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freebsd-nq/sys/i386/svr4/svr4_locore.s

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Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#include "svr4_assym.h" /* system definitions */
#include <machine/asmacros.h> /* miscellaneous asm macros */
Cleanup after repo copy of sys/svr4 to sys/compat/svr4.
2000-08-31 22:54:09 +00:00
#include <compat/svr4/svr4_syscall.h> /* system call numbers */
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
/* $FreeBSD$ */
Add $Id$ tags. Clean-up some unused (or to-be-used) variables in svr4_getcontext()
1999-07-30 12:47:17 +00:00
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
NON_GPROF_ENTRY(svr4_sigcode)
AT&T asm syntax requires a leading '*' in front of the operand for indirect calls and jumps.
2000-05-10 01:21:15 +00:00
call *SVR4_SIGF_HANDLER(%esp)
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
leal SVR4_SIGF_UC(%esp),%eax # ucp (the call may have clobbered the
# copy at SIGF_UCP(%esp))
Back out last commit (did I get all of them?) Submitted by: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
1999-06-02 15:35:46 +00:00
#ifdef VM86
Include #warning about unconditionalizing VM86, which isn't supposed to work in the svr4 emulator yet.
2000-01-15 15:23:14 +00:00
#warning "VM86 doesn't work yet - do you really want this?"
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
testl $PSL_VM,SVR4_UC_EFLAGS(%eax)
jnz 1f
Back out last commit (did I get all of them?) Submitted by: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
1999-06-02 15:35:46 +00:00
#endif
Add a per-signal flag to mark handlers registered with osigaction, so we can provide the correct context to each signal handler. Fix broken sigsuspend(): don't use p_oldsigmask as a flag, use SAS_OLDMASK as we did before the linuxthreads support merge (submitted by bde). Move ps_sigstk from to p_sigacts to the main proc structure since signal stack should not be shared among threads. Move SAS_OLDMASK and SAS_ALTSTACK flags from sigacts::ps_flags to proc::p_flag. Move PS_NOCLDSTOP and PS_NOCLDWAIT flags from proc::p_flag to procsig::ps_flag. Reviewed by: marcel, jdp, bde
1999-10-11 20:33:17 +00:00
movl SVR4_UC_GS(%eax),%gs
1: pushl %eax # pointer to ucontext
pushl $1 # set context
Remove the leading underscore from all symbols defined in x86 asm and used in C or vice versa. The elf compiler uses the same names for both. Remove asnames.h with great prejudice; it has served its purpose. Note that this does not affect the ability to generate an aout kernel due to gcc's -mno-underscores option. moral support from: peter, jhb
2001-02-25 06:29:04 +00:00
movl $svr4_sys_context,%eax
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
int $0x80 # enter kernel with args on stack
Add a per-signal flag to mark handlers registered with osigaction, so we can provide the correct context to each signal handler. Fix broken sigsuspend(): don't use p_oldsigmask as a flag, use SAS_OLDMASK as we did before the linuxthreads support merge (submitted by bde). Move ps_sigstk from to p_sigacts to the main proc structure since signal stack should not be shared among threads. Move SAS_OLDMASK and SAS_ALTSTACK flags from sigacts::ps_flags to proc::p_flag. Move PS_NOCLDSTOP and PS_NOCLDWAIT flags from proc::p_flag to procsig::ps_flag. Reviewed by: marcel, jdp, bde
1999-10-11 20:33:17 +00:00
0: jmp 0b
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
Replace ".align 2" with "ALIGN_TEXT" as per recent discussion re: the linux emulator. Suggested by: bde
1999-08-25 22:55:56 +00:00
ALIGN_TEXT
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
svr4_esigcode:
.data
Remove the leading underscore from all symbols defined in x86 asm and used in C or vice versa. The elf compiler uses the same names for both. Remove asnames.h with great prejudice; it has served its purpose. Note that this does not affect the ability to generate an aout kernel due to gcc's -mno-underscores option. moral support from: peter, jhb
2001-02-25 06:29:04 +00:00
.globl svr4_szsigcode
svr4_szsigcode:
.long svr4_esigcode - svr4_sigcode
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
.text
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