The GCC ChangeLog does not have a complete description to quote here,
so:
arm.c:
* arm_override_options(): Set arm_is_scale according to the the
-mcpu=xscale option. Set arm_constant_limit to 2 if arm_is_xscale.
* arm_adjust_cost(): If arm_is_xscale, account for stalls that can
occur due to shifted operands.
* arm_gen_load_multiple(): Account for the cost of ldm vs. ldr if
arm_is_xscale.
* arm_gen_store_multiple(): Likewise for stm vs. str.
arm.h:
* CONSTANT_ALIGNMENT(): Use a constant alignment factor of 2 if
arm_is_xscale.
* MOVE_RATIO: Set to 4 if arm_is_xscale.
arm.md:
* Add XScale scheduling parameters.
* Define a "shift" attribute (used by arm_adjust_cost()) and give it
to the appropriate operands on andsi_not_shiftsi_si, *shiftsi3,
*shiftsi3_compare0, *shiftsi3_compare0_scratch, *notsi_shiftsi,
*notsi_shiftsi_compare0, *not_shiftsi_compare0_scratch,
abssi2, *neg_abssi2, extendsidi2, *cmpsi_shiftsi, *cmpsi_shiftsi_swp,
*cmpsi_neg_shiftsi, *arith_shiftsi, *arith_shiftsi_compare0,
*arith_shiftsi_compare0_scratch, *sub_shiftsi, *sub_shiftsi_compare0,
*sub_shiftsi_compare0_scratch, *if_shift_move, *if_move_shift,
and *if_shift_shift.
treated like -march=armv4t, but which generate __ARM_ARCH_5__,
__ARM_ARCH_5T__, and __ARM_ARCH_5TE__ defines, respecitively.
* Add -mcpu=xscale, which is internally treated like -mcpu=strongarm,
but which generates __ARM_ARCH_5TE__ and __XSCALE__ defines.
These command-line options and definitions are consistent with gcc 3.x,
and allow NetBSD Makefiles to use them in a forward-compatible way, and
also give hand-tuned source code (e.g. assembly) a chance of tuning for
XScale.
reasons:
1) There is already a destructor that does this. The atexit() is superfluous.
2) If libstdc++ is loaded dynamically by dlopen() and then is removed by
dlclose(), the pointer is no longer valid and the program would core dump
at exit() time. (This caused xmms to core dump at exit when xmms-sid was
installed, for example.)
also comment out continuation lines. Fixes Linux->NetBSD
cross-gdb when built using NetBSD's make(1) (a'la build.sh -t).
toolchain/16713, Christian Limpach <chris@Pin.LU>.
Patch also submitted up-stream to GDB.
2002-02-07 Daniel Jacobowitz <drow@mvista.com>
* bfd-in.h: Update <stdbool.h> check to only see if <stdbool.h> has
been included, not drag it in.
* bfd-in2.h: Regenerate.
Fixes toolchain/16709, from Christian Limpach <chris@Pin.LU>.
(alpha_expand_unaligned_load, alpha_expand_unaligned_store):
Cast switch operand of size to int.
Fixes one 32-bit host cross-compile problem, but still doesn't work...
compare_addsi2_op0 & compare_addsi2_op1. From the comment I've just
inserted:
;; XXX RWE: The reload pass of GCC-2.95 makes a mess of these if one of the
;; arguments is, or is directly derived from, an eliminable register. In
;; that case reload will substitue into the PLUS and then canonicalize it
;; without regard to the the match_dup parts. Since these are rare, I've
;; disabled them for now, but they should be OK in 3.x (which manages the
;; substitution without canonicalization.
Fixes PRs port-arm/16424 and toolchain/16304.
