2018-01-01 05:43:02 +01:00
|
|
|
/* Copyright (C) 2009-2018 Free Software Foundation, Inc.
|
2015-08-25 12:38:29 +02:00
|
|
|
Contributed by ARM Ltd.
|
|
|
|
|
|
|
|
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/>. */
|
|
|
|
|
|
|
|
#ifndef AARCH64_LINUX_H
|
|
|
|
#define AARCH64_LINUX_H 1
|
|
|
|
|
aarch64 multi-arch support (part 2): siginfo fixup
This patch is to fixup the siginfo_t when aarch64 gdb or gdbserver
read from or write to the arm inferior. It is to convert the
"struct siginfo_t" between aarch64 and arm, which is quite mechanical.
gdb/gdbserver:
2015-09-15 Yao Qi <yao.qi@linaro.org>
* linux-aarch64-low.c (aarch64_linux_siginfo_fixup): New
function.
(struct linux_target_ops the_low_target): Install
aarch64_linux_siginfo_fixup.
gdb:
2015-09-15 Yao Qi <yao.qi@linaro.org>
* aarch64-linux-nat.c (aarch64_linux_siginfo_fixup): New function.
(_initialize_aarch64_linux_nat): Call linux_nat_set_siginfo_fixup.
* nat/aarch64-linux.c (aarch64_compat_siginfo_from_siginfo):
New function.
(aarch64_siginfo_from_compat_siginfo): New function.
* nat/aarch64-linux.h: Include signal.h.
(compat_int_t, compat_uptr_t, compat_time_t): Typedef.
(compat_timer_t, compat_clock_t): Likewise.
(struct compat_timeval): New.
(union compat_sigval): New.
(struct compat_siginfo): New.
(cpt_si_pid, cpt_si_uid, cpt_si_timerid): New macros.
(cpt_si_overrun, cpt_si_status, cpt_si_utime): Likewise.
(cpt_si_stime, cpt_si_ptr, cpt_si_addr): Likewise.
(cpt_si_band, cpt_si_fd): Likewise.
2015-09-15 11:25:51 +02:00
|
|
|
#include <signal.h>
|
|
|
|
|
2015-09-18 14:59:42 +02:00
|
|
|
/* Defines ps_err_e, struct ps_prochandle. */
|
|
|
|
#include "gdb_proc_service.h"
|
|
|
|
|
aarch64 multi-arch support (part 2): siginfo fixup
This patch is to fixup the siginfo_t when aarch64 gdb or gdbserver
read from or write to the arm inferior. It is to convert the
"struct siginfo_t" between aarch64 and arm, which is quite mechanical.
gdb/gdbserver:
2015-09-15 Yao Qi <yao.qi@linaro.org>
* linux-aarch64-low.c (aarch64_linux_siginfo_fixup): New
function.
(struct linux_target_ops the_low_target): Install
aarch64_linux_siginfo_fixup.
gdb:
2015-09-15 Yao Qi <yao.qi@linaro.org>
* aarch64-linux-nat.c (aarch64_linux_siginfo_fixup): New function.
(_initialize_aarch64_linux_nat): Call linux_nat_set_siginfo_fixup.
* nat/aarch64-linux.c (aarch64_compat_siginfo_from_siginfo):
New function.
(aarch64_siginfo_from_compat_siginfo): New function.
* nat/aarch64-linux.h: Include signal.h.
(compat_int_t, compat_uptr_t, compat_time_t): Typedef.
(compat_timer_t, compat_clock_t): Likewise.
(struct compat_timeval): New.
(union compat_sigval): New.
(struct compat_siginfo): New.
(cpt_si_pid, cpt_si_uid, cpt_si_timerid): New macros.
(cpt_si_overrun, cpt_si_status, cpt_si_utime): Likewise.
(cpt_si_stime, cpt_si_ptr, cpt_si_addr): Likewise.
(cpt_si_band, cpt_si_fd): Likewise.
2015-09-15 11:25:51 +02:00
|
|
|
typedef int compat_int_t;
|
|
|
|
typedef unsigned int compat_uptr_t;
|
|
|
|
|
|
|
|
typedef int compat_time_t;
|
|
|
|
typedef int compat_timer_t;
|
|
|
|
typedef int compat_clock_t;
|
|
|
|
|
|
|
|
struct compat_timeval
|
|
|
|
{
|
|
|
|
compat_time_t tv_sec;
|
|
|
|
int tv_usec;
|
|
|
|
};
|
|
|
|
|
|
|
|
typedef union compat_sigval
|
|
|
|
{
|
|
|
|
compat_int_t sival_int;
|
|
|
|
compat_uptr_t sival_ptr;
|
|
|
|
} compat_sigval_t;
|
|
|
|
|
|
|
|
typedef struct compat_siginfo
|
|
|
|
{
|
|
|
|
int si_signo;
|
|
|
|
int si_errno;
|
|
|
|
int si_code;
|
|
|
|
|
|
|
|
union
|
|
|
|
{
|
|
|
|
int _pad[((128 / sizeof (int)) - 3)];
|
|
|
|
|
|
|
|
/* kill() */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
unsigned int _pid;
|
|
|
|
unsigned int _uid;
|
|
|
|
} _kill;
|
|
|
|
|
|
|
|
/* POSIX.1b timers */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
compat_timer_t _tid;
|
|
|
|
int _overrun;
|
|
|
|
compat_sigval_t _sigval;
|
|
|
|
} _timer;
|
|
|
|
|
|
|
|
/* POSIX.1b signals */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
unsigned int _pid;
|
|
|
|
unsigned int _uid;
|
|
|
|
compat_sigval_t _sigval;
|
|
|
|
} _rt;
|
|
|
|
|
|
|
|
/* SIGCHLD */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
unsigned int _pid;
|
|
|
|
unsigned int _uid;
|
|
|
|
int _status;
|
|
|
|
compat_clock_t _utime;
|
|
|
|
compat_clock_t _stime;
|
|
|
|
} _sigchld;
|
|
|
|
|
|
|
|
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
unsigned int _addr;
|
|
|
|
} _sigfault;
|
|
|
|
|
|
|
|
/* SIGPOLL */
|
|
|
|
struct
|
|
|
|
{
|
|
|
|
int _band;
|
|
|
|
int _fd;
|
|
|
|
} _sigpoll;
|
|
|
|
} _sifields;
|
|
|
|
} compat_siginfo_t;
|
|
|
|
|
|
|
|
#define cpt_si_pid _sifields._kill._pid
|
|
|
|
#define cpt_si_uid _sifields._kill._uid
|
|
|
|
#define cpt_si_timerid _sifields._timer._tid
|
|
|
|
#define cpt_si_overrun _sifields._timer._overrun
|
|
|
|
#define cpt_si_status _sifields._sigchld._status
|
|
|
|
#define cpt_si_utime _sifields._sigchld._utime
|
|
|
|
#define cpt_si_stime _sifields._sigchld._stime
|
|
|
|
#define cpt_si_ptr _sifields._rt._sigval.sival_ptr
|
|
|
|
#define cpt_si_addr _sifields._sigfault._addr
|
|
|
|
#define cpt_si_band _sifields._sigpoll._band
|
|
|
|
#define cpt_si_fd _sifields._sigpoll._fd
|
|
|
|
|
|
|
|
void aarch64_siginfo_from_compat_siginfo (siginfo_t *to,
|
|
|
|
compat_siginfo_t *from);
|
|
|
|
void aarch64_compat_siginfo_from_siginfo (compat_siginfo_t *to,
|
|
|
|
siginfo_t *from);
|
|
|
|
|
2015-08-25 12:38:29 +02:00
|
|
|
void aarch64_linux_prepare_to_resume (struct lwp_info *lwp);
|
|
|
|
|
2015-08-25 12:38:29 +02:00
|
|
|
void aarch64_linux_new_thread (struct lwp_info *lwp);
|
|
|
|
|
lwp_info: Make the arch code free arch_lwp_info
I have the goal of "poisoning" the XNEW/xfree-family of functions, so
that we catch their usages with non-POD types. A few things need to be
fixed in the mean time, this is one.
The common lwp code in linux-nat.c and gdbserver/linux-low.c xfrees the
private lwp data of type arch_lwp_info. However, that type is opaque
from its point of view, as its defined differently in each arch-specific
implementation. This trips on the std::is_pod<T> check, since the
compiler can't tell whether the type is POD or not if it doesn't know
about it.
My initial patch [1] made a class hierarchy with a virtual destructor.
However, as Pedro pointed out, we only have one native architecture at
the time built in gdb and gdbserver, so that's overkill. Instead, we
can move the responsibility of free'ing arch_lwp_info to the arch code
(which is also the one that allocated it in the first place). This is
what this patch does.
Also, I had the concern that if we wanted to use C++ features in these
structures, we would have a problem with the one-definition rule.
However, since a build will only have one version of arch_lwp_info,
that's not a problem.
There are changes in arch-specific files, I was only able to built-test
this patch with the following cross-compilers:
aarch64-linux-gnu
alpha-linux-gnu
arm-linux-gnueabihf
hppa-linux-gnu
m68k-linux-gnu
mips64el-linux-gnuabi64
powerpc64-linux-gnu
s390x-linux-gnu
sh4-linux-gnu
sparc64-linux-gnu
x86_64-linux-gnu
x86_64-w64-mingw32
A buildbot run didn't find any regression.
[1] https://sourceware.org/ml/gdb-patches/2017-08/msg00255.html
gdb/ChangeLog:
* linux-nat.h (linux_nat_set_delete_thread): New declaration.
* linux-nat.c (linux_nat_delete_thread): New variable.
(lwp_free): Invoke linux_nat_delete_thread if set.
(linux_nat_set_delete_thread): New function.
* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Assign
thread delete callback.
* arm-linux-nat.c (arm_linux_delete_thread): New function.
(_initialize_arm_linux_nat): Assign thread delete callback.
* s390-linux-nat.c (s390_delete_thread): New function.
(_initialize_s390_nat): Assign thread delete callback.
* x86-linux-nat.c (x86_linux_add_target): Likewise.
* nat/aarch64-linux.c (aarch64_linux_delete_thread): New
function.
* nat/aarch64-linux.h (aarch64_linux_delete_thread): New
declaration.
* nat/x86-linux.c (x86_linux_delete_thread): New function.
* nat/x86-linux.h (x86_linux_delete_thread): New declaration.
gdb/gdbserver/ChangeLog:
* linux-aarch64-low.c (the_low_target): Add thread delete
callback.
* linux-arm-low.c (arm_delete_thread): New function.
(the_low_target): Add thread delete callback.
* linux-bfin-low.c (the_low_target): Likewise.
* linux-crisv32-low.c (the_low_target): Likewise.
* linux-low.c (delete_lwp): Invoke delete_thread callback if
set.
* linux-low.h (struct linux_target_ops) <delete_thread>: New
field.
* linux-m32r-low.c (the_low_target): Add thread delete callback.
* linux-mips-low.c (mips_linux_delete_thread): New function.
(the_low_target): Add thread delete callback.
* linux-ppc-low.c (the_low_target): Likewise.
* linux-s390-low.c (the_low_target): Likewise.
* linux-sh-low.c (the_low_target): Likewise.
* linux-tic6x-low.c (the_low_target): Likewise.
* linux-tile-low.c (the_low_target): Likewise.
* linux-x86-low.c (the_low_target): Likewise.
* linux-xtensa-low.c (the_low_target): Likewise.
2017-10-12 22:48:22 +02:00
|
|
|
/* Function to call when a thread is being deleted. */
|
|
|
|
void aarch64_linux_delete_thread (struct arch_lwp_info *arch_lwp);
|
|
|
|
|
2016-08-25 09:42:03 +02:00
|
|
|
ps_err_e aarch64_ps_get_thread_area (struct ps_prochandle *ph,
|
2015-09-18 14:59:42 +02:00
|
|
|
lwpid_t lwpid, int idx, void **base,
|
|
|
|
int is_64bit_p);
|
|
|
|
|
2015-08-25 12:38:29 +02:00
|
|
|
#endif /* AARCH64_LINUX_H */
|