2003-03-14 Jason Thorpe <thorpej@wasabisystems.com>
* c-decl.c (flag_hosted): Move from here...
* toplev.c: ...to here.
* c-tree.h (flag_hosted): Move extern declaration from here...
* flags.h: ...to here.
* config/alpha/alpha.c (alpha_initialize_trampoline): Only
emit a call to __enable_execute_stack if flag_hosted is true.
* config/i386/i386.c (x86_initialize_trampoline): Likewise.
* config/sparc/sparc.c (sparc_initialize_trampoline)
(sparc64_initialize_trampoline): Likewise.
An updated version of this will be submitted to gcc.gnu.org.
(*mulsi3_compare0, *mulsi_compare0_scratch, *mulsi3addsi_compare0,
*mulsi3addsi_compare0_scratch): Predicate on !arm_is_xscale.
(mulhisi3, *mulhisi3addsi, *mulhidi3adddi): New patterns, predicated
on arm_is_xscale.
by the FSF binutils maintainers, who instead suggested a different way
of addressing the problem.
(Besides, the size adjustment code was broken by the binutils update,
since about 1/2 of the changes got lost.)
(and associated targets for .dvi et al), as well as man pages from .pod,
using a prefix of `# '.
This prevents a variety of build issues caused by situations such as
cvs checkouts which result in the .texinfo file being slightly newer
than the .info file, and the build process trying to unnecessarily
regenerate them, which will fail in a variety of circumstances
(build tools not available, read-only source, etc ...)
Once a better solution is found, we can switch to it.
For now, this improves things greatly and should reduce a lot of
support requests that would undoubtably appear otherwise...
threads. This is useful for a variety of things, including examing the
internal state of the thread library when things are going wrong
there.
Currently only works on core files; both ptrace and gdb will need a
bit more work before this will be useful on live processes.
Inspired by the similar behavior of the Solaris thread module.
not overlap our final result register.
Fixes problem that causes Metafont in teTeX to crash.* arm.c (arm_reload_in_hi): Ensure that the scratch register does
not overlap our final result register.
Fixes problem that causes Metafont in teTeX to crash.
<http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/?cvsroot=src>
to fix relocation problem on linking startup routines for sh3:
src/bfd/elf32-sh.c revision 1.36:
> * elf32-sh.c (sh_elf_howto_table, R_SH_REL32): Make
> partial_inplace, matching assembler output. Set src_mask to
> all ones.
> (sh_elf_relocate_section): Delete misplaced comment.
> For relocatable linking against section symbol, call
> _bfd_relocate_contents for partial_inplace relocs and adjust
> rel->r_addend for others.
> <case R_SH_DIR32, R_SH_REL32>: Fetch partial_inplace addend with
> bfd_get_32, not at rel->r_addend.
src/gas/config/tc-sh.c revision 1.43:
> * config/tc-sh.c (md_pcrel_from_section): Transformed from
> md_pcrel_from. Handle pc-relativeness against link-time
> symbol. Handle relativeness to elsewhere than the fixup.
src/gas/config/tc-sh.h revision 1.14:
> * config/tc-sh.h (MD_PCREL_FROM_SECTION): Define.
> (md_pcrel_from_section): Prototype.
Thanks to Kaz Kojima and Jason R Thorpe for their comments.
especially when you follow using non-POSIX vfork()
defining _POSIX_SOURCE means "POSIX clean environment", which means
(besides other things) that we won't get proper definition of e.g.
vfork() and end up with the compatibility stub
* If -pthread is specified, add -lpthread and -D_PTHREADS.
More thread support to come; this is just a start (sigh, it's
handled so much nicer in 3.3...).
Background:
Originally, the EH labels were placed on the permanent obstack, which
could end up using a lot of memory (for heavy inlining) since inlined
labels also needed to be permanent as a result of this.
This was changed in
Wed Dec 9 09:12:40 1998 Andrew MacLeod <amacleod@cygnus.com>
* except.h (struct handler_info): Add handler_number field.
* except.c (gen_exception_label): EH labels no longer need to be
on the permanent obstack.
(get_new_handler): Set the label number field.
(output_exception_table_entry): Regenerate handler label reference
from the label number field.
(init_eh): Remove a blank line.
* integrate.c (get_label_from_map): Labels no longer need to be
on the permanent obstack.
by using the label numbers instead of the label structures in most cases.
The operative word here is "most" cases. Addresses to the EH RTX was still
used in (at least) flow.c, that now used freed memory. Oops.
For this to happen, the freed address of the RTX representing a EH label
must be reused for a new label that is located in dead code. delete_block()
will then see that this RTX is mentioned in the EH table, and (incorrectly)
remove the exception handler.
This might be seen when, for example, compiling
src/gnu/dist/groff/src/roff/troff/node.cc for m68k.
mycroft