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a6826fbc5c
u-boot-brain/include
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Wolfgang Denk a6826fbc5c Add hash table support as base for new environment code 
This implementation is based on code from uClibc-0.9.30.3 but was
modified and extended for use within U-Boot.

Major modifications and extensions:

* hsearch() [modified / extended]:
  - While the standard version does not make any assumptions about
    the type of the stored data objects at all, this implementation
    works with NUL terminated strings only.
  - Instead of storing just pointers to the original objects, we
    create local copies so the caller does not need to care about the
    data any more.
  - The standard implementation does not provide a way to update an
    existing entry.  This version will create a new entry or update an
    existing one when both "action == ENTER" and "item.data != NULL".
  - hsearch_r(): Instead of returning 1 on success, we return the
    index into the internal hash table, which is also guaranteed to be
    positive.  This allows us direct access to the found hash table
    slot for example for functions like hdelete().
* hdelete() [added]:
  - The standard implementation of hsearch(3) does not provide any way
    to delete any entries from the hash table.  We extend the code to
    do that.
* hexport() [added]:
  - Export the data stored in the hash table in linearized form:
    Entries are exported as "name=value" strings, separated by an
    arbitrary (non-NUL, of course) separator character. This allows to
    use this function both when formatting the U-Boot environment for
    external storage (using '\0' as separator), but also when using it
    for the "printenv" command to print all variables, simply by using
    as '\n" as separator. This can also be used for new features like
    exporting the environment data as text file, including the option
    for later re-import.
  - The entries in the result list will be sorted by ascending key
    values.
* himport() [added]:
  - Import linearized data into hash table.  This is the inverse
    function to hexport(): it takes a linear list of "name=value"
    pairs and creates hash table entries from it.
  - Entries without "value", i. e. consisting of only "name" or
    "name=", will cause this entry to be deleted from the hash table.
  - The "flag" argument can be used to control the behaviour: when
    the H_NOCLEAR bit is set, then an existing hash table will kept,
    i. e. new data will be added to an existing hash table;
    otherwise, old data will be discarded and a new hash table will
    be created.
  - The separator character for the "name=value" pairs can be
    selected, so we both support importing from externally stored
    environment data (separated by NUL characters) and from plain text
    files (entries separated by newline characters).
  - To allow for nicely formatted text input, leading white space
    (sequences of SPACE and TAB chars) is ignored, and entries
    starting (after removal of any leading white space) with a '#'
    character are considered comments and ignored.
  - NOTE: this means that a variable name cannot start with a '#'
    character.
  - When using a non-NUL separator character, backslash is used as
    escape character in the value part, allowing for example fo
    multi-line values.
  - In theory, arbitrary separator characters can be used, but only
    '\0' and '\n' have really been tested.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-19 19:29:47 +02:00
..
asm-generic x86: Fix support for booting bzImage 2010-05-06 00:17:01 +02:00
bedbug Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
configs IceCube.h: update configuration 2010-09-19 19:29:46 +02:00
cramfs Fix endianess problem in cramfs code (cramfs is always host-endian in Linux) 2008-03-03 22:08:08 +01:00
galileo rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
jffs2 fdt_support: add partitions fixup in mtd node 2010-03-21 22:44:59 +01:00
linux x86: Fix support for booting bzImage 2010-05-06 00:17:01 +02:00
lzma Rename lib_generic/ to lib/ 2010-04-13 09:13:04 +02:00
mtd cfi: Add weak default function for flash_cmd_reset() 2009-10-28 11:34:14 +01:00
pcmcia
u-boot Rename lib_generic/ to lib/ 2010-04-13 09:13:04 +02:00
usb mod change 755 => 644 for multiple files 2010-03-21 22:22:53 +01:00
_exports.h export SPI functions to standalone apps 2009-08-09 22:34:51 +02:00
.gitignore update include/asm/ gitignore after move 2010-05-07 00:17:30 +02:00
4xx_i2c.h ppc4xx: Cleanup PPC4xx I2C infrastructure 2009-11-23 16:27:02 +01:00
74xx_7xx.h powerpc: Move duplicated BAT defines to mmu.h 2009-02-10 00:27:40 +01:00
405_dimm.h
405_mal.h Dual-license IBM code contributions 2009-08-09 23:15:33 +02:00
ACEX1K.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
addr_map.h Introduce addr_map library 2008-12-15 22:05:36 +01:00
ahci.h Update Freescale copyrights to remove "All Rights Reserved" 2009-07-29 09:59:22 +02:00
ali512x.h Move ali512x.h 2009-03-20 22:39:13 +01:00
altera.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
amba_clcd.h video: add amba-clcd prime-cell 2010-01-27 21:23:14 +01:00
ambapp.h Coding Style cleanup; update CHANGELOG 2008-04-13 09:59:26 -07:00
api_public.h API: Improve glue mid-layer of the API demo application. 2009-02-18 00:39:44 +01:00
arm925t.h
armcoremodule.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
at45.h at91: rename DATAFLASH_MMC_SELECT to CONFIG_DATAFLASH_MMC_SELECT 2009-04-04 20:42:19 +02:00
at91rm9200_i2c.h
at91rm9200_net.h
ata.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
atmel_lcdc.h Add ATMEL LCD driver 2008-05-10 11:44:55 +02:00
bcd.h Replace BCD2BIN and BIN2BCD macros with inline functions 2009-08-25 12:57:55 +02:00
bcm5221.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
bmp_layout.h
bus_vcxk.h new video driver for bus vcxk framebuffers 2009-07-26 13:17:21 +02:00
bzlib.h
circbuf.h
clps7111.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
command.h Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
common.h Add qsort - add support for sorting data arrays 2010-09-19 19:29:47 +02:00
commproc.h Drop support for GTH board 2010-07-17 20:47:08 +02:00
compiler.h include/compiler.h: remove redundant declaration of errno 2010-06-20 02:21:58 +02:00
config_cmd_all.h config_cmd_all.h: Sort entries alphabetically 2010-04-10 22:19:42 +02:00
config_cmd_default.h Add 'editenv' command 2009-10-27 20:58:25 +01:00
config_defaults.h gzip/zlib: make features optional 2010-01-26 00:04:57 +01:00
crc.h
da9030.h
dataflash.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ddr_spd.h powerpc/8xxx: Enable DDR3 RDIMM support 2010-07-26 13:16:10 -05:00
div64.h Add a do_div() wrapper macro, lldiv(). 2009-01-24 00:23:09 +01:00
dm9000.h Add config option for disabling DM9000-SROM support. 2009-06-08 22:57:21 -07:00
dm9161.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
dp83848.h
ds1722.h Misc ds1722 fixups 2009-09-04 21:54:52 +02:00
ds4510.h Add support for Maxim's DS4510 I2C device 2009-01-24 01:47:50 +01:00
dtt.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
e500.h ppc/p4080: Determine various chip frequencies on CoreNet platforms 2009-09-24 12:05:29 -05:00
elf.h compiler.h: unify system ifdef cruft here 2009-07-19 21:41:46 +02:00
environment.h NAND: environment offset in OOB (CONFIG_ENV_OFFSET_OOB) 2010-07-12 13:56:46 -05:00
errno.h Add basic errno support. 2010-09-19 19:29:47 +02:00
exports.h Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
ext2fs.h
fat.h fs/fat: Big code cleanup. 2010-07-24 20:54:46 +02:00
fdc.h
fdt_support.h fdt: Add function to alloc phandle values 2010-07-26 13:07:56 -05:00
fdt.h powerpc: Fix bootm to boot up again with a Ramdisk 2008-09-13 02:03:38 +02:00
fis.h ata: add the fis struct for SATA 2008-03-26 23:38:54 +01:00
flash.h Support up to 7 banks for ids as specified in JEDEC JEP106Z 2009-08-26 08:58:27 +02:00
fpga.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
fsl_esdhc.h ppc/85xx: PIO Support for FSL eSDHC Controller Driver 2010-04-23 21:02:30 -05:00
fsl_nfc.h Add MX25 support to nand_spl fsl nfc driver 2010-01-27 14:22:41 -06:00
fsl_pmic.h MX: Added Freescale Power Management Driver 2010-05-05 09:48:41 +02:00
hush.h hush: add showvar command for hush shell. 2008-10-18 21:54:02 +02:00
hwconfig.h Add simple hwconfig infrastructure 2009-07-16 22:23:53 +02:00
i2c.h fsl_i2c: Added a callpoint for i2c_board_late_init 2010-04-19 07:46:35 +02:00
i8042.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ide.h mucmc52, uc101: delete ata@3a00 node, if no CF card is detected 2009-09-25 01:22:13 +02:00
image.h Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
iomux.h stdio/device: rework function naming convention 2009-07-18 00:27:46 +02:00
ioports.h Stop using immap_t for cpm offset on 85xx 2007-12-11 22:34:19 -06:00
keyboard.h
kgdb.h Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
ks8721.h Add support for Eukrea CPUAT91 SBC 2009-10-13 06:17:35 -05:00
lcd.h Enable PXAFB for PXA27X and PXA3XX 2010-07-14 22:41:39 +02:00
lcdvideo.h
lh7a40x.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
lh7a400.h
lh7a404.h
libata.h ata: update the libata.h from ata.h of linux kernel 2008-04-13 23:20:16 -07:00
libfdt_env.h compiler.h: unify system ifdef cruft here 2009-07-19 21:41:46 +02:00
libfdt.h libfdt: Fix C++ compile-time cast error on gnu 4.2.1 2009-04-01 19:30:27 -04:00
linux_logo.h
lmb.h lmb: only force on arches that use it 2010-01-21 22:26:00 +01:00
logbuff.h Avoid initrd and logbuffer area overlaps 2008-06-03 19:34:19 +02:00
lpd7a400_cpld.h
lxt971a.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
lynxkdi.h
malloc.h Consolidate arch-specific mem_malloc_init() implementations 2009-09-04 21:47:07 +02:00
mb862xx.h video: mb862xx: improve board-specific Lime configuration 2009-10-31 12:13:28 +01:00
mc13892.h MX: Added definition file for MC13892 2010-05-05 09:48:41 +02:00
MCD_dma.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
MCD_progCheck.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
MCD_tasksInit.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
mg_disk.h mflash: Initial mflash support 2009-04-03 23:47:06 +02:00
mii_phy.h
miiphy.h miiphy: constify device name 2010-08-09 11:52:29 -07:00
mk48t59.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mmc.h AT91: MCI: add SD/MMC driver using mmc framework 2010-09-03 11:19:01 +02:00
mpc5xx.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc5xxx_sdma.h Move MPC5xxx_FEC driver to drivers/net 2008-08-29 13:58:07 -06:00
mpc5xxx.h mpc5xxx: Remove all references to MGT5100 2010-03-21 22:44:42 +01:00
mpc8xx_irq.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc8xx.h
mpc83xx.h mpc8308: support for Freescale MPC8308 cpu 2010-07-09 15:00:54 -05:00
mpc85xx.h 83xx/85xx/86xx: LBC register cleanup 2010-07-16 10:55:09 -05:00
mpc86xx.h mpc86xx: set the DDR BATs after calculating true DDR size 2010-03-30 10:50:22 -05:00
mpc106.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc824x.h powerpc: Move duplicated BAT defines to mmu.h 2009-02-10 00:27:40 +01:00
mpc8220.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc8260_irq.h
mpc8260.h
mtd_node.h fdt_support: add partitions fixup in mtd node 2010-03-21 22:44:59 +01:00
nand.h NAND: environment offset in OOB (CONFIG_ENV_OFFSET_OOB) 2010-07-12 13:56:46 -05:00
net.h Fix compile warnings for const correctness 2010-08-09 11:52:30 -07:00
netdev.h mvgbe: support SoCs other than kirkwood 2010-07-12 23:40:31 -07:00
nios2-epcs.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
nios2-io.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
nios2-yanu.h nios2: Added support to YANU UART 2010-03-21 22:44:42 +01:00
nios2.h
nomadik.h include/nomadik.h: add physical address for cldc 2010-01-27 21:23:23 +01:00
ns7520_eth.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
ns9750_bbus.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_eth.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
ns9750_mem.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_ser.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_sys.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns16550.h Move arch/ppc to arch/powerpc 2010-04-21 23:42:38 +02:00
ns87308.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
onenand_uboot.h Flex-OneNAND driver support 2009-11-13 16:56:18 -06:00
part.h mflash: Initial mflash support 2009-04-03 23:47:06 +02:00
pc_keyb.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
pca953x.h Add support for PCA953x I2C gpio devices 2008-12-19 18:11:49 -06:00
pca9564.h Prepare v2010.03-rc1 2010-03-12 23:06:04 +01:00
pci_ids.h video: sm501: add support for SM501 chips on PCI bus 2010-06-14 12:29:26 +02:00
pci.h pci/fsl_pci_init: Use PCIe capability to determine if controller is PCIe 2009-08-28 17:12:36 -05:00
pcmcia.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
post.h mpc5121: pdm360ng: add coprocessor POST 2010-04-24 22:56:41 +02:00
ppc_asm.tmpl powerpc: fix wrong comment at GOT definitions 2010-06-29 23:03:40 +02:00
ppc_defs.h
ppc4xx_enet.h ppc4xx: respect 80-chars per line in ppc*.h files 2009-10-07 09:15:30 +02:00
ppc4xx.h common: delete CONFIG_SYS_64BIT_VSPRINTF and CONFIG_SYS_64BIT_STRTOUL 2009-12-08 22:14:07 +01:00
ppc405.h ppc4xx: Cleanup PPC4xx I2C infrastructure 2009-11-23 16:27:02 +01:00
ppc440.h ppc4xx: Fix 440EPx bug in reconfigure_pll() 2010-09-03 11:14:21 +02:00
ps2mult.h Rename common ns16550 constants with UART_ prefix to prevent conflicts 2009-04-03 22:34:07 +02:00
radeon.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
reiserfs.h
rtc.h Switch from per-driver to common definition of bin2bcd and bcd2bin 2009-08-25 12:57:55 +02:00
s_record.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
s6e63d6.h A driver for the S6E63D6 SPI display controller from Samsung 2009-02-24 10:00:28 +01:00
SA-1100.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
sata.h SATA: do not auto-initialize during boot 2009-01-27 23:42:39 +01:00
scsi.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
search.h Add hash table support as base for new environment code 2010-09-19 19:29:47 +02:00
sed156x.h
sed13806.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
serial.h Merge branch 'master' of git://git.denx.de/u-boot-samsung 2010-09-08 00:03:22 +02:00
sha1.h Add support for calculating hashes with watchdog triggering 2008-04-25 00:01:06 +02:00
sha256.h include/sha256.h: fix file permissions. 2008-07-06 01:21:46 +02:00
sja1000.h Add minimal SJA1000 header for basic CAN mode 2009-11-17 13:19:58 +01:00
sm501.h
smiLynxEM.h
spartan2.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
spartan3.h add block write function to spartan3 slave serial load 2010-03-24 11:08:43 -05:00
spd_sdram.h
spd.h
spi_flash.h spi_flash.h: pull in linux/types.h for u## types 2009-11-24 23:40:39 +01:00
spi.h Move conditional compilation of MPC8XXX SPI driver to Makefile 2008-07-01 21:02:11 +02:00
status_led.h Blackfin: back out status_led.h stubs 2010-07-05 05:30:07 -04:00
stdio_dev.h console: unify printing current devices 2009-07-19 01:02:46 +02:00
stratixII.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
sym53c8xx.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
systemace.h
timestamp.h Update U-Boot's build timestamp on every compile 2008-12-06 23:36:43 +01:00
tsec.h tsec: Add TSEC_FIBER flag 2010-01-31 22:34:34 -08:00
tsi108.h
tsi148.h Add support for the Tundra TSI148 VME-bridge 2009-07-19 11:21:08 +02:00
twl4030.h ARMV7: OMAP: add convenience function to set TWL4030 regulator voltages 2010-09-08 14:50:23 -04:00
twl6030.h ARMV7: Add support for the TWL6030 I2C power chip used in OMAP4 systems 2010-08-05 10:11:30 -04:00
tws.h drivers/twserial: Add protocol driver for "three wire serial" interface. 2009-03-30 09:38:36 +02:00
ubi_uboot.h UBI: Fix problem in UBI/Linux "compatibility layer" 2010-05-19 10:57:24 +02:00
universe.h
usb_cdc_acm.h
usb_defs.h Prepare USB layer for ehci 2009-01-28 19:57:27 +01:00
usb.h musb: MSC host support for AM35x 2010-08-12 16:40:00 +02:00
usbdescriptors.h USB add macros for debugging usb device setup. 2009-12-20 12:47:37 +01:00
usbdevice.h USB add macros for debugging usb device setup. 2009-12-20 12:47:37 +01:00
version.h Makefile: fix "error: version_autogenerated.h: No such file or directory" 2008-05-13 23:15:52 +02:00
vfd_logo.h
video_ad7176.h
video_ad7177.h
video_ad7179.h
video_easylogo.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
video_fb.h video: cleanup comments in cfb_console.c and video_fb.h 2010-07-17 00:05:14 +02:00
video_font.h
video_logo.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
video.h
virtex2.h fpga: Remove relocation fixups 2009-10-03 10:17:56 +02:00
vsc7385.h Cleanup coding style, update CHANGELOG 2008-03-26 11:48:46 +01:00
vxworks.h Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
w83c553f.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
watchdog.h nios: remove nios-32 arch 2010-05-28 10:56:04 -04:00
xilinx.h add block write function to spartan3 slave serial load 2010-03-24 11:08:43 -05:00
xyzModem.h