ec119e1084
Minor improvement to H8 startup code
...
Basically the startup code needs to clear memory from _edata to _end. In the
past it's been done with a fairly naive copy loop. This changes the code to
just call memset and let memset figure out a sensible way to handle the
operation given the size and alignment requirements.
I don't have performance data on this. I cobbled it together some time ago in
response to seeing some of the GCC tests with larger .bss sections taking an
insane amount of time to just get from _start to main. With the fixes to the
H8 decoder in the simulator it may not matter nearly as much anymore.
This has been in my tester for months. Naturally it does not cause any
regressions in the H8 port.
2023-12-31 09:08:21 -07:00
9a6831be86
2003-07-02 Richard Sandiford <rsandifo@redhat.com>
...
* libc/machine/h8300/Makefile.am (lib_a_SOURCES): Add h8sx_strcpy.S.
* libc/machine/h8300/defines.h (LEN): New macro.
* libc/machine/h8300/memcpy.S: Add h8sx version.
* libc/machine/h8300/memset.S: Likewise.
* libc/machine/h8300/strcmp.S: Likewise.
* libc/machine/h8300/setjmp.S: Use h8sx move instructions.
* libc/machine/h8300/h8sx_strcpy.S: New file.
2003-06-30 Richard Sandiford <rsandifo@redhat.com>
* libc/include/machine/ieeefp.h: Extend __H8300S__ handling to
__H8300SX__.
* libc/include/machine/setjmp.h: Likewise.
* libc/include/sys/config.h: Likewise.
* libc/machine/h8300/defines.h: Likewise.
* libc/machine/h8300/setjmp.S: Likewise.
* libc/machine/h8300/strcmp.S: Likewise.
* libc/sys/h8300hms/close.S: Likewise.
* libc/sys/h8300hms/fstat.S: Likewise.
* libc/sys/h8300hms/lseek.S: Likewise.
* libc/sys/h8300hms/read.S: Likewise.
* libc/sys/h8300hms/write.S: Likewise.
* libc/sys/h8300hms/crt0.S: Likewise.
* libc/machine/h8300/setarch.h: Use .h8300sx or .h8300sxn if
__H8300SX__ is defined.
* libc/sys/h8300hms/setarch.h: Likewise.
2004-06-22 21:54:52 +00:00
6d7ea52a26
* libc/sys/h8300hms/crt0.S (_start): Fix register sizes in call
...
to atexit().
2003-06-24 18:13:35 +00:00
d9e4104b31
* libc/sys/h8300hms/setarch.h: New file.
...
* libc/sys/h8300hms/close.S, libc/sys/h8300hms/fstat.S,
libc/sys/h8300hms/lseek.S, libc/sys/h8300hms/open.S,
libc/sys/h8300hms/read.S, libc/sys/h8300hms/stat.S,
libc/sys/h8300hms/write.S, libc/sys/h8300hms/crt0.S: Use it.
2003-06-10 07:44:30 +00:00
82095e79cf
2003-05-28 Dhananjay Deshpande <dhananjayd@kpitcummins.com>
...
* newlib/libc/machine/h8300/memcpy.S: Use .h8300hn and .h8300sn for
normal mode
* newlib/libc/machine/h8300/memset.S: Likewise
* newlib/lib/machine/h8300/reg_memcpy.S: Likewise
* newlib/lib/machine/h8300/reg_memset.S: Likewise
* newlib/lib/machine/h8300/setjmp.S: Likewise
* newlib/lib/machine/h8300/strcmp.S: Likewise
* newlib/lib/sys/h8300hms/crt0.S: Likewise
2003-05-28 18:00:17 +00:00
e65d559e71
2003-03-18 D.Venkatasubramanian <dvenkat@noida.hcltech.com>
...
* libc/include/sys/h8300hms/crt0.S[__SIMULATOR__]: Add commandline
support.
* configure.host (h8300*-*-*): Added comment regarding -D__SIMULATOR__
flag to support simulator only extensions.
2003-03-18 20:38:04 +00:00
b85498d44c
2003-01-31 Michael Snyder <msnyder@redhat.com>
...
* libc/sys/h8300hms/crt0.S (_start): Change local label
from .loop to .Loop, so that ld and gdb will ignore it.
2003-01-31 20:35:24 +00:00
b2d319cb3e
2001-09-07 Jeff Law <law@redhat.com>
...
* libc/sys/h8300hms/crt0.S: For H8/300H and H8/S, load address of
__fini with "mov.l" instead of "mov.w".
2001-09-07 18:21:33 +00:00
63c17b5426
2001-09-04 Jason Merrill <jason_merrill@redhat.com>
...
* libc/sys/h8300hms/crt0.S: Support ELF initialization.
2001-09-04 19:05:44 +00:00
4ba9aab779
2000-08-30 Kazu Hirata <kazu@hxi.com>
...
* libc/sys/h8300hms/crt0.S: Optimize for both speed and code size.
2000-08-30 22:17:17 +00:00
8a0efa53e4
import newlib-2000-02-17 snapshot
2000-02-17 19:39:52 +00:00
Jeff Law
Alexandre Oliva
Richard Sandiford
Jeff Johnston
Christopher Faylor