components/developer/gcc-10/patches/0012-We-never-want-to-omit-the-frame-pointer-regardless-o.patch

   1 From 311dfd4e74dabfc23bc08f8825776a1ff430ebbe Mon Sep 17 00:00:00 2001
   2 From: Andy Fiddaman <omnios@citrus-it.co.uk>
   3 Date: Thu, 25 Oct 2018 18:19:36 +0000
   4 Subject: [PATCH 12/34] We never want to omit the frame pointer, regardless of
   5  the optimisation level or options to gcc - we like stack traces too much and
   6  it is of questionable benefit anyway, even on i386.
   7
   8 ---
   9  gcc/config/i386/i386-options.c | 9 +++++++++
  10  gcc/opts.c                     | 3 ++-
  11  2 files changed, 11 insertions(+), 1 deletion(-)
  12
  13 diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c
  14 index 6f05496841b..8605ef21dbc 100644
  15 --- a/gcc/config/i386/i386-options.c
  16 +++ b/gcc/config/i386/i386-options.c
  17 @@ -2904,6 +2904,15 @@ ix86_option_override_internal (bool main_args_p,
  18        free (str);
  19      }
  20
  21 +  /*
  22 +   * We never want to omit the frame pointer, regardless of the optimisation
  23 +   * level or options to gcc - we like stack traces too much and it is of
  24 +   * questionable benefit anyway, even on i386.
  25 +   */
  26 +
  27 +  flag_omit_frame_pointer = 0;
  28 +  opts->x_flag_omit_frame_pointer = 0;
  29 +
  30    /* Save the initial options in case the user does function specific
  31       options.  */
  32    if (main_args_p)
  33 diff --git a/gcc/opts.c b/gcc/opts.c
  34 index 73162528938..5e0ea01a0a1 100644
  35 --- a/gcc/opts.c
  36 +++ b/gcc/opts.c
  37 @@ -439,7 +439,7 @@ static const struct default_options default_options_table[] =
  38      { OPT_LEVELS_1_PLUS, OPT_fipa_reference, NULL, 1 },
  39      { OPT_LEVELS_1_PLUS, OPT_fipa_reference_addressable, NULL, 1 },
  40      { OPT_LEVELS_1_PLUS, OPT_fmerge_constants, NULL, 1 },
  41 -    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
  42 +    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 0 },
  43      { OPT_LEVELS_1_PLUS, OPT_freorder_blocks, NULL, 1 },
  44      { OPT_LEVELS_1_PLUS, OPT_fshrink_wrap, NULL, 1 },
  45      { OPT_LEVELS_1_PLUS, OPT_fsplit_wide_types, NULL, 1 },
  46 @@ -471,6 +471,7 @@ static const struct default_options default_options_table[] =
  47      { OPT_LEVELS_1_PLUS_NOT_DEBUG, OPT_ftree_pta, NULL, 1 },
  48      { OPT_LEVELS_1_PLUS_NOT_DEBUG, OPT_ftree_sra, NULL, 1 },
  49
  50 +
  51      /* -O2 and -Os optimizations.  */
  52      { OPT_LEVELS_2_PLUS, OPT_fcaller_saves, NULL, 1 },
  53      { OPT_LEVELS_2_PLUS, OPT_fcode_hoisting, NULL, 1 },
  54 --
  55 2.31.1
  56