Eric Lee / linux-smarc-t335x-v3.2

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Commit 003086497f07f7f1e67c0c295e261740f822b377

Authored by Kyle McMartin
Committed by Linus Torvalds
1 parent 1db4b2d221

Build with -fno-dwarf2-cfi-asm 

With a sufficiently new compiler and binutils, code which wasn't
previously generating .eh_frame sections has begun to.  Certain
architectures (powerpc, in this case) may generate unexpected relocation
formats in response to this, preventing modules from loading.

While the new relocation types should probably be handled, revert to the
previous behaviour with regards to generation of .eh_frame sections.

(This was reported against Fedora, which appears to be the only distro
doing any building against gcc-4.4 at present: RH bz#486545.)

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Alexandre Oliva <aoliva@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 3 additions and 0 deletions Side-by-side Diff

... ... @@ -569,6 +569,9 @@
569 569 # disable invalid "can't wrap" optimzations for signed / pointers
570 570 KBUILD_CFLAGS += $(call cc-option,-fwrapv)
571 571  
  572 +# revert to pre-gcc-4.4 behaviour of .eh_frame
  573 +KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
  574 +
572 575 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
573 576 # But warn user when we do so
574 577 warn-assign = \