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-Wextra enables a bunch of rather useful checks which this fixes.
This changes the return value for the case when no ELF headers were found
to avoid (ugly-ish) cast of -1 to unsigned.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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Changes:
v2:
* cast the return value to (int)
* added missing (long)
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Implement elf_get_file_size to determine the size of an ELF image
that has been loaded into a buffer much larger than the actual size
of the original file. We determine the size by searching for the
farthest offset declared by the ELF headers.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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c2358afb40d4 ("Add support for 64bit LE ABI v1 and v2 support") added
little endian ELF support for one of two ELF loading helpers, this fixes
oversight. With this changes, 'boot disk:2,boot\zImage' is able to handle
little-endian zimages.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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When compiling SLOF with GCC 8.1, I currently get a lot of these errors:
ERROR: Unhandled relocation (A) type 26
Type 26 is the "relative 32-bit" relocation. We can simply ignore it
(like the other relative relocations - REL14, REL24 and REL64) to
shut up these error messages.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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Trampoline code in the LE binary were helping fix this. This patch now
takes care of switching the mode to LE for LE elf binaries.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
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Prevent loading of elf files which does not have virtual address same
as physical address.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
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Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
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v2: With the parameters changed for go-64, kernel loading from commandline broke
v3: (client-exec) calls start-elf64 directly, fix args
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We byte swap the entire header in place in elf_check_file.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
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Most of these errors were found by codespell:
controler -> controller
appropiate -> appropriate
devide -> divide
comming -> coming
seperate -> separate
reponsible -> responsible
initialization -> initialization
successfull -> successful
whithin -> within
recieve -> receive
wich -> which
occurence -> occurrence
beggining -> beginning
accessable -> accessible
proccess -> process
succesfuly -> successfully
immediatly -> immediately
prefered -> preferred
avaliable -> available
threshhold -> threshold
statistsics -> statistics
endianess -> endianness
positon -> position
writen -> written
occurence -> occurrence
upto -> up to
overwriten -> overwritten
availabe -> available
enviroment -> environment
intruction -> instruction
thru -> through
substract -> subtract
occured -> occurred
begining -> beginning
lenght -> length
atributes -> attributes
preceeding -> preceding
defintion -> definition
decriptor -> descriptor
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
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Cleaned up the toc-relative assembly of net-snk, fixed the Makefiles, save the
modules as ELF files instead of raw binaries, adjust the net-snk base address
and the load-base variable... a lot of changes were required to make the net-snk
and the snk modules relocatable, too. But now it should be possible to relocate
all files so that the firmware also runs with less than 256 MiB RAM.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
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It's cumbersome to maintain code twice, in Forth and in C, and now that libelf
has a new important feature (relocation), I removed most of the old Forth
functions for ELF loading and use the libelf everywhere instead.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
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Split elf.c into elf32.c and elf64.c for better readability. Added relocation
code to libelf for 64-bit ELF images, modified the Paflof Makefile to link
the executable with relocation information and load Paflof now to the upper
end of the memory.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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