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* target-arm: add support for v8 SHA1 and SHA256 instructionsArd Biesheuvel2014-06-091-0/+2
| | | | | | | | | | | | | | | | | | This adds support for the SHA1 and SHA256 instructions that are available on some v8 implementations of Aarch32. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1401386724-26529-2-git-send-email-peter.maydell@linaro.org [PMM: * rebase * fix bad indent * add a missing UNDEF check for Q!=1 in the 3-reg SHA1/SHA256 case * use g_assert_not_reached() * don't re-extract bit 6 for the 2-reg-misc encodings * set the ELF HWCAP2 bits for the new features ] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user/elfload.c: Support ARM HWCAP2 flagsPeter Maydell2014-05-021-1/+29
| | | | | | | | | The ARM kernel has chosen to spill into the HWCAP2 ELF feature bit flags early, even though it hasn't yet exhausted all 32 bits of the HWCAP word. Add support for setting this in the same way we do for HWCAP. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user/elfload.c: Fix A64 code which was incorrectly acting like A32Peter Maydell2014-05-021-13/+73
| | | | | | | | | | | | | The ARM target-specific code in elfload.c was incorrectly allowing the 64-bit ARM target to use most of the existing 32-bit definitions: most noticably this meant that our HWCAP bits passed to the guest were wrong, and register handling when dumping core was totally broken. Fix this by properly separating the 64 and 32 bit code, since they have more differences than similarities. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-stable@nongnu.org Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user/elfload.c: Update ARM HWCAP bitsPeter Maydell2014-05-021-2/+20
| | | | | | | | | | | | | | | | | | The kernel has added support for a number of new ARM HWCAP bits; add them to QEMU, including support for setting them where we have a corresponding CPU feature bit. We were also incorrectly setting the VFPv3D16 HWCAP -- this means "only 16 D registers", not "supports 16-bit floating point format"; since QEMU always has 32 D registers for VFPv3, we can just remove the line that incorrectly set this bit. The kernel does not set the HWCAP_FPA even if it is providing FPA emulation via nwfpe, so don't set this bit in QEMU either. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-stable@nongnu.org Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user/elfload.c: Fix incorrect ARM HWCAP bitsPeter Maydell2014-05-021-4/+5
| | | | | | | | | | | | The ELF HWCAP bits for ARM features THUMBEE, NEON, VFPv3 and VFPv3D16 are all off by one compared to the kernel definitions. Fix this discrepancy and add in the missing CRUNCH bit which was the cause of the off-by-one error. (We don't emulate any of the CPUs which have that weird hardware, so it's otherwise uninteresting to us.) Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Assert stack used for auxvec, envp, argvJames Hogan2014-05-021-0/+2
| | | | | | | | | | | Assert that the amount of stack space used for auxvec, envp & argv exactly matches the amount allocated. This catches if DLINFO_ITEMS isn't updated when another NEW_AUX_ENT is added. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Correct DLINFO_ITEMSJames Hogan2014-03-261-1/+1
| | | | | | | | | | | | | | | Commit a07c67dfccb1 (Implement AT_CLKTCK.) back in March 2008 added a new auxvec entry but didn't increment DLINFO_ITEMS, so it's been out of sync ever since. Bump it up to 14 so that it matches the number of NEW_AUX_ENT's that need to be counted in create_elf_tables(). Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Paul Brook <paul@codesourcery.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Don't reserve space for commpage for AArch64Peter Maydell2014-03-171-1/+4
| | | | | | | | | | AArch64 Linux, unlike AArch32, doesn't use a commpage. This means we should not be reserving room in the guest address space for one. Fixes LP:1287195. Reported-by: Amanieu d'Antras <amanieu@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* cpu: Move opaque field from CPU_COMMON to CPUStateAndreas Färber2014-03-131-4/+6
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* linux-user/elfload.c: Avoid calling g_free() on uninitialized dataPeter Maydell2014-02-181-4/+12
| | | | | | | | | | | Avoid calling g_free() on unintialized data in the error-handling paths in elf_core_dump() by splitting the initialization of the elf_note_info struct out of fill_note_info() so that it's always valid to call free_note_info() whether we got to the point of being able to fill_note_info() or not. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Remove regs parameter of load_elf_binary and load_flt_binaryWill Newton2014-01-101-2/+1
| | | | | | | | | 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>
* linux-user: Add AArch64 supportAlexander Graf2013-09-101-2/+13
| | | | | | | | | | | | | | | | | | This patch adds support for AArch64 in all the small corners of linux-user (primarily in image loading and startup code). Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1378235544-22290-22-git-send-email-peter.maydell@linaro.org Message-id: 1368505980-17151-11-git-send-email-john.rigby@linaro.org [PMM: * removed some unnecessary #defines from syscall.h * catch attempts to use a 32 bit only cpu with aarch64-linux-user * termios stuff moved into its own patch * we specify our minimum uname version here now ] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* cpu: Use QTAILQ for CPU listAndreas Färber2013-09-031-1/+1
| | | | | | | Introduce CPU_FOREACH(), CPU_FOREACH_SAFE() and CPU_NEXT() shorthand macros. Signed-off-by: Andreas Färber <afaerber@suse.de>
* linux-user: Change thread_env to CPUStateAndreas Färber2013-07-091-7/+9
| | | | Signed-off-by: Andreas Färber <afaerber@suse.de>
* cpu: Make first_cpu and next_cpu CPUStateAndreas Färber2013-07-091-3/+4
| | | | | | | | | | | | Move next_cpu from CPU_COMMON to CPUState. Move first_cpu variable to qom/cpu.h. gdbstub needs to use CPUState::env_ptr for now. cpu_copy() no longer needs to save and restore cpu_next. Acked-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Rebased, simplified cpu_copy()] Signed-off-by: Andreas Färber <afaerber@suse.de>
* target-i386: Replace cpuid_*features fields with a feature word arrayEduardo Habkost2013-05-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | This replaces the feature-bit fields on both X86CPU and x86_def_t structs with an array. With this, we will be able to simplify code that simply does the same operation on all feature words (e.g. kvm_check_features_against_host(), filter_features_for_kvm(), add_flagname_to_bitmaps(), CPU feature-bit property lookup/registration, and the proposed "feature-words" property) The following field replacements were made on X86CPU and x86_def_t: (cpuid_)features -> features[FEAT_1_EDX] (cpuid_)ext_features -> features[FEAT_1_ECX] (cpuid_)ext2_features -> features[FEAT_8000_0001_EDX] (cpuid_)ext3_features -> features[FEAT_8000_0001_ECX] (cpuid_)ext4_features -> features[FEAT_C000_0001_EDX] (cpuid_)kvm_features -> features[FEAT_KVM] (cpuid_)svm_features -> features[FEAT_SVM] (cpuid_)7_0_ebx_features -> features[FEAT_7_0_EBX] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* elfload: use abi_llong/ullong instead of target_llong/ullongPaolo Bonzini2013-04-181-2/+2
| | | | | | | The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* elfload: use abi_int/uint instead of target_int/uintPaolo Bonzini2013-04-181-7/+7
| | | | | | | The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* elfload: use abi_short/ushort instead of target_short/ushortPaolo Bonzini2013-04-181-3/+3
| | | | | | | The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* elfload: use tswapreg consistently in elf_core_copy_regsPaolo Bonzini2013-04-181-57/+57
| | | | | | Reviewed-by: Peter Maydell <peter.maydell@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* elfload: fix size of registers for N32Paolo Bonzini2013-04-181-7/+14
| | | | | | | | | | Registers are 64-bit in size for the MIPS n32 ABI. Define target_elf_greg_t accordingly, and use the correct function to do endian swaps. Reviewed-by: Peter Maydell <peter.maydell@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* elfload: fix size of ABI-dependent fields in core dumpsPaolo Bonzini2013-04-181-9/+9
| | | | | | | | | | | Some fields in core dumps are 32-bit in 32-or-64 environments (ppc64abi32, sparc32plus). Use abi_long/ulong for those. Also, the fields of target_elf_siginfo are ints. Use tswap32 to convert them. Reviewed-by: Peter Maydell <peter.maydell@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* build: kill libdis, move disassemblers to disas/Paolo Bonzini2012-12-191-1/+1
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: remove two unchecked uses of strdupJim Meyering2012-10-051-5/+7
| | | | | | | | | Remove two uses of strdup (use g_path_get_basename instead), and add a comment that this strncpy use is ok. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* linux-user: Use init_guest_space when -R and -B are specifiedMeador Inge2012-08-141-9/+50
| | | | | | | | | | | | | Roll the code used to initialize the guest memory space when -R or -B is used into 'init_guest_space' and then call 'init_guest_space' from the driver. This way the reserved guest memory space can be probed for. Calling 'mmap' just once as is currently done is not guaranteed to succeed since the host address space validation might fail. Signed-off-by: Meador Inge <meadori@codesourcery.com> [PMM: Fixed minor whitespace errors.] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user: Factor out guest space probing into a functionMeador Inge2012-08-141-33/+77
| | | | | | Signed-off-by: Meador Inge <meadori@codesourcery.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* target-or32: Add linux user supportJia Liu2012-07-271-0/+41
| | | | | | | Add QEMU OpenRISC linux user support. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Userspace ARM BE8 supportPaul Brook2012-04-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Add support for ARM BE8 userspace binaries. i.e. big-endian data and little-endian code. In principle LE8 mode is also possible, but AFAIK has never actually been implemented/used. System emulation doesn't have any useable big-endian board models, but should in principle work once you fix that. Dynamic endianness switching requires messing with data accesses, preferably with TCG cooperation, and is orthogonal to BE8 support. Signed-off-by: Paul Brook <paul@codesourcery.com> [PMM: various changes, mostly as per my suggestions in code review: * rebase * use EF_ defines rather than hardcoded constants * make bswap_code a bool for future VMSTATE macro compatibility * update comment in cpu.h about TB flags bit field usage * factor out load-code-and-swap into arm_ld*_code functions and get_user_code* macros * fix stray trailing space at end of line * added braces in disas.c to satisfy checkpatch ] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* arm-linux-user: fix elfload.c's AT_HWCAP to reflect cpu features.Benoit Canet2012-04-061-4/+27
| | | | | | | | | | | | | | The cpu capabilities passed by the elf loader in AT_HWCAP where a constant. Make AT_HWCAP reflect the emulated cpu features in order to give correct clues to eglibc. Riku Voipio: fixed to apply to current head Fix : [Bug 887516] [NEW] VFP support reported for the PXA270 Signed-off-by: Benoit Canet <benoit.canet@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* Rename CPUState -> CPUArchStateAndreas Färber2012-03-141-8/+8
| | | | | | | | | | | | | Scripted conversion: for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do sed -i "s/CPUState/CPUArchState/g" $file done All occurrences of CPUArchState are expected to be replaced by QOM CPUState, once all targets are QOM'ified and common fields have been extracted. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
* linux-user: Don't overuse CPUStateAndreas Färber2012-03-141-12/+12
| | | | | | | | In target-specific code use CPU*State. While at it, fix indentation on those lines. Signed-off-by: Andreas Färber <afaerber@suse.de>
* linux-user: save auxv lengthAlexander Graf2012-02-021-11/+4
| | | | | | | | | | | | | | We create our own AUXV segment on stack and save a pointer to it. However we don't save the length of it, so any code that wants to do anything useful with it later on has to walk it again. Instead, let's remember the length of our AUXV segment. This simplifies later uses by a lot. (edited by Riku to apply to qemu HEAD) Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* elf: Improve symbol lookup (optimize, fix for bsd-user)Stefan Weil2012-01-101-7/+4
| | | | | | | | | | | | | | Coverity complained about local variable key which was only partially initiated. Only key.st_value was set. As this was also the only part of key which was used in function symfind, the code could be optimized by directly passing a pointer to orig_addr. In bsd-user/elfload.c, fix ec822001a2f26eef8701194714f6482b6d852de2 was missing. This was a simple replacement of > by >= in symfind, so I fixed it here without creating an additional patch. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
* fix spelling in linux-user sub directoryDong Xu Wang2011-12-021-1/+1
| | | | | | Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
* linux-user/elfload.c: Don't memset(NULL..) if malloc() failedPeter Maydell2011-11-111-3/+2
| | | | | | | | | | | 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>
* ppc64-linux-user: Properly interpret the entry function descriptor.Richard Henderson2011-10-271-4/+4
| | | | | | | | | Don't confuse the load address with the load bias. They're equal for ET_DYN objects (i.e. ld.so) but different for ET_EXEC objects (i.e. statically linked). Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* linux-user: Implement new ARM 64 bit cmpxchg kernel helperDr. David Alan Gilbert2011-09-091-2/+54
| | | | | | | | | | | | | | linux-user: Implement new ARM 64 bit cmpxchg kernel helper Linux 3.1 will have a new kernel-page helper for ARM implementing 64 bit cmpxchg. Implement this helper in QEMU linux-user mode: * Provide kernel helper emulation for 64bit cmpxchg * Allow guest to object to guest offset to ensure it can map a page * Populate page with kernel helper version Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Dr. David Alan Gilbert <david.gilbert@linaro.org>
* Use glib memory allocation and free functionsAnthony Liguori2011-08-201-13/+13
| | | | | | qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* set ELF_HWCAP for SPARC and SPARC64Artyom Tarasenko2011-07-141-2/+4
| | | | | | | | setting ELF_HWCAP fixes dynamic library loading for Linux/sparc64 This patch allows loading busybox from Debian 6 initrd Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* linux-user: Define AT_RANDOM to support target stack protection mechanism.Laurent ALFONSI2011-06-211-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dynamic linker from the GNU C library v2.10+ uses the ELF auxiliary vector AT_RANDOM [1] as a pointer to 16 bytes with random values to initialize the stack protection mechanism. Technically the emulated GNU dynamic linker crashes due to a NULL pointer derefencement if it is built with stack protection enabled and if AT_RANDOM is not defined by the QEMU ELF loader. [1] This ELF auxiliary vector was introduced in Linux v2.6.29. This patch can be tested with the code above: #include <elf.h> /* Elf*_auxv_t, AT_RANDOM, */ #include <stdio.h> /* printf(3), */ #include <stdlib.h> /* exit(3), EXIT_*, */ #include <stdint.h> /* uint8_t, */ #include <string.h> /* memcpy(3), */ #if defined(__LP64__) || defined(__ILP64__) || defined(__LLP64__) # define Elf_auxv_t Elf64_auxv_t #else # define Elf_auxv_t Elf32_auxv_t #endif main(int argc, char* argv[], char* envp[]) { Elf_auxv_t *auxv; /* *envp = NULL marks end of envp. */ while (*envp++ != NULL); /* auxv->a_type = AT_NULL marks the end of auxv. */ for (auxv = (Elf_auxv_t *)envp; auxv->a_type != AT_NULL; auxv++) { if (auxv->a_type == AT_RANDOM) { int i; uint8_t rand_bytes[16]; printf("AT_RANDOM is: 0x%x\n", auxv->a_un.a_val); memcpy(rand_bytes, (const uint8_t *)auxv->a_un.a_val, sizeof(rand_bytes)); printf("it points to: "); for (i = 0; i < 16; i++) { printf("0x%02x ", rand_bytes[i]); } printf("\n"); exit(EXIT_SUCCESS); } } exit(EXIT_FAILURE); } Changes introduced in v2 and v3: * Fix typos + thinko (AT_RANDOM is used for stack canary, not for ASLR) * AT_RANDOM points to 16 random bytes stored inside the user stack. * Add a small test program. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Signed-off-by: Laurent ALFONSI <laurent.alfonsi@st.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* linux-user: Handle images where lowest vaddr is not page alignedPeter Maydell2011-06-211-57/+73
| | | | | | | | | | | | | | | | | | | Fix a bug in the linux-user ELF loader code where it was not correctly handling images where the lowest vaddr to be loaded was not page aligned. The problem was that the code to probe for a suitable guest base address was changing the 'loaddr' variable (by rounding it to a page boundary), which meant that the load bias would then be incorrectly calculated unless loaddr happened to already be page-aligned. Binaries generated by gcc with the default linker script do start with a loadable segment at a page-aligned vaddr, so were unaffected. This bug was noticed with a binary created by the Google Go toolchain for ARM. We fix the bug by refactoring the "probe for guest base" code out into its own self-contained function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* linux-user: Fix the load of ELF files that have no "useful" symbolCédric VINCENT2011-06-211-15/+19
| | | | | | | | | | | | | | | | | | | | | This patch fixes a "double free()" due to "realloc(syms, 0)" in the loader when the ELF file has no "useful" symbol, as with the following example (compiled with "sh4-linux-gcc -nostdlib"): .text .align 1 .global _start _start: mov #1, r3 trapa #40 // syscall(__NR_exit) nop The bug appears when the log (option "-d") is enabled. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Signed-off-by: Yves JANIN <yves.janin@st.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Reviewed-by: Richard Henderson <rth@twiddle.net>
* s390x: s390x-linux-user supportUlrich Hecht2011-05-201-0/+19
| | | | | | | | This patch adds support for running s390x binaries in the linux-user emulation code. Signed-off-by: Ulrich Hecht <uli@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
* unicore32: necessary modifications for other files to support unicore32Guan Xuetao2011-04-121-0/+74
| | | | | Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* linux-user: correct core dump formatLaurent Vivier2011-02-171-16/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows to really use the core dumped by qemu with guest architecture tools. - it adds a missing bswap_phdr() for the program headers of memory regions. "objdump -x" sample: BEFORE: 0x1000000 off 0x00200000 vaddr 0x00000400 paddr 0x00000000 align 2**21 filesz 0x00000000 memsz 0x00100000 flags --- 0x1000000 off 0x00200000 vaddr 0x00100400 paddr 0x00000000 align 2**21 filesz 0x00000000 memsz 0x00080000 flags --- 6000000 AFTER: LOAD off 0x00002000 vaddr 0x00040000 paddr 0x00000000 align 2**13 filesz 0x00000000 memsz 0x00001000 flags --- LOAD off 0x00002000 vaddr 0x00041000 paddr 0x00000000 align 2**13 filesz 0x00000000 memsz 0x00000800 flags rw- - it doesn't pad the note size to sizeof(int32_t). On m68k the NT_PRSTATUS note size is 154 and must not be rounded up to 156, because this value is checked by objdump and gdb. "gdb" symptoms: "warning: Couldn't find general-purpose registers in core file." "objdump -x" sample: BEFORE: Sections: Idx Name Size VMA LMA File off Algn 0 note0 000001c4 00000000 00000000 000003b4 2**0 CONTENTS, READONLY 1 .auxv 00000070 00000000 00000000 00000508 2**2 CONTENTS 2 proc1 00100000 00000400 00000000 00200000 2**10 READONLY AFTER: Sections: Idx Name Size VMA LMA File off Algn 0 note0 000001c4 00000000 00000000 000003b4 2**0 CONTENTS, READONLY 1 .reg/19022 00000050 00000000 00000000 0000040e 2**2 CONTENTS 2 .reg 00000050 00000000 00000000 0000040e 2**2 CONTENTS 3 .auxv 00000070 00000000 00000000 00000508 2**2 CONTENTS 4 load1 00000000 00040000 00000000 00002000 2**13 ALLOC, READONLY Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
* linux-user/elfload: add FDPIC supportMike Frysinger2011-02-091-0/+71
| | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
* linux-user: Fix possible realloc memory leakStefan Weil2011-02-091-3/+5
| | | | | | | | | | | | Extract from "man realloc": "If realloc() fails the original block is left untouched; it is not freed or moved." Fix a possible memory leak (reported by cppcheck). Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
* linux-user: Protect against allocation failure in load_symbols.Richard Henderson2010-07-291-0/+10
| | | | | | Cc: malc <av1474@comtv.ru> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: malc <av1474@comtv.ru>
* linux-user: Re-use load_elf_image for the main binary.Richard Henderson2010-07-291-277/+103
| | | | | | | | | This requires moving the PT_INTERP extraction and GUEST_BASE handling into load_elf_image. Key this off a non-null pointer argument to receive the interpreter name. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* linux-user: Extract load_elf_image from load_elf_interp.Richard Henderson2010-07-291-174/+167
| | | | | | | | | | | | | | Moving toward a single copy of the elf binary loading code. Fill in the details of the loaded image into a struct image_info. Adjust create_elf_tables to read from such structures instead of from a collection of passed arguments. Don't return error values from load_elf_interp; always exit(-1) with a message to stderr. Collect elf_interpreter handling in load_elf_binary to a common spot. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>