freebsd-dev/sys/amd64/linux32/linux32_locore.s
Jung-uk Kim 9c5b213e51 MFP4: Linux set_thread_area syscall (aka TLS) support for amd64.
Initial version was submitted by Divacky Roman and mostly rewritten by me.

Tested by:	emulation
2007-03-30 00:06:21 +00:00

42 lines
1.1 KiB
ArmAsm

/* $FreeBSD$ */
#include "linux32_assym.h" /* system definitions */
#include <machine/asmacros.h> /* miscellaneous asm macros */
#include <amd64/linux32/linux32_syscall.h> /* system call numbers */
.text
.code32
NON_GPROF_ENTRY(linux_sigcode)
call *LINUX_SIGF_HANDLER(%esp)
leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */
movl LINUX_SC_ES(%ebx),%es
movl LINUX_SC_DS(%ebx),%ds
movl %esp, %ebx /* pass sigframe */
push %eax /* fake ret addr */
movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */
int $0x80 /* enter kernel with args */
0: jmp 0b
ALIGN_TEXT
/* XXXXX */
linux_rt_sigcode:
call *LINUX_RT_SIGF_HANDLER(%esp)
leal LINUX_RT_SIGF_UC(%esp),%ebx /* linux ucp */
movl LINUX_SC_ES(%ebx),%es
movl LINUX_SC_DS(%ebx),%ds
push %eax /* fake ret addr */
movl $LINUX_SYS_linux_rt_sigreturn,%eax /* linux_rt_sigreturn() */
int $0x80 /* enter kernel with args */
0: jmp 0b
ALIGN_TEXT
/* XXXXX */
linux_esigcode:
.data
.globl linux_szsigcode, linux_sznonrtsigcode
linux_szsigcode:
.long linux_esigcode-linux_sigcode
linux_sznonrtsigcode:
.long linux_rt_sigcode-linux_sigcode