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binutils-gdb/gdbsupport/config.in
Simon Marchi c884cc4619 gdb: remove HAVE_DECL_PTRACE 
I stumbled on this snippet in nat/gdb_ptrace.h:

    /* 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.  */

    #ifndef HAVE_DECL_PTRACE
    extern PTRACE_TYPE_RET ptrace();
    #endif

I believe this is unnecessary today and should be removed.  First, the
comment only mentions OSes we don't support (and to be honest, I had
never even heard of).

But most importantly, in C++, a declaration with empty parenthesis
declares a function that accepts no arguments, unlike in C.  So if this
declaration was really used, GDB wouldn't build, since all ptrace call
sites pass some arguments.  Since we haven't heard anything about this
causing some build failures since we have transitioned to C++, I
conclude that it's not used.

This patch removes it as well as the corresponding configure check.

gdb/ChangeLog:

	* ptrace.m4: Don't check for ptrace declaration.
	* config.in: Re-generate.
	* configure: Re-generate.
	* nat/gdb_ptrace.h: Don't declare ptrace if HAVE_DECL_PTRACE is
	not defined.

gdbserver/ChangeLog:

	* config.in: Re-generate.
	* configure: Re-generate.

gdbsupport/ChangeLog:

	* config.in: Re-generate.
	* configure: Re-generate.
2020-03-20 11:57:49 -04:00

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/* config.in. Generated from configure.ac by autoheader. */
/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP
systems. This function is required for `alloca.c' support on those systems.
*/
#undef CRAY_STACKSEG_END
/* Define to 1 if std::thread works. */
#undef CXX_STD_THREAD
/* Define to 1 if using `alloca.c'. */
#undef C_ALLOCA
/* Define to 1 if translation of program messages to the user's native
language is requested. */
#undef ENABLE_NLS
/* Define if self-testing features should be enabled */
#undef GDB_SELF_TEST
/* Define to 1 if you have `alloca', as a function or macro. */
#undef HAVE_ALLOCA
/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
*/
#undef HAVE_ALLOCA_H
/* define if the compiler supports basic C++11 syntax */
#undef HAVE_CXX11
/* Define to 1 if you have the declaration of `ADDR_NO_RANDOMIZE', and to 0 if
you don't. */
#undef HAVE_DECL_ADDR_NO_RANDOMIZE
/* Define to 1 if you have the declaration of `asprintf', and to 0 if you
don't. */
#undef HAVE_DECL_ASPRINTF
/* Define to 1 if you have the declaration of `basename(char *)', and to 0 if
you don't. */
#undef HAVE_DECL_BASENAME
/* Define to 1 if you have the declaration of `ffs', and to 0 if you don't. */
#undef HAVE_DECL_FFS
/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
don't. */
#undef HAVE_DECL_SNPRINTF
/* Define to 1 if you have the declaration of `strstr', and to 0 if you don't.
*/
#undef HAVE_DECL_STRSTR
/* Define to 1 if you have the declaration of `strtol', and to 0 if you don't.
*/
#undef HAVE_DECL_STRTOL
/* Define to 1 if you have the declaration of `strtoll', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOLL
/* Define to 1 if you have the declaration of `strtoul', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOUL
/* Define to 1 if you have the declaration of `strtoull', and to 0 if you
don't. */
#undef HAVE_DECL_STRTOULL
/* Define to 1 if you have the declaration of `strverscmp', and to 0 if you
don't. */
#undef HAVE_DECL_STRVERSCMP
/* Define to 1 if you have the declaration of `vasprintf', and to 0 if you
don't. */
#undef HAVE_DECL_VASPRINTF
/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
don't. */
#undef HAVE_DECL_VSNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define if <sys/procfs.h> has elf_fpregset_t. */
#undef HAVE_ELF_FPREGSET_T
/* Define to 1 if you have the `fdwalk' function. */
#undef HAVE_FDWALK
/* Define to 1 if you have the `fork' function. */
#undef HAVE_FORK
/* Define if <sys/procfs.h> has fpregset_t. */
#undef HAVE_FPREGSET_T
/* Define to 1 if you have the `getauxval' function. */
#undef HAVE_GETAUXVAL
/* Define to 1 if you have the `getpagesize' function. */
#undef HAVE_GETPAGESIZE
/* Define to 1 if you have the `getrlimit' function. */
#undef HAVE_GETRLIMIT
/* Define to 1 if you have the `getrusage' function. */
#undef HAVE_GETRUSAGE
/* Define if <sys/procfs.h> has gregset_t. */
#undef HAVE_GREGSET_T
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define to 1 if your system has the kinfo_getfile function. */
#undef HAVE_KINFO_GETFILE
/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
#undef HAVE_LANGINFO_CODESET
/* Define if you have the ipt library. */
#undef HAVE_LIBIPT
/* Define to 1 if you have the <linux/elf.h> header file. */
#undef HAVE_LINUX_ELF_H
/* Define to 1 if you have the <linux/perf_event.h> header file. */
#undef HAVE_LINUX_PERF_EVENT_H
/* Define to 1 if you have the <locale.h> header file. */
#undef HAVE_LOCALE_H
/* Define to 1 if the system has the type `long long'. */
#undef HAVE_LONG_LONG
/* Define if <sys/procfs.h> has lwpid_t. */
#undef HAVE_LWPID_T
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have a working `mmap' system call. */
#undef HAVE_MMAP
/* Define if you support the personality syscall. */
#undef HAVE_PERSONALITY
/* Define to 1 if you have the `pipe' function. */
#undef HAVE_PIPE
/* Define to 1 if you have the `pipe2' function. */
#undef HAVE_PIPE2
/* Define if <sys/procfs.h> has prfpregset_t. */
#undef HAVE_PRFPREGSET_T
/* Define if <sys/procfs.h> has prgregset32_t. */
#undef HAVE_PRGREGSET32_T
/* Define if <sys/procfs.h> has prgregset_t. */
#undef HAVE_PRGREGSET_T
/* Define to 1 if you have the <proc_service.h> header file. */
#undef HAVE_PROC_SERVICE_H
/* Define if <sys/procfs.h> has psaddr_t. */
#undef HAVE_PSADDR_T
/* Have PTHREAD_PRIO_INHERIT. */
#undef HAVE_PTHREAD_PRIO_INHERIT
/* Define to 1 if you have the `pthread_setname_np' function. */
#undef HAVE_PTHREAD_SETNAME_NP
/* Define to 1 if you have the `pthread_sigmask' function. */
#undef HAVE_PTHREAD_SIGMASK
/* Define to 1 if you have the `ptrace64' function. */
#undef HAVE_PTRACE64
/* Define to 1 if you have the <ptrace.h> header file. */
#undef HAVE_PTRACE_H
/* Define to 1 if you have the `pt_insn_event' function. */
#undef HAVE_PT_INSN_EVENT
/* Define to 1 if you have the `sbrk' function. */
#undef HAVE_SBRK
/* Define to 1 if you have the `setns' function. */
#undef HAVE_SETNS
/* Define to 1 if you have the `setpgid' function. */
#undef HAVE_SETPGID
/* Define to 1 if you have the `setpgrp' function. */
#undef HAVE_SETPGRP
/* Define to 1 if you have the `sigaction' function. */
#undef HAVE_SIGACTION
/* Define to 1 if you have the `sigaltstack' function. */
#undef HAVE_SIGALTSTACK
/* Define to 1 if you have the <signal.h> header file. */
#undef HAVE_SIGNAL_H
/* Define to 1 if you have the `sigprocmask' function. */
#undef HAVE_SIGPROCMASK
/* Define if sigsetjmp is available. */
#undef HAVE_SIGSETJMP
/* Define to 1 if you have the `socketpair' function. */
#undef HAVE_SOCKETPAIR
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
/* Define to 1 if you have the <stdlib.h> header file. */
#undef HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#undef HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#undef HAVE_STRING_H
/* Define to 1 if `enabled' is a member of `struct pt_insn'. */
#undef HAVE_STRUCT_PT_INSN_ENABLED
/* Define to 1 if `resynced' is a member of `struct pt_insn'. */
#undef HAVE_STRUCT_PT_INSN_RESYNCED
/* Define to 1 if `st_blksize' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_BLKSIZE
/* Define to 1 if `st_blocks' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_BLOCKS
/* Define to 1 if you have the <sys/param.h> header file. */
#undef HAVE_SYS_PARAM_H
/* Define to 1 if you have the <sys/procfs.h> header file. */
#undef HAVE_SYS_PROCFS_H
/* Define to 1 if you have the <sys/ptrace.h> header file. */
#undef HAVE_SYS_PTRACE_H
/* Define to 1 if you have the <sys/resource.h> header file. */
#undef HAVE_SYS_RESOURCE_H
/* Define to 1 if you have the <sys/socket.h> header file. */
#undef HAVE_SYS_SOCKET_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have the <sys/un.h> header file. */
#undef HAVE_SYS_UN_H
/* Define to 1 if you have the <sys/wait.h> header file. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the <termios.h> header file. */
#undef HAVE_TERMIOS_H
/* Define to 1 if you have the <thread_db.h> header file. */
#undef HAVE_THREAD_DB_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the `vfork' function. */
#undef HAVE_VFORK
/* Define to 1 if you have the <vfork.h> header file. */
#undef HAVE_VFORK_H
/* Define to 1 if you have the <wait.h> header file. */
#undef HAVE_WAIT_H
/* Define to 1 if you have the <windows.h> header file. */
#undef HAVE_WINDOWS_H
/* Define to 1 if `fork' works. */
#undef HAVE_WORKING_FORK
/* Define to 1 if `vfork' works. */
#undef HAVE_WORKING_VFORK
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
#undef PTHREAD_CREATE_JOINABLE
/* Define to the type of arg 1 for ptrace. */
#undef PTRACE_TYPE_ARG1
/* Define to the type of arg 3 for ptrace. */
#undef PTRACE_TYPE_ARG3
/* Define to the type of arg 4 for ptrace. */
#undef PTRACE_TYPE_ARG4
/* Define to the type of arg 5 for ptrace. */
#undef PTRACE_TYPE_ARG5
/* Define as the return type of ptrace. */
#undef PTRACE_TYPE_RET
/* The size of `long long', as computed by sizeof. */
#undef SIZEOF_LONG_LONG
/* If using the C implementation of alloca, define if you know the
direction of stack growth for your system; otherwise it will be
automatically deduced at runtime.
STACK_DIRECTION > 0 => grows toward higher addresses
STACK_DIRECTION < 0 => grows toward lower addresses
STACK_DIRECTION = 0 => direction of growth unknown */
#undef STACK_DIRECTION
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Define to the word size for the target. */
#undef TARGET_WORD_SIZE
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# undef _GNU_SOURCE
#endif
/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# undef _POSIX_PTHREAD_SEMANTICS
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# undef _TANDEM_SOURCE
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# undef __EXTENSIONS__
#endif
/* Define if we should use the Windows API, instead of the POSIX API. On
Windows, we use the Windows API when building for MinGW, but the POSIX API
when building for Cygwin. */
#undef USE_WIN32API
/* Version number of package */
#undef VERSION
/* Enable large inode numbers on Mac OS X 10.5. */
#ifndef _DARWIN_USE_64_BIT_INODE
# define _DARWIN_USE_64_BIT_INODE 1
#endif
/* Number of bits in a file offset, on hosts where this is settable. */
#undef _FILE_OFFSET_BITS
/* Define for large files, on AIX-style hosts. */
#undef _LARGE_FILES
/* Define to 1 if on MINIX. */
#undef _MINIX
/* Define to 2 if the system does not provide POSIX.1 features except with
this defined. */
#undef _POSIX_1_SOURCE
/* Define to 1 if you need to in order for `stat' and other things to work. */
#undef _POSIX_SOURCE
/* Define to `int' if <sys/types.h> does not define. */
#undef pid_t
/* Define to `unsigned int' if <sys/types.h> does not define. */
#undef size_t
/* Define as `fork' if `vfork' does not work. */
#undef vfork
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