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old-cross-binutils/gdb/nat/gdb_ptrace.h

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* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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/* Portable <sys/ptrace.h>
GDB copyright headers update after running GDB's copyright.py script. gdb/ChangeLog: Update year range in copyright notice of all files.
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Copyright (C) 2004-2016 Free Software Foundation, Inc.
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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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
Switch the license of all .c files to GPLv3. Switch the license of all .h files to GPLv3. Switch the license of all .cc files to GPLv3.
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the Free Software Foundation; either version 3 of the License, or
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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(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
Switch the license of all .c files to GPLv3. Switch the license of all .h files to GPLv3. Switch the license of all .cc files to GPLv3.
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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#ifndef GDB_PTRACE_H
#define GDB_PTRACE_H
/* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided
the PT_* symbolic constants for the ptrace(2) request numbers. The
ptrace(2) prototype was added later to the same header on BSD.
* gdb_ptrace.h: GNU/Linux.
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SunOS and GNU/Linux have slightly different symbolic names for the
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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constants that start with PTRACE_*. System V still doesn't have
(and probably never will have) a <sys/ptrace.h> with symbolic
constants; the ptrace(2) prototype can be found in <unistd.h>.
Fortunately all systems use the same numerical constants for the
common ptrace requests. */
#ifdef HAVE_PTRACE_H
# include <ptrace.h>
#elif defined(HAVE_SYS_PTRACE_H)
# include <sys/ptrace.h>
#endif
/* No need to include <unistd.h> since it's already included by
"defs.h". */
* gdb_ptrace.h (PT_TRACE_ME): Define to zero if not already defined. * inf-ptrace.c: Tweak comments. (inf_ptrace_me): Use PT_TRACE_ME instead of hardcoded zero. (inf_ptrace_mourn_inferior): Call waitpid. (inf_ptrace_attach): Use pid_t, Remove unnecessary cast. (inf_ptrace_detach): Use pid_t. Use ptid_get_pid instead of PIDGET. (inf_ptrace_kill): Rename from inf_ptrace_kill_inferior. Use pid_t. Use ptid_get_pid instead of PIDGET. (inf_ptrace_kill): Call waitpid instead of wait. (inf_ptrace_resume): Use pid_t. Use ptid_get_pid instead of PIDGET. (inf_ptrace_wait): Use waitpid instead wait. Use pid_t. Don't call target_has_exited or target_thread_alive. Properly ignore terminated detached child processes. (inf_ptrace_has_exited): Remove function. (inf_ptrace_xfer_partial): Use pid_t. Use ptid_get_pid instead of PIDGET. Use gdb_byte instead of `unsigned char'. (inf_ptrace_thread_alive): Use ptid_get_pid instead of PIDGET. (inf_ptrace_pid_to_str): Remove function. (inf_ptrace_target): Use inf_ptrace_kill instead of inf_ptrace_kill_inferior. Use normal_pid_to_str instead of inf_ptrace_pid_to_str. Don't set to_has_exited. (inf_ptrace_fetch_register, inf_ptrace_store_register): Reformat long lines.
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#ifndef PT_TRACE_ME
# define PT_TRACE_ME 0
#endif
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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#ifndef PT_READ_I
# define PT_READ_I 1 /* Read word in child's I space. */
#endif
#ifndef PT_READ_D
# define PT_READ_D 2 /* Read word in child's D space. */
#endif
#ifndef PT_READ_U
# define PT_READ_U 3 /* Read word in child's U space. */
#endif
#ifndef PT_WRITE_I
# define PT_WRITE_I 4 /* Write word in child's I space. */
#endif
#ifndef PT_WRITE_D
# define PT_WRITE_D 5 /* Write word in child's D space. */
#endif
#ifndef PT_WRITE_U
# define PT_WRITE_U 6 /* Write word in child's U space. */
#endif
/* HP-UX doesn't define PT_CONTINUE and PT_STEP. Instead of those two
ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and
PT_SINGLE1. PT_CONTIN1 and PT_SINGLE1 preserve pending signals,
which apparently is what is wanted by the HP-UX native code. */
#ifndef PT_CONTINUE
# ifdef PT_CONTIN1
# define PT_CONTINUE PT_CONTIN1
# else
# define PT_CONTINUE 7 /* Continue the child. */
# endif
#endif
#ifndef PT_KILL
# define PT_KILL 8 /* Kill the child process. */
#endif
#ifndef PT_STEP
# ifdef PT_SINGLE1
# define PT_STEP PT_SINGLE1
# else
# define PT_STEP 9 /* Single step the child. */
# endif
#endif
/* Not all systems support attaching and detaching. */
* gdb_ptrace.h: Fix typos when checking for PT_ATTACH. Reported by Chad Harrington <harrington.chad@gmail.com>.
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#ifndef PT_ATTACH
# ifdef PTRACE_ATTACH
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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# define PT_ATTACH PTRACE_ATTACH
# endif
#endif
#ifndef PT_DETACH
# ifdef PTRACE_DETACH
# define PT_DETACH PTRACE_DETACH
# endif
#endif
Fix a build failure on pa-hpux: * gdb_ptrace.h (PT_SYSCALL): Define here if not already defined. * inf-ttrace.c (inf_ttrace_wait): Fix compilation failure introduced after field syscall_id inside struct target_waitstatus has been renamed into syscall_number.
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/* For systems such as HP/UX that do not provide PT_SYSCALL, define it
here as an alias for PT_CONTINUE. This is what the PT_SYSCALL
request is expected to do, in addition to stopping when entering/
exiting a system call. Chances are, if the system supports system
call tracing, enabling this feature is probably done separately;
and there is probably no special request that we would be required
to use when resuming the execution of our program. */
#ifndef PT_SYSCALL
gdb: Add sparc*-*-linux catch syscall support. 2010-02-24 David S. Miller <davem@davemloft.net> * gdb_ptrace.h (PT_SYSCALL): If PTRACE_SYSCALL is available, use it. * syscalls/sparc-linux.xml: New. * syscalls/sparc64-linux.xml: New. * Makefile.in (XML_SYSCALL_FILES): Add new syscall XML files. * sparc-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC32): Define. (sparc32_linux_get_syscall_number): New function. (sparc32_linux_init_abi): Set syscall XML file name and hook up syscall number fetcher. * sparc64-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC64): Define. (sparc64_linux_get_syscall_number): New function. (sparc64_linux_init_abi): Set syscall XML file name and hook up syscall number fetcher.
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# ifdef PTRACE_SYSCALL
# define PT_SYSCALL PTRACE_SYSCALL
#else
# define PT_SYSCALL PT_CONTINUE
# endif
Fix a build failure on pa-hpux: * gdb_ptrace.h (PT_SYSCALL): Define here if not already defined. * inf-ttrace.c (inf_ttrace_wait): Fix compilation failure introduced after field syscall_id inside struct target_waitstatus has been renamed into syscall_number.
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#endif
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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/* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64
or whatever it's called these days, don't provide a prototype for
ptrace. Provide one to silence compiler warnings. */
* gdb_ptrace.h [PTRACE_TYPE_ARG5] (ptrace): New macro. * infptrace.c (call_ptrace): Simply call ptrace with four arguments.
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* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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#ifndef HAVE_DECL_PTRACE
extern PTRACE_TYPE_RET ptrace();
#endif
* gdb_ptrace.h [PTRACE_TYPE_ARG5] (ptrace): New macro. * infptrace.c (call_ptrace): Simply call ptrace with four arguments.
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/* Some systems, at least AIX and HP-UX have a ptrace with five
arguments. Since we never use the fifth argument, define a ptrace
macro that calls the real ptrace with the last argument set to
zero. */
#ifdef PTRACE_TYPE_ARG5
2013-08-07 Raunaq Bathija <raunaq12@in.ibm.com> Ulrich Weigand <uweigand@de.ibm.com> * gdb_ptrace.h: Use ptrace64 instead of ptrace if HAVE_PTRACE64 is defined. * rs6000-nat.c: Check for __ld_info64_ if compiling 64 BIT gdb. (rs6000_ptrace32): Call ptrace64 instead of ptrace if present. (rs6000_ptrace64): Call ptace64 instead of ptracex if present. * configure.ac: Check for ptrace64. * configure, config.in: Regenerate.
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# ifdef HAVE_PTRACE64
# define ptrace(request, pid, addr, data) \
ptrace64 (request, pid, addr, data, 0)
# undef PTRACE_TYPE_ARG3
# define PTRACE_TYPE_ARG3 long long
# else
# define ptrace(request, pid, addr, data) \
ptrace (request, pid, addr, data, 0)
# endif
C++: handle glibc's ptrace(enum __ptrace_request, ...) Building in C++ mode issues ~40 warnings like this: ../../src/gdb/linux-nat.c: In function ‘int linux_handle_extended_wait(lwp_info*, int, int)’: ../../src/gdb/linux-nat.c:2016:51: warning: invalid conversion from ‘int’ to ‘__ptrace_request’ [-fpermissive] ptrace (PTRACE_GETEVENTMSG, pid, 0, &new_pid); The issue is that in glibc, ptrace's first parameter is an enum. That's not a problem if we pick the PTRACE_XXX requests from sys/ptrace.h, as those will be values of the corresponding enum. However, we have fallback definitions for PTRACE_XXX symbols when the system headers miss them (such as PTRACE_GETEVENTMSG above), and those are plain integer constants. E.g., nat/linux-ptrace.h: #define PTRACE_GETEVENTMSG 0x4201 One idea would be to fix this by defining those fallbacks like: -#define PTRACE_GETEVENTMSG 0x4201 +#define PTRACE_GETEVENTMSG ((enum __ptrace_request) 0x4201) However, while glibc's ptrace uses enum __ptrace_request for first parameter: extern long int ptrace (enum __ptrace_request __request, ...) __THROW; other libc's, like e.g., Android's bionic do not -- in that case, the first parameter is int: long ptrace(int request, pid_t pid, void * addr, void * data); So the fix I came up is to make configure/ptrace.m4 also detect the type of the ptrace's first parameter and defin PTRACE_TYPE_ARG1, as already does the for parameters 3-4, and then simply wrap ptrace with a macro that casts the first argument to the detected type. (I'm leaving adding a nicer wrapper for when we drop building in C). While this adds the wrapper, GNU/Linux files won't use it until the next patch, which makes all native GNU/Linux files include gdb_ptrace.h. gdb/ChangeLog: 2015-07-24 Pedro Alves <palves@redhat.com> * ptrace.m4 (ptrace tests): Test in C++ mode. Try with 'enum __ptrace_request as first parameter type instead of int. (PTRACE_TYPE_ARG1): Define. * nat/gdb_ptrace.h [!PTRACE_TYPE_ARG5] (ptrace): Define as wrapper that casts first argument to PTRACE_TYPE_ARG1. * config.in: Regenerate. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-07-24 Pedro Alves <palves@redhat.com> * config.in: Regenerate. * configure: Regenerate.
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#else
/* Wrapper that avoids adding a pointless cast to all callers. */
# define ptrace(request, pid, addr, data) \
ptrace ((PTRACE_TYPE_ARG1) request, pid, addr, data)
* gdb_ptrace.h [PTRACE_TYPE_ARG5] (ptrace): New macro. * infptrace.c (call_ptrace): Simply call ptrace with four arguments.
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#endif
* gdb_ptrace.h: New file. * infptrace.c: Include "gdb_ptrace.h" instead of <ptrace.h> or <sys/ptrace.h>. (PT_READ_I, PT_READ_D, PT_READ_U, PT_WRITE_I, PT_WRITE_D) (PT_WRITE_U, PT_CONTINUE, PT_STEP, PT_KILL): Remove defines. (attach): Don't define PT_ATTACH. (detach): Don't define PT_DETACH. * Makefile.in (gdb_ptrace_h): New variable. (infptrace.o): Update dependencies.
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#endif /* gdb_ptrace.h */
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