The Tor Browser: build/autoconf/frameptr.m4@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 dnl This Source Code Form is subject to the terms of the Mozilla Public

     2 dnl License, v. 2.0. If a copy of the MPL was not distributed with this

     3 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.

     5 dnl Set MOZ_FRAMEPTR_FLAGS to the flags that should be used for enabling or

     6 dnl disabling frame pointers in this architecture based on the configure

     7 dnl options

     9 AC_DEFUN([MOZ_SET_FRAMEPTR_FLAGS], [

    10   case "$target" in

    11   *android*)

    12     unwind_tables="-funwind-tables"

    13     ;;

    14   esac

    15   if test "$GNU_CC"; then

    16     MOZ_ENABLE_FRAME_PTR="-fno-omit-frame-pointer $unwind_tables"

    17     MOZ_DISABLE_FRAME_PTR="-fomit-frame-pointer"

    18     if test "$CPU_ARCH" = arm; then

    19       # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54398

    20       MOZ_ENABLE_FRAME_PTR="$unwind_tables"

    21     fi

    22   else

    23     case "$target" in

    24     *-mingw*)

    25       MOZ_ENABLE_FRAME_PTR="-Oy-"

    26       MOZ_DISABLE_FRAME_PTR="-Oy"

    27     ;;

    28     esac

    29   fi

    31   # if we are debugging, profiling or using ASAN, we want a frame pointer.

    32   if test -z "$MOZ_OPTIMIZE" -o \

    33           -n "$MOZ_PROFILING" -o \

    34           -n "$MOZ_DEBUG" -o \

    35           -n "$MOZ_ASAN"; then

    36     MOZ_FRAMEPTR_FLAGS="$MOZ_ENABLE_FRAME_PTR"

    37   else

    38     MOZ_FRAMEPTR_FLAGS="$MOZ_DISABLE_FRAME_PTR"

    39   fi

    40 ])

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