c3-lang/libffi

Log

Author Commit Date CI Message
Francisco Boni 5865450d 2021-03-23T19:50:09 Update ax_cc_maxopt m4 macro (#617) Keeps libffi's specific changes (https://github.com/libffi/libffi/commit/cec3a3a201f17a7f018f25e1a0917bd5206e5a5a#diff-2396a1256ac4b1c6849c931ddb8018bdd984bb2383be21bb819a33b95d8d603f) and updates to the latest ax_cc_maxopt.m4 (http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=commit;h=73ee1b396c21062ee8eeb8721ba5323322110fb5): ax_cc_maxopt.m4: retain setting of CFLAGS by configure AX_CC_MAXOPT checks whether CFLAGS was set by the user; if so, the user’s setting is respected. This behavior is retained, of course. However, AX_CC_MAXOPT was then setting CFLAGS="". This overrode the default setting by configure, which usually includes -g. Hence, if CFLAGS was not set by the user, retain the default setting, to preserve the ability to debug. A typical default setting from configure is "-g -O2". This means that AX_CC_MAXOPT might typically set CFLAGS to "-g -O2 -O3". This is fine, because the later -O3 will override the earlier -O2. (The only assumption is that all compilers that AX_CC_MAXOPT knows behave in this sane way.)
Anthony Green 8f44384d 2021-03-23T14:24:54 Fix formatting
Anthony Green 9d491b5e 2021-03-23T12:26:37 Mention KVX
Anthony Green 205cf01b 2021-03-23T11:31:08 Bug #680. Don't accept floats or small ints as var args. (#628) * Bug #680. Don't accept floats or small ints as var args. * Bug #680. Don't accept floats or small ints as var args. * Bug #680. Don't accept floats or small ints as var args.
Jeremy Huddleston Sequoia d271dbe0 2021-03-20T06:06:28 Add some missing #if conditionals from Apple's code drop (#620) * arm/aarch64: Add FFI_CLOSURES conditionals where appropriate Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com> * aarch64: Don't emit the do_closure label when building without FFI_GO_CLOSURES Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Russell Keith-Magee bae695da 2021-03-06T00:09:17 Add configuration generator for tvOS and watchOS. (#625)
Madhavan T. Venkataraman 9ba55921 2021-03-05T10:07:30 Static tramp v5 (#624) * Static Trampolines Closure Trampoline Security Issue ================================= Currently, the trampoline code used in libffi is not statically defined in a source file (except for MACH). The trampoline is either pre-defined machine code in a data buffer. Or, it is generated at runtime. In order to execute a trampoline, it needs to be placed in a page with executable permissions. Executable data pages are attack surfaces for attackers who may try to inject their own code into the page and contrive to have it executed. The security settings in a system may prevent various tricks used in user land to write code into a page and to have it executed somehow. On such systems, libffi trampolines would not be able to run. Static Trampoline ================= To solve this problem, the trampoline code needs to be defined statically in a source file, compiled and placed in the text segment so it can be mapped and executed naturally without any tricks. However, the trampoline needs to be able to access the closure pointer at runtime. PC-relative data referencing ============================ The solution implemented in this patch set uses PC-relative data references. The trampoline is mapped in a code page. Adjacent to the code page, a data page is mapped that contains the parameters of the trampoline: - the closure pointer - pointer to the ABI handler to jump to The trampoline code uses an offset relative to its current PC to access its data. Some architectures support PC-relative data references in the ISA itself. E.g., X64 supports RIP-relative references. For others, the PC has to somehow be loaded into a general purpose register to do PC-relative data referencing. To do this, we need to define a get_pc() kind of function and call it to load the PC in a desired register. There are two cases: 1. The call instruction pushes the return address on the stack. In this case, get_pc() will extract the return address from the stack and load it in the desired register and return. 2. The call instruction stores the return address in a designated register. In this case, get_pc() will copy the return address to the desired register and return. Either way, the PC next to the call instruction is obtained. Scratch register ================ In order to do its job, the trampoline code would need to use a scratch register. Depending on the ABI, there may not be a register available for scratch. This problem needs to be solved so that all ABIs will work. The trampoline will save two values on the stack: - the closure pointer - the original value of the scratch register This is what the stack will look like: sp before trampoline ------> -------------------- | closure pointer | -------------------- | scratch register | sp after trampoline -------> -------------------- The ABI handler can do the following as needed by the ABI: - the closure pointer can be loaded in a desired register - the scratch register can be restored to its original value - the stack pointer can be restored to its original value (the value when the trampoline was invoked) To do this, I have defined prolog code for each ABI handler. The legacy trampoline jumps to the ABI handler directly. But the static trampoline defined in this patch jumps tp the prolog code which performs the above actions before jumping to the ABI handler. Trampoline Table ================ In order to reduce the trampoline memory footprint, the trampoline code would be defined as a code array in the text segment. This array would be mapped into the address space of the caller. The mapping would, therefore, contain a trampoline table. Adjacent to the trampoline table mapping, there will be a data mapping that contains a parameter table, one parameter block for each trampoline. The parameter block will contain: - a pointer to the closure - a pointer to the ABI handler The static trampoline code would finally look like this: - Make space on the stack for the closure and the scratch register by moving the stack pointer down - Store the original value of the scratch register on the stack - Using PC-relative reference, get the closure pointer - Store the closure pointer on the stack - Using PC-relative reference, get the ABI handler pointer - Jump to the ABI handler Mapping size ============ The size of the code mapping that contains the trampoline table needs to be determined on a per architecture basis. If a particular architecture supports multiple base page sizes, then the largest supported base page size needs to be chosen. E.g., we choose 16K for ARM64. Trampoline allocation and free ============================== Static trampolines are allocated in ffi_closure_alloc() and freed in ffi_closure_free(). Normally, applications use these functions. But there are some cases out there where the user of libffi allocates and manages its own closure memory. In such cases, static trampolines cannot be used. These will fall back to using legacy trampolines. The user has to make sure that the memory is executable. ffi_closure structure ===================== I did not want to make any changes to the size of the closure structure for this feature to guarantee compatibility. But the opaque static trampoline handle needs to be stored in the closure. I have defined it as follows: - char tramp[FFI_TRAMPOLINE_SIZE]; + union { + char tramp[FFI_TRAMPOLINE_SIZE]; + void *ftramp; + }; If static trampolines are used, then tramp[] is not needed to store a dynamic trampoline. That space can be reused to store the handle. Hence, the union. Architecture Support ==================== Support has been added for x64, i386, aarch64 and arm. Support for other architectures can be added very easily in the future. OS Support ========== Support has been added for Linux. Support for other OSes can be added very easily. Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com> * x86: Support for Static Trampolines - Define the arch-specific initialization function ffi_tramp_arch () that returns trampoline size information to common code. - Define the trampoline code mapping and data mapping sizes. - Define the trampoline code table statically. Define two tables, actually, one with CET and one without. - Introduce a tiny prolog for each ABI handling function. The ABI handlers addressed are: - ffi_closure_unix64 - ffi_closure_unix64_sse - ffi_closure_win64 The prolog functions are called: - ffi_closure_unix64_alt - ffi_closure_unix64_sse_alt - ffi_closure_win64_alt The legacy trampoline jumps to the ABI handler. The static trampoline jumps to the prolog function. The prolog function uses the information provided by the static trampoline, sets things up for the ABI handler and then jumps to the ABI handler. - Call ffi_tramp_set_parms () in ffi_prep_closure_loc () to initialize static trampoline parameters. Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com> * i386: Support for Static Trampolines - Define the arch-specific initialization function ffi_tramp_arch () that returns trampoline size information to common code. - Define the trampoline code table statically. Define two tables, actually, one with CET and one without. - Define the trampoline code table statically. - Introduce a tiny prolog for each ABI handling function. The ABI handlers addressed are: - ffi_closure_i386 - ffi_closure_STDCALL - ffi_closure_REGISTER The prolog functions are called: - ffi_closure_i386_alt - ffi_closure_STDCALL_alt - ffi_closure_REGISTER_alt The legacy trampoline jumps to the ABI handler. The static trampoline jumps to the prolog function. The prolog function uses the information provided by the static trampoline, sets things up for the ABI handler and then jumps to the ABI handler. - Call ffi_tramp_set_parms () in ffi_prep_closure_loc () to initialize static trampoline parameters. Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com> * arm64: Support for Static Trampolines - Define the arch-specific initialization function ffi_tramp_arch () that returns trampoline size information to common code. - Define the trampoline code mapping and data mapping sizes. - Define the trampoline code table statically. - Introduce a tiny prolog for each ABI handling function. The ABI handlers addressed are: - ffi_closure_SYSV - ffi_closure_SYSV_V The prolog functions are called: - ffi_closure_SYSV_alt - ffi_closure_SYSV_V_alt The legacy trampoline jumps to the ABI handler. The static trampoline jumps to the prolog function. The prolog function uses the information provided by the static trampoline, sets things up for the ABI handler and then jumps to the ABI handler. - Call ffi_tramp_set_parms () in ffi_prep_closure_loc () to initialize static trampoline parameters. Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com> * arm: Support for Static Trampolines - Define the arch-specific initialization function ffi_tramp_arch () that returns trampoline size information to common code. - Define the trampoline code mapping and data mapping sizes. - Define the trampoline code table statically. - Introduce a tiny prolog for each ABI handling function. The ABI handlers addressed are: - ffi_closure_SYSV - ffi_closure_VFP The prolog functions are called: - ffi_closure_SYSV_alt - ffi_closure_VFP_alt The legacy trampoline jumps to the ABI handler. The static trampoline jumps to the prolog function. The prolog function uses the information provided by the static trampoline, sets things up for the ABI handler and then jumps to the ABI handler. - Call ffi_tramp_set_parms () in ffi_prep_closure_loc () to initialize static trampoline parameters. Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com>
DJ Delorie 5c63b463 2020-12-02T16:14:27 Use memfd_create() (#604) memfd_create creates a file in a memory-only filesystem that may bypass strict security protocols in filesystem-based temporary files.
hjl-tools cb847436 2020-12-02T12:52:12 libffi/x86: Always check __x86_64__ for x32 hosts (#601) (#602) Since for x86_64-*x32 and x86_64-x32-* hosts, -m32 generates ia32 codes. We should always check __x86_64__ for x32 hosts.
Tres Finocchiaro e70bf987 2020-11-24T19:13:57 Properly quote and resolve msvcc.sh params (#596)
Mike Hommey 8cc8f446 2020-11-10T20:41:33 Allow to build with mingw-clang (#579) For some reason, compiling sysv.S with mingw-clang fails with: ``` error: invalid variant 'ffi_closure_inner@8' ``` This can be fixed (worked around?) by quoting the symbol. This works fine with mingw-gcc too.
Mike Hommey d817d0da 2020-11-10T20:39:25 Don't use FFI_TYPE_LONGDOUBLE in the jump table in win64*.S (#580) It may have the same value as FFI_TYPE_DOUBLE per ffi.h, which possibly can make things go wrong with .org/ORG. For instance, GCC complains about "Error: attempt to move .org backwards"
AndreRH 56f7df71 2020-11-10T12:27:59 aarch64: Allow FFI_WIN64 for winelib (#593)
Brandon Bergren 8111cd06 2020-10-27T09:07:38 Add support for powerpc64le-*-freebsd*. (#581) Tests pass with no additional changes needed, tested on hardware.
Ken 484c1a0d 2020-10-27T07:07:07 darwin powerpc: use go closures only if enabled (#583) SHA: 0ff9419f2e75652426469e256cb7d0748064ad58 added go closures for darwin powerpc AIX, but these have not yet been implemented for non-AIX systems use the go closures only if enabled
Jeremy Huddleston Sequoia 032b3cd6 2020-10-27T07:06:21 Support building x86 and arm64 without FFI_GO_CLOSURES (#586) * x86: Support building without FFI_GO_CLOSURES Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com> * arm: Support building without FFI_GO_CLOSURES Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Jeremy Huddleston Sequoia 93cf288d 2020-10-27T07:05:28 testsuite: Add a missing include of <inttypes.h> to fix build failure in test suite (#587) Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
petersn c78fcf88 2020-10-27T07:02:36 Removing unnecessary instruction from ffi_call_unix64 (#588) unix64.S's `ffi_call_unix64` looks like it used to take six parameters, where the sixth said the number of SSE register arguments. However, currently the function only takes five parameters, and the number of SSE register arguments is encoded in the `struct register_args *` passed as the first parameter to `ffi_call_unix64`. This change removes an instruction that tries to use this missing sixth parameter as the number of SSE arguments. This fix should not change any behavior, nor fix any bugs, because a few instructions later the value moved from %r9d into %eax is overwritten by the correct value anyway. This change merely makes the code a tad less confusing, because currently the assembly moves from a register (r9) whose value is never set.
jacobly0 2d86809d 2020-10-27T10:00:03 Fix read-only .eh_frame section test when CFLAGS contains -flto. (#590)
Alan Modra f4435980 2020-10-27T23:36:21 Power10 libffi fixes (#585) Power10 pc-relative code doesn't use or preserve r2 as a TOC pointer. That means calling between pc-relative and TOC using code can't be done without intervening linker stubs, and a call from TOC code to pc-relative code must have a nop after the bl in order to restore r2. Now the PowerPC libffi assembly code doesn't use r2 except for the implicit use when making calls back to C, ffi_closure_helper_LINUX64 and ffi_prep_args64. So changing the assembly to interoperate with pc-relative code without stubs is easily done. * src/powerpc/linux64.S (ffi_call_LINUX64): Don't emit global entry when __PCREL__. Call using @notoc. Add nops. * src/powerpc/linux64_closure.S (ffi_closure_LINUX64): Likewise. (ffi_go_closure_linux64): Likewise.
Tim Gates 407394c0 2020-10-11T15:07:40 docs: fix simple typo, paramters -> parameters (#589) There is a small typo in src/x86/ffi.c. Should read `parameters` rather than `paramters`.
Anthony Green ead65ca8 2020-08-19T08:34:09 Re-enable s390x testing
Niclas Zeising 8276f812 2020-08-07T21:05:23 Upstream local FreeBSD patches (#567) * Add support for FreeBSD mips Add support for FreeBSD mips, this has been a local patch in the FreeBSD ports tree for quite some time. Originally submitted by sson, and committed by sbruno AT FreeBSD DOT org See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191909 for background details. Signed-off-by: Niclas Zeising <zeising@daemonic.se> * Add support for FreeBSD powerpcspe Add support for powerpcspe on FreeBSD This has been in the FreeBSD ports tree for some time. Originally submitted by jhibbits AT FreeBSD DOT org. Signed-off-by: Niclas Zeising <zeising@daemonic.se> * Fix abort() on FreeBSD arm related to __clear_cache() This patch has been in the FreeBSD ports tree for a number of years. Original commit by koobs AT FreeBSD DOT org Original commit message: > devel/libffi: Fix abort() on ARM related to __clear_cache() > > The current FreeBSD/ARM __clear_cache() implementation does nothing #if > __i386__ || __x86_64__ #else abort(); > > cognet@ advises this is an issue for anything !Apple that is using the > libcompiler_rt provided by Clang on ARM, and requires upstreaming. See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=149167 for some background details. Signed-off-by: Niclas Zeising <zeising@daemonic.se>
Anthony Green 392afbaf 2020-08-05T21:38:51 Don't test s390. Travis-ci is broken.
Anthony Green e08eb1ce 2020-08-05T17:59:59 Add support for eabisim back. This was removed upstream.
Tom Tromey 4661ba79 2020-08-04T11:08:19 Merge pull request #576 from froydnj/config-updates update config.{guess,sub}
Nathan Froyd 1a4b786d 2020-08-04T12:17:04 update config.{guess,sub} This change is primarily for aarch64 macOS support, since that configuration is now properly supported upstream.
Tom Tromey 45875da4 2020-07-01T09:32:37 Merge pull request #570 from jwilk-forks/spelling aarch64: Fix typo
Jakub Wilk 8e58f88d 2020-06-30T22:59:28 aarch64: Fix typo
Ma Jun fbd1de85 2020-06-29T08:02:20 Add support for csky
M. Herdiansyah 0027b072 2020-06-11T19:40:24 Makefile: increase compatibility with bmake (#551)
Andre Miras b7af8f47 2020-06-11T14:38:59 Fixes macOS build on Python 3 (#563) The error was: ``` Traceback (most recent call last): File "_generate-darwin-source-and-headers.py", line 209, in <module> generate_source_and_headers(generate_osx=not args.only_ios, generate_ios=not args.only_osx) File "_generate-darwin-source-and-headers.py", line 197, in generate_source_and_headers for header_name, tag_tuples in platform_headers.iteritems(): AttributeError: 'collections.defaultdict' object has no attribute 'iteritems' ```
Kentaro Hayashi 5c45c40c 2020-06-11T21:37:41 Fix Free software foundation address (#564) ref. https://www.fsf.org/about/contact/
Anthony Green 2e90bb55 2020-06-07T14:31:06 Add gcc bug tests back
Yann Sionneau 5e6ca054 2020-05-01T13:59:11 Add support for Kalray KVX architecture (#559)
Andrew Geissler 4f9e20ac 2020-05-01T06:58:30 ffi_powerpc.h: fix build failure with powerpc7 (#561) This is a patch pulled down from the following: https://github.com/buildroot/buildroot/blob/78926f610b1411b03464152472fd430012deb9ac/package/libffi/0004-ffi_powerpc.h-fix-build-failure-with-powerpc7.patch This issue is being hit on OpenBMC code when pulling the latest libffi tag and building on a P8 ppc64le machine. I verified this patch fixes the issue we are seeing. Below is the original commit message: Sicne commit 73dd43afc8a447ba98ea02e9aad4c6898dc77fb0, build on powerpc7 fails on: In file included from ../src/powerpc/ffi.c:33:0: ../src/powerpc/ffi_powerpc.h:61:9: error: '_Float128' is not supported on this target typedef _Float128 float128; ^~~~~~~~~ Fix this build failure by checking for __HAVE_FLOAT128 before using _Float128, as _Float128 is enabled only on specific conditions, see output/host/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/floatn.h: /* Defined to 1 if the current compiler invocation provides a floating-point type with the IEEE 754 binary128 format, and this glibc includes corresponding *f128 interfaces for it. */ #if defined _ARCH_PWR8 && defined __LITTLE_ENDIAN__ && (_CALL_ELF == 2) \ && defined __FLOAT128__ && !defined __NO_LONG_DOUBLE_MATH # define __HAVE_FLOAT128 1 #else # define __HAVE_FLOAT128 0 #endif Fixes: - http://autobuild.buildroot.org/results/5c9dd8fb3b6a128882b6250f197c80232d8a3b53 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Andrew Geissler <geissonator@yahoo.com> Co-authored-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Martin Storsjö 053b04c5 2020-04-26T05:02:14 arm: Fix the clang specific version of the assembly (#556) Also fix the same error in the comment for the non-clang case. That typo there seems to have existed since the code was written in that form, in e7f15f60e86 - and when the clang specific codepath was added in e3d2812ce43, the typo in the comment made it into the actual code.
Martin Storsjö c543849c 2020-04-26T05:01:03 win64_armasm: Fix the spelling of ALIGN (#553)
Martin Storsjö 15d3ea31 2020-04-26T04:59:35 Use __builtin_ffs instead of ffs (#554) USE_BUILTIN_FFS is defined to 1 within __GNUC__, and the __builtin_ffs function is available since GCC 3.x at least, while the ffs function only exists on some OSes. This fixes compilation for non-x86 mingw platforms. For x86, USE_BUILTIN_FFS is explicitly disabled for windows targets - but if USE_BUILTIN_FFS is enabled based on __GNUC__, it should also use the builtin which actually is available correspondingly, not dependent on the target OS.
Martin Storsjö c06468fa 2020-04-26T04:58:33 Fix building for aarch64 windows with mingw toolchains (#555) * aarch64: Check _WIN32 instead of _M_ARM64 for detecting windows This fixes building for aarch64 with mingw toolchains. _M_ARM64 is predefined by MSVC, while mingw compilers predefine __aarch64__. In aarch64 specific code, change checks for _M_ARM64 into checks for _WIN32. In arch independent code, check for (defined(_M_ARM64) || defined(__aarch64__)) && defined(_WIN32) instead of just _M_ARM64. In src/closures.c, coalesce checks like defined(X86_WIN32) || defined(X86_WIN64) || defined(_M_ARM64) into plain defined(_WIN32). Technically, this enables code for ARM32 windows where it wasn't, but as far as I can see it, those codepaths should be fine for that architecture variant as well. * aarch64: Only use armasm source when building with MSVC When building for windows/arm64 with clang, the normal gas style .S source works fine. sysv.S and win64_armasm.S seem to be functionally equivalent, with only differences being due to assembler syntax.
Fangrui Song 8c50837f 2020-03-10T04:36:09 Improve read-write .eh_frame check (#546) llvm-objdump -h does not print BFD SEC_* constants like "READONLY", so the check will consider .eh_frame writable. clang 11 (since https://reviews.llvm.org/D73999) will error for mismatching section flags. Use readelf -S and check "WA" instead.
Moxie Bot 4a6414f2 2020-03-09T21:10:53 Mention ARM Pointer Authentication
Moxie Bot 909b37ff 2020-03-09T21:10:33 Test on aarch64 Linux with clang
Ole André Vadla Ravnås 4c7bde32 2020-03-10T02:05:42 Port to iOS/arm64e (#548)
Anthony Green 211e929d 2020-03-09T12:39:22 Try to fix RLGL_KEY nonsense (#547) * Try to fix RLGL_KEY nonsense * Hard code policy bound API key Co-authored-by: Anthony Green <green@moxielogic.com>
Moxie Bot 8eb2d2b0 2020-02-24T10:29:20 Revamp PA_LINUX and PA_HPUX target closures to use function descriptors. 2020-02-23 John David Anglin <danglin@gcc.gnu.org> * include/ffi.h.in (FFI_CLOSURE_PTR, FFI_RESTORE_PTR): Define. * src/closures.c (ffi_closure_alloc): Convert closure pointer return by malloc to function pointer. (ffi_closure_free): Convert function pointer back to malloc pointer. * src/pa/ffi.c (ffi_closure_inner_pa32): Use union to double word align return address on stack. Adjust statements referencing return address. Convert closure argument from function pointer to standard closure pointer. (ffi_prep_closure_loc): Likewise convert closure argument back to closure pointer. Remove assembler trampolines. Setup simulated function descriptor as on ia64. src/pa/ffitarget.h (FFI_TRAMPOLINE_SIZE): Reduce to 12. src/pa/hpux32.S (ffi_closure_pa32): Retrieve closure pointer and real gp from fake gp value in register %r19. src/pa/linux.S (ffi_closure_pa32): Likewise.
hjl-tools be815544 2020-02-23T07:45:42 Update the ABI version to LIBFFI_BASE_8.0 (#544) Since x86 and x86-64 FFI_TRAMPOLINE_SIZE have been increased, we must bump the ABI version. This fixes: https://github.com/libffi/libffi/issues/543
hjl-tools d9abffea 2020-02-22T06:32:22 x86: Fix ffi_prep_closure_loc (#542) Since FFI_TRAMPOLINE_SIZE is increased by 4 bytes to add ENDBR32, adjust jump displacement by 4 bytes.
Moxie Bot 624c7a35 2020-02-21T22:13:14 Merge branch 'master' of github.com:/libffi/libffi
Moxie Bot 4c775d7c 2020-02-21T22:12:34 Update for pending 3.4 release.
hjl-tools 78556561 2020-02-21T19:08:06 x86: Add indirect branch tracking support (#540) Intel Control-flow Enforcement Technology (CET): https://software.intel.com/en-us/articles/intel-sdm contains shadow stack (SHSTK) and indirect branch tracking (IBT). When CET is enabled, ELF object files must be marked with .note.gnu.property section. When Intel CET is enabled, include <cet.h> in assembly codes to mark Intel CET support. Also when IBT is enabled, all indirect branch targets must start with ENDBR instruction and notrack prefix can be used to disable IBT on indirect branch. <cet.h> defines _CET_ENDBR which can be used in assembly codes for ENDBR instruction. If <cet.h> isn't included, define _CET_ENDBR as empty so that _CET_ENDBR can be used in assembly codes. Trampoline must be enlarged to add ENDBR instruction unconditionally, which is NOP on non-CET processors. This is required regardless if libffi is enabled with CET since libffi.so will be marked in legacy bitmap, but trampoline won't. Update library version for larger FFI_TRAMPOLINE_SIZE. This fixed: https://github.com/libffi/libffi/issues/474 Tested with $ CC="gcc -Wl,-z,cet-report=error -fcf-protection" CXX="g++ -Wl,-z,cet-report=error -fcf-protection" .../configure on Linux CET machines in i686, x32 and x86-64 modes.
Samuel Holland 4d6d2866 2020-02-21T21:06:15 Update powerpc sysv assembly for ffi_powerpc.h changes (#541) Some of the flag bits were moved when adding powerpc64 vector support. Fixes #536
Anthony Green b844a9c7 2020-01-10T10:22:10 Update copyright year.
Anthony Green 81b5491a 2020-01-05T21:37:05 Fix script
Anthony Green 1e08a455 2020-01-05T21:18:23 Use rlgl API key on login
Khem Raj e50b9ef8 2019-12-07T02:34:14 powerpc64: Use memcpy to help platforms with no __int128. (#534) Signed-off-by: Khem Raj <raj.khem@gmail.com>
Anthony Green f9da75e1 2019-11-30T07:37:19 Remove 32-bit x86 file references to fix macosx builds
Carl Hurd 76c0cfea 2019-11-29T14:46:11 Fixed missed #ifndef for __mips_soft_float (#442) Thank you!
Anthony Green 98da2560 2019-11-29T14:29:51 Clean up macosx builds
Anthony Green 6663047f 2019-11-29T07:00:35 Address platforms with no __int128.
Anthony Green 0069526c 2019-11-28T18:58:40 Make build errors easier to debug
Anthony Green 43887a91 2019-11-28T17:44:51 Add powerpc-eabi
Anthony Green 29297445 2019-11-28T17:31:44 Test on powerpc-eabisim
Sergei Trofimovich 01a75ed7 2019-11-28T12:42:41 powerpc: fix build failure on power7 and older (#532) Build failure looks as: ``` libtool: compile: powerpc-unknown-linux-gnu-gcc \ -O2 -mcpu=powerpc -mtune=powerpc -pipe ... -c src/powerpc/ffi.c ... In file included from src/powerpc/ffi.c:33: src/powerpc/ffi_powerpc.h:65:9: error: '__int128' is not supported on this target 65 | typedef __int128 float128; | ^~~~~~~~ ``` The fix avoids using __int128 in favour of aligned char[16]. Closes: https://github.com/libffi/libffi/issues/531 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Anthony Green 1ec01ea8 2019-11-24T22:47:48 Run aarch64-linux-gnu tests on travi-ci directly
Anthony Green 66022e52 2019-11-24T16:52:14 Fixes for ppc64le and s390x travis testing
Anthony Green 932e5bb6 2019-11-24T16:26:14 Force the use of docker
Anthony Green 803db14c 2019-11-24T16:10:22 Merge branch 'master' of github.com:libffi/libffi
Anthony Green 86be66c8 2019-11-24T16:09:44 Try travis-ci's new ppc64le and s390x support
Panayotis fb914c36 2019-11-24T18:25:13 disable obsolete 32-bit targets in macOS (#511)
Anthony Green fd99c95f 2019-11-24T11:11:25 Minor clean-up
Anthony Green 5dcb741f 2019-11-23T10:24:58 Move nested_struct3 test to closures directory
Anthony Green 1aca3330 2019-11-23T09:42:04 Add missing closing brace
Anthony Green d996cb28 2019-11-23T09:00:14 Version 3.3
Anthony Green c72b82f4 2019-11-23T08:48:53 Remove junk file from dist
Anthony Green 642d40ee 2019-11-23T07:49:58 Account for moved test files
Anthony Green 049da08a 2019-11-23T07:44:26 Add dejagnu directives accidentally removed
Anthony Green 36730f5d 2019-11-22T19:49:38 Move closure test to closure directory
Anthony Green c88c0e92 2019-11-22T19:27:34 More more closure tests to the closure test directory
Anthony Green a37cc175 2019-11-22T18:55:36 Merge branch 'master' of github.com:libffi/libffi
Anthony Green 332a539e 2019-11-22T18:54:30 Move closure tests so we can easily XFAIL them for some targets
Anthony Green 1761a106 2019-11-22T18:53:09 Remove gccbug detection. GCC is good now.
Michael Haubenwallner 247a5e78 2019-11-22T20:17:58 Capture x86-windows host like x86_64-windows (#529)
Anthony Green 8e3935fa 2019-11-22T12:42:26 Manual clean-ups, and include the PDF in the source distribution.
Anthony Green d01088a5 2019-11-21T05:36:06 Mention more major port contributors
Anthony Green 970b7fce 2019-11-21T05:04:54 Update autoconf-archive m4 macros
Anthony Green 34a3a661 2019-11-21T04:59:39 Fix formatting of README.
Anthony Green 91a7fbe9 2019-11-20T07:16:41 Fix or1k lack-of-g++ checking in testsuite
Anthony Green 31543c79 2019-11-20T06:15:55 Add work-around for users who manage their own closure memory As suggested by DJ
Anthony Green bd3a4687 2019-11-19T17:14:23 No C++ for or1k-unknown-elf
Anthony Green d6e4f96b 2019-11-19T13:36:49 No C++ for or1k
Anthony Green 49701868 2019-11-19T10:07:16 Disable type warnings for or1k.
Anthony Green 262cf74f 2019-11-19T10:06:57 No c++ for or1k-elf
Anthony Green 54fc80df 2019-11-18T15:20:00 Fake TRAVIS_BUILD_DIR
Anthony Green 6f734f8a 2019-11-18T15:13:16 Adapt for new old ChangeLog file
Anthony Green 27d31130 2019-11-18T15:06:51 Fix DEJAGNU variable
Anthony Green da135881 2019-11-18T14:54:14 Set vars
Anthony Green 9a394c24 2019-11-18T14:45:29 Remove verbosity
Anthony Green 14bfbec0 2019-11-18T14:40:30 Pull before running
Anthony Green dfa60e5e 2019-11-18T14:02:33 Fix cross builds for or1k
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