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114 Commits

Author SHA1 Message Date
ross
1a70c2f1e4 Err, restore the name of pthread__switch_return_point, it is 
referenced from C code.
 2006-07-09 01:07:38 +00:00
ross
a228aa3de2 Revise for LP64. 
Encapsulate previously copied code sections into macros.
 2006-07-08 05:09:44 +00:00
ross
032dc727f7 remove unreferenced temporary label 2006-07-08 05:04:49 +00:00
cube
562d0d89a2 Instead of using hard-coded values for various registers, get them from the 
current context.  Valid values can change depending on how the kernel is
setup.  i386 and amd64 happen to be setup differently.
 2006-03-29 22:55:15 +00:00
skrll
2b3543128f I was a bit over zealous with my last change so revert the 
locked_return_point change.

Loading the instruction at locked_return_point as a return value didn't
work so well.

Thanks to uwe, cube, and dsl.
 2006-01-09 22:17:16 +00:00
uwe
6b8eb49dd6 Use PLT for PIC calls to avoid text relocs in the shared library. 2006-01-06 22:46:14 +00:00
uwe
55ad9313a6 In PIC code call setcontext(2) via PLT to avoid text reloc in the 
shared library.
 2006-01-04 17:44:53 +00:00
skrll
73b7bdcee7 A couple of fixes to make libpthread really shared, i.e. not have text re- 
locations:

	- Don't declare pthread__switch_away global
	- Do the PIC dance for pthread__switch_return_point and
	  pthread__locked_switch. Ideally these (and other) symbols would
	  be hidden.

Thanks to uwe@, dyoung@ and elad@ for help.

XXX sh3 is still to be done.
XXX vax does strange things.
 2006-01-04 12:43:43 +00:00
uwe
ffaa72c2cc Adapt to new PIC macros that are now in <machine/asm.h>. Same binary 
code is generated (still with text relocs, but eliminating them is the
next step).
 2005-12-31 05:08:28 +00:00
perry
ce666bb8ce __asm__ -> __asm 2005-12-24 23:10:08 +00:00
perry
4e11af46bc Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete. 2005-12-24 21:11:15 +00:00
matt
38b7b2fcde Merge updates to algorithms from i386 switch code. 2005-04-09 20:53:19 +00:00
matt
7fa678813d Add STACKSPACE 2005-04-09 20:50:27 +00:00
matt
e722e50c79 Rework and cleanup. Don't use REI, fake a call frame instead. 2005-04-09 20:49:02 +00:00
skrll
32069ca6a3 pt_sleepuc was removed a long time ago. 2004-12-01 14:27:01 +00:00
nathanw
45204d9ceb Punt to setcontext() system call if the PSL_T bit (single-step trap) 
is set, so that the single-step trap happens in the thread's context
and not in the middle of _setcontext_u.

XXX might be able to do something here with iret, too, but it needs
more testing.
 2004-11-30 21:05:01 +00:00
kent
63a8cde231 save&restore %fs and %gs registers for USER_LDT applications. 
PR#26900
 2004-11-10 01:12:57 +00:00
fvdl
5febc5eef5 Fix thread context switching to take the stack ABI into account. 
From Wolfgang Solfrank.
 2004-10-21 16:49:47 +00:00
rearnsha
cd8021f51e Use RET macro for returning. 2004-08-21 11:31:44 +00:00
chs
e348d7e175 add hppa MD libpthread bits. translated from MIPS. 2004-07-19 03:39:02 +00:00
nathanw
cb111b5e34 When _SOFT_FLOAT is defined, don't save or restore user FP context. 
(note: still needs some mk rules tweaking for MKSOFTFLOAT=yes to pass
-msoft-float to asm builds).
 2004-07-10 20:57:00 +00:00
nathanw
821dde500e Fix a comment to say "Edit" instead of "Exit". 2004-07-07 18:21:33 +00:00
simonb
b4f0be566a Catch up with changes to __fpregset_t. 
In __longjmp14(), copy the FP CSR from the correct array and array slot.

Completes fix for PR port-mips/25942.
 2004-07-03 05:10:06 +00:00
nathanw
44a1e00a08 Remove a comment made obsolete by the previous commit. 2004-06-02 22:39:52 +00:00
uwe
521748fbfa Fix typo in comment. 2004-05-28 22:58:25 +00:00
simonb
9bc855a931 s/the the/the/ (only in sources that aren't regularly imported from 
elsewhere).
 2004-04-23 02:58:27 +00:00
nathanw
94fc83a6be Add ucontext conversion macros for an "extra" register set. 2004-02-11 21:04:10 +00:00
he
ea56bcee84 Hide the register number constants behind an _R_ prefix, and also 
rename FPBASE to _FPBASE, so that we avoid polluting the user's
name space when e.g. <sys/ptrace.h> is included.  Previously, the
PC symbol in mips/regnum.h would conflict with the declaration of
the external variable by the same name in termcap.h, as discovered
by the ``okheaders'' regression test.
 2003-11-26 08:36:49 +00:00
christos
adfca9e3e4 This is not needed anymore. 2003-11-25 22:41:12 +00:00
christos
6477735848 m68k does not sigcontext<->mcontext anymore. 2003-11-25 21:27:30 +00:00
uwe
6d08061385 Do not move incoming paramters to callee-save registers when not 
necessary.  Saves about a dozen of instructions.
 2003-11-20 17:55:11 +00:00
uwe
b3c165e505 Add _INITCONTEXT_U_MD, we need to clean _REG_SR. 2003-11-20 17:38:08 +00:00
uwe
1e78682585 In pthread__locked_switch set self->pt_uc only when the context is inited. 
In STACK_SWITCH subtract STACKSPACE, not add it (it's zero for now anyway).
 2003-11-20 03:31:02 +00:00
uwe
024d461f8f First cut at pthreads MD code for sh3. Based on m68k version. 
Regression tests still failing: sem, sigalarm.
 2003-11-18 03:11:41 +00:00
uwe
f9cb911365 Add necessary symbols. 2003-11-18 03:07:29 +00:00
uwe
764c596c3f Cause SIGTRAP if NOTREACHED code is reached. 2003-11-17 22:38:11 +00:00
martin
3e8ef3d56a Fix ucontext conversion macros. From Christian Limpach. 2003-11-11 16:21:05 +00:00
martin
d708163f7f All the ucontext <-> {fp}reg macros were slightly simplistic and untested 
before (old gdb support on sparc did not use this).
Pointed out by Christian Limpach.
 2003-11-10 07:52:52 +00:00
fvdl
c4e432f3bd Make register usage more consistent, also in comparison with the i386 
version, for easier maintenance.
 2003-11-08 21:46:42 +00:00
fvdl
127827f46e Restore %rax correctly during a full context restore (oops). 2003-11-08 21:45:59 +00:00
yamt
71b290e975 use explicit "l" suffixes. (eg. lea -> leal) 2003-10-30 13:56:37 +00:00
fvdl
c2405107f1 Correct and simplify computing the return point; just use PC-relative 
addressing.
 2003-10-20 14:50:18 +00:00
fvdl
b30e737545 Make sure the stack stays aligned. 2003-10-19 21:45:03 +00:00
chs
f58c80fc8f fix typo in previous. 2003-10-12 00:25:25 +00:00
cl
bfa716044e SA_SIGINFO support for m68k (libpthread) 2003-09-22 14:45:48 +00:00
cl
c6de69ee49 fix pt_trapuc handling errors: 
- movl to address register doesn't set flags (add explicit test)
- clr only clears a word (use clrl)
 2003-09-17 20:08:07 +00:00
cl
89d0cfd21f Remove possible race condition in upcall recycling. 2003-09-07 14:47:44 +00:00
uwe
b5623b232f Use delay slot in STACK_SWITCH (catching up with sparc64 changes). 2003-09-07 02:08:31 +00:00
uwe
7d522ba08b Use correct context to switch to. 
From sparc64 fix by Andrey Petrov <petrov@netbsd>.
 2003-09-07 01:54:47 +00:00
petrov
0d472e116b typo in previous commit, annul isn't good there, 
noticed by Eduardo Horvath.
 2003-08-26 17:50:06 +00:00