| Commit message (Collapse) | Author | Age | Files | Lines |
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To allow this function to be used from SPL, move it to the malloc()
code.
Signed-off-by: Simon Glass <sjg@chromium.org>
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This commit introduces new config: CONFIG_SYS_MALLOC_CLEAR_ON_INIT.
This config is an expert option and is enabled by default.
The all amount of memory reserved for the malloc, is by default set
to zero in mem_malloc_init(). When the malloc reserved memory exceeds
few MiB, then the boot process can slow down.
So disabling this config, is an expert option to reduce the boot time,
and can be disabled by Kconfig.
Note:
After disable this option, only calloc() will return the pointer
to the zeroed memory area. Previously, without this option,
the memory pointed to untouched malloc memory region, was filled
with zeros. So it means, that code with malloc() calls should
be reexamined.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The simple malloc() implementation is used when memory is tight. It provides
a simple buffer with an incrementing pointer.
At present the implementation is inside dlmalloc. Move it into its own file
so that it is easier to find.
Rather than using relocation as a signal that the full malloc() is
available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the
simple malloc() should no longer be used.
In some cases, such as SPL, even the code space used by the full malloc() is
wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple
malloc. In this case the full malloc is not available at all. It saves about
1KB of code space and about 0.5KB of data on Thumb 2.
Acked-by: Tom Rini <trini@ti.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
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When DEBUG is set, output memory region used for malloc().
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
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Attempting to run the sandbox leads to a segfault, because some dynamic
libraries (outside of u-boot) attempt to use malloc() to allocate memory
before u-boot's gd variable is initialized.
Check for gd not being NULL in the SYS_MALLOC_F_LEN handling, so that
malloc() doesn't crash when called at this point.
$ gdb -q --args ./u-boot
(gdb) r
Program received signal SIGSEGV, Segmentation fault.
0x0000000000412b9b in malloc (bytes=bytes@entry=37) at common/dlmalloc.c:2184
2184 if (!(gd->flags & GD_FLG_RELOC)) {
(gdb) p gd
$1 = (gd_t *) 0x0
(gdb) bt
#0 0x0000000000412b9b in malloc (bytes=bytes@entry=37) at common/dlmalloc.c:2184
#1 0x00007ffff75bf8e1 in set_binding_values (domainname=0x7ffff11f4f12 "libgpg-error", dirnamep=0x7fffffffe168, codesetp=0x0)
at bindtextdom.c:228
#2 0x00007ffff75bfb4c in set_binding_values (codesetp=0x0, dirnamep=0x7fffffffe168, domainname=<optimized out>) at bindtextdom.c:350
#3 __bindtextdomain (domainname=<optimized out>, dirname=0x7ffff11f4f00 "/usr/share/locale") at bindtextdom.c:348
#4 0x00007ffff11eca17 in ?? () from /lib/x86_64-linux-gnu/libgpg-error.so.0
#5 0x00007ffff7dea9fa in call_init (l=<optimized out>, argc=argc@entry=1, argv=argv@entry=0x7fffffffe208,
env=env@entry=0x7fffffffe218) at dl-init.c:78
#6 0x00007ffff7deaae3 in call_init (env=0x7fffffffe218, argv=0x7fffffffe208, argc=1, l=<optimized out>) at dl-init.c:36
#7 _dl_init (main_map=0x7ffff7ffe1a8, argc=1, argv=0x7fffffffe208, env=0x7fffffffe218) at dl-init.c:126
#8 0x00007ffff7ddd1ca in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Simon Glass <sjg@chromium.org>
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Tun on DEBUG in malloc(). This adds code space and slows things down but
for sandbox this is acceptable. We gain the ability to check for memory
leaks in tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
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If we are to have driver model before relocation we need to support some
way of calling memory allocation routines.
The standard malloc() is pretty complicated:
1. It uses some BSS memory for its state, and BSS is not available before
relocation
2. It supports algorithms for reducing memory fragmentation and improving
performace of free(). Before relocation we could happily just not support
free().
3. It includes about 4KB of code (Thumb 2) and 1KB of data. However since
this has been loaded anyway this is not really a problem.
The simplest way to support pre-relocation malloc() is to reserve an area
of memory and allocate it in increasing blocks as needed. This
implementation does this.
To enable it, you need to define the size of the malloc() pool as described
in the README. It will be located above the pre-relocation stack on
supported architectures.
Note that this implementation is only useful on machines which have some
memory available before dram_init() is called - this includes those that
do no DRAM init (like tegra) and those that do it in SPL (quite a few
boards). Enabling driver model preior to relocation for the rest of the
boards is left for a later exercise.
Signed-off-by: Simon Glass <sjg@chromium.org>
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These don't really serve any purpose in the modern age. On the other hand
they show up as annoying control characters in my editor, which then happily
removes them.
I believe we can drop these characters from the file.
Signed-off-by: Simon Glass <sjg@chromium.org>
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'bool' is defined in random places. This patch consolidates them into a
single header file include/linux/types.h, using stdbool.h introduced in C99.
All other #define, typedef and enum are removed. They are all consistent with
true = 1, false = 0.
Replace FALSE, False with false. Replace TRUE, True with true.
Skip *.py, *.php, lib/* files.
Signed-off-by: York Sun <yorksun@freescale.com>
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On architectures where manual relocation
is needed, the 'malloc_bin_reloc' function
must be called after 'mem_malloc_init'.
Make the 'malloc_bin_reloc' function static
and call it directly from 'mem_malloc_init'
instead of calling that from board_init_{r,f}
functions of the affected architectures.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Andreas Bießmann <andreas.devel@gmail.com>
Cc: Jason Jin <Jason.jin@freescale.com>
Cc: Macpaul Lin <macpaul@andestech.com>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
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command.c:44:38: error: bad constant expression
dlmalloc.c:1468:2: warning: Using plain integer as NULL pointer
dlmalloc.c:1468:5: warning: Using plain integer as NULL pointer
dlmalloc.c:2176:12: warning: Using plain integer as NULL pointer
dlmalloc.c:2179:31: warning: Using plain integer as NULL pointer
dlmalloc.c:2382:14: warning: Using plain integer as NULL pointer
dlmalloc.c:2436:14: warning: Using plain integer as NULL pointer
dlmalloc.c:2582:31: warning: Using plain integer as NULL pointer
dlmalloc.c:2585:17: warning: Using plain integer as NULL pointer
dlmalloc.c:2646:14: warning: Using plain integer as NULL pointer
dlmalloc.c:2659:19: warning: Using plain integer as NULL pointer
dlmalloc.c:2692:19: warning: Using plain integer as NULL pointer
dlmalloc.c:2707:19: warning: Using plain integer as NULL pointer
dlmalloc.c:2708:14: warning: Using plain integer as NULL pointer
dlmalloc.c:2786:31: warning: Using plain integer as NULL pointer
dlmalloc.c:2801:12: warning: Using plain integer as NULL pointer
dlmalloc.c:2801:22: warning: Using plain integer as NULL pointer
dlmalloc.c:2926:27: warning: Using plain integer as NULL pointer
dlmalloc.c:2928:14: warning: Using plain integer as NULL pointer
dlmalloc.c:2929:12: warning: Using plain integer as NULL pointer
dlmalloc.c:3075:14: warning: Using plain integer as NULL pointer
hush.c:292:14: warning: symbol 'last_return_code' was not declared. Should it be static?
hush.c:293:5: warning: symbol 'nesting_level' was not declared. Should it be static?
hush.c:2175:20: warning: Using plain integer as NULL pointer
hush.c:2175:34: warning: Using plain integer as NULL pointer
hush.c:2210:41: warning: Using plain integer as NULL pointer
hush.c:2216:45: warning: Using plain integer as NULL pointer
hush.c:2249:25: warning: Using plain integer as NULL pointer
hush.c:2332:13: warning: symbol 'new_pipe' was not declared. Should it be static?
hush.c:2390:5: warning: symbol 'reserved_word' was not declared. Should it be static?
hush.c:2927:5: warning: symbol 'parse_stream' was not declared. Should it be static?
hush.c:3127:6: warning: symbol 'mapset' was not declared. Should it be static?
hush.c:3133:6: warning: symbol 'update_ifs_map' was not declared. Should it be static?
hush.c:3161:5: warning: symbol 'parse_stream_outer' was not declared. Should it be static?
hush.c:3295:34: warning: Using plain integer as NULL pointer
hush.c:3631:5: warning: symbol 'do_showvar' was not declared. Should it be static
image.c:1282:29: warning: Using plain integer as NULL pointer
image.c:1315:41: warning: Using plain integer as NULL pointer
image.c:1330:25: warning: Using plain integer as NULL pointer
image.c:1706:25: warning: Using plain integer as NULL pointer
main.c:510:10: warning: symbol 'hist_num' was not declared. Should it be static?
main.c:512:5: warning: symbol 'hist_list' was not declared. Should it be static?
main.c:513:6: warning: symbol 'hist_lines' was not declared. Should it be static?
usb_storage.c:195:6: warning: symbol 'usb_show_progress' was not declared. Should it be static?
usb_storage.c:440:48: warning: Using plain integer as NULL pointer
usb_storage.c:503:5: warning: symbol 'usb_stor_BBB_comdat' was not declared. Should it be static?
usb_storage.c:551:5: warning: symbol 'usb_stor_CB_comdat' was not declared. Should it be static?
usb_storage.c:629:55: warning: Using plain integer as NULL pointer
usb_storage.c:620:5: warning: symbol 'usb_stor_CBI_get_status' was not declared. Should it be static?
usb_storage.c:675:43: warning: Using plain integer as NULL pointer
usb_storage.c:668:5: warning: symbol 'usb_stor_BBB_clear_endpt_stall' was not declared. Should it be static?
usb_storage.c:679:5: warning: symbol 'usb_stor_BBB_transport' was not declared. Should it be static?
usb_storage.c:801:5: warning: symbol 'usb_stor_CB_transport' was not declared. Sh
xyzModem.c:104:1: warning: symbol 'CYGACC_COMM_IF_GETC_TIMEOUT' was not declared. Should it be static?
xyzModem.c:122:1: warning: symbol 'CYGACC_COMM_IF_PUTC' was not declared. Should it be static?
xyzModem.c:169:1: warning: symbol 'parse_num' was not declared. Should it be stat
note: hush.c's nesting_level deleted because not used.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
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This fixes the following warnings in dlmalloc seen with my gcc 4.6.
dlmalloc.c: In function 'malloc_bin_reloc':
dlmalloc.c:1493: warning: dereferencing pointer 'p' does break strict-aliasing rules
dlmalloc.c:1493: warning: dereferencing pointer 'p' does break strict-aliasing rules
dlmalloc.c:1490: note: initialized from here
dlmalloc.c:1493: note: initialized from here
This version is tested on avr32 arch boards.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
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Commit 21726a7 "Add assert() for debug assertions" broke building the
utx8245 board:
dlmalloc.c: In function 'do_check_chunk':
dlmalloc.c:1660: error: 'sz' undeclared (first use in this function)
dlmalloc.c:1660: error: (Each undeclared identifier is reported only once
dlmalloc.c:1660: error: for each function it appears in.)
dlmalloc.c: In function 'do_check_free_chunk':
dlmalloc.c:1689: error: 'next' undeclared (first use in this function)
dlmalloc.c: In function 'do_check_malloced_chunk':
dlmalloc.c:1748: error: 'sz' undeclared (first use in this function)
dlmalloc.c:1750: error: 'room' undeclared (first use in this function)
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
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assert() is like BUG_ON() but compiles to nothing unless DEBUG is defined.
This is useful when a condition is an error but a board reset is unlikely
to fix it, so it is better to soldier on in hope. Assertion failures should
be caught during development/test.
It turns out that assert() is defined separately in a few places in U-Boot
with various meanings. This patch cleans up some of these.
Build errors exposed by this change (and defining DEBUG) are also fixed in
this patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Since we set #define MORECORE_CLEARS 1, the code assumes 'sbrk' always
returns zero'd out memory. However since its possible that free()
returns memory back to sbrk() via malloc_trim we could possible get
non-zero'd memory from sbrk(). This is a problem for when code might
call calloc() and expect the memory to have been zero'd out.
There are two possible solutions to this problem.
1. change #define MORECORE_CLEARS 0
2. memset to zero memory returned to sbrk.
We go with the second since the sbrk being called to free up memory
should be pretty rare.
The following code problems an example test to show the issue. This
test code was inserted right after the call to mem_malloc_init().
...
u8 *p2;
int i;
printf("MALLOC TEST\n");
p1 = malloc(135176);
printf("P1 = %p\n", p1);
memset(p1, 0xab, 135176);
free(p1);
p2 = calloc(4097, 1);
printf("P2 = %p %p\n", p2, p2 + 4097);
for (i = 0; i < 4097; i++) {
if (p2[i] != 0)
printf("miscompare at byte %d got %x\n", i, p2[i]);
free(p2);
printf("END MALLOC TEST\n\n");
...
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Tested-by: Wolfgang Denk <wd@denx.de>
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By now, the majority of architectures have working relocation
support, so the few remaining architectures have become exceptions.
To make this more obvious, we make working relocation now the default
case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
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Fix these warnings:
dlmalloc.c: In function 'free':
dlmalloc.c:2507: warning: dereferencing pointer '({anonymous})' does break strict-aliasing rules
dlmalloc.c:2507: warning: dereferencing pointer '({anonymous})' does break strict-aliasing rules
dlmalloc.c:2507: warning: dereferencing pointer '({anonymous})' does break strict-aliasing rules
Some page(http://blog.worldofcoding.com/2010/02/solving-gcc-44-strict-aliasing-problems.html)
suggests adding __attribute__((__may_alias__)). Doing so makes the warnings go away.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Acked-by: Mike Frysinger <vapier@gentoo.org>
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Motivation:
* Old environment code used a pessimizing implementation:
- variable lookup used linear search => slow
- changed/added variables were added at the end, i. e. most
frequently used variables had the slowest access times => slow
- each setenv() would calculate the CRC32 checksum over the whole
environment block => slow
* "redundant" envrionment was locked down to two copies
* No easy way to implement features like "reset to factory defaults",
or to select one out of several pre-defined (previously saved) sets
of environment settings ("profiles")
* No easy way to import or export environment settings
======================================================================
API Changes:
- Variable names starting with '#' are no longer allowed
I didn't find any such variable names being used; it is highly
recommended to follow standard conventions and start variable names
with an alphanumeric character
- "printenv" will now print a backslash at the end of all but the last
lines of a multi-line variable value.
Multi-line variables have never been formally defined, allthough
there is no reason not to use them. Now we define rules how to deal
with them, allowing for import and export.
- Function forceenv() and the related code in saveenv() was removed.
At the moment this is causing build problems for the only user of
this code (schmoogie - which has no entry in MAINTAINERS); may be
fixed later by implementing the "env set -f" feature.
Inconsistencies:
- "printenv" will '\\'-escape the '\n' in multi-line variables, while
"printenv var" will not do that.
======================================================================
Advantages:
- "printenv" output much better readable (sorted)
- faster!
- extendable (additional variable properties can be added)
- new, powerful features like "factory reset" or easy switching
between several different environment settings ("profiles")
Disadvantages:
- Image size grows by typically 5...7 KiB (might shrink a bit again on
systems with redundant environment with a following patch series)
======================================================================
Implemented:
- env command with subcommands:
- env print [arg ...]
same as "printenv": print environment
- env set [-f] name [arg ...]
same as "setenv": set (and delete) environment variables
["-f" - force setting even for read-only variables - not
implemented yet.]
- end delete [-f] name
not implemented yet
["-f" - force delete even for read-only variables]
- env save
same as "saveenv": save environment
- env export [-t | -b | -c] addr [size]
export internal representation (hash table) in formats usable for
persistent storage or processing:
-t: export as text format; if size is given, data will be
padded with '\0' bytes; if not, one terminating '\0'
will be added (which is included in the "filesize"
setting so you can for exmple copy this to flash and
keep the termination).
-b: export as binary format (name=value pairs separated by
'\0', list end marked by double "\0\0")
-c: export as checksum protected environment format as
used for example by "saveenv" command
addr: memory address where environment gets stored
size: size of output buffer
With "-c" and size is NOT given, then the export command will
format the data as currently used for the persistent storage,
i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and
prepend a valid CRC32 checksum and, in case of resundant
environment, a "current" redundancy flag. If size is given, this
value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32
checksum and redundancy flag will be inserted.
With "-b" and "-t", always only the real data (including a
terminating '\0' byte) will be written; here the optional size
argument will be used to make sure not to overflow the user
provided buffer; the command will abort if the size is not
sufficient. Any remainign space will be '\0' padded.
On successful return, the variable "filesize" will be set.
Note that filesize includes the trailing/terminating '\0'
byte(s).
Usage szenario: create a text snapshot/backup of the current
settings:
=> env export -t 100000
=> era ${backup_addr} +${filesize}
=> cp.b 100000 ${backup_addr} ${filesize}
Re-import this snapshot, deleting all other settings:
=> env import -d -t ${backup_addr}
- env import [-d] [-t | -b | -c] addr [size]
import external format (text or binary) into hash table,
optionally deleting existing values:
-d: delete existing environment before importing;
otherwise overwrite / append to existion definitions
-t: assume text format; either "size" must be given or the
text data must be '\0' terminated
-b: assume binary format ('\0' separated, "\0\0" terminated)
-c: assume checksum protected environment format
addr: memory address to read from
size: length of input data; if missing, proper '\0'
termination is mandatory
- env default -f
reset default environment: drop all environment settings and load
default environment
- env ask name [message] [size]
same as "askenv": ask for environment variable
- env edit name
same as "editenv": edit environment variable
- env run
same as "run": run commands in an environment variable
======================================================================
TODO:
- drop default env as implemented now; provide a text file based
initialization instead (eventually using several text files to
incrementally build it from common blocks) and a tool to convert it
into a binary blob / object file.
- It would be nice if we could add wildcard support for environment
variables; this is needed for variable name auto-completion,
but it would also be nice to be able to say "printenv ip*" or
"printenv *addr*"
- Some boards don't link any more due to the grown code size:
DU405, canyonlands, sequoia, socrates.
=> cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>,
Stefan Roese <sr@denx.de>,
Heiko Schocher <hs@denx.de>
- Dropping forceenv() causes build problems on schmoogie
=> cc: Sergey Kubushyn <ksi@koi8.net>
- Build tested on PPC and ARM only; runtime tested with NOR and NAND
flash only => needs testing!!
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>,
Cc: Stefan Roese <sr@denx.de>,
Cc: Heiko Schocher <hs@denx.de>
Cc: Sergey Kubushyn <ksi@koi8.net>
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Signed-off-by: Karl Beldan <karl.beldan@gmail.com>
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When malloc() was called before it was properly initialized
(as would happen if when used before relocation to RAM) it returned
random, non-NULL values, which called all kinds of difficult to debug
subsequent errors.
Make sure to return NULL when initialization was not done yet.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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Add #ifdefs where necessary to not perform relocation fixups. This
allows boards/architectures which support relocation to trim a decent
chunk of code.
Note that this patch doesn't add #ifdefs to architecture-specific code
which does not support relocation.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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Signed-off-by: Stefan Roese <sr@denx.de>
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If common.h isn't first we can get CONFIG_ options defined in the
board config file ignored. This can cause an issue if any of those
config options impact the size of types of data structures
(eg CONFIG_PHYS_64BIT).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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- 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)
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