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2015-09-28linux-user: remove MAX_ARG_PAGES limitStefan Brüns
Instead of creating a temporary copy for the whole environment and the arguments, directly copy everything to the target stack. For this to work, we have to change the order of stack creation and copying the arguments. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-03-13cpu: Move opaque field from CPU_COMMON to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-01-10linux-user: Remove regs parameter of load_elf_binary and load_flt_binaryWill Newton
The regs parameter is not used anywhere, so remove it. Signed-off-by: Will Newton <will.newton@linaro.org> Reviewed-by: Erik de Castro Lopo <erikd@mega-nerd.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-09-24linux-user: add support of binfmt_misc 'O' flagLaurent Vivier
The binfmt_misc module can calculate the credentials and security token according to the binary instead of to the interpreter if the 'C' flag is enabled. To be able to execute non-readable binaries, this flag implies 'O' flag. When 'O' flag is enabled, bintfmt_misc opens the file for reading and pass the file descriptor to the interpreter. References: linux/Documentation/binfmt_misc.txt ['O' and 'C' description] linux/fs/binfmt_misc.c linux/fs/binfmt_elf.c [ AT_EXECFD usage ] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-09linux-user: Change thread_env to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-12linux-user: If loading fails, print error as string, not numberPeter Maydell
If the attempt to load the guest executable fails, print the error message as a string, not a number. This requires us to fix a couple of places in loader_exec() where we were returning -1 instead of a valid negative errno. The change allows us to drop the "Unknown binary format" message because the strerror-enhanced message is now a more self-explanatory "Error while loading $guest-binary: Exec format error". Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-11-11linux-user/elfload.c: Don't memset(NULL..) if malloc() failedPeter Maydell
If a malloc() in copy_elf_strings() failed we would call memset() before the "did malloc fail?" check. Fix this by moving to the glib alloc/free routines for this memory so we can use g_try_malloc0 rather than having a separate memset(). Spotted by Coverity (see bug 887883). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-21linuxload: id_change was a write only variableJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-01-07Remove dead code for ARM semihosting commandline handlingWolfgang Schildbach
There are some bits in the code which were used to store the commandline for the semihosting call. These bits are now write-only and can be removed. Signed-off-by: Wolfgang Schildbach <wschi@dolby.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2010-07-29linux-user: Reduce lseek+reads while loading elf files.Richard Henderson
Define BPRM_BUF_SIZE to 1k and read that amount initially. If the data we want from the binary is in this buffer, use it instead of reading from the file again. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-04-25linux-user: Remove ELFLOAD32.Richard Henderson
The ABI-specific types used by linux_binprm and image_info are different after forcing TARGET_ABI32 on. Which means that the parameters that load_elf_binary_multi sees are not those that loader_exec passed. This is inherently broken and is more trouble than it's worth fixing. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-10-16linux-user: don't zero a buffer twicePaul Bolle
prepare_binprm() zeroes bprm->buf. That buffer is already zeroed in main() and hasn't been touched since so that is not necessary. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-08-01More NULL pointer fixesBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-16linux-user: implemented ELF coredump support for ARM targetMika Westerberg
When target process is killed with signal (such signal that should dump core) a coredump file is created. This file is similar than coredump generated by Linux (there are few exceptions though). Riku Voipio: added support for rlimit Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2007-11-16suppressed tgetx and tputx (initial patch by Thayne Harbaugh)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3653 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-11Linux user memory access API change (initial patch by Thayne Harbaugh)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3583 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-14 Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3396 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-09 Support for executing 32 bit SPARC32PLUS files for Sparc64 user emulatorblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3378 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths
the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-03Fix typo in comment.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2933 c046a42c-6fe2-441c-8c8c-71466251a162
2006-11-19Arm semihosted commandline support (Wolfgang Schildbach).pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2216 c046a42c-6fe2-441c-8c8c-71466251a162
2006-06-11bFLT loader (for uClinux binaries).pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1951 c046a42c-6fe2-441c-8c8c-71466251a162