* ns32k_gen_operand is no longer needed.
* new function symbolic_reference_mentioned_p (stolen from i386).
* make print_operand dtrt when printing symbolic "constants" in picmode
and abort for the cases that it can't handle (e.g. symbol+offset).
ns32k.h:
* Use NS32K_DISPLACEMENT_P wherever suitable.
* make LEGITIMATE_PIC_OPERAND_P dtrt to make the ns32k_gen_operand hack
unnecessary.
ns32k.md:
* Use general_operand instead of ns32k_gen_operand everywhere.
* replace "rmn" by "g" again.
* make addsi3 dtrt for pic.
The comments in ns32k.md still need some updates.
Thank's again to Ian Dall for his help.
This commits several enhancements done over the last years:
- adddi3 subdi3 insn definitions: Jon Buller (ns32k.md, ns32k.c)
- ffssi2 adddi3 and subdi3 bug fixes: Matthias Pfaller (ns32k.c, ns32k.md)
- movstrsi reimplimentation: Ian Dall (ns32k.c, ns32k.md, ns32k.h)
- 32381 fpu support (extra registers, multiply - add instructions):
Ian Dall (ns32k.c, ns32k.h, ns32k.md)
- divmoddisi: (re) implimentation Ian Dall (ns32k.md)
- use predicate rather than register constraints to allow better code for
non pic case: Ian Dall (ns32k.md, ns32k.c)
- clean up of many macros in ns32k.h: Ian Dall
command line. This behaviour is how it's documented; it should work
that way. Also fixes building a release tree on a -current system (which
bit me with the sparc secr set I built for pk).
> don't try using P_tmpdir (from <stdio.h>, defined as "/var/tmp/" on
> NetBSD), or "/usr/tmp" for temp files - just use "/tmp".
> from ronald khoo in [bin/4224]
+ * stor-layout.c (layout_record): Ignore STRUCTURE_SIZE_BOUNDARY if
+ we are packing a structure. This allows a structure with only
+ bytes to be aligned on a byte boundary and have no padding on a
+ m68k.
Gcc used to create code to create trampolines (for nested functions) for
m68k without properly flushing the caches, leading to segmentation violations
on 68040/68060 systems.
Fixed by:
- importing the gcc 2.7.2.3 trampoline creation code into arch/m68k/m68k.h
- adding the OS-specific code for this into arch/m68k/netbsd.h
These changes have been reflected in gcc2netbsd.
- add /usr/include/objc to mtree
- set libobjc/Makefile INCSDIR=/usr/include/objc
- put to-be-installed includes to libobjc/Makefile into INCS=
- add the Objective-C source files to the appropriate lists.
- as the objc include files are installed now, no need to patch most
of the files.
- add /usr/include/obj/* to src/distrib/comp/mi
The changes have been applied to gcc2netbsd, and this script was then used
to create the new version of the files in libobjc/.
PIC support for GCC/arm.
This fix is untested on platforms other than the ARM and is only enabled
if GCC_27_ARM32_PIC_SUPPORT is defined.
These fixes are only required for GCC 2.7 and will not be needed in 2.8+
Norm Rubin and Richard Earnshaw.
PIC support for ARM will form part of the standard GCC tree from 2.8
onwards.
Also default to building soft-float as the resulting code will be a lot
faster then using emulated floating point instructions.
emit a call _cacheflush() to ensure Icache consistency
after writing trampoline code for lexical closures onto the stack
(i.e., into the Dcache).
GCC 2.x (x <= 7.2.2) emits a call cacehflush(), polluting the user
namespace.
memref_referenced_p(); otherwise there are cases where a later set that changes
the memory location may be moved too early, and thus the new value will be
(incorrectly) used where it should not be.
Added a new patch mechanism to gcc2netbsd so changes from the FSF source
are seen in gcc2netbsd. Sync some Makefiles to output of current gcc2netbsd.
(Cosmetic changes only to the Makefiles.)
support for shared libraries. Diffs from Manuel Bouyer, probably
derived from similar OpenBSD gcc diffs.
This change is in the source tree because it was used to build a NetBSD/pmax
shared-lib snapshot. The change isn't being integrated into the gcc2netbsd
script until the shared-lib diffs are finalized.
The NetbSD libc header files use GCC attributes to emit link-time warning
messages (e.g,. for gets()). SO, add a definition of the GCC back-end
macro ASM_OUTPUT_SECTION_NAME() to the mips back-end target-specific file.
This adds support for emitting warning attributes to binutils 2.6 or newer.
(Weak references may or may not work also).
This patch has been submitted to the FSF but hasn't made it into 2.7.2.1,
and seems to have got buried somewhere inside Cygnus.
Tue Feb 13 17:59:03 1996 Lee Iverson <leei@Canada.AI.SRI.COM>
* gcc.c (DEFAULT_SWITCH_TAKES_ARG): New macro, from SWITCH_TAKES_ARG.
(SWITCH_TAKES_ARG): Use it.
This change alows us to add support for the 'R' option in a way that
will minimize differences when it comes to merging a future FSF gcc
release into the NetBSD sources.
for kernel printf functions
- understand the db_printf %n,%r,%z format specifiers
- understand the kernel printf %: format specifier
- Be more permissive to %b arguments: accept any integer type, not only
unsigned ints.
long comparisons. As of this date, this change hasn't made it into
the development sources. We must consider this when it comes time
to integrate a newer gcc release.
Thu Mar 7 01:16:23 1996 J"orn Rennecke (amylaar@meolyon.hanse.de)
* expmed.c (negate_rtx): Don't negate LONG_MIN if mode is wider
than HOST_WIDE_INT.
gcc now produces worse code for this test case than gcc 2.5.8 when
invoked with -O , but it will optimize as good as gcc 2.5.8 (i.e. all
comparisons vanish) when invoked with -O2 , thus I think it doesn't
matter. If anyone is interested in looking into this, the code in
expr.c, function expand_expr, case MINUS_EXPR, if-clause for if
(TREE_UNSIGNED (type) || TREE_OVERFLOW (negated)), will refuse to
convert the subtraction into an addition if there is an overflow in
the conversion or negation of the constant. If both host and target
machine are binary computers with 2-complement representation, the
overflow should not matter.
*REMEMBER* Any change in the gcc tree should be reflected in the gcc2netbsd
script so it reflects reality! If you don't know how to change the
gcc2netbsd script, send your gcc changes to phil@netbsd.org.
