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* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-187/+11
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* fs/ext4: fix log2blksz un-initialized error, by cacaulating its value from blkszLan Yixun (dlan)2013-07-22-0/+4
| | | | | | | | | | | The problem here is that uboot can't mount ext4 filesystem with commit "50ce4c07df1" applied. We use hard-coded "SECTOR_SIZE"(512) before this commit, now we introduce (block_dev_desc_t *)->log2blksz to replace this macro. And after we calling do_ls()->fs_set_blk_dev(), the variable log2blksz is not initialized, which it's not correct. And this patch try to solve the problem by caculating the value of log2blksz from variable blksz.
* Fix ext2/ext4 filesystem accesses beyond 2TiBFrederic Leroy2013-07-15-5/+5
| | | | | | | | | | | | | | | | | With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type, which is required to represent block numbers for storage devices that exceed 2TiB (the block size usually is 512B), e.g. recent hard drives We now use lbaint_t for partition offset to reflect the lbaint_t change, and access partitions beyond or crossing the 2.1TiB limit. This required changes to signature of ext4fs_devread(), and type of all variables relatives to block sector. ext2/ext4 fs uses logical block represented by a 32 bit value. Logical block is a multiple of device block sector. To avoid overflow problem when calling ext4fs_devread(), we need to cast the sector parameter. Signed-off-by: Frédéric Leroy <fredo@starox.org>
* disk: Fix possible out-of-bounds access in part_efi.cMarek Vasut2013-06-04-3/+8
| | | | | | | | | | | | | | | | | | | Make sure to never access beyond bounds of either EFI partition name or DOS partition name. This situation is happening: part.h: disk_partition_t->name is 32-byte long part_efi.h: gpt_entry->partition_name is 36-bytes long The loop in part_efi.c copies over 36 bytes and thus accesses beyond the disk_partition_t->name . Fix this by picking the shortest of source and destination arrays and make sure the destination array is cleared so the trailing bytes are zeroed-out and don't cause issues with string manipulation. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Simon Glass <sjg@chromium.org>
* disk/iso: Add Support for block sizes > 512 byte to ISO partition supportEgbert Eich2013-05-01-0/+3
| | | | | | | For ISO we check the block size of the device if this is != the CD sector size we assume that the device has no ISO partition. Signed-off-by: Egbert Eich <eich@suse.com>
* disk/gpt: Fix GPT partition handling for blocksize != 512Egbert Eich2013-05-01-16/+22
| | | | | | | | Disks beyond 2T in size use blocksizes of 4096 bytes. However a lot of code in u-boot still assumes a 512 byte blocksize. This patch fixes the handling of GPTs. Signed-off-by: Egbert Eich <eich@suse.com>
* disk/part_dos: check harder for partition tableEgbert Eich2013-05-01-3/+16
| | | | | | | | | | | | | | | | | | | | Devices that used to have a whole disk FAT filesystem but got then partitioned will most likely still have a FAT or FAT32 signature in the first sector as this sector does not get overwritten by a partitioning tool (otherwise the tool would risk to kill the mbr). The current partition search algorithm will erronously detects such a device as a raw FAT device. Instead of looking for the FAT or FAT32 signatures immediately we use the same algorithm as used by the Linux kernel and first check for a valid boot indicator flag on each of the 4 partitions. If the value of this flag is invalid for the first entry we then do the raw partition check. If the flag for any higher partition is wrong we assume the device is neiter a MBR nor PBR device. Signed-off-by: Egbert Eich <eich@suse.com>
* disk: fix unaligned access in efi partitionsMarc Dietrich2013-04-02-1/+2
| | | | | | | start_sect is not aligned to a 4 byte boundary thus causing exceptions on ARM platforms. Access this field via the get_unaligned_le32 macro. Signed-off-by: Marc Dietrich <marvin24@gmx.de>
* disk: define HAVE_BLOCK_DEVICE in a common placeStephen Warren2013-03-14-40/+5
| | | | | | | | | | This set of ifdefs is used in a number of places. Move its definition somewhere common so it doesn't have to be repeated. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Tom Rini <trini@ti.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* sandbox: Add host filesystemSimon Glass2013-03-04-0/+17
| | | | | | | This allows reading of files from the host filesystem in sandbox. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
* gpt: Support for GPT (GUID Partition Table) restorationLukasz Majewski2012-12-13-3/+278
| | | | | | | | | The restoration of GPT table (both primary and secondary) is now possible. Function 'gpt_restore' presents example of partition restoration process. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* gpt: The leXX_to_int() calls replaced with ones defined at <compiler.h>Chang Hyun Park2012-12-13-71/+42
| | | | | | | | | | | | Custom definitions of le_XX_to_int functions have been replaced with standard ones, defined at <compiler.h> Replacement of several GPT related structures members with ones indicating its endianness and proper size. Signed-off-by: Chang Hyun Park <heartinpiece@outlook.com> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* part:efi: Move part_efi.h file to ./includeLukasz Majewski2012-12-13-144/+0
| | | | | | | | | | This move is necessary to export gpt header and GPT partition entries to be used with other commands or subsystems. Additionally the part_efi.h file has been cleaned-up to supress checkpatch's warnings. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* part: check each variable for capability calculationJerry Huang2012-12-06-1/+1
| | | | | | | | | | | In order to calculate the capability, we use the below expression to check: ((dev_desc->lba * dev_desc->blksz)>0L) If the capability is greater than 4GB (e.g. 8GB = 8 * 1024 * 104 * 1024), the result will overflow, the low 32bit may be zero. Therefore, change to check each variable to fix this potential issue. Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
* disk: Address cast and format errorsTaylor Hutt2012-10-22-3/+4
| | | | | | | | This change addresses a few printf-formatting errors, and a typecast error. Signed-off-by: Taylor Hutt <thutt@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* disk: Make the disk partition code work with no specific partition typesGabe Black2012-10-22-33/+17
| | | | | | | | | | | | | | | Currently, if the disk partition code is compiled with all of the parition types compiled out, it hits an #error which stops the build. This change adjusts that file so that those functions will fall through to their defaults in those cases instead of breaking the build. These functions are needed because other code calls them, and that code is needed because other config options are overly broad and bring in support we don't need along with support we do. Also reduce repetition of the 6-term #ifdef throughout the file. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* disk: initialize name/part fields when returning a whole diskStephen Warren2012-10-19-0/+2
| | | | | | | | | | | | | | | | | | When get_device_and_partition() finds a disk without a partition table, under some conditions, it "returns" a disk_partition_t that describes the entire raw disk. Make sure to initialize all fields in the partition descriptor in that case. The value chosen for name is just some arbitrary descriptive string. The value chosen for info matches the check at the end of get_device_and_partition(). However, it's probably not that important; it's not obvious that the value is really used. Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Tom Rini <trini@ti.com>
* disk: part_dos: print partition UUID in partition listStephen Warren2012-10-17-8/+11
| | | | | | | | | | | This information may be useful to compare against command "part uuid", or if you want to manually paste the information into the kernel command-line. Signed-off-by: Stephen Warren <swarren@nvidia.com> [trini: print_one_part / print_part_dos output strings didn't quite match before the changes] Signed-off-by: Tom Rini <trini@ti.com>
* disk: part_dos: checkpatch cleanupsStephen Warren2012-10-17-10/+11
| | | | | | Minor cleanups required so later patches don't trigger checkpatch. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: set bootable flag in partition objectsStephen Warren2012-10-17-0/+10
| | | | | | | | A partition is considered bootable if it either has the "legacy BIOS bootable" flag set, or if the partition type UUID matches the standard "system" type. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: print raw partition attributesStephen Warren2012-10-17-6/+11
| | | | | | | When printing the EFI partition table, print the raw attributes. Convert struct gpt_entry_attributes to a union to allow raw access. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: add new partition attribute definitionsStephen Warren2012-10-17-1/+3
| | | | | | | | Add no_block_io_protocol and legacy_bios_bootable attribute definitions. These are sourced from UEFI Spec 2.3, page 105, table 19. Credits to the libparted source for the specification pointer. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: print partition UUIDsStephen Warren2012-10-17-22/+28
| | | | | | | | When printing the partition table, print the partition type UUID and the individual partition UUID. Do this unconditionally, since partition UUIDs are useful. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: re-order partition list printf, change caseStephen Warren2012-10-17-4/+4
| | | | | | | | | | | | | The partition name is a long variable-length string. Move it last on the line to ensure consistent layout and that the entries align with the "header" line. Also, surround it in quotes, so if it's empty, it's obvious that something is still being printed. Also, change the case of the LBA numbers; lower-case looks nicer in my opinion, and will be more consistent with the UUID printing that is added later in this series. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: remove indent level from loopStephen Warren2012-10-17-8/+7
| | | | | | | | Simplify the partition printing loop in print_part_efi() to bail out early when the first invalid partition is found, rather than indenting the whole body of the loop. This simplifies later patches. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: get_device_and_partition() return value fixesStephen Warren2012-10-17-1/+1
| | | | | | | | | | | When no valid partitions are found, guarantee that we return -1. This most likely already happens, since the most recent get_partition_info() will have returned an error. However, it's best to be explicit. Remove an unnecessary assignment of ret=0 in the success case; this value is over-written with the processed partition ID later. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_dos: don't claim whole-disk FAT filesystemsStephen Warren2012-10-08-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Logically, a disk that contains a raw FAT filesystem does not in fact have a partition table. However, test_part_dos() was claiming that such disks did in fact have a DOS-style partition table. This caused get_device_and_partition() not to return a whole-disk disk_partition_t, since part_type != PART_TYPE_UNKNOWN. part_dos.c's print_partition_extended() detected the raw FAT filesystem condition and printed a fake partition table that encompassed the whole disk. However, part_dos.c's get_partition_info_extended() did not return any valid partitions in this case. This combination caused get_device_and_partition() not to find any valid partitions, and hence to return an error. Fix test_part_dos() not to claim that raw FAT filesystems are DOS partition tables. In turn, this causes get_device_and_partition() to return a whole-disk disk_partition_t, and hence the following commands work: fatls mmc 0 / fatls mmc 0:auto / An alternative would be to modify print_partition_extended() to detect raw FAT filesystems, just like print_partition_extended() does, and to return a fake partition in this case. However, this seems logically incorrect, and also duplicates code, since get_device_and_partition() falls back to returning a whole-disk partition when there is no partition table on the device. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: allow - or empty string to fall back to $bootdeviceStephen Warren2012-09-28-1/+2
| | | | | | | | | | | | | | | | Commit 10a37fd "disk: get_device_and_partition() "auto" partition" prevented the use of "-" on the command-line to request fallback to the $bootdevice environment variable instead. This patch allows that, or an empty string "" to be used. Tested: setenv bootfile /boot/zImage setenv bootdevice 0:1 ext2load mmc 0:1 ext2load mmc - ext2load mmc "" Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_msdos: parse and store partition UUIDStephen Warren2012-09-25-4/+13
| | | | | | | | | | | | The MSDOS/MBR partition table includes a 32-bit unique ID, often referred to as the NT disk signature. When combined with a partition number within the table, this can form a unique ID similar in concept to EFI/GPT's partition UUID. This patch generates UUIDs in the format 0002dd75-01, which matches the format expected by the Linux kernel. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: parse and store partition UUIDStephen Warren2012-09-25-0/+30
| | | | | | | | | | | Each EFI partition table entry contains a UUID. Extend U-Boot's struct disk_partition to be able to store this information, and modify get_partition_info_efi() to fill it in. The implementation of uuid_string() was derived from the Linux kernel, tag v3.6-rc4 file lib/vsprintf.c function uuid_string(). Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: part_efi: range-check partition numberStephen Warren2012-09-25-0/+7
| | | | | | | | Enhance get_partition_info_efi() to range-check the partition number. This prevents invalid partitions being accessed, and prevents access beyond the end of the gpt_pte[] array. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: get_device_and_partition() "auto" partition and cleanupStephen Warren2012-09-25-43/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework get_device_and_partition() to: a) Implement a new partition ID of "auto", which requests that U-Boot search for the first "bootable" partition, and fall back to the first valid partition if none is found. This way, users don't need to specify an explicit partition in their commands. b) Make use of get_device(). c) Add parameter to indicate whether returning a whole device is acceptable, or whether a partition is mandatory. d) Make error-checking of the user's device-/partition-specification more complete. In particular, if strtoul() doesn't convert all characters, it's an error rather than just ignored. The resultant device/partition returned by the function will be as follows, based on whether the disk has a partition table (ptable) or not, and whether the calling command allows the whole device to be returned or not. (D and P are integers, P >= 1) D D: No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: device D partition 1 D:0 !allow_whole_dev: error allow_whole_dev: device D D:P No ptable: error ptable: device D partition P D:auto No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: first partition in device D with bootable flag set. If none, first valid paratition in device D. Note: In order to review this patch, it's probably easiest to simply look at the file contents post-application, rather than reading the patch itself. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [swarren: Rob implemented scanning for bootable partitions. I fixed a couple of issues there, switched the syntax to ":auto", added the error-checking rework, and ":0" syntax for the whole device] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk: introduce get_device()Stephen Warren2012-09-25-0/+22
| | | | | | | | | This patch introduces function get_device(). This looks up a block_dev_desc_t from an interface name (e.g. mmc) and device number (e.g. 0). This function is essentially the non-partition-specific prefix of get_device_and_partition(). Signed-off-by: Stephen Warren <swarren@nvidia.com>
* disk/part: introduce get_device_and_partitionRob Herring2012-09-25-2/+67
| | | | | | | | | | | | All block device related commands (scsiboot, fatload, ext2ls, etc.) have simliar duplicated device and partition parsing and selection code. This adds a common function to replace various implementations. The new function has an enhancement over current versions. If no device or partition is specified on the command line, the bootdevice env variable will be used (scsiboot does this). Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* disk/part: check bootable flag for DOS partitionsRob Herring2012-09-25-2/+9
| | | | | | | Determine which partitions are bootable/active. In the partition listing, print "Boot" for partitions with the bootable/active flag set. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* disk: make get_partition_info() always available to disk.cStephen Warren2012-09-25-55/+63
| | | | | | | | | | | | | | | | | | | | | | | | Now that get_device_and_partition() always calls get_partition_info() when disk.c is compiled, we must always compile the function, rather than ifdef it away. The implementation must be conditional based on CONFIG_CMD_* etc., since that's what e.g. part_dos.c uses to ifdef out get_partition_info_dos(); CONFIG_DOS_PARTITION can be enabled even without those commands being enabled. Technically, this change is required before Rob's "disk/part: introduce get_device_and_partition" patch. However, at least when the compiler optimizer is turned on, it isn't required before then in practice, since get_device_and_partition() calls get_dev(), which is stubbed out in disk.c under exactly the same conditions that get_partition_info() is not compiled, and hence the compiler never generates code for the call to the missing function. However, in my later patch "disk: get_device_and_partition() "auto" partition and cleanup", the optimizer doesn't succeed at this, and may attempt to reference the undefined function. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* part_mac: dcache: allocate cacheline-aligned buffersBenoît Thébaudeau2012-09-02-34/+34
| | | | | | | | This patch forces the correct alignment for DMA operations of buffers used by part_mac.c. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Wolfgang Denk <wd@denx.de>
* Block: Remove MG DISK supportMarek Vasut2012-06-21-11/+0
| | | | | | | | This driver is unused and obsolete. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: unsik Kim <donari75@gmail.com>
* part_dos: align disk buffers on cache line to enable DMA and cacheEric Nelson2012-04-30-3/+3
| | | | | Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* disk/part.c: Fix device enumeration through APITim Kientzle2012-03-27-0/+3
| | | | | | | | | | | | | | | The patch below fixes device enumeration through the U-Boot API. Device enumeration crashes when the system in question doesn't have any RAM mapped to address zero (I discovered this on a BeagleBone board), since the enumeration calls get_dev with a NULL ifname sometimes which then gets passed down to strncmp(). This fix simply ensures that get_dev returns NULL when invoked with a NULL ifname. Signed-off-by: Tim Kientzle <kientzle@freebsd.org> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* part_efi: Fix compile errorsSanjeev Premi2011-12-06-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix errors noticed after enabling CONFIG_EFI_PARTITION for the OMAP3 EVM board: part_efi.c: In function 'print_part_efi': part_efi.c:133:5: warning: passing argument 3 of 'is_gpt_valid' from incompatible pointer type part_efi.c:95:12: note: expected 'struct gpt_header *' but arg ument is of type 'struct gpt_header **' part_efi.c: In function 'get_partition_info_efi': part_efi.c:173:4: warning: passing argument 3 of 'is_gpt_valid ' from incompatible pointer type part_efi.c:95:12: note: expected 'struct gpt_header *' but arg ument is of type 'struct gpt_header **' part_efi.c: In function 'alloc_read_gpt_entries': part_efi.c:384:18: error: 'CONFIG_SYS_CACHELINE_SIZE' undeclare d (first use in this function) Signed-off-by: Sanjeev Premi <premi@ti.com> Cc: Tom Rini <tom.rini@gmail.com> Cc: Anton staaf <robotboy@chromium.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* disk: part_efi: fix regression due to incorrect buffer usageStephen Warren2011-12-05-2/+2
| | | | | | | | | | | | | | | | | | Commit deb5ca80275e8cfa74d5680b41204e08a095eca5 "disk: part_efi: fix **pgpt_pte == NULL" modified the code to pass "&gpt_head" to is_gpt_valid() rather than the previous "gpt_head". However, gpt_head is a pointer to the buffer, not the actual buffer, since it was allocated using ALLOC_CACHE_ALIGN_BUFFER. This caused is_gpt_valid() to read the disk block onto the stack rather than into the buffer, causing the code to fail. This change reverts that portion of the commit mentioned above. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Doug Anderson <dianders@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Anton Staaf <robotboy@chromium.org>
* disk: part_efi: fix **pgpt_pte == NULLDoug Anderson2011-10-27-23/+15
| | | | | | | | | | Code was setting **pgpt_pte == NULL, which meant that the pointer to the gpt_pte would be stored at RAM address 00000000. This 'worked' on T20 (SDRAM starts @ 0x00000000), but hung gpt/EFI access on T30 (SDRAM starts @ 0x80000000). Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Doug Anderson <dianders@chromium.org>
* cosmetic: Replace __FUNCTION__ with __func__ in part_efi.cDoug Anderson2011-10-27-14/+14
| | | | | | | This makes checkpatch happy. Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
* part_efi: dcache: allocate cacheline aligned buffersAnton staaf2011-10-25-9/+9
| | | | | | | | | | | | | | | Currently part_efi.c allocates buffers for the gpt_header, the legacy_mbr, and the pte (partition table entry) that may be incorrectly aligned for DMA operations. This patch uses ALLOC_CACHE_ALIGN_BUFFER for the stack allocated buffers and memalign to replace the malloc of the pte. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Acked-by: Mike Frysinger <vapier@gentoo.org>
* part: show efi partition name when print out partition infoLei Wen2011-10-06-5/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | Previous output: Marvell>> mmc part Partition Map for MMC device 1 -- Partition Type: EFI Part Start LBA End LBA gpt1 0x8C00 0xCBFF gpt2 0xCC00 0x57BFF gpt3 0x57C00 0xA2BFF gpt4 0xA2C00 0xECBFDE With the patch, the output becomes: Marvell>> mmc part Partition Map for MMC device 1 -- Partition Type: EFI Part Name Start LBA End LBA 1 ramdisk 0x00008C00 0x0000CBFF 2 system 0x0000CC00 0x00057BFF 3 userdata 0x00057C00 0x000A2BFF 4 remaining 0x000A2C00 0x00ECBFDE Signed-off-by: Lei Wen <leiwen@marvell.com>
* part_dos: fix crash with big sector sizeSergei Shtylyov2011-07-27-10/+3
| | | | | | | | Apple iPod nanos have sector sizes of 2 or 4 KiB, which crashes U-Boot when it tries to read the MBR into 512-byte buffer situated on stack. Instead use the variable length arrays to be safe with any large sector size. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
* disk/part.c: Make features optionalMatthew McClintock2011-07-26-1/+1
| | | | | | | | | If we don't want to build support for any partition types we can now add #undef CONFIG_PARTITIONS in a board config file to keep this from being compiled in. Otherwise boards assume this is compiled in by default Signed-off-by: Matthew McClintock <msm@freescale.com>
* disk/part.c: fix potential stack overflow bugLei Wen2011-04-12-1/+1
| | | | | | | | If the param pass to get_dev is not the one defined in the block_drvr, it could make uboot becomes unstable, for it would continue run after search complete the block_drvr table. Signed-off-by: Lei Wen <leiwen@marvell.com>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
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