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2010-06-16Usermode exec-stack fixPaul Brook
When loading a shared library that requires an executable stack, glibc uses the mprotext PROT_GROWSDOWN flag to achieve this. We don't support PROT_GROWSDOWN. Add a special case to handle changing the stack permissions in this way. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-29Pre-allocate guest address spacePaul Brook
Allow pre-allocation of the guest virtual address space in usermode emulation. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-19microblaze: Update elf machine nums.Edgar E. Iglesias
189 was allocated in upstream binutils. 0xbaab was the old temporary value. Still used by some tools and the linux kernel. I've seen 115 in older gdb versions, but lets ignore that one. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-05-19microblaze: Add linux-user core dumping support.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-05-05Better default guest_basePaul Brook
Avoid loading linux-user applications in address space already used/reserved by the host. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-05-05Remove PAGE_RESERVEDPaul Brook
The usermode PAGE_RESERVED code is not required by the current mmap implementation, and is already broken when guest_base != 0. Unfortunately the bsd emulation still uses the old mmap implementation, so we can't rip it out altogether. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-28linux-user/ppc: use the Linux register layoutRob Landley
The dynamic linker converts the Linux layout to the AIX layout and is reentrant so it won't do it a second time if it's already been converted. In short it work just fine with either register layout. OTOH, statically linked binaries expect a Linux layout. Remove code converting the Linux layout to AIX layout so that all binaries are presented the Linux Layout. Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-27linux-user: Use RLIMIT_STACK for default stack size.Richard Henderson
The current default stack limit of 512kB is far too small; a fair number of gcc testsuite failures (for all guests) are directly attributable to this. Using the -s option in every invocation of the emulator is annoying to say the least. A reasonable compromise seems to be to honor the system rlimit. At least on two Linux distributions, this is set to 8MB and 10MB respectively. If the system does not limit the stack, then we're no worse off than before. At the same time, rename the variable from x86_stack_size and change the ultimate fallback size from 512kB to 8MB. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-12Fix usermode virtual address typePaul Brook
Usermode virtual addresses are abi_ulong, not target_ulong. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-01Disassembler symbol lookup fixPaul Brook
Fix function signature for userspace disassembler symbol lookup. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-01-17fix linux-user microblaze ELF_ARCH definitionMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-19linux-user: add core dump support for SHNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: add core dump support for M68KNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: add core dump support for MIPSNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: add core dump support for PPCNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: fix ARM core dumps on opposite-endian hostsNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: commonify definitions of target typedefsNathan Froyd
There's no sense in separately declaring target_{elf_greg,uid,gid,pid}_t for every architecture. Just declare them once with appropriate USE_UID16 handling. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: fix ELF_USE_CORE_DUMP/USE_ELF_CORE_DUMP confusionNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: use TARGET_ABI_FMT_lx to print abi_ulong typesAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-13target-alpha: Drop bogus UNIQ initial value on Linux.Richard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-16linux-user: Update ARM hwcapsRiku Voipio
Update ARM hwcaps to match Linux kernel 2.6.31 state Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-10-04linux-user: fix "#if 0"'d printf()Paul Bolle
Make an "#if 0"'d printf() in load_elf_binary(), probably left to aid in debugging, reflect what the actual code does. The current printf() will only confuse those who "#if 1" it (it certainly confused me enough to write this trivial patch). Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori
In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-09-30elfload: fix coding style nitMichael S. Tsirkin
Put space between = and * when dereferencing a pointer, to avoid confusion with old-style "*=" Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-20Compile loader only onceBlue Swirl
Callers must pass ELF machine, byte swapping and symbol LSB clearing information to ELF loader. A.out loader needs page size information, pass that too as a parameter. Extract prototypes to a separate file. Move loader.[ch] and elf_ops.h under hw. Adjust callers. Also use target_phys_addr_t instead of target_ulong for addresses: loader addresses aren't virtual. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12Fix sys-queue.h conflict for goodBlue Swirl
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896, f40d753718c72693c5f520f0d9899f6e50395e94, 96555a96d724016e13190b28cffa3bc929ac60dc and 3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-08-10Fix symfind.Laurent Desnogues
this patch fixes an issue in symfind. Assume you have the following symbols: Address Size 0045bca0 00000080 T s0 0045bd20 00000112 T s1 You'll notice that s1 is s0 + size. So the current symfind will find that address 0045bd20 belongs to s0 instead of s1. Laurent Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
2009-08-01More NULL pointer fixesBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-18Use correct byteswap routine for elf_notemalc
All elf64_note structure members are Elf64_Word (which is 32bit value) hence using bswaptls to byteswap it on 64bit platforms is incorrect. Signed-off-by: malc <av1474@comtv.ru>
2009-07-18Avoid name clashes with symbols that leak from system headersmalc
Signed-off-by: malc <av1474@comtv.ru>
2009-07-17ELF codedump build failuresLaurent Desnogues
Rename ELF coredump types to avoid conflict with the corresponding host types. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
2009-07-17Userspace guest address offsettingPaul Brook
Re-implement GUEST_BASE support. Offset guest ddress space by default if the guest binary contains regions below the host mmap_min_addr. Implement support for i386, x86-64 and arm hosts. Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-06-16linux-user: added x86 and x86_64 support for ELF coredumpMika Westerberg
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
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>
2009-05-26microblaze: linux-user support.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-16support ELF_HWCAP for PPPCNathan Froyd
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: malc <av1474@comtv.ru>
2009-01-15Convert references to logfile/loglevel to use qemu_log*() macrosaliguori
This is a large patch that changes all occurrences of logfile/loglevel global variables to use the new qemu_log*() macros. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6338 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Remove all traces of __powerpc__malc
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the ubiquitous define which should be used to test whether gcc targets PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-22* Use function pointers for symbol lookup (currently for elf32 and elf64,pbrook
could be expanded). This also fixes the bug with mips elf64 symbols in current Qemu trunk. * Use quicksort and binary search for symbol lookup. * Remove unneeded entries from symbol table. This reduced a typical table size (linux mips kernel) from 1764487 to 11656 entries. Signed-off-by: Stefan Weil <weil@mail.berlios.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5510 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Export x86_stack_size in qemu.hblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5427 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-30Silence some warnings about uninitialized variablesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5362 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Suppress gcc 4.x -Wpointer-sign (included in -Wall) warningsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5275 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-20Kludge to support linux-user on a PPC64malc
Some headers (e.g. signal.h) include asm/elf.h and the chaos of macro redefinitions ensues, this kludge avoids it. Alternative way to fight that would be to change all ELF_XXX and some other definitions to QEMU_ELF_XXX or something to that effect. This patch concludes the quest for enabling linux-user on PPC64, however, since qemu_mallocz uses mmap and, at least on this system, mmap tends to return values that do not fit into 32bit, emulation for 32bit targets does not work without some hacks wich are to disgusting to commit (and as `man mmap' tells us MAP_32BIT is only implemented on X86_64) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5037 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-07Multithreaded locking fixes.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4692 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-26Implement AT_CLKTCK.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4113 c046a42c-6fe2-441c-8c8c-71466251a162
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
2007-10-28Implement missing MIPS supervisor mode bits.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3472 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-27PowerPC user-mode fix: MSR is now entirelly set-up in the cpu_reset routine.j_mayer
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3457 c046a42c-6fe2-441c-8c8c-71466251a162
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