Generate .ctors and .dtors sections which contain the contructor and
deconstructor function addresses.
Use .init and .fini sections to call the functions to call those functions.
Include the crtbegin and crtend object files which perform those calls.
maintainers which implements gnu c++ exception dynsums while
preserving compatiblity with Irix5 linker. (by no longer identyifying
particular sections that appear inside the .dynsym section).
1. Change linkspec to not pass -nostdlib to binutils ld, since on mips,
ld parses "-nostdlib" as a set of short options which produce
nonworking binaries.
2. Turn off ASM_OUTPUT_DEF definition: the egcs iris6.h says that
our old definition (from gcc 2.7.2.2 iris5.h isnt really whats
wanted here.
3. Turn off SET_ASM_OP (which defaults to .set) to stop
dwarf2out.c from emitting debug(?) info for C++ using ".set",
since both gas and mips as use .set to control assembler
optimizations, not for equating labels. From iris6.h.
and nonzero -G values are incompatible with PIC.
4. Set default GVALUE (for -G) to 0; this target always produces PIC
by default, and on mips, PIC is incompatible with `small' segment.
5. Set TARGET_DEFAULT to enable "-mdebuga" to defeat
GO_IF_LEGITIMATE_ADDRESS "smarts". GO_IF_LEGITIMATE_ADDRESS pretends
that mips supports an address mode of constant + register.
For constants larger than 16 bits, that relies on assembler fixups
via $at. egcs 1.1 (expr.c delta 1.76) may break up those addresses
such that the backend cannot output them as offsets in load or store
instructions anymore; no other patterns match so egcs coredumps.
[XXX not perfect since gotslot are allocated on a per-symbol basis but
not a per-symbol & addend tuple. This makes impossible to have separate
GOT entries to ___sF (stdin), ___sF+88 (stdout), and ___sF+176 (stderr)]
mips, which causes binutils-2.8.1 ld (also 2.9.1) to coredump due to
an unrecognized dynsym index.
add ".gcc_except_table" to the list of section names which can appear
in the .dynsym section of an elf-mips [irix5, sic] binary. Confirmed
to fix the coredump for both binutils 2.8.1 and 2.9.1 ld.
Patch from Castor Fu <castor@geocast.com>. Reported to bug-gnu-misc
with this patch, should appear in a future binutils release.
misfeatures with ELF on mips. Without this, gdb gets addresess in
shared-libraries wrong and reports `heuristic fencepost' error.
(cf. the special-case solib functions duplicated in irix5-nat.c.)
bfd.h is a generated file and may end up in the objdir, which might be
.../obj, might be .../obj.${MACHINE} (but what about crosscompilers?)
etc etc. It seems best to use the one installed in DESTDIR; I hope
a DESTDIR setting is required for crosstool builds.
Add argument to md_fix_jmpslot indicating whether this the first (i.e
tranfer) jmpslot or not. Add better support for VAX (the VAX can support
pure text code; let ld that advantage of it). Checking in verified and
working versions of rtld VAX support routines.
