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111 Commits

Author SHA1 Message Date
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perry 4e11af46bc Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete. 2005-12-24 21:11:15 +00:00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
petrov 2cae323122 Use branch-slot in STACK_SWITCH, suggested by Martin Husemann. 2003-08-25 23:00:23 +00:00
petrov c139cd4893 Use correct context to switch to. 2003-08-25 22:48:24 +00:00
ragge 644236bf71 Add PT_TRAPUC and pthread__switch_return_point. 
Not tested (as most of the pthread stuff on vax) but at least
allow the system to compile.
 2003-08-25 20:32:13 +00:00