Eric Lee / smarc-uboot

03 May, 2016

1 commit

17 Sep, 2014

1 commit

  • f9f040b21   kgdb: Remove first_entry for kgdb ... Browse Code »

    There are two ways to run into handle_exception, run command 'kgdb' and
    encounter a breakpoint which triggers exception handling.

    The origin source code only saves regs when first run command 'kgdb'.
    Take the following for example, When run 'kgdb', regs is saved to entry_regs.
    When run 'bootz', regs is not saved. However, if we set a breakpoint, then
    continue. When breakpoint is reached, run `quit`, and Now return to the
    instruction which follows kgdb, but not bootz.This may cause errors. So,
    save regs for each handle_exception call to return to the correct place.
    Example:
    Target | Host
    =>kgdb | (gdb)b bootz
    | (gdb)c
    =>bootz |
    | (gdb)Here stop because of breakpoint
    | (gdb)q

    Signed-off-by: Peng Fan

    Peng Fan
     

05 Jul, 2010

1 commit

  • 54841ab50   Make sure that argv[] argument pointers are not modified. ... Browse Code »
    1

    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: Wolfgang Denk
    Acked-by: Mike Frysinger

    Wolfgang Denk
     

22 Apr, 2010

1 commit

  • a47a12bec   Move arch/ppc to arch/powerpc ... Browse Code »

    As discussed on the list, move "arch/ppc" to "arch/powerpc" to
    better match the Linux directory structure.

    Please note that this patch also changes the "ppc" target in
    MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
    is kept as an alias for now, to not break compatibility with
    scripts using this name.

    Signed-off-by: Stefan Roese
    Acked-by: Wolfgang Denk
    Acked-by: Detlev Zundel
    Acked-by: Kim Phillips
    Cc: Peter Tyser
    Cc: Anatolij Gustschin

    Stefan Roese
     

18 Jan, 2010

1 commit

  • 16035bcd8   kgdb: update mem2hex/hex2mem funcs ... Browse Code »

    Convert the funcs to do the conversion inline so that we can do the copy
    all at once with memcpy. This let's us push out an weird arch-specific
    issue with accessing different regions of memory to the memcpy function
    like the MMRs on Blackfin systems, and it should be a bit faster.

    Signed-off-by: Robin Getz
    Signed-off-by: Mike Frysinger

    Robin Getz
     

12 Feb, 2009

1 commit

28 Jan, 2009

1 commit

  • 2fb2604d5   Command usage cleanup ... Browse Code »

    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: Peter Tyser

    Peter Tyser
     

19 Oct, 2008

1 commit

09 Mar, 2008

1 commit

11 Jul, 2007

1 commit

09 Jul, 2007

1 commit

04 Jul, 2007

1 commit

13 Oct, 2005

1 commit

02 Jul, 2003

1 commit

28 Jun, 2003

1 commit

  • 8bde7f776   * Code cleanup: ... Browse Code »
    46

    - remove trailing white space, trailing empty lines, C++ comments, etc.
    - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

    * Patches by Kenneth Johansson, 25 Jun 2003:
    - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)

    wdenk
     

27 Aug, 2002

1 commit