/usr/lib/grub/i386-pc/config.h is in grub-pc-bin 1.99-21ubuntu3.19.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #undef _LARGEFILE_SOURCE
#undef _FILE_OFFSET_BITS
#define _LARGEFILE_SOURCE
#define _FILE_OFFSET_BITS 64
#if defined (GRUB_UTIL) || !defined (GRUB_MACHINE)
#include <config-util.h>
#define NESTED_FUNC_ATTR
#else
/* Define if C symbols get an underscore after compilation. */
#define HAVE_ASM_USCORE 0
/* Define it to \"addr32\" or \"addr32;\" to make GAS happy. */
#define ADDR32 addr32
/* Define it to \"data32\" or \"data32;\" to make GAS happy. */
#define DATA32 data32
/* Define it to one of __bss_start, edata and _edata. */
#define BSS_START_SYMBOL __bss_start
/* Define it to either end or _end. */
#define END_SYMBOL end
/* Name of package. */
#define PACKAGE "grub"
/* Version number of package. */
#define VERSION "1.99"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "GRUB 1.99-21ubuntu3.19"
/* Define to the version of this package. */
#define PACKAGE_VERSION "1.99-21ubuntu3.19"
/* Define to the full name of this package. */
#define PACKAGE_NAME "GRUB"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "bug-grub@gnu.org"
/* Default boot directory name" */
#define GRUB_BOOT_DIR_NAME "boot"
/* Default grub directory name */
#define GRUB_DIR_NAME "grub"
/* Define to 1 if GCC generates calls to __enable_execute_stack(). */
#define NEED_ENABLE_EXECUTE_STACK 0
/* Define to 1 if GCC generates calls to __register_frame_info(). */
#define NEED_REGISTER_FRAME_INFO 0
#if defined(__i386__)
#define NESTED_FUNC_ATTR __attribute__ ((__regparm__ (1)))
#else
#define NESTED_FUNC_ATTR
#endif
#endif
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