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From: sergos via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: Maksim Kokryashkin <max.kokryashkin@gmail.com>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH luajit v4 3/8] OSX/ARM64: Disable external unwinding for now.
Date: Mon, 5 Dec 2022 19:11:53 +0300	[thread overview]
Message-ID: <6AE72DB6-762B-4FCC-A3A0-431302CA5FBA@tarantool.org> (raw)
In-Reply-To: <20221028092638.11506-4-max.kokryashkin@gmail.com>

Hi!

Thanks for the patch!

LGTM

Sergos


> On 28 Oct 2022, at 12:26, Maksim Kokryashkin <max.kokryashkin@gmail.com> wrote:
> 
> From: Mike Pall <mike>
> 
> This reduces functionality, e.g. no handling of on-trace errors.
> Someone with very deep knowledge about macOS and MACH-O/DWARF stack
> unwinding internals is needed to fix this. See issue #698.
> 
> (cherry picked from commit 27ee3bcd79b12a0c71f00427ee1a2e486c684486)
> 
> ARM64 interpreter doesn't have unwind info for Mach-O assembler
> format, which makes unwinding impossible. Because of that
> external unwinding on ARM64 MacOS is temporarily disabled.
> 
> Maxim Kokryashkin:
> * added the description for the problem
> 
> Needed for tarantool/tarantool#6096
> Part of tarantool/tarantool#7230
> ---
> cmake/SetTargetFlags.cmake | 4 +++-
> src/Makefile.original      | 5 ++++-
> 2 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/cmake/SetTargetFlags.cmake b/cmake/SetTargetFlags.cmake
> index a5a3407f..d99e1f9a 100644
> --- a/cmake/SetTargetFlags.cmake
> +++ b/cmake/SetTargetFlags.cmake
> @@ -16,7 +16,9 @@ LuaJITTestArch(TESTARCH "${TARGET_C_FLAGS}")
> LuaJITArch(LUAJIT_ARCH "${TESTARCH}")
> 
> if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
> -  AppendFlags(TARGET_C_FLAGS -DLUAJIT_UNWIND_EXTERNAL)
> +  if(NOT LUAJIT_ARCH STREQUAL "arm64")
> +    AppendFlags(TARGET_C_FLAGS -DLUAJIT_UNWIND_EXTERNAL)
> +  endif()
> else()
>   string(FIND ${TARGET_C_FLAGS} "LJ_NO_UNWIND 1" UNWIND_POS)
>   if(UNWIND_POS EQUAL -1)
> diff --git a/src/Makefile.original b/src/Makefile.original
> index d1373b40..5826a56a 100644
> --- a/src/Makefile.original
> +++ b/src/Makefile.original
> @@ -325,7 +325,10 @@ ifeq (Darwin,$(TARGET_SYS))
>     export MACOSX_DEPLOYMENT_TARGET=10.4
>   endif
>   TARGET_STRIP+= -x
> -  TARGET_XCFLAGS+= -DLUAJIT_UNWIND_EXTERNAL
> +  # Ext. unwinding is broken on OSX/ARM64 until someone finds a fix. See #698.
> +  ifneq (arm64,$(TARGET_LJARCH))
> +    TARGET_XCFLAGS+= -DLUAJIT_UNWIND_EXTERNAL
> +  endif
>   TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC
>   TARGET_DYNXLDOPTS=
>   TARGET_XSHLDFLAGS+= -install_name $(TARGET_DYLIBPATH) -compatibility_version $(MAJVER).$(MINVER) -current_version $(MAJVER).$(MINVER).$(RELVER)
> -- 
> 2.37.0 (Apple Git-136)
> 


  parent reply	other threads:[~2022-12-05 16:12 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20221028092638.11506-1-max.kokryashkin@gmail.com>
     [not found] ` <20221028092638.11506-6-max.kokryashkin@gmail.com>
2022-11-24 11:41   ` [Tarantool-patches] [PATCH luajit v4 5/8] OSX/ARM64: Disable unwind info Sergey Kaplun via Tarantool-patches
2022-11-30 13:05     ` Maxim Kokryashkin via Tarantool-patches
2022-12-05 21:43   ` sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-7-max.kokryashkin@gmail.com>
2022-11-24 11:49   ` [Tarantool-patches] [PATCH luajit v4 6/8] BSD: Fix build with BSD grep Sergey Kaplun via Tarantool-patches
2022-11-30 13:05     ` Maxim Kokryashkin via Tarantool-patches
2022-12-05 21:46   ` sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-2-max.kokryashkin@gmail.com>
2022-12-05 16:01   ` [Tarantool-patches] [PATCH luajit v4 1/8] Cleanup and enable external unwinding for more platforms sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-3-max.kokryashkin@gmail.com>
2022-12-05 16:06   ` [Tarantool-patches] [PATCH luajit v4 2/8] OSX: Fix build by hardcoding external frame unwinding sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-4-max.kokryashkin@gmail.com>
2022-12-05 16:11   ` sergos via Tarantool-patches [this message]
     [not found] ` <20221028092638.11506-5-max.kokryashkin@gmail.com>
2022-11-24 11:37   ` [Tarantool-patches] [PATCH luajit v4 4/8] ARM64: Reorder interpreter stack frame and fix unwinding Sergey Kaplun via Tarantool-patches
2022-11-30 13:04     ` Maxim Kokryashkin via Tarantool-patches
2022-12-05 21:42   ` sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-8-max.kokryashkin@gmail.com>
2022-11-24 11:56   ` [Tarantool-patches] [PATCH luajit v4 7/8] Fix build with busybox grep Sergey Kaplun via Tarantool-patches
2022-11-30 13:06     ` Maxim Kokryashkin via Tarantool-patches
2022-12-05 21:51   ` sergos via Tarantool-patches
     [not found] ` <20221028092638.11506-9-max.kokryashkin@gmail.com>
2022-11-24 13:10   ` [Tarantool-patches] [PATCH luajit v4 8/8] OSX/ARM64: Fix external unwinding Sergey Kaplun via Tarantool-patches
2022-11-30 13:21     ` Maxim Kokryashkin via Tarantool-patches
2022-12-01  8:52       ` Sergey Kaplun via Tarantool-patches
2022-12-01 12:28         ` Sergey Kaplun via Tarantool-patches
2022-12-06  5:58   ` sergos via Tarantool-patches

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