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  1. 22 Jul, 2012 2 commits
  3. 15 Oct, 2011 1 commit
  5. 17 Nov, 2010 1 commit
    • Sebastien Carlier's avatar
      Switch from archive libraries to partial linking · 6d8962e8
      Sebastien Carlier authored 
      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: default avatarSebastien Carlier <sebastien.carlier@gmail.com>
      6d8962e8
  7. 18 Oct, 2010 3 commits
  9. 21 Sep, 2010 1 commit
    • Michael Zaidman's avatar
      POST cleanup. · 800eb096
      Michael Zaidman authored 
      - Revives POST for blackfin arch;
- Removes redundant code:
     arch/blackfin/lib/post.c
     arch/powerpc/cpu/ppc4xx/commproc.c
     arch/powerpc/cpu/mpc512x/common.c
- fixes up the post_word_{load|store} usage.
Signed-off-by: default avatarMichael Zaidman <michael.zaidman@gmail.com>
Acked-by: default avatarDetlev Zundel <dzu@denx.de>
Tested-by: default avatarAnatolij Gustschin <agust@denx.de>

List of the maintainers of the affected by patch boards:
Cc: Stephan Linz <linz@li-pro.net>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Larry Johnson <lrj@acm.org>
Cc: Feng Kan <fkan@amcc.com>
      800eb096
  11. 04 Jul, 2010 1 commit
    • Wolfgang Denk's avatar
      Make sure that argv[] argument pointers are not modified. · 54841ab5
      Wolfgang Denk authored 
      The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...
Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Acked-by: default avatarMike Frysinger <vapier@gentoo.org>
      54841ab5
  13. 21 Mar, 2010 1 commit
  15. 12 Jun, 2009 1 commit
    • Wolfgang Denk's avatar
      General help message cleanup · a89c33db
      Wolfgang Denk authored 
      Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt
Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      a89c33db
  17. 28 Jan, 2009 1 commit
    • Peter Tyser's avatar
      Command usage cleanup · 2fb2604d
      Peter Tyser authored 
      Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.
Signed-off-by: default avatarPeter Tyser <ptyser@xes-inc.com>
      2fb2604d
  19. 18 Oct, 2008 1 commit
  21. 03 Sep, 2008 2 commits
  23. 10 Jul, 2008 1 commit
  25. 02 Jul, 2008 1 commit
  27. 12 Jun, 2008 1 commit
    • Becky Bruce's avatar
      Change initdram() return type to phys_size_t · 9973e3c6
      Becky Bruce authored 
      This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory.  phys_size_t is defined as an unsigned long on almost
all current platforms.

This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram).  It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.

Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.
Signed-off-by: default avatarBecky Bruce <becky.bruce@freescale.com>
      9973e3c6
  29. 20 May, 2008 1 commit
    • Wolfgang Denk's avatar
      Big white-space cleanup. · 53677ef1
      Wolfgang Denk authored 
      This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      53677ef1
  31. 10 Jul, 2007 1 commit
  33. 09 Jul, 2007 1 commit
  35. 03 Jul, 2007 2 commits
  37. 01 Nov, 2006 1 commit
  39. 08 Oct, 2006 1 commit
  41. 01 Sep, 2006 1 commit
    • Marian Balakowicz's avatar
      Add support for a saving build objects in a separate directory. · f9328639
      Marian Balakowicz authored 
      Modifications are based on the linux kernel approach and
support two use cases:

  1) Add O= to the make command line
  'make O=/tmp/build all'

  2) Set environement variable BUILD_DIR to point to the desired location
  'export BUILD_DIR=/tmp/build'
  'make'

The second approach can also be used with a MAKEALL script
'export BUILD_DIR=/tmp/build'
'./MAKEALL'

Command line 'O=' setting overrides BUILD_DIR environent variable.

When none of the above methods is used the local build is performed and
the object files are placed in the source directory.
      f9328639
  43. 02 May, 2006 1 commit
  45. 21 Apr, 2006 1 commit