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binutils-gdb/binutils/config.in
Simon Marchi 2952f10cd7 binutils/readelf: build against msgpack, dump NT_AMDGPU_METADATA note contents 
The AMDGPU HSA OS ABI (code object v3 and above) defines the
NT_AMDGPU_METADATA ELF note [1].  The content is a msgpack object
describing, among other things, the kernels present in the code object
and how to call them.

I think it would be useful for readelf to be able to display the content
of those notes.  msgpack is a structured format, a bit like JSON, except
not text-based.  It is therefore possible to dump the contents in
human-readable form without knowledge of the specific layout of the
note.

Add configury to binutils to optionally check for the msgpack C library
[2].  Add There is a new --with{,out}-msgpack configure flag, and the actual
library lookup is done using pkg-config.

If msgpack support is enabled, dumping a NT_AMDGPU_METADATA note looks
like:

    $ readelf --notes amdgpu-code-object
    Displaying notes found in: .note
      Owner                Data size        Description
      AMDGPU               0x0000040d       NT_AMDGPU_METADATA (code object metadata)
        {
          "amdhsa.kernels": [
            {
              ".args": [
                {
                  ".address_space": "global",
                  ".name": "out.coerce",
                  ".offset": 0,
                  ".size": 8,
                  ".value_kind": "global_buffer",
                },
      <snip>

If msgpack support is disabled, dump the contents as hex, as is done
with notes that are not handled in a special way.  This allows one to
decode the contents manually (maybe using a command-line msgpack
decoder) if really needed.

[1] https://llvm.org/docs/AMDGPUUsage.html#code-object-metadata
[2] https://github.com/msgpack/msgpack-c/tree/c_master

binutils/ChangeLog:

	* Makefile.am (readelf_CFLAGS): New.
	(readelf_LDADD): Add MSGPACK_LIBS.
	* Makefile.in: Re-generate.
	* config.in: Re-generate.
	* configure: Re-generate.
	* configure.ac: Add --with-msgpack flag and check for msgpack
	using pkg-config.
	* readelf.c: Include msgpack.h if HAVE_MSGPACK.
	(print_note_contents_hex): New.
	(print_indents): New.
	(dump_msgpack_obj): New.
	(dump_msgpack): New.
	(print_amdgpu_note): New.
	(process_note): Handle NT_AMDGPU_METADATA note contents.
	Use print_note_contents_hex.

Change-Id: Ia60a654e620bc32dfdb1bccd845594e2af328b84
2022-03-16 09:01:43 -04:00

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/* config.in. Generated from configure.ac by autoheader. */
/* Check that config.h is #included before system headers
(this works only for glibc, but that should be enough). */
#if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
# error config.h must be #included before system headers
#endif
#define __CONFIG_H__ 1
/* Should ar and ranlib use -D behavior by default? */
#undef DEFAULT_AR_DETERMINISTIC
/* Have readelf and objdump follow debug links by default */
#undef DEFAULT_FOR_FOLLOW_LINKS
/* Have nm use F and f for global and local ifunc symbols */
#undef DEFAULT_F_FOR_IFUNC_SYMBOLS
/* Should strings use -a behavior by default? */
#undef DEFAULT_STRINGS_ALL
/* Define if you want run-time sanity checks. */
#undef ENABLE_CHECKING
/* Handle .ctf type-info sections */
#undef ENABLE_LIBCTF
/* Define to 1 if translation of program messages to the user's native
language is requested. */
#undef ENABLE_NLS
/* Suffix used for executables, if any. */
#undef EXECUTABLE_SUFFIX
/* 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 `environ', and to 0 if you
don't. */
#undef HAVE_DECL_ENVIRON
/* Define to 1 if you have the declaration of `getc_unlocked', and to 0 if you
don't. */
#undef HAVE_DECL_GETC_UNLOCKED
/* Is the prototype for getopt in <unistd.h> in the expected format? */
#undef HAVE_DECL_GETOPT
/* Define to 1 if you have the declaration of `sbrk', and to 0 if you don't.
*/
#undef HAVE_DECL_SBRK
/* Define to 1 if you have the declaration of `stpcpy', and to 0 if you don't.
*/
#undef HAVE_DECL_STPCPY
/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
don't. */
#undef HAVE_DECL_STRNLEN
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Does the platform use an executable suffix? */
#undef HAVE_EXECUTABLE_SUFFIX
/* Define to 1 if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define to 1 if you have the `getc_unlocked' function. */
#undef HAVE_GETC_UNLOCKED
/* Define to 1 if you have the `getpagesize' function. */
#undef HAVE_GETPAGESIZE
/* Does <utime.h> define struct utimbuf? */
#undef HAVE_GOOD_UTIME_H
/* Define if you have the iconv() function. */
#undef HAVE_ICONV
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define if your <locale.h> file defines LC_MESSAGES. */
#undef HAVE_LC_MESSAGES
/* Define to 1 if debuginfod is enabled. */
#undef HAVE_LIBDEBUGINFOD
/* Define if mbstate_t exists in wchar.h. */
#undef HAVE_MBSTATE_T
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
/* Define to 1 if you have the `mkdtemp' function. */
#undef HAVE_MKDTEMP
/* Define to 1 if you have the `mkstemp' function. */
#undef HAVE_MKSTEMP
/* Define to 1 if you have a working `mmap' system call. */
#undef HAVE_MMAP
/* Define to 1 if msgpack is available. */
#undef HAVE_MSGPACK
/* Define to 1 if you have the `sbrk' function. */
#undef HAVE_SBRK
/* 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 `st_atimensec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIMENSEC
/* Define to 1 if `st_atimespec.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC
/* Define to 1 if `st_atim.st__tim.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIM_ST__TIM_TV_NSEC
/* Define to 1 if `st_atim.tv_nsec' is a member of `struct stat'. */
#undef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
/* Define to 1 if you have the <sys/file.h> header file. */
#undef HAVE_SYS_FILE_H
/* 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/stat.h> header file. */
#undef HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/time.h> header file. */
#undef HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#undef HAVE_SYS_TYPES_H
/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
#undef HAVE_SYS_WAIT_H
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the `utimensat' function. */
#undef HAVE_UTIMENSAT
/* Define to 1 if you have the `utimes' function. */
#undef HAVE_UTIMES
/* Define to 1 if you have the <windows.h> header file. */
#undef HAVE_WINDOWS_H
/* Define as const if the declaration of iconv() needs const. */
#undef ICONV_CONST
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
#undef LT_OBJDIR
/* 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
/* The size of `long', as computed by sizeof. */
#undef SIZEOF_LONG
/* The size of `long long', as computed by sizeof. */
#undef SIZEOF_LONG_LONG
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS
/* Configured target name. */
#undef TARGET
/* Define to 1 if user symbol names have a leading underscore, 0 if not. */
#undef TARGET_PREPENDS_UNDERSCORE
/* Define to 1 if the type of the st_atim member of a struct stat is struct
timespec. */
#undef TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC
/* Use b modifier when opening binary files? */
#undef USE_BINARY_FOPEN
/* 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
/* Version number of package */
#undef VERSION
/* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
`char[]'. */
#undef YYTEXT_POINTER
/* 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
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