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get rid of eh_frame bloat

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if needed for debugging, it will be output in the .debug_frame section
instead, where it is not part of the loaded program and where the
strip command is free to strip it.
This commit is contained in:
Rich Felker 2012-08-29 09:36:02 -04:00
parent 8b28aa9c94
commit b439c051c7
1 changed files with 12 additions and 3 deletions
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15
configure vendored
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@ -226,15 +226,24 @@ test "x$debug" = xyes && CFLAGS_AUTO="-g"
tryflag CFLAGS_AUTO -pipe
#
# If debugging is disabled, omit bloated DWARF2 unwind tables & frame ptr
# If debugging is disabled, omit frame pointer. Modern GCC does this
# anyway on most archs even when debugging is enabled since the frame
# pointer is no longer needed for debugging.
#
if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" ; then :
else
tryflag CFLAGS_AUTO -fno-unwind-tables
tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
tryflag CFLAGS_AUTO -fomit-frame-pointer
fi
#
# Modern GCC wants to put DWARF tables (used for debugging and
# unwinding) in the loaded part of the program where they are
# unstrippable. These options force them back to debug sections (and
# cause them not to get generated at all if debugging is off).
#
tryflag CFLAGS_AUTO -fno-unwind-tables
tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
#
# Some optimization levels add bloated alignment that hurt performance
#