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2025-01-02Update copyright years.Jakub Jelinek1-1/+1
2024-02-12x86, libgcc: Implement ia32 basic heap trampoline [PR113855].Iain Sandoe1-1/+2
The initial heap trampoline implementation was targeting 64b platforms. As the PR demonstrates this creates an issue where it is expected that the same symbols are exported for 32 and 64b. Rather than conditionalize the exports and code-gen on x86_64, this patch provides a basic implementation of the IA32 trampoline. This also avoids potential user confusion, when a 32b target has 64b multilibs, and vice versa; which is the case for Darwin. PR target/113855 gcc/ChangeLog: * config/i386/darwin.h (DARWIN_HEAP_T_LIB): Moved to be available to all sub-targets. * config/i386/darwin32-biarch.h (DARWIN_HEAP_T_LIB): Delete. * config/i386/darwin64-biarch.h (DARWIN_HEAP_T_LIB): Delete. libgcc/ChangeLog: * config.host: Add trampoline support to x?86-linux. * config/i386/heap-trampoline.c (trampoline_insns): Provide a variant for IA32. (union ix86_trampoline): Likewise. (__gcc_nested_func_ptr_created): Implement a basic trampoline for IA32.
2024-01-30libgcc: Make heap trampoline support dynamic [PR113403].Iain Sandoe1-0/+2
In order to handle system security constraints during GCC build and test and that most platform versions cannot link to libgcc_eh since the unwinder there is incompatible with the system one. 1. We make the support functions weak definitions. 2. We include them as a CRT for platform conditions that do not allow libgcc_eh. 3. We ensure that the weak symbols are exported from DSOs (which includes exes on Darwin) so that the dynamic linker will pick one instance (which avoids duplication of trampoline caches). PR libgcc/113403 gcc/ChangeLog: * config/darwin.h (DARWIN_SHARED_WEAK_ADDS, DARWIN_WEAK_CRTS): New. (REAL_LIBGCC_SPEC): Move weak CRT handling to separate spec. * config/i386/darwin.h (DARWIN_HEAP_T_LIB): New. * config/i386/darwin32-biarch.h (DARWIN_HEAP_T_LIB): New. * config/i386/darwin64-biarch.h (DARWIN_HEAP_T_LIB): New. * config/rs6000/darwin.h (DARWIN_HEAP_T_LIB): New. libgcc/ChangeLog: * config.host: Build libheap_t.a for i686/x86_64 Darwin. * config/aarch64/heap-trampoline.c (HEAP_T_ATTR): New. (allocate_tramp_ctrl): Allow a target to build this as a weak def. (__gcc_nested_func_ptr_created): Likewise. * config/i386/heap-trampoline.c (HEAP_T_ATTR): New. (allocate_tramp_ctrl): Allow a target to build this as a weak def. (__gcc_nested_func_ptr_created): Likewise. * config/t-darwin: Build libheap_t.a (a CRT with heap trampoline support).
2024-01-03Update copyright years.Jakub Jelinek1-1/+1
2023-10-22target: Support heap-based trampolinesAndrew Burgess1-0/+6
Enable -ftrampoline-impl=heap by default if we are on macOS 11 or later. Co-Authored-By: Maxim Blinov <maxim.blinov@embecosm.com> Co-Authored-By: Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> Co-Authored-By: Iain Sandoe <iain@sandoe.co.uk> gcc/ChangeLog: * config.gcc: Default to heap trampolines on macOS 11 and above. * config/i386/darwin.h: Define X86_CUSTOM_FUNCTION_TEST. * config/i386/i386.h: Define X86_CUSTOM_FUNCTION_TEST. * config/i386/i386.cc: Use X86_CUSTOM_FUNCTION_TEST.
2023-01-18Don't add crtfastmath.o for -shared.liuhongt1-1/+1
Patches [1] and [2] fixed PR55522 for x86-linux but left all other x86 targets unfixed (x86-cygwin, x86-darwin and x86-mingw32). This patch applies a similar change to other specs using crtfastmath.o. [1] https://gcc.gnu.org/pipermail/gcc-patches/2022-December/608528.html [2] https://gcc.gnu.org/pipermail/gcc-patches/2022-December/608529.html gcc/ChangeLog: PR target/55522 * config/i386/cygwin.h (ENDFILE_SPEC): Link crtfastmath.o whenever -mdaz-ftz is specified. Don't link crtfastmath.o when -share or -mno-daz-ftz is specified. * config/i386/darwin.h (ENDFILE_SPEC): Ditto. * config/i386/mingw32.h (ENDFILE_SPEC): Ditto.
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-09-05rename DBX_REGISTER_NUMBER to DEBUGGER_REGNOMartin Liska1-5/+5
gcc/ada/ChangeLog: * sigtramp-vxworks-target.h: Rename DBX_REGISTER_NUMBER to DEBUGGER_REGNO. gcc/ChangeLog: * config/aarch64/aarch64-protos.h (aarch64_dbx_regno): Rename DBX_REGISTER_NUMBER to DEBUGGER_REGNO. (aarch64_debugger_regno): Likewise. * config/aarch64/aarch64.cc (aarch64_dbx_regno): Likewise. (aarch64_debugger_regno): Likewise. * config/aarch64/aarch64.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (DWARF_FRAME_REGNUM): Likewise. * config/alpha/alpha.h (DWARF_FRAME_REGNUM): Likewise. * config/arc/arc.cc (arc_init_reg_tables): Likewise. * config/arc/arc.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/arm/arm-protos.h (arm_dbx_regno): Likewise. (arm_debugger_regno): Likewise. * config/arm/arm.cc (arm_dbx_regno): Likewise. (arm_debugger_regno): Likewise. * config/arm/arm.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/bfin/bfin.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/c6x/c6x.cc: Likewise. * config/c6x/c6x.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/cris/cris.h (enum reg_class): Likewise. (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/csky/csky.cc (enum reg_class): Likewise. * config/csky/csky.h (DWARF_FRAME_REGNUM): Likewise. (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/frv/frv.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/gcn/gcn-hsa.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/gcn/gcn.cc (print_operand): Likewise. * config/i386/bsd.h (ASM_QUAD): Likewise. * config/i386/cygming.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (DWARF_FRAME_REGNUM): Likewise. * config/i386/darwin.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/djgpp.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/dragonfly.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/freebsd.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/gas.h: Likewise. * config/i386/gnu-user.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/i386.cc (enum reg_class): Likewise. * config/i386/i386.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/i386elf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/iamcu.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/lynx.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/netbsd-elf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/nto.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/openbsdelf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/sysv4.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/vxworks.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/i386/x86-64.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/ia64/ia64-protos.h (ia64_dbx_regno): Likewise. (ia64_debugger_regno): Likewise. * config/ia64/ia64.cc (ia64_output_function_prologue): Likewise. (ia64_dbx_regno): Likewise. (ia64_debugger_regno): Likewise. (process_cfa_adjust_cfa): Likewise. (process_cfa_register): Likewise. (ia64_asm_unwind_emit): Likewise. * config/ia64/ia64.h: Likewise. * config/ia64/sysv4.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/lm32/lm32.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/m32c/m32c.cc (m32c_eh_return_stackadj_rtx): Likewise. * config/m32c/m32c.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/m68k/linux.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/m68k/m68k.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (__transfer_from_trampoline): Likewise. * config/m68k/m68kelf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise. (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/microblaze/microblaze.cc (microblaze_option_override): Likewise. * config/microblaze/microblaze.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (GP_DBX_FIRST): Likewise. (GP_DEBUGGER_FIRST): Likewise. * config/mips/vxworks.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/mmix/mmix-protos.h (mmix_dbx_regno): Likewise. (mmix_debugger_regno): Likewise. * config/mmix/mmix.cc (mmix_dbx_regno): Likewise. (mmix_debugger_regno): Likewise. * config/mmix/mmix.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/nds32/nds32-protos.h (nds32_dbx_regno): Likewise. (nds32_debugger_regno): Likewise. * config/nds32/nds32.cc (nds32_dbx_regno): Likewise. (nds32_debugger_regno): Likewise. (nds32_use_blocks_for_constant_p): Likewise. * config/nds32/nds32.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/nvptx/nvptx.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/or1k/or1k.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/pa/pa32-regs.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/pa/pa64-regs.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/rs6000/rs6000-protos.h (rs6000_dbx_regno): Likewise. (rs6000_debugger_regno): Likewise. * config/rs6000/rs6000.cc (rs6000_dbx_regno): Likewise. (rs6000_debugger_regno): Likewise. * config/rs6000/rs6000.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (DWARF2_FRAME_REG_OUT): Likewise. * config/s390/s390.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/sh/elf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/sh/linux.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/sh/sh.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (SH_DBX_REGISTER_NUMBER): Likewise. (SH_DEBUGGER_REGNO): Likewise. * config/visium/visium.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/xtensa/elf.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/xtensa/linux.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/xtensa/uclinux.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * config/xtensa/xtensa-protos.h (xtensa_dbx_regno): Likewise. (xtensa_debugger_regno): Likewise. * config/xtensa/xtensa.cc (xtensa_dbx_regno): Likewise. (xtensa_debugger_regno): Likewise. * config/xtensa/xtensa.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. * defaults.h (DBX_REGISTER_NUMBER): Likewise. (DEBUGGER_REGNO): Likewise. (DWARF_FRAME_REGNUM): Likewise. * doc/tm.texi: Likewise. * doc/tm.texi.in: Likewise. * dwarf2out.cc (dbx_reg_number): Likewise. (debugger_reg_number): Likewise. (reg_loc_descriptor): Likewise. (multiple_reg_loc_descriptor): Likewise. (mem_loc_descriptor): Likewise. * except.cc: Likewise.
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-11-19Darwin: Rework handling for unwinder code in libgcc_s and specs [PR80556].Iain Sandoe1-31/+0
This addresses a long-standing problem where a work-around for an unwinder issue (also a regression) regresses other functionality. The patch replaces several work-arounds with a fix for PR80556 and a work-around for PR88590. * The fix for PR80556 requires a bump to the SO name for libgcc_s, since we need to remove the unwinder symbols from it. This would trigger PR88590 hence the work-around for that. * We weaken the symbols for emulated TLS support so that it is possible for a DSO linked with static-libgcc to interoperate with a DSO linked with libgcc_s. Likewise main exes. * We remove all the gcc-4.2.1 era stubs machinery and workarounds. * libgcc is always now linked ahead of libc, which avoids fails where the libc (libSystem) builtins implementations are not up to date. * The unwinder now always comes from the system - for Darwin9 from /usr/lib/libgcc_s.1.dylib - for Darwin10 from /usr/lib/libSystem.dylib - for Darwin11+ from /usr/lib/system/libunwind.dylib. We still insert a shim on Darwin10 to fix an omitted unwind function, but the underlying unwinder remains the system one. * The work-around for PR88590 has two parts (1) we always link libgcc from its convenience lib on affected system versions (avoiding the need to find the DSO path); (2) we add and export the emutls functions from DSOs - this makes a relatively small (20k) addition to a DSO. These can be backed out when a proper fix for PR88590 is committed. For distributions that wish to install a libgcc_s.1.dylib to satisfy linkage from exes that linked against the stubs can use a reexported libgcc_s.1.1 (since that contains all the symbols that were previously exported via the stubs). Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> gcc/ChangeLog: PR target/80556 * config/darwin-driver.c (darwin_driver_init): Handle exported symbols and symbol lists (suppress automatic export of the TLS symbols). * config/darwin.c (darwin_rename_builtins): Remove workaround. * config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): Likewise. (REAL_LIBGCC_SPEC): Handle revised library uses. * config/darwin.opt (nodefaultexport): New. * config/i386/darwin.h (PR80556_WORKAROUND): Remove. * config/i386/darwin32-biarch.h (PR80556_WORKAROUND): Likewise. * config/i386/darwin64-biarch.h (PR80556_WORKAROUND): Likewise. libgcc/ChangeLog: * config.host: Add weak emutls crt to the extra_parts. * config/i386/darwin-lib.h (DECLARE_LIBRARY_RENAMES): Remove workaround. * config/libgcc-libsystem.ver: Add exclude list for the system- provided unwinder. * config/t-slibgcc-darwin: Bump SO version, remove stubs code. * config/i386/libgcc-darwin.10.4.ver: Removed. * config/i386/libgcc-darwin.10.5.ver: Removed. * config/rs6000/libgcc-darwin.10.4.ver: Removed. * config/rs6000/libgcc-darwin.10.5.ver: Removed. * config/t-darwin-noeh: New file. gcc/testsuite/ChangeLog: * gcc.dg/torture/fp-int-convert-timode-3.c: Remove XFAIL. * gcc.dg/torture/fp-int-convert-timode-4.c: Likewise.
2021-10-15Darwin: Revise handling of some driver opts.Iain Sandoe1-4/+5
Darwin has a user convenience feature where some linker options are exposed at the driver level (so one can type '-all_load' instead of '-Wl,-all_load' or '-Xlinker -all_load'). We retain this feature, but now these options are all marked as 'Driver' and we process them as early as possible so that they get allocated to the right toolchain command. There are a couple of special cases where these driver opts are used multiple times, or to control operations on more than one command (e.g. dynamiclib). These are handled specially and we then add %<xxxx specs for the commands that _do not_ need them. NOTE: the ordering of 'shared' and 'dynamiclib' is significant, hence they are placed out of alphabetical order at the start. Likewise, we keep a couple of cases where a negative option originally appeared after the positive alternate, potentially overriding it. When we report an error with %e, it seems necessary to strip the option before doing so, otherwise it survives to the cc1 command line (%e does not appear to abort the program before this). Right now there is no mechanism to split up the 'variable portion' (%*) of the matched spec string, so where we have some driver specs that take 2 or 3 arguments, these cannot be processed here, but are deferred until the LINK_SPEC, where they are copied verbatim. We have a 'safe' version of the macOS version string, that has been sanity- checked and truncated to minor version. If the 'tiny' (3rd) portion of the value is not significant, it is better to use the safe one in version-compare(). Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> gcc/ChangeLog: * config/darwin-driver.c (darwin_driver_init): Revise comments, handle filelist and framework options in specs instead of code. * config/darwin.h (SUBTARGET_DRIVER_SELF_SPECS): Update to handle link specs that are really driver ones. (DARWIN_CC1_SPEC): Likewise. (CPP_SPEC): Likewise. (SYSROOT_SPEC): Append space. (LINK_SYSROOT_SPEC): Remove most driver link specs. (STANDARD_STARTFILE_PREFIX_2): Update link-related specs. (STARTFILE_SPEC): Likewise. (ASM_MMACOSX_VERSION_MIN_SPEC): Fix line wrap. (ASM_SPEC): Update driver-related specs. (ASM_FINAL_SPEC): Likewise. * config/darwin.opt: Remove now unused option aliases. * config/i386/darwin.h (EXTRA_ASM_OPTS): Ensure space after opt. (ASM_SPEC): Update driver-related specs.
2021-09-13Remove DARWIN_PREFER_DWARF and dead codeRichard Biener1-11/+0
This removes the always defined DARWIN_PREFER_DWARF and the code guarded by it being not defined, removing the possibility to default some i386 darwin configurations to STABS when it would not be defined. 2021-09-10 Richard Biener <rguenther@suse.de> * config/darwin.h (DARWIN_PREFER_DWARF): Do not define. * config/i386/darwin.h (PREFERRED_DEBUGGING_TYPE): Do not change based on DARWIN_PREFER_DWARF not being defined.
2021-08-29Darwin, X86 : Implement __cache_clear.Iain Sandoe1-0/+5
We had a NOP cache clear, but there is a suitable mechanism provided by a system call. This connects it up. Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> gcc/ChangeLog: * config/i386/darwin.h (CLEAR_INSN_CACHE): New.
2021-08-17Darwin, X86, config: Adjust 'as' command lines [PR100340].Iain Sandoe1-1/+9
Versions of the assembler using clang from XCode 12.5/12.5.1 have a bug which produces different code layout between debug and non-debug input, leading to a compare fail for default configure parameters. This is a workaround fix to disable the optimisation that is responsible for the bug. Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> PR target/100340 - Bootstrap fails with Clang 12.0.5 (XCode 12.5) PR target/100340 gcc/ChangeLog: * config.in: Regenerate. * config/i386/darwin.h (EXTRA_ASM_OPTS): New (ASM_SPEC): Pass options to disable branch shortening where needed. * configure: Regenerate. * configure.ac: Detect versions of 'as' that support the optimisation which has the bug.
2021-07-04Darwin, config : Adjust X86 biarch definitions ordering [PR100269].Iain Sandoe1-12/+10
This reorganises the biarch definitions to cater for the macro changes and removals at r12-36. Signed-off-by: Iain Sandoe <iain@sandoe.co.uk> PR target/100269 - [12 Regression] i686 biarch compiler fails for Darwin after r12-36. PR target/100269 gcc/ChangeLog: PR target/100269 * config.gcc: Ensure that Darwin biarch definitions are added before i386.h. * config/i386/darwin.h (TARGET_64BIT): Remove. (PR80556_WORKAROUND): New. (REAL_LIBGCC_SPEC): Amend to use PR80556_WORKAROUND. (DARWIN_SUBARCH_SPEC): New. * config/i386/darwin32-biarch.h (TARGET_64BIT_DEFAULT, TARGET_BI_ARCH, PR80556_WORKAROUND): New. (REAL_LIBGCC_SPEC): Remove. * config/i386/darwin64-biarch.h (TARGET_64BIT_DEFAULT, TARGET_BI_ARCH, PR80556_WORKAROUND): New. (REAL_LIBGCC_SPEC): Remove.
2021-05-20dwarf: new dwarf_debuginfo_p predicateIndu Bhagat1-2/+2
This patch introduces a dwarf_debuginfo_p predicate that abstracts and replaces complex checks on write_symbols. gcc/c-family/ChangeLog: * c-lex.c (init_c_lex): Use dwarf_debuginfo_p. gcc/ChangeLog: * config/c6x/c6x.c (c6x_output_file_unwind): Use dwarf_debuginfo_p. * config/darwin.c (darwin_override_options): Likewise. * config/i386/cygming.h (DBX_REGISTER_NUMBER): Likewise. * config/i386/darwin.h (DBX_REGISTER_NUMBER): Likewise. (DWARF2_FRAME_REG_OUT): Likewise. * config/mips/mips.c (mips_output_filename): Likewise. * config/rs6000/rs6000.c (rs6000_xcoff_declare_function_name): Likewise. (rs6000_dbx_register_number): Likewise. * dbxout.c: Include flags.h. * dwarf2cfi.c (cfi_label_required_p): Likewise. (dwarf2out_do_frame): Likewise. * except.c: Include flags.h. * final.c (dwarf2_debug_info_emitted_p): Likewise. (final_scan_insn_1): Likewise. * flags.h (dwarf_debuginfo_p): New function declaration. * opts.c (dwarf_debuginfo_p): New function definition. * targhooks.c (default_debug_unwind_info): Use dwarf_debuginfo_p. * toplev.c (process_options): Likewise.
2021-04-29add ASM_OUTPUT_MAX_SKIP_ALIGN to i386.hAlexandre Oliva1-12/+0
Several i386 align tests expect p2align to be used, but not all configurations define ASM_OUTPUT_MAX_SKIP_ALIGN, even when HAVE_GAS_MAX_SKIP_P2ALIGN. i386.h had an equivalent ASM_OUTPUT_MAX_SKIP_PAD. I've renamed it and its uses to the documented _ALIGN spelling, and dropped all redundant defines elsewhere in gcc/config/i386/. for gcc/ChangeLog * config/i386/i386.h (ASM_OUTPUT_MAX_SKIP_PAD): Rename to... (ASM_OUTPUT_MAX_SKIP_ALIGN): ... this. Enclose in do/while(0). * config/i386/i386.c: Adjust. * config/i386/i386.md: Adjust. * config/i386/darwin.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Drop. * config/i386/dragonfly.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/freebsd.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/gas.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/gnu-user.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/iamcu.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/lynx.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/netbsd-elf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/openbsdelf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. * config/i386/x86-64.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Likewise. (ASM_OUTPUT_MAX_SKIP_PAD): Likewise.
2021-04-21Darwin, X86 : Fix bootstrap break from flags changes.Iain Sandoe1-5/+0
The changes from r12-36-g1751bec027f030515889fcf4baa9c91501aafc85 did not remove the uses of TARGET_ISA_* from i386/darwin.h. Fixed thus. gcc/ChangeLog: * config/i386/darwin.h (TARGET_64BIT): Remove definition based on TARGET_ISA_64BIT. (TARGET_64BIT_P): Remove definition based on TARGET_ISA_64BIT_P().
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-05-01Darwin: Fix bootstrap break from libsanitizer changes.Iain Sandoe1-4/+3
The recent libsanitizer change seems to have had a corrupt chunk, that caused it to apply a change part way through the SUBTARGET_INIT_BUILTINS macro, leading to a bootstrap fail in stage1. gcc/ChangeLog: 2020-05-01 Iain Sandoe <iain@sandoe.co.uk> * config/i386/darwin.h: Repair SUBTARGET_INIT_BUILTINS. Override SUBTARGET_SHADOW_OFFSET macro.
2020-05-01gcc: Enable bits for sanitizer support on FreeBSD x86_64Andreas Tobler1-0/+6
This patch add the necessary bits to suport libasan on FreeBSD x86_64. gcc * config/i386/i386.h: Define a new macro: SUBTARGET_SHADOW_OFFSET. * config/i386/i386.c (ix86_asan_shadow_offset): Use this macro. * config/i386/darwin.h: Override the SUBTARGET_SHADOW_OFFSET macro. * config/i386/freebsd.h: Likewise. * config/freebsd.h (LIBASAN_EARLY_SPEC): Define. LIBTSAN_EARLY_SPEC): Likewise. (LIBLSAN_EARLY_SPEC): Likewise. libsanitizer: * configure.tgt: Add x86_64- and i?86-*-freebsd* targets.
2020-03-22Darwin: Fix i686 bootstrap when the assembler supports GOTOFF in data.Iain Sandoe1-0/+10
When we use an assembler that supports " .long XX@GOTOFF", the current combination of configuration parameters and conditional compilation (when building an i686-darwin compiler with mdynamic-no-pic) assume that it's OK to put jump tables in the .const section. However, when we encounter a weak function with a jump table, this produces relocations that directly access the weak symbol section from the .const section - which is deemed illegal by the linker (since that would mean that the weak symbol could not be replaced). Arguably, this is a limitation (maybe even a bug) in the linker - but it seems that we'd have to change the ABI to fix it - since it would require some annotation (maybe just using a special section for the jump tables) to tell the linker that this specific circumstance is OK because the direct access to the weak symbol can only occur from that symbol itself. The fix is to force jump tables into the text section for all X86 Darwin versions (PIC code already had this change). gcc/ChangeLog: 2020-03-22 Iain Sandoe <iain@sandoe.co.uk> * config/i386/darwin.h (JUMP_TABLES_IN_TEXT_SECTION): Remove references to Darwin. * config/i386/i386.h (JUMP_TABLES_IN_TEXT_SECTION): Define this unconditionally and comment on why.
2020-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r279813
2019-11-09[Darwin, machopic 10/n] Rework X86 mcount stub code.Iain Sandoe1-2/+2
When a stub is used to call the mcount function, the code is already marking it as used unconditionally; This is the only use of the so- called validation outside darwin.{h,c}. This moves the 'validation' into darwin.c which is a step towards making validation routine local. gcc/ 2019-11-09 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c (machopic_mcount_stub_name): Validate the symbol stub name when it is created. * config/i386/darwin.h (FUNCTION_PROFILER): Remove the symbol stub validation. From-SVN: r278000
2019-10-07[Darwin, machopic 0/n] Initial tidy of Mach-O symbol handling.Iain Sandoe1-4/+2
We want to improve the detection and caching of symbol-properties so that (a) we can make the compiler's output match the platform norms (b) we can improve efficiency by checking flags instead of inspecting strings. (c) The fix for PR71767 was a largish hammer and we want to reduce the number of symbols that are made linker- visible. This first patch is largely typographical changes with no functional difference intended: - Tries to ensure that there's no overlap between the symbols used in the Mach-O case and those declared in the i386 or rs6000 port trees. - Some improvement to comments. - Makes the naming of the symbol flags consistent with other uses. - Provides a predicate macro for each use. gcc/ChangeLog: 2019-10-07 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c (machopic_symbol_defined_p): Use symbol flag predicates instead of accessing bits directly. (machopic_indirect_call_target): Likewise. (machopic_output_indirection): Likewise. (darwin_encode_section_info): Improve description. Use renamed symbol flags. Use predicate macros for variables and functions. * config/darwin.h: Rename MACHO_SYMBOL_VARIABLE to MACHO_SYMBOL_FLAG_VARIABLE. Rename MACHO_SYMBOL_DEFINED to MACHO_SYMBOL_FLAG_DEFINED. Rename MACHO_SYMBOL_STATIC to MACHO_SYMBOL_FLAG_STATIC. (MACHO_SYMBOL_VARIABLE_P): New. (MACHO_SYMBOL_DEFINED_P):New. (MACHO_SYMBOL_STATIC_P): New. * config/i386/darwin.h (MACHO_SYMBOL_FLAG_VARIABLE): Delete. (SYMBOL_FLAG_SUBT_DEP): New. * config/rs6000/darwin.h (SYMBOL_FLAG_SUBT_DEP): New. From-SVN: r276674
2019-08-13[Darwin] There is no need to distinguish PIC/non-PIC symbol stubs.Iain Sandoe1-3/+3
So we can use a single flag for both, and rename this now, before a confusing name gets into the wild. gcc/ 2019-08-13 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c (machopic_indirect_call_target): Rename symbol stub flag. (darwin_override_options): Likewise. * config/darwin.h: Likewise. * config/darwin.opt: Likewise. * config/i386/i386.c (output_pic_addr_const): Likewise. * config/rs6000/darwin.h: Likewise. * config/rs6000/rs6000.c (rs6000_call_darwin_1): Likewise. * config/i386/darwin.h (TARGET_MACHO_PICSYM_STUBS): Rename to ... ... this TARGET_MACHO_SYMBOL_STUBS. (FUNCTION_PROFILER):Likewise. * config/i386/i386.h: Likewise. gcc/testsuite/ 2019-08-13 Iain Sandoe <iain@sandoe.co.uk> * obj-c++.dg/stubify-1.mm: Rename symbol stub option. * obj-c++.dg/stubify-2.mm: Likewise. * objc.dg/stubify-1.m: Likewise. * objc.dg/stubify-2.m: Likewise. From-SVN: r274397
2019-07-24[Darwin] Partial reversion of 273749.Iain Sandoe1-1/+28
We still need to cater for pr80556, for the single-arch case. 2019-07-24 Iain Sandoe <iain@sandoe.co.uk> gcc/ PR bootstrap/87030 * config/i386/darwin.h (REAL_LIBGCC_SPEC): Revert r273749. From-SVN: r273768
2019-07-23[Darwin] Fix PR87030 add missed commit hunks.Iain Sandoe1-26/+0
Messed up the commit, and missed changes to gcc/config.gcc and to the comments in some of the headers. 2019-07-24 Iain Sandoe <iain@sandoe.co.uk> gcc/ PR bootstrap/87030 * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move from here... * config/i386/darwin32-biarch.h .. to here. * config/i386/darwin64-biarch.h: Adjust comments. * config/rs6000/darwin32-biarch.h: Likewise. * config/rs6000/darwin64-biarch.h: Likewise. * config.gcc: Missed commit from r273746 (*-*-darwin*): Don't include CPU t-darwin here. (i[34567]86-*-darwin*): Adjust to use biarch files. Produce an error message if i686-darwin configuration is attempted for Darwin >= 18. From-SVN: r273749
2019-07-23[Darwin] Fix PR87030 and tidy config fragments.Iain Sandoe1-5/+5
This is about 32/64b host and multilib support across the range of Darwin systems. Prior to Darwin8 (OS X 10.4), the toolchains support only PowerPC and only 32b. On Darwin8 it is possible to target a 64b multilib, but with support limited to a few of the main libraries on the system (not a recommended configuration). From Darwin9 to Darwin17 (OSX 10.5 to 10.13) it is possible to have either 32 or 64b hosted toolchains, with support for a 64 or 32b multilib respectively. On Darwin9 the kernel is 32b, but with support for 64b executables, so it's conventional to build a 32b host toolchain supporting a 64b multilib. However this is not enforced (merely a convention). There is also some platform hardware supporting Darwin10/11 which is only 32b and for which the same situation applies. However, from Darwin10 to Darwin17, the majority of platform hardware supports a 64b kernel and it's conventional to build a 64b host toolchain with support for a 32b multilib. On/from Darwin18 (OS X 10.14), the development headers (in the SDK) no longer expose the interfaces for the 32b multilib support (although sufficient runtime support remains installed that the testsuite can be run for a 32b multilib). The PR is raised against this latter situation since the absence of exposed interfaces causes a 'default' bootstrap fail regardless of the availability of the runtimes. Given the number of permutations, I felt it warranted a general solution, especially since the current scheme of target headers and t-make fragments has become somewhat messy. The changes here enforce the single 32b PowerPC multilib for Darwin < 8 and the single X86 64b multilib for Darwin >= 18. This means that there is no longer any need to configure Darwin18+ '--disable-multilib', but also that if you want to use the ability to continue to test the compiler's 32b multilib there, you need to make a configuration targeting an earlier OS version (and using the SDK from that). gcc/ PR bootstrap/87030 * config.gcc (*-*-darwin*): Don't include CPU t-darwin here. (i[34567]86-*-darwin*): Adjust to use biarch files. Produce an error message if i686-darwin configuration is attempted for Darwin >= 18. (x86_64-*-darwin*): Switch to single multilib for Darwin >= 18. (powerpc-*-darwin*): Use biarch files where needed. (powerpc64-*-darwin*): Likewise. * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move to new biarch file. (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single arch case. * config/i386/darwin32-biarch.h: New. * config/i386/darwin64.h: Rename. * gcc/config/i386/darwin64-biarch.h: To this. * config/i386/t-darwin: Rename. * gcc/config/i386/t-darwin32-biarch: To this. * config/i386/t-darwin64: Rename. * gcc/config/i386/t-darwin64-biarch: To this. * config/rs6000/darwin32-biarch.h: New. * config/rs6000/darwin64.h: Rename. * config/rs6000/darwin64-biarch.h: To this. (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single arch case. * config/rs6000/t-darwin8: Rename. * config/rs6000/t-darwin32-biarch: To this. * config/rs6000/t-darwin64 Rename. * config/rs6000/t-darwin64-biarch: To this. From-SVN: r273746
2019-06-16[Darwin] The need for picsym stubs is dependent on linker used, not OS rev.Iain Sandoe1-7/+5
For very old toolchains, the compiler generated pic symbol stubs that provide the necessary indirections. We no longer need this (since xcode 3 era) and it's more efficient for the linker to make one stub when it knows a symbol is needed that for us to emit them speculatively in every object. Our current codegen is making the assumption that a specific OS version uses a specific linker version - and therefore the presence of support could be based on the target OS rev. Of course, that's way too simplistic (most likely bogus for cross-toolchains) and we want to make things explict. Since we have detection of the linker version, we can use that directly (A config test for support for stub-less linking might also be feasible but much more involved). Finally, should the user wish to generate code that caters for export to use in an environment with an older toolchain, the generation of stubs can be forced from the command line. In addition to the points above, branch islanding and a long branch opt for PowerPC Darwin has become conflated with the emission of these stubs (which is confusing, and will be rectified in a following patch). 2019-06-16 Iain Sandoe <iain@sandoe.co.uk> * config/darwin.c (machopic_indirect_call_target): Use renamed darwin_picsymbol_stubs to decide on output. (darwin_override_options): Handle darwin_picsymbol_stubs. * config/darwin.h (MIN_LD64_OMIT_STUBS): New. (LD64_VERSION): Revise default. * config/darwin.opt: (mpic-symbol-stubs): New option. (darwin_picsymbol_stubs): New variable. * config/i386/darwin.h (TARGET_MACHO_BRANCH_ISLANDS): rename to TARGET_MACHO_PICSYM_STUBS. * config/i386/i386.c (output_pic_addr_const): Likewise. * config/i386/i386.h Likewise. * config/rs6000/darwin.h: Likewise. * config/rs6000/rs6000.c (rs6000_call_darwin_1): Use renamed darwin_picsymbol_stubs. From-SVN: r272356
2019-05-31Darwin, x86 - We have .p2align, so declare its use.Iain Sandoe1-0/+12
.p2align support is present in all x86 assemblers on released Darwin systems. gcc/ 2019-05-29 Iain Sandoe <iain@sandoe.co.uk> * config/i386/darwin.h (ASM_OUTPUT_MAX_SKIP_ALIGN): New. From-SVN: r271799
2019-05-23darwin, x86 - disable '-mfentry' for the port.Iain Sandoe1-1/+2
This can't work without special support because placing the call directly after the function label breaks the ABI requirement that call sites are 16byte aligned. gcc/ 2019-05-23 Iain Sandoe <iain@sandoe.co.uk> * config/i386/darwin.h: Reject -mfentry*. * doc/sourcebuild.texi: Document mfentry target support. gcc/testsuite/ 2019-05-23 Iain Sandoe <iain@sandoe.co.uk> * lib/target-supports.exp (check_effective_target_mfentry): New. * gcc.target/i386/fentry-override.c: Require effective target mfentry. * gcc/testsuite/gcc.target/i386/fentry.c: Likewise * gcc.target/i386/fentryname1.c: Likewise * gcc.target/i386/fentryname2.c: Likewise * gcc.target/i386/fentryname3.c: Likewise * gcc.target/i386/nop-mcount.c: Likewise * gcc.target/i386/pr82699-2.c: Likewise * gcc.target/i386/pr82699-4.c: Likewise * gcc.target/i386/pr82699-5.c: Likewise * gcc.target/i386/pr82699-6.c: Likewise * gcc.target/i386/returninst1.c: Likewise * gcc.target/i386/returninst2.c: Likewise * gcc.target/i386/returninst3.c : Likewise From-SVN: r271580
2019-05-14darwin, testsuite, fix more PR 82920Iain Sandoe1-1/+2
Darwin doesn't support mx32, and some tests were failing because it was trying to do them. When we disable this it turns out that quite a few tests requiring mx32 support were not guarded. gcc/ 2019-05-14 Iain Sandoe <iain@sandoe.co.uk> PR target/82920 * config/i386/darwin.h (CC1_SPEC): Report -mx32 as an error for Darwin. gcc/testsuite/ 2019-05-14 Iain Sandoe <iain@sandoe.co.uk> PR target/82920 * gcc.target/i386/cet-sjlj-6b.c: Require effective target x32. * gcc.target/i386/pr52146.c: Likewise. * gcc.target/i386/pr52698.c: Likewise. * gcc.target/i386/pr52857-1.c: Likewise. * gcc.target/i386/pr52857-2.c: Likewise. * gcc.target/i386/pr52876.c: Likewise. * gcc.target/i386/pr53698.c: Likewise. * gcc.target/i386/pr54157.c: Likewise. * gcc.target/i386/pr55049-1.c: Likewise. * gcc.target/i386/pr55093.c: Likewise. * gcc.target/i386/pr55116-1.c: Likewise. * gcc.target/i386/pr55116-2.c: Likewise. * gcc.target/i386/pr55597.c: Likewise. * gcc.target/i386/pr59929.c: Likewise. * gcc.target/i386/pr66470.c: Likewise. From-SVN: r271190
2019-02-15darwin.h (TARGET_FPMATH_DEFAULT_P): New define.Uros Bizjak1-63/+65
* config/i386/darwin.h (TARGET_FPMATH_DEFAULT_P): New define. From-SVN: r268944
2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-12-23Fix ident tests by Enabling ident output for X86 Darwin.Iain Sandoe1-0/+5
The c-c++-common tests fail (or XPASS depending on which) on Darwin because it doesn't currently emit .ident marker. For X86 Darwin, this is a trivial oversight; the assembler supports the directive. We can therefore use the default target hook there. 2018-12-23 Iain Sandoe <iain@sandoe.co.uk> * config/i386/darwin.h (TARGET_ASM_OUTPUT_IDENT): New. From-SVN: r267372
2018-12-06Fix for PR78444 by ensuring 128b alignment at call sites.Iain Sandoe1-3/+0
2018-12-06 Iain Sandoe <iain@sandoe.co.uk> PR target/78444 * config/i386/darwin.h (STACK_BOUNDARY): Remove macro. * config/i386/i386.c (ix86_compute_frame_layout): Ensure at least 128b stack alignment in non-leaf functions. From-SVN: r266853
2018-11-11re PR target/87928 (ICE in ix86_compute_frame_layout, at ↵Uros Bizjak1-2/+1
config/i386/i386.c:11161 since r228607) PR target/87928 * config/i386/i386.h (STACK_BOUNDARY): Use TARGET_64BIT_MS_ABI instead of (TARGET_64BIT && ix86_abi == MS_ABI). * config/i386/darwin.h (STACK_BOUNDARY): Ditto. * config/i386/cygming.h (STACK_BOUNDARY): Remove. testsuite /Changelog: PR target/87928 * gcc.target/i386/pr87928.c: New test. From-SVN: r266016
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-09-25[Patch, Darwin] Fix PR80556 by linking the system unwinder ahead of libgcc_eh.Iain Sandoe1-0/+26
PR target/80556 * config/i386/darwin.h (REAL_LIB_SPEC): New; put libSystem ahead of libgcc_eh for m64. * config/i386/darwin64.h: Likewise. /* WORKAROUND pr80556: For x86_64 Darwin10 and later, the unwinder is in libunwind (redirected from libSystem). This doesn't use the keymgr (see keymgr.c) and therefore the calls that libgcc makes to obtain the KEYMGR_GCC3_DW2_OBJ_LIST are not updated to include new images, and might not even be valid for a single image. Therefore, for 64b exes at least, we must use the libunwind implementation, even when static-libgcc is specified. We put libSystem first so that unwinder symbols are satisfied from there. From-SVN: r253137
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-11-27[Darwin] fix PR67710 by updating 'as' specs to handle newer assembler versions.Iain Sandoe1-2/+3
A/ Newer versions of ld64 check the min_version command, and newer versions of the system assembler inserts this in response to "-mmacosx-version-min=" on the assembler line. Unless one makes sensible versions, some object is bound to conflict. B/ Additionally, there's a difference in behaviour between "as" and "ld" when presented with xx.yy.zz (ld truncates to xx.yy, as doesn't); net result is that one needs to pass a truncated version to "as". So (if the assembler supports minversion commands) (a) provide a truncated minversion (as asm_macosx_version_min, which is a driver-only var). (b) pass this to "as" (c) Update tests to determine 'HAVE_AS_MMACOSX_VERSION_MIN_OPTION' (Rainer's patch) (d) For some reason the testcases are "run" (it's not obvious they need to be, they are checking compile-time issues) - anyway, to preserve the status quo, I've left them as exec. However, the minimum version that can be code-gened for is target-dependent (there are no released x86 versions before 10.4, for example). To avoid conflicts where the "as" is assuming some minimum, I've set the testversion to 10.5 (which is supported by all the archs we have) (e) We need to ensure that libgcc and crts are generated with a sufficiently old minversion not to conflict. gcc/ 2016-11-27 Iain Sandoe <iain@codesourcery.com> Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> PR target/67710 * config.in: Regenerate * config/darwin-driver.c (darwin_driver_init): Emit a version string for the assembler. * config/darwin.h(ASM_MMACOSX_VERSION_MIN_SPEC): New, new tests. * config/darwin.opt(asm_macosx_version_min): New. * config/i386/darwin.h: Handle ASM_MMACOSX_VERSION_MIN_SPEC. * configure: Regenerate * configure.ac: Check for mmacosx-version-min handling. gcc/testsuite/ 2016-11-27 Iain Sandoe <iain@codesourcery.com> Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> Dominique d'Humieres <dominiq@lps.ens.fr> PR target/67710 * gcc.dg/darwin-minversion-1.c: Update min version check. * gcc.dg/darwin-minversion-2.c: Likewise. * gcc.dg/darwin-minversion-3.c: Likewise. libgcc/ 2016-11-27 Iain Sandoe <iain@codesourcery.com> Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> PR target/67710 * config/t-darwin: Default builds to 10.5 codegen. Co-Authored-By: Dominique d'Humieres <dominiq@lps.ens.fr> Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> From-SVN: r242898
2016-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r232055
2015-12-17Only support -gstabs on Mac OS X if assember supports it (PR target/67973)Rainer Orth1-0/+4
gcc: PR target/67973 * configure.ac (gcc_cv_as_stabs_directive): New test. * configure: Regenerate. * config.in: Regenerate. * config/darwin.h (DBX_DEBUGGING_INFO): Wrap in HAVE_AS_STABS_DIRECTIVE. (PREFERRED_DEBUGGING_TYPE): Likewise. * config/i386/darwin.h (PREFERRED_DEBUGGING_TYPE): Only include DBX_DEBUG if HAVE_AS_STABS_DIRECTIVE. * doc/sourcebuild.texi (Effective-Target Keywords, Environment attributes): Document stabs. gcc/testsuite: PR target/67973 * lib/target-supports.exp (check_effective_target_stabs): New proc. * g++.dg/cpp0x/alias-decl-debug-0.C: Restrict to stabs targets. * g++.dg/other/PR23205.C: Likewise. * g++.dg/other/pr23205-2.C: Likewise. * gcc.dg/20040813-1.c: Likewise. * gcc.dg/darwin-20040809-2.c: Likewise. * objc.dg/stabs-1.m: Likewise. From-SVN: r231747
2015-10-18Darwin - Tidy mmacosx-version-min code and specs.Iain Sandoe1-10/+0
gcc/ * config/darwin-driver.c (darwin_default_min_version): Refactor code. (darwin_driver_init): Note a version-min when provided on the c/l. * config/darwin.h (%darwin_minversion): Remove. * config/i386/darwin.h: Likewise. * config/rs6000/darwin.h: Likewise. * config/darwin.opt (mmacosx-version-min=): Use the configured default, rather than an arbitrary constant. From-SVN: r228944
2015-01-05Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r219188
2014-09-19Remove LIBGCC2_TF_CEXT target macro.Joseph Myers1-3/+0
This patch removes the (undocumented) LIBGCC2_TF_CEXT target macro, replacing it by -fbuilding-libgcc predefines (and thereby gets rid of another LIBGCC2_LONG_DOUBLE_TYPE_SIZE conditional, though some more patches are needed before that target macro can be eliminated). This macro indicated the suffix used on __builtin_huge_val, __builtin_copysign, __builtin_fabs built-in function names to produce the names for a given floating-point mode. Predefines are added for all floating-point modes supported for libgcc, not just TFmode. These are fully accurate for modes corresponding to float, double and long double. For other modes, the suffix for *constants* is determined by the targetm.c.mode_for_suffix hook (the limit to two possible suffixes 'w' and 'q' being hardcoded in various places). This is in fact the suffix for built-in functions as well where such functions exist. * For i386, the *q functions always exist (whether or not TFmode is used for long double). The *w functions never exist (but this doesn't matter for libgcc, since no i386 configuration treats XFmode as a supported scalar mode if long double is TFmode; if __float80 were to be supported for 64-bit Android, properly such functions ought to be added). * For ia64, the *q functions exist for non-HP-UX (under HP-UX, long double is TFmode, so they aren't needed). The *w functions never exist. This is an issue for this libgcc code for the XFmode complex functions in libgcc on HP-UX; as I understand it, right now those will accidentally be using TFmode versions of those three functions, so involving unnecessary conversions, while the sanity check on CEXT accidentally passes because all it tests is the sizes of the types. Because of the lack of 'w' functions, the patch uses 'l' when the constant suffix is 'w', matching what the existing libgcc code would do for IA64 HP-UX in that case. Ideally there would be generic code to create such built-in functions for all supported floating-point types. That may be something to consider if support for TS 18661-3 (standard bindings for IEEE 754-2008, defining names such as _Float128, and function names such as copysignf128) is added in future. Bootstrapped with no regressions on x86_64-unknown-linux-gnu. gcc: * system.h (LIBGCC2_TF_CEXT): Poison. * config/i386/cygming.h (LIBGCC2_TF_CEXT): Remove. * config/i386/darwin.h (LIBGCC2_TF_CEXT): Likewise. * config/i386/dragonfly.h (LIBGCC2_TF_CEXT): Likewise. * config/i386/freebsd.h (LIBGCC2_TF_CEXT): Likewise. * config/i386/gnu-user-common.h (LIBGCC2_TF_CEXT): Likewise. * config/i386/openbsdelf.h (LIBGCC2_TF_CEXT): Likewise. * config/i386/sol2.h (LIBGCC2_TF_CEXT): Likewise. * config/ia64/ia64.h (LIBGCC2_TF_CEXT): Likewise. * config/ia64/linux.h (LIBGCC2_TF_CEXT): Likewise. gcc/c-family: * c-cppbuiltin.c (c_cpp_builtins): Define __LIBGCC_*_FUNC_EXT__ for supported floating-point modes. libgcc: * libgcc2.c (CEXT): Define using __LIBGCC_*_FUNC_EXT__. From-SVN: r215368
2014-09-12Remove LIBGCC2_HAS_?F_MODE target macros.Joseph Myers1-2/+0
This patch removes the LIBGCC2_HAS_{SF,DF,XF,TF}_MODE target macros, replacing them by predefines with -fbuilding-libgcc, together with a target hook that can influence those predefines when needed. The new default is that a floating-point mode is supported in libgcc if (a) it passes the scalar_mode_supported_p hook (otherwise it's not plausible for it to be supported in libgcc) and (b) it's one of those four modes (since those are the modes for which libgcc hardcodes the possibility of support). The target hook can override the default choice (in either direction) for modes that pass scalar_mode_supported_p (although overriding in the direction of returning true when the default would return false only makes sense if all relevant functions are specially defined in libgcc for that particular target). The previous default settings depended on various settings such as LIBGCC2_LONG_DOUBLE_TYPE_SIZE, as well as targets defining the above target macros if the default wasn't correct. The default scalar_mode_supported_p only declares a floating-point mode to be supported if it matches one of float / double / long double. This means that in most cases where a mode is only supported conditionally in libgcc (TFmode only supported if it's the mode of long double, most commonly), the default gets things right. Overrides were needed in the following cases: * SFmode would always have been supported in libgcc (the condition was BITS_PER_UNIT == 8, true for all current targets), but pdp11 defaults to 64-bit float, and in that case SFmode would fail scalar_mode_supported_p. I don't know if libgcc actually built for pdp11 (and the port may well no longer be being used), but this patch adds a scalar_mode_supported_p hook to it to ensure SFmode is treated as supported. * Certain i386 and ia64 targets need the new hook to match the existing cases for when XFmode or TFmode support is present in libgcc. For i386, the hook can always declare XFmode to be supported - the cases where it's not are the cases where long double is TFmode, in which case XFmode fails scalar_mode_supported_p[*] - but TFmode support needs to be conditional. (And of the targets not defining LIBGCC2_HAS_TF_MODE before this patch, some defined LONG_DOUBLE_TYPE_SIZE to 64, so ensuring LIBGCC2_HAS_TF_MODE would always be false, while others did not define it, so allowing it to be true in the -mlong-double-128 case. This patch matches that logic, although I suspect all the latter targets would have been broken if you tried to enable -mlong-double-128 by default, for lack of the soft-fp TFmode support in libgcc, which is separately configured.) [*] I don't know if it's deliberate not to support __float80 at all with -mlong-double-128. In order to implement the default version of the new hook, insn-modes.h was made to contain macros such as HAVE_TFmode for each machine mode, so the default hook can contain conditionals on whether XFmode and TFmode exist (to match the hardcoding of a list of modes in libgcc). This is also used in fortran/trans-types.c; previously it had a conditional on defined(LIBGCC2_HAS_TF_MODE) (a bit dubious, since it ignored the value of the macro), which is replaced by testing defined(HAVE_TFmode), in conjunction with requiring targetm.libgcc_floating_mode_supported_p. (Fortran is testing something stronger than that hook: not only is libgcc support required, but also libm or equivalent. Thus, it has a test for ENABLE_LIBQUADMATH_SUPPORT in the case that the mode is TFmode and that's not the same as any of the three standard types. The old and new tests are intended to accept exactly the same set of modes for all targets.) Apart from the four target macros eliminated by this patch, it gets us closer to eliminating LIBGCC2_LONG_DOUBLE_TYPE_SIZE as well, though a few more places using that macro need changing first. Bootstrapped with no regressions on x86_64-unknown-linux-gnu; also built cc1 for crosses to ia64-elf and pdp11-none as a minimal test of changes for those targets. gcc: * target.def (libgcc_floating_mode_supported_p): New hook. * targhooks.c (default_libgcc_floating_mode_supported_p): New function. * targhooks.h (default_libgcc_floating_mode_supported_p): Declare. * doc/tm.texi.in (LIBGCC2_HAS_DF_MODE, LIBGCC2_HAS_XF_MODE) (LIBGCC2_HAS_TF_MODE): Remove. (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): New @hook. * doc/tm.texi: Regenerate. * genmodes.c (emit_insn_modes_h): Define HAVE_%smode for each machine mode. * system.h (LIBGCC2_HAS_SF_MODE, LIBGCC2_HAS_DF_MODE) (LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE): Poison. * config/i386/cygming.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/darwin.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/djgpp.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/dragonfly.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/freebsd.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/gnu-user-common.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/i386-interix.h (IX86_NO_LIBGCC_TFMODE): Define. * config/i386/i386.c (ix86_libgcc_floating_mode_supported_p): New function. (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define. * config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/i386/openbsdelf.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Define. * config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Remove. * config/i386/vx-common.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define. * config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Define. * config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Define. * config/ia64/hpux.h (LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE): Remove. * config/ia64/ia64.c (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): New macro. (ia64_libgcc_floating_mode_supported_p): New function. * config/ia64/linux.h (LIBGCC2_HAS_TF_MODE): Remove. * config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE) (IA64_NO_LIBGCC_TFMODE): Define. * config/msp430/msp430.h (LIBGCC2_HAS_DF_MODE): Remove. * config/pdp11/pdp11.c (TARGET_SCALAR_MODE_SUPPORTED_P): New macro. (pdp11_scalar_mode_supported_p): New function. * config/rl78/rl78.h (LIBGCC2_HAS_DF_MODE): Remove. * config/rx/rx.h (LIBGCC2_HAS_DF_MODE): Remove. gcc/c-family: * c-cppbuiltin.c (c_cpp_builtins): Define __LIBGCC_HAS_%s_MODE__ macros for floating-point modes. gcc/fortran: * trans-types.c (gfc_init_kinds): Check targetm.libgcc_floating_mode_supported_p for floating-point modes. Check HAVE_TFmode instead of LIBGCC2_HAS_TF_MODE. libgcc: * libgcc2.h (LIBGCC2_HAS_SF_MODE): Define using __LIBGCC_HAS_SF_MODE__. (LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__. (LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__. (LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__. * config/libbid/bid_gcc_intrinsics.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define. (LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__. (LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__. * fixed-bit.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define. (LIBGCC2_HAS_SF_MODE): Define using __LIBGCC_HAS_SF_MODE__. (LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__. From-SVN: r215215
2014-09-08Remove SF_SIZE etc. target macros.Joseph Myers1-1/+0
gcc: * config/i386/cygming.h (TF_SIZE): Remove. * config/i386/darwin.h (TF_SIZE): Remove. * config/i386/dragonfly.h (TF_SIZE): Remove. * config/i386/freebsd.h (TF_SIZE): Remove. * config/i386/gnu-user-common.h (TF_SIZE): Remove. * config/i386/openbsdelf.h (TF_SIZE): Remove. * config/i386/sol2.h (TF_SIZE): Remove. * config/ia64/hpux.h (XF_SIZE, TF_SIZE): Remove. * config/ia64/linux.h (TF_SIZE): Remove. * doc/tm.texi.in (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Remove. * doc/tm.texi: Regenerate. * system.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Poison. gcc/c-family: * c-cppbuiltin.c (c_cpp_builtins): Define macros for mantissa digits of floating-point modes if -fbuilding-libgcc. libgcc: * libgcc2.c (SF_SIZE): Change all uses to __LIBGCC_SF_MANT_DIG__. (DF_SIZE): Change all uses to __LIBGCC_DF_MANT_DIG__. (XF_SIZE): Change all uses to __LIBGCC_XF_MANT_DIG__. (TF_SIZE): Change all uses to __LIBGCC_TF_MANT_DIG__. * libgcc2.h (SF_SIZE): Change to __LIBGCC_SF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_SF_MODE is defined. (DF_SIZE): Change to __LIBGCC_DF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_DF_MODE is defined. (XF_SIZE): Change to __LIBGCC_XF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_XF_MODE is defined. (TF_SIZE): Change to __LIBGCC_TF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_TF_MODE is defined. From-SVN: r215014
2014-03-21re PR target/60610 (ICE in convert_regs_1, at reg-stack.c:3064)Jakub Jelinek1-0/+2
PR target/60610 * config/i386/i386.h (TARGET_64BIT_P): If not TARGET_BI_ARCH, redefine to 1 or 0. * config/i386/darwin.h (TARGET_64BIT_P): Redefine to TARGET_ISA_64BIT_P(x). From-SVN: r208756
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