
|
112, 128, 144, 160,
|
|
176, 192, 208, 224,
|
|
240, 256, 272, 288,
|
|
304, 320, 336, 352,
|
|
368, 384, 400, 416,
|
|
432, 448, 464, 480,
|
|
496, 512, 528, 544,
|
|
560, 576, 592, 608,
|
|
|
|
/* FPSR, FPCR */
|
|
104, 108,
|
|
|
|
/* FPU Saved field */
|
|
624
|
|
};
|
|
|
|
/* The register layout info. */
|
|
|
|
struct ravenscar_reg_info
|
|
{
|
|
/* A table providing the offset relative to the context structure
|
|
where each register is saved. */
|
|
const int *context_offsets;
|
|
|
|
/* The number of elements in the context_offsets table above. */
|
|
int context_offsets_size;
|
|
};
|
|
|
|
/* supply register REGNUM, which has been saved on REGISTER_ADDR, to the
|
|
regcache. */
|
|
|
|
static void
|
|
supply_register_at_address (struct regcache *regcache, int regnum,
|
|
CORE_ADDR register_addr)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
int buf_size = register_size (gdbarch, regnum);
|
|
gdb_byte *buf;
|
|
|
|
buf = (gdb_byte *) alloca (buf_size);
|
|
read_memory (register_addr, buf, buf_size);
|
|
regcache->raw_supply (regnum, buf);
|
|
}
|
|
|
|
/* Return true if, for a non-running thread, REGNUM has been saved on the
|
|
Thread_Descriptor. */
|
|
|
|
static int
|
|
register_in_thread_descriptor_p (const struct ravenscar_reg_info *reg_info,
|
|
int regnum)
|
|
{
|
|
/* Check FPU registers */
|
|
return (regnum < reg_info->context_offsets_size
|
|
&& reg_info->context_offsets[regnum] != NO_OFFSET);
|
|
}
|
|
|
|
/* to_fetch_registers when inferior_ptid is different from the running
|
|
thread. */
|
|
|
|
static void
|
|
aarch64_ravenscar_generic_fetch_registers
|
|
(const struct ravenscar_reg_info *reg_info,
|
|
struct regcache *regcache, int regnum)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
const int num_regs = gdbarch_num_regs (gdbarch);
|
|
int current_regnum;
|
|
CORE_ADDR current_address;
|
|
CORE_ADDR thread_descriptor_address;
|
|
|
|
/* The tid is the thread_id field, which is a pointer to the thread. */
|
|
thread_descriptor_address = (CORE_ADDR) inferior_ptid.tid ();
|
|
|
|
/* Read registers. */
|
|
for (current_regnum = 0; current_regnum < num_regs; current_regnum++)
|
|
{
|
|
if (register_in_thread_descriptor_p (reg_info, current_regnum))
|
|
{
|
|
current_address = thread_descriptor_address
|
|
+ reg_info->context_offsets[current_regnum];
|
|
supply_register_at_address (regcache, current_regnum,
|
|
current_address);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* to_store_registers when inferior_ptid is different from the running
|
|
thread. */
|
|
|
|
static void
|
|
aarch64_ravenscar_generic_store_registers
|
|
(const struct ravenscar_reg_info *reg_info,
|
|
struct regcache *regcache, int regnum)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
int buf_size = register_size (gdbarch, regnum);
|
|
gdb_byte buf[buf_size];
|
|
ULONGEST register_address;
|
|
|
|
if (register_in_thread_descriptor_p (reg_info, regnum))
|
|
register_address
|
|
= inferior_ptid.tid () + reg_info->context_offsets [regnum];
|
|
else
|
|
return;
|
|
|
|
regcache->raw_collect (regnum, buf);
|
|
write_memory (register_address,
|
|
buf,
|
|
buf_size);
|
|
}
|
|
|
|
/* The ravenscar_reg_info for most Aarch64 targets. */
|
|
|
|
static const struct ravenscar_reg_info aarch64_reg_info =
|
|
{
|
|
aarch64_context_offsets,
|
|
ARRAY_SIZE (aarch64_context_offsets),
|
|
};
|
|
|
|
struct aarch64_ravenscar_ops : public ravenscar_arch_ops
|
|
{
|
|
void fetch_registers (struct regcache *regcache, int regnum) override
|
|
{
|
|
aarch64_ravenscar_generic_fetch_registers
|
|
(&aarch64_reg_info, regcache, regnum);
|
|
}
|
|
|
|
void store_registers (struct regcache *regcache, int regnum) override
|
|
{
|
|
aarch64_ravenscar_generic_store_registers
|
|
(&aarch64_reg_info, regcache, regnum);
|
|
}
|
|
};
|
|
|
|
/* The ravenscar_arch_ops vector for most Aarch64 targets. */
|
|
|
|
static struct aarch64_ravenscar_ops aarch64_ravenscar_ops;
|
|
|
|
/* Register aarch64_ravenscar_ops in GDBARCH. */
|
|
|
|
void
|
|
register_aarch64_ravenscar_ops (struct gdbarch *gdbarch)
|
|
{
|
|
set_gdbarch_ravenscar_ops (gdbarch, &aarch64_ravenscar_ops);
|
|
}
|