Mercurial > hg > xemacs-beta
view src/ppc.ldscript @ 1268:fffe735e63ee
[xemacs-hg @ 2003-02-07 11:50:50 by ben]
fixes for menu crashes + better preemption behavior
This contains two related changes:
(1) Fix problems with reentrant calling of lwlib and associated
crashes when selecting menu items.
(2) Improve redisplay handling of preemption. Turn on lazy lock
and hold down page-down or page-up and you'll see what I mean.
They are related because they both touch on the code that retrieves
events and handles the internal queues.
console-msw.h, event-msw.c, event-stream.c, events.h, menubar-msw.c, menubar-x.c, menubar.h: mswindows_protect_modal_loop() has been generalized to
event_stream_protect_modal_loop(), and moved to event-stream.c.
mswindows_in_modal_loop ->in_modal_loop likewise. Changes in
event-msw.c and menubar-msw.c for the new names and calling format
(use structures instead of static variables in menubar-msw.c).
Delete former in_menu_callback and use in_modal_loop in its place.
Remove emacs_mswindows_quit_check_disallowed_p(), superseded by
in_modal_loop. Use event_stream_protect_modal_loop() in
pre_activate_callback() so that we get no lwlib reentrancy.
Rearrange some of the code in event-msw.c to be grouped better.
Make mswindows_drain_windows_queue() respect in_modal_loop and
do nothing if so.
cmdloop.c, event-stream.c: Don't conditionalize on LWLIB_MENUBARS_LUCID when giving error when
in_modal_loop, and give better error.
event-Xt.c, event-gtk.c: If in_modal_loop, only retrieve process and timeout events.
Don't retrieve any X events because processing them can lead
to reentrancy in lwlib -> death.
event-stream.c: Remove unused parameter to check_event_stream_ok() and change
all callers.
lisp.h, event-stream.c: Rearrange some functions for increased clarity -- in particular,
group all the input-pending/QUIT-related stuff together, and
put right next to next-event stuff, to which it's related.
Add the concept of "HOW_MANY" -- when asking whether user input
is pending, you can ask if at least HOW_MANY events are pending,
not just if any are. Add parameter to detect_input_pending()
for this. Change recursive_sit_for from a Lisp_Object (which
could only be Qt or Qnil) to an int, like it should be.
event-Xt.c, event-gtk.c, event-xlike-inc.c: New file.
Abstract out similar code in event_{Xt/gtk}_pending_p() and write
only once, using include-file tricks. Rewrite this function to
implement HOW_MANY and only process events when not in_modal_loop.
event-msw.c: Implement HOW_MANY and only process events when not in_modal_loop.
event-tty.c: Implement HOW_MANY.
redisplay.c: Add var `max-preempts' to control maximum number of preempts.
(#### perhaps not useful) Rewrite preemption check so that,
rather than preempting when any user events are available, only
preempt when a certain number (currently 4) of them are backed up.
This effectively allows redisplay to proceed to completion in the
presence of a fast auto-repeat (usually the auto-repeating is
generated dynamically as necessary), and you get much better
display behavior with lazy-lock active.
event-unixoid.c: Comment changes.
event-stream.c: Rewrite discard-input much more simply and safely using the
drain-queue functions. I think the old version might loop
forever if called when in_modal_loop.
SEMI-UNRELATED CHANGES:
-----------------------
event-stream.c: Turn QUIT-checking back on when running the pre-idle hook so it
can be quit out of.
indent.c: Document exact functioning of `vertical-motion' better, and its
differences from GNU Emacs.
| author | ben |
|---|---|
| date | Fri, 07 Feb 2003 11:50:54 +0000 |
| parents | 3ecd8885ac67 |
| children |
line wrap: on
line source
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") OUTPUT_ARCH(powerpc) ENTRY(_start) SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/powerpc-unknown-linux-gnulibc1/lib); /* Do we need any of these for elf? __DYNAMIC = 0; */ PROVIDE (__stack = 0); SECTIONS { /* Read-only sections, merged into text segment: */ . = 0x01800000 + SIZEOF_HEADERS; .interp : { *(.interp) } .hash : { *(.hash) } .dynsym : { *(.dynsym) } .dynstr : { *(.dynstr) } .gnu.version : { *(.gnu.version) } .gnu.version_d : { *(.gnu.version_d) } .gnu.version_r : { *(.gnu.version_r) } .rela.text : { *(.rela.text) *(.rela.gnu.linkonce.t*) } .rela.data : { *(.rela.data) *(.rela.gnu.linkonce.d*) } .rela.rodata : { *(.rela.rodata) *(.rela.gnu.linkonce.r*) } .rela.got : { *(.rela.got) } .rela.got1 : { *(.rela.got1) } .rela.got2 : { *(.rela.got2) } .rela.ctors : { *(.rela.ctors) } .rela.dtors : { *(.rela.dtors) } .rela.init : { *(.rela.init) } .rela.fini : { *(.rela.fini) } .rela.bss : { *(.rela.bss) } .rela.plt : { *(.rela.plt) } .rela.sdata : { *(.rela.sdata) } .rela.sbss : { *(.rela.sbss) } .rela.sdata2 : { *(.rela.sdata2) } .rela.sbss2 : { *(.rela.sbss2) } .text : { *(.text) /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) *(.gnu.linkonce.t*) } =0 .init : { *(.init) } =0 .fini : { *(.fini) } =0 .rodata : { *(.rodata) *(.gnu.linkonce.r*) } .rodata1 : { *(.rodata1) } _etext = .; PROVIDE (etext = .); .sdata2 : { *(.sdata2) } .sbss2 : { *(.sbss2) } /* Adjust the address for the data segment. We want to adjust up to the same address within the page on the next page up. It would be more correct to do this: . = .; The current expression does not correctly handle the case of a text segment ending precisely at the end of a page; it causes the data segment to skip a page. The above expression does not have this problem, but it will currently (2/95) cause BFD to allocate a single segment, combining both text and data, for this case. This will prevent the text segment from being shared among multiple executions of the program; I think that is more important than losing a page of the virtual address space (note that no actual memory is lost; the page which is skipped can not be referenced). */ . = .; .data : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS } .data1 : { *(.data1) } .got1 : { *(.got1) } .dynamic : { *(.dynamic) } /* Put .ctors and .dtors next to the .got2 section, so that the pointers get relocated with -mrelocatable. Also put in the .fixup pointers. The current compiler no longer needs this, but keep it around for 2.7.2 */ PROVIDE (_GOT2_START_ = .); .got2 : { *(.got2) } PROVIDE (__CTOR_LIST__ = .); .ctors : { *(.ctors) } PROVIDE (__CTOR_END__ = .); PROVIDE (__DTOR_LIST__ = .); .dtors : { *(.dtors) } PROVIDE (__DTOR_END__ = .); PROVIDE (_FIXUP_START_ = .); .fixup : { *(.fixup) } PROVIDE (_FIXUP_END_ = .); PROVIDE (_GOT2_END_ = .); PROVIDE (_GOT_START_ = .); .got : { *(.got) } .got.plt : { *(.got.plt) } PROVIDE (_GOT_END_ = .); /* We want the small data sections together, so single-instruction offsets can access them all, and initialized data all before uninitialized, so we can shorten the on-disk segment size. */ .sdata : { *(.sdata) } _edata = .; PROVIDE (edata = .); .sbss : { } .bss : { PROVIDE (__sbss_start = .); *(.sbss) *(.scommon) PROVIDE (__sbss_end = .); PROVIDE (__bss_start = .); *(.dynbss) *(.bss) *(COMMON) } _end = . ; PROVIDE (end = .); /* These are needed for ELF backends which have not yet been converted to the new style linker. */ .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } /* DWARF debug sections. Symbols in the DWARF debugging sections are relative to the beginning of the section so we begin them at 0. */ /* DWARF 1 */ .debug 0 : { *(.debug) } .line 0 : { *(.line) } /* GNU DWARF 1 extensions */ .debug_srcinfo 0 : { *(.debug_srcinfo) } .debug_sfnames 0 : { *(.debug_sfnames) } /* DWARF 1.1 and DWARF 2 */ .debug_aranges 0 : { *(.debug_aranges) } .debug_pubnames 0 : { *(.debug_pubnames) } /* DWARF 2 */ .debug_info 0 : { *(.debug_info) } .debug_abbrev 0 : { *(.debug_abbrev) } .debug_line 0 : { *(.debug_line) } .debug_frame 0 : { *(.debug_frame) } .debug_str 0 : { *(.debug_str) } .debug_loc 0 : { *(.debug_loc) } .debug_macinfo 0 : { *(.debug_macinfo) } /* SGI/MIPS DWARF 2 extensions */ .debug_weaknames 0 : { *(.debug_weaknames) } .debug_funcnames 0 : { *(.debug_funcnames) } .debug_typenames 0 : { *(.debug_typenames) } .debug_varnames 0 : { *(.debug_varnames) } /* These must appear regardless of . */ }
