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f768a5c42b
Commit Graph

317 Commits

Author SHA1 Message Date
scw
f768a5c42b Reduce the alignment constraint from 4 to 2. This fixes the problem where 
gas(2) pads the text segment with 0x0 instead of NOP. Since m68k instructions
only need 16-bit alignment, .align 2 works just fine.
 2001-10-13 09:21:50 +00:00
kristerw
031a62292d Run the entries in __CTOR_LIST__ and __DTOR_LIST__ in the order gcc expect. 2001-10-11 18:02:28 +00:00
matt
eef4b63246 Make __start global. 2001-09-08 18:59:20 +00:00
bjh21
751e6fa590 Ensure that the stack is aligned to an 8-byte boundary before calling C code. 
(ATPCS B-01)
 2001-08-17 00:14:38 +00:00
simonb
9a68629ca6 Enlarge the stack frame to 16 bytes, and store the return address 8 
bytes in instead of at the start, to leave room for a .cpload to store
the gp at offset 0 in the frame.  Allow 8 bytes for each (for mips64
one day...).

.cpload overwrite problems noted by Michael Hitch.
 2001-08-16 03:44:46 +00:00
matt
ee6a16ad18 Add a secondary label called __start (makes gcc 2.95.3 happier) and rename 
the internal __start to ___start.   (Since -e is not supplied by default,
this has no effect on a native build.)
 2001-08-05 00:01:27 +00:00
thorpej
102df4197d Enable DWARF2 EH support. Confirmed working w/ GCC 2.95.3 on sparc 
and i386.
 2001-08-03 14:26:13 +00:00
thorpej
a6855eea24 Add support for DWARF2 frame unwinding/exception handling. This 
should be sufficient for GCC 2.95.3, and probably GCC 3.0 as well.

Not yet enabled by default; further testing required.
 2001-08-03 05:54:43 +00:00
wiz
e11d04474c issueing -> issuing 2001-07-26 22:55:12 +00:00
tsubai
1278735b51 .init/.fini support. 2001-07-23 20:43:31 +00:00
bjh21
71d647ec7a The common arm_elf code seems to work on arm26, so use that. 2001-07-20 13:01:13 +00:00
simonb
19211890ff Enable dot_init.h on mips, fixing .init & .fini processing. 2001-07-18 04:43:48 +00:00
mrg
6bea810c23 enable dot_init.h on both sparc & sparc64, fixing .init & .fini processing 
for both platforms.  they share dot_init.h with a single #ifdef #define
difference...
 2001-07-17 18:25:11 +00:00
simonb
1bc139fd41 Add but not enable correct .init/.fini handling. 2001-07-17 15:20:23 +00:00
mrg
f4bd34ec5f add but not enable correct .init/.fini handling. 2001-07-17 13:32:35 +00:00
mrg
ff68bb147c minor KNF 2001-07-17 13:28:05 +00:00
tsubai
4a0b75d5d2 Add the new .init/.fini support. 2001-07-17 12:16:43 +00:00
matt
119c72fb96 Add new init/fini to VAX ELF. 2001-07-17 06:45:46 +00:00
matt
ae9f64ff3b Turn-on new init/fini processing. 2001-07-17 06:39:14 +00:00
thorpej
4abcdae85e Enable the new (working) .init/.fini magic. 2001-07-17 03:56:48 +00:00
matt
126898a2cd Initial CSU for ARM with shared ELF. 2001-07-15 17:29:00 +00:00
fvdl
a84b13f43f CSU for x86-64 port. 2001-06-19 00:49:06 +00:00
mrg
f59b9e737f set FILESDIR to "${LIBDIR}", not hard coded /usr/lib. 2001-06-07 15:22:49 +00:00
fredette
e80c95ddb2 Don't use an EA with a scaled index, it isn't supported on the 68000. 2001-05-17 21:21:07 +00:00
fredette
872a39428c Don't compile with -fPIC when MACHINE_ARCH is m68000. 2001-05-17 21:17:02 +00:00
kleink
7bd28edec7 Add, but do not yet enable, m68k code for .init and .fini section fallthroughs. 2001-05-12 00:17:55 +00:00
ross
2d62241cb9 Reorganization of crtbegin/crtend. 
o  Primary mod: alpha and i386 code for .init and .fini section fallthroughs
o  Actual fallthru is not yet enabled, see csu/{alpha,i386_elf}/Makefile
o  When enabled, should fix bin/12865 & should fix at least one WINE bug,
   see http://www.winehq.com/hypermail/wine-devel/2001/05/0021.html
o  Also, removed the function pointer hack put in to prevent gcc from
   incorrectly attempting to do short calls over section boundaries,
   on some architectures, rather, simply simply move ctors() and dtors()
   into .init and .fini.
Other notes.
o  Our crtbegin.c and crtend.c were completely in C, despite
   the fact that .init and .fini section fallthroughs require machine code.
   These modules implement the gnu ctors/dtors mechanism directly, eliminating
   in part the need for the elf .init/.fini section fallthrough. However,
   if we ever want to use the gnu-provided constructor support, we need to
   do the fallthrough, at least one program (WINE) apparently uses the
   feature independently, and other compilers may depend on the mechanism.
o  It is amusing that the previous NetBSD _init() and _fini() were put
   into the .init and .fini sections, because nothing is gained over
   plain .text if they don't fall through. Cargo cult!
o  Other elf ports will need to copy the alpha and i386 example mods.
 2001-05-11 22:44:14 +00:00
bjh21
0113cca535 Our ARM ELF ld(1) currently has problems with PIC relocations, so don't 
generate them.  I suspect this is safe until we get PIC in general working.
 2001-04-28 17:32:33 +00:00
msaitoh
581638d47c check __LEADING_UNDERSCORE 2001-02-25 15:51:24 +00:00
eeh
6a9224a06d Remove old compatibility hack. Should no longer be needed. 2001-02-21 00:47:21 +00:00
simonb
71c90eeec6 ANSIfy and merge some stylistic changes from arm26/crt0.c. 
No functional changes.
 2001-02-18 23:03:34 +00:00
simonb
5df49e36f3 Fix typo. 2001-02-18 23:01:39 +00:00
bjh21
015575c577 Use _C_LABEL rather than _C_FUNC. 2001-02-03 16:25:26 +00:00
enami
0ebf8f7f72 - Fix typo 
- Wrap long line
 2001-01-10 13:20:17 +00:00
itojun
99b0df5333 use MACIHNE_CPU to determine architecture-dependent source code directory. 
is use of exists(foo) safe enough?
TODO: many other places to fix
 2001-01-08 08:29:59 +00:00
itojun
264cf8dcf3 sh3 split 2001-01-04 08:01:49 +00:00
mycroft
94581370f5 The ELF ABI declares that argc must fill an `argument slot'. Make it so. 
For __sparc_v9__ only, do a hack to make executables work temporarily before
and after the kernel is switched.
 2000-07-26 15:40:07 +00:00
mycroft
209e309de1 Always dereference argc as an int. 2000-07-26 02:11:44 +00:00
mycroft
0ef3f52396 Make this work before and after the kernel is switched to DTRT with argc. 
This is temporary, only to make the flag day less painful.
 2000-07-25 21:42:55 +00:00
eeh
f310f1fd32 Handle dynamic binaries too. 2000-07-18 22:35:45 +00:00
matt
d71ca2d66e __syscall takes a quad_t as its first argument, not an int. 
_strrchr takes an int (due to promotion) as its third arg.
don't print the null byte at the end of string.
error messages should end with a linefeed.
 2000-07-03 23:01:01 +00:00
matt
06f872af34 Use the ___start etc. 2000-07-03 03:56:56 +00:00
christos
3d65200a80 remove initialization of mainprog_obj from here; it is too late for .ini 
sections that want to use dlopen(3).
 2000-06-16 20:52:49 +00:00
cgd
c39575e265 sweep of my licenses for consistency. (no functional changes) These 
files have copyright held by people in addition to myself.  (I did the
original work, they copied it, enhanced it, and added their copyright
to the derivative work.)  Their approval has been given re: the license
change.
 2000-06-15 16:48:28 +00:00
cgd
c85d2eb42b sweep of my licenses for consistency. (no functional changes) These 
files have copyright held by people in addition to myself.  (I did the
original work, they copied it, enhanced it, and added their copyright
to the derivative work.)  Their approval has been given re: the license
change.
 2000-06-14 22:52:37 +00:00
cgd
db755e7c76 sweep of my licenses (userland files w/o only my copyright) for 
consistency.  (no functional changes)
 2000-06-14 17:24:02 +00:00
thorpej
193ccba813 Normalize copyright notice. 2000-06-14 16:09:54 +00:00
cgd
d220ca5ba3 fix up NetBSD RCS Ids to match the standard, and the leading comment as 
to match as well.  No functional changes.
 2000-06-14 06:48:47 +00:00
bjh21
6c97e2bd78 Initial commit of arm26 port 2000-05-09 21:55:44 +00:00
dmcmahill
7348e432f3 change -fpic to -fPIC. Among other things this will let sparc shared 
c++ libraries built with pkglibtool (which uses -fPIC) work.
change approved by mycroft.
 2000-04-29 17:42:46 +00:00