source: MondoRescue/branches/stable/mindi-busybox/include/platform.h @ 1770

Last change on this file since 1770 was 1770, checked in by Bruno Cornec, 12 years ago
  • Better output for mindi-busybox revision
  • Remove dummy file created on NFS - report from Arnaud Tiger <arnaud.tiger_at_hp.com>
  • strace useful for debug
  • fix new versions for pb (2.0.0 for mindi and 1.7.2 for mindi-busybox)
  • fix build process for mindi-busybox + options used in that version (dd for label-partitions-as-necessary)
  • fix typo in label-partitions-as-necessary which doesn't seem to work
  • Update to busybox 1.7.2
  • perl is now required at restore time to support uuid swap partitions (and will be used for many other thigs

in the future for sure)

  • next mindi version will be 2.0.0 due to all the changes made in it (udev may break working distros)
  • small optimization in mindi on keyboard handling (one single find instead of multiple)
  • better interaction for USB device when launching mindi manually
  • attempt to automatically guess block disk size for ramdisk
  • fix typos in bkphw
  • Fix the remaining problem with UUID support for swap partitions
  • Updates mondoarchive man page for USB support
  • Adds preliminary Hardware support to mindi (Proliant SSSTK)
  • Tries to add udev support also for rhel4
  • Fix UUID support which was still broken.
  • Be conservative in test for the start-nfs script
  • Update config file for mindi-busybox for 1.7.2 migration
  • Try to run around a busybox bug (1.2.2 pb on inexistant links)
  • Add build content for mindi-busybox in pb
  • Remove distributions content for mindi-busybox
  • Fix a warning on inexistant raidtab
  • Solve problem on tmpfs in restore init (Problem of inexistant symlink and busybox)
  • Create MONDO_CACHE and use it everywhere + creation at start
  • Really never try to eject a USB device
  • Fix a issue with &> usage (replaced with 1> and 2>)
  • Adds magic file to depllist in order to have file working + ldd which helps for debugging issues
  • tty modes correct to avoid sh error messages
  • Use ext3 normally and not ext2 instead
  • USB device should be corrected after reading (take 1st part)
  • Adds a mount_USB_here function derived from mount_CDROM_here
  • usb detection place before /dev detection in device name at restore time
  • Fix when restoring from USB: media is asked in interactive mode
  • Adds USB support for mondorestore
  • mount_cdrom => mount_media
  • elilo.efi is now searched throughout /boot/efi and not in a fixed place as there is no standard
  • untar-and-softlink => untar (+ interface change)
  • suppress useless softlinks creation/removal in boot process
  • avoids udevd messages on groups
  • Increase # of disks to 99 as in mindi at restore time (should be a conf file parameter)
  • skip existing big file creation
  • seems to work correctly for USB mindi boot
  • Adds group and tty link to udev conf
  • Always load usb-torage (even 2.6) to initiate USB bus discovery
  • Better printing of messages
  • Attempt to fix a bug in supporting OpenSusE 10.3 kernel for initramfs (mindi may now use multiple regex for kernel initrd detection)
  • Links were not correctly done as non relative for modules in mindi
  • exclusion of modules denied now works
  • Also create modules in their ordinary place, so that classical modprobe works + copy modules.dep
  • Fix bugs for DENY_MODS handling
  • Add device /dev/console for udev
  • ide-generic should now really be excluded
  • Fix a bug in major number for tty
  • If udev then adds modprobe/insmod to rootfs
  • tty0 is also cretaed with udev
  • ide-generic put rather in DENY_MODS
  • udevd remove from deplist s handled in mindi directly
  • better default for mindi when using --usb
  • Handles dynamically linked busybox (in case we want to use it soon ;-)
  • Adds fixed devices to create for udev
  • ide-generic should not be part of the initrd when using libata v2
  • support a dynamically linked udev (case on Ubuntu 7.10 and Mandriva 2008.0 so should be quite generic) This will give incitation to move to dyn. linked binaries in the initrd which will help for other tasks (ia6 4)
  • Improvement in udev support (do not use cl options not available in busybox)
  • Udev in mindi
    • auto creation of the right links at boot time with udev-links.conf(from Mandriva 2008.0)
    • rework startup of udev as current makes kernel crash (from Mandriva 2008.0)
    • add support for 64 bits udev
  • Try to render MyInsmod? silent at boot time
  • Adds udev support (mandatory for newest distributions to avoid remapping of devices in a different way as on the original system)
  • We also need vaft format support for USB boot
  • Adds libusual support (Ubuntu 7.10 needs it for USB)
  • Improve Ubuntu/Debian? keyboard detection and support
  • pbinit adapted to new pb (0.8.10). Filtering of docs done in it
  • Suppress some mondo warnings and errors on USB again
  • Tries to fix lack of files in deb mindi package
  • Verify should now work for USB devices
  • More log/mesages improvement for USB support
  • - Supress g_erase_tmpdir_and_scratchdir
  • Improve some log messages for USB support
  • Try to improve install in mindi to avoid issues with isolinux.cfg not installed vene if in the pkg :-(
  • Improve mindi-busybox build
  • In conformity with pb 0.8.9
  • Add support for Ubuntu 7.10 in build process
  • Add USB Key button to Menu UI (CD streamer removed)
  • Attempt to fix error messages on tmp/scratch files at the end by removing those dir at the latest possible.
  • Fix a bug linked to the size of the -E param which could be used (Arnaud Tiger/René? Ribaud).
  • Integrate ~/.pbrc content into mondorescue.pb (required project-builder >= 0.8.7)
  • Put mondorescue in conformity with new pb filtering rules
  • Add USB support at restore time (no test done yet). New start-usb script PB varibale added where useful
  • Unmounting USB device before removal of temporary scratchdir
  • Stil refining USB copy back to mondo (one command was not executed)
  • No need to have the image subdor in the csratchdir when USB.
  • umount the USB partition before attempting to use it
  • Remove useless copy from mindi to mondo at end of USB handling

(risky merge, we are raising the limits of 2 diverging branches. The status of stable is not completely sure as such. Will need lots of tests, but it's not yet done :-()
(merge -r1692:1769 $SVN_M/branches/2.2.5)

File size: 8.9 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3   Copyright 2006, Bernhard Fischer
4
5   Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
6*/
7#ifndef __PLATFORM_H
8#define __PLATFORM_H    1
9
10/* Convenience macros to test the version of gcc. */
11#undef __GNUC_PREREQ
12#if defined __GNUC__ && defined __GNUC_MINOR__
13# define __GNUC_PREREQ(maj, min) \
14        ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
15#else
16# define __GNUC_PREREQ(maj, min) 0
17#endif
18
19/* __restrict is known in EGCS 1.2 and above. */
20#if !__GNUC_PREREQ (2,92)
21# ifndef __restrict
22#  define __restrict     /* Ignore */
23# endif
24#endif
25
26/* Define macros for some gcc attributes.  This permits us to use the
27   macros freely, and know that they will come into play for the
28   version of gcc in which they are supported.  */
29
30#if !__GNUC_PREREQ (2,7)
31# ifndef __attribute__
32#  define __attribute__(x)
33# endif
34#endif
35
36#undef inline
37#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
38/* it's a keyword */
39#else
40# if __GNUC_PREREQ (2,7)
41#  define inline __inline__
42# else
43#  define inline
44# endif
45#endif
46
47#ifndef __const
48# define __const const
49#endif
50
51# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
52# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
53# define ATTRIBUTE_PACKED __attribute__ ((__packed__))
54# define ATTRIBUTE_ALIGNED(m) __attribute__ ((__aligned__(m)))
55# if __GNUC_PREREQ (3,0)
56#  define ALWAYS_INLINE __attribute__ ((always_inline)) inline
57#  if !ENABLE_WERROR
58#   define ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
59#   define ATTRIBUTE_UNUSED_RESULT __attribute__ ((warn_unused_result))
60#  else
61#   define ATTRIBUTE_DEPRECATED /* n/a */
62#   define ATTRIBUTE_UNUSED_RESULT /* n/a */
63#  endif
64# else
65#  define ALWAYS_INLINE inline
66#  define ATTRIBUTE_DEPRECATED /* n/a */
67#  define ATTRIBUTE_UNUSED_RESULT /* n/a */
68# endif
69
70/* -fwhole-program makes all symbols local. The attribute externally_visible
71   forces a symbol global.  */
72# if __GNUC_PREREQ (4,1)
73#  define ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((__externally_visible__))
74# else
75#  define ATTRIBUTE_EXTERNALLY_VISIBLE
76# endif /* GNUC >= 4.1 */
77
78/* We use __extension__ in some places to suppress -pedantic warnings
79   about GCC extensions.  This feature didn't work properly before
80   gcc 2.8.  */
81#if !__GNUC_PREREQ (2,8)
82# ifndef __extension__
83#  define __extension__
84# endif
85#endif
86
87/* gcc-2.95 had no va_copy but only __va_copy. */
88#if !__GNUC_PREREQ (3,0)
89# include <stdarg.h>
90# if !defined va_copy && defined __va_copy
91#  define va_copy(d,s) __va_copy((d),(s))
92# endif
93#endif
94
95/* ---- Endian Detection ------------------------------------ */
96
97#if (defined __digital__ && defined __unix__)
98# include <sex.h>
99# define __BIG_ENDIAN__ (BYTE_ORDER == BIG_ENDIAN)
100# define __BYTE_ORDER BYTE_ORDER
101#elif !defined __APPLE__
102# include <byteswap.h>
103# include <endian.h>
104#endif
105
106#ifdef __BIG_ENDIAN__
107# define BB_BIG_ENDIAN 1
108# define BB_LITTLE_ENDIAN 0
109#elif __BYTE_ORDER == __BIG_ENDIAN
110# define BB_BIG_ENDIAN 1
111# define BB_LITTLE_ENDIAN 0
112#else
113# define BB_BIG_ENDIAN 0
114# define BB_LITTLE_ENDIAN 1
115#endif
116
117#if BB_BIG_ENDIAN
118#define SWAP_BE16(x) (x)
119#define SWAP_BE32(x) (x)
120#define SWAP_BE64(x) (x)
121#define SWAP_LE16(x) bswap_16(x)
122#define SWAP_LE32(x) bswap_32(x)
123#define SWAP_LE64(x) bswap_64(x)
124#else
125#define SWAP_BE16(x) bswap_16(x)
126#define SWAP_BE32(x) bswap_32(x)
127#define SWAP_BE64(x) bswap_64(x)
128#define SWAP_LE16(x) (x)
129#define SWAP_LE32(x) (x)
130#define SWAP_LE64(x) (x)
131#endif
132
133/* ---- Networking ------------------------------------------ */
134#ifndef __APPLE__
135# include <arpa/inet.h>
136#else
137# include <netinet/in.h>
138#endif
139
140#ifndef __socklen_t_defined
141typedef int socklen_t;
142#endif
143
144/* ---- Compiler dependent settings ------------------------- */
145#if (defined __digital__ && defined __unix__)
146# undef HAVE_MNTENT_H
147#else
148# define HAVE_MNTENT_H 1
149#endif /* ___digital__ && __unix__ */
150
151/* linux/loop.h relies on __u64. Make sure we have that as a proper type
152 * until userspace is widely fixed.  */
153#ifndef __GNUC__
154#if defined __INTEL_COMPILER
155__extension__ typedef __signed__ long long __s64;
156__extension__ typedef unsigned long long __u64;
157#endif /* __INTEL_COMPILER */
158#endif /* ifndef __GNUC__ */
159
160/*----- Kernel versioning ------------------------------------*/
161#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
162
163/* ---- miscellaneous --------------------------------------- */
164
165#if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ < 5 && \
166    !defined(__dietlibc__) && \
167    !defined(_NEWLIB_VERSION) && \
168    !(defined __digital__ && defined __unix__)
169# error "Sorry, this libc version is not supported :("
170#endif
171
172/* Don't perpetuate e2fsck crap into the headers.  Clean up e2fsck instead. */
173
174#if defined __GLIBC__ || defined __UCLIBC__ \
175    || defined __dietlibc__ || defined _NEWLIB_VERSION
176#include <features.h>
177#define HAVE_FEATURES_H
178#include <stdint.h>
179#define HAVE_STDINT_H
180#else
181/* Largest integral types.  */
182#if __BIG_ENDIAN__
183typedef long                intmax_t;
184typedef unsigned long       uintmax_t;
185#else
186__extension__
187typedef long long           intmax_t;
188__extension__
189typedef unsigned long long  uintmax_t;
190#endif
191#endif
192
193/* Size-saving "small" ints (arch-dependent) */
194#if defined(i386) || defined(__x86_64__) || defined(__mips__) || defined(__cris__)
195/* add other arches which benefit from this... */
196typedef signed char smallint;
197typedef unsigned char smalluint;
198#else
199/* for arches where byte accesses generate larger code: */
200typedef int smallint;
201typedef unsigned smalluint;
202#endif
203
204/* ISO C Standard:  7.16  Boolean type and values  <stdbool.h> */
205#if (defined __digital__ && defined __unix__)
206/* old system without (proper) C99 support */
207#define bool smalluint
208#else
209/* modern system, so use it */
210#include <stdbool.h>
211#endif
212
213/* Try to defeat gcc's alignment of "char message[]"-like data */
214#if 1 /* if needed: !defined(arch1) && !defined(arch2) */
215#define ALIGN1 __attribute__((aligned(1)))
216#define ALIGN2 __attribute__((aligned(2)))
217#else
218/* Arches which MUST have 2 or 4 byte alignment for everything are here */
219#define ALIGN1
220#define ALIGN2
221#endif
222
223
224/* uclibc does not implement daemon() for no-mmu systems.
225 * For 0.9.29 and svn, __ARCH_USE_MMU__ indicates no-mmu reliably.
226 * For earlier versions there is no reliable way to check if we are building
227 * for a mmu-less system; the user should pass EXTRA_CFLAGS="-DBB_NOMMU"
228 * on his own.
229 */
230#if defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \
231    __UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__
232#define BB_MMU 0
233#define BB_NOMMU 1
234#define USE_FOR_NOMMU(...) __VA_ARGS__
235#define USE_FOR_MMU(...)
236#else
237#define BB_MMU 1
238/* BB_NOMMU is not defined in this case! */
239#define USE_FOR_NOMMU(...)
240#define USE_FOR_MMU(...) __VA_ARGS__
241#endif
242
243/* Platforms that haven't got dprintf need to implement fdprintf() in
244 * libbb.  This would require a platform.c.  It's not going to be cleaned
245 * out of the tree, so stop saying it should be. */
246#if !defined(__dietlibc__)
247/* Needed for: glibc */
248/* Not needed for: dietlibc */
249/* Others: ?? (add as needed) */
250#define fdprintf dprintf
251#endif
252
253#if defined(__dietlibc__)
254static ALWAYS_INLINE char* strchrnul(const char *s, char c)
255{
256    while (*s && *s != c) ++s;
257    return (char*)s;
258}
259#endif
260
261/* Don't use lchown with glibc older than 2.1.x ... uClibc lacks it */
262#if (defined __GLIBC__ && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 1) || \
263    defined __UC_LIBC__
264# define lchown chown
265#endif
266
267/* THIS SHOULD BE CLEANED OUT OF THE TREE ENTIRELY */
268/* FIXME: fix tar.c! */
269#ifndef FNM_LEADING_DIR
270#define FNM_LEADING_DIR 0
271#endif
272
273#if (defined __digital__ && defined __unix__)
274#include <standards.h>
275#define HAVE_STANDARDS_H
276#include <inttypes.h>
277#define HAVE_INTTYPES_H
278#define PRIu32 "u"
279
280/* use legacy setpgrp(pid_t,pid_t) for now.  move to platform.c */
281#define bb_setpgrp() do { pid_t __me = getpid(); setpgrp(__me,__me); } while (0)
282
283#if !defined ADJ_OFFSET_SINGLESHOT && defined MOD_CLKA && defined MOD_OFFSET
284#define ADJ_OFFSET_SINGLESHOT (MOD_CLKA | MOD_OFFSET)
285#endif
286#if !defined ADJ_FREQUENCY && defined MOD_FREQUENCY
287#define ADJ_FREQUENCY MOD_FREQUENCY
288#endif
289#if !defined ADJ_TIMECONST && defined MOD_TIMECONST
290#define ADJ_TIMECONST MOD_TIMECONST
291#endif
292#if !defined ADJ_TICK && defined MOD_CLKB
293#define ADJ_TICK MOD_CLKB
294#endif
295
296#else
297#define bb_setpgrp() setpgrp()
298#endif
299
300#if defined(__linux__)
301#include <sys/mount.h>
302/* Make sure we have all the new mount flags we actually try to use. */
303#ifndef MS_BIND
304#define MS_BIND        (1<<12)
305#endif
306#ifndef MS_MOVE
307#define MS_MOVE        (1<<13)
308#endif
309#ifndef MS_RECURSIVE
310#define MS_RECURSIVE   (1<<14)
311#endif
312#ifndef MS_SILENT
313#define MS_SILENT      (1<<15)
314#endif
315
316/* The shared subtree stuff, which went in around 2.6.15. */
317#ifndef MS_UNBINDABLE
318#define MS_UNBINDABLE  (1<<17)
319#endif
320#ifndef MS_PRIVATE
321#define MS_PRIVATE     (1<<18)
322#endif
323#ifndef MS_SLAVE
324#define MS_SLAVE       (1<<19)
325#endif
326#ifndef MS_SHARED
327#define MS_SHARED      (1<<20)
328#endif
329
330
331#if !defined(BLKSSZGET)
332#define BLKSSZGET _IO(0x12, 104)
333#endif
334#if !defined(BLKGETSIZE64)
335#define BLKGETSIZE64 _IOR(0x12,114,size_t)
336#endif
337#endif
338
339#endif  /* platform.h   */
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