linux32_locore.s revision 182849
1/* $FreeBSD: head/sys/amd64/linux32/linux32_locore.s 182849 2008-09-07 16:39:21Z kib $ */ 2 3#include "linux32_assym.h" /* system definitions */ 4#include <machine/asmacros.h> /* miscellaneous asm macros */ 5 6#include <amd64/linux32/linux32_syscall.h> /* system call numbers */ 7 8.text 9.code32 10 11NON_GPROF_ENTRY(linux_sigcode) 12 call *LINUX_SIGF_HANDLER(%esp) 13 leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */ 14 movl LINUX_SC_ES(%ebx),%es 15 movl LINUX_SC_DS(%ebx),%ds 16 movl %esp, %ebx /* pass sigframe */ 17 push %eax /* fake ret addr */ 18 movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */ 19 int $0x80 /* enter kernel with args */ 200: jmp 0b 21 ALIGN_TEXT 22/* XXXXX */ 23linux_rt_sigcode: 24 call *LINUX_RT_SIGF_HANDLER(%esp) 25 leal LINUX_RT_SIGF_UC(%esp),%ebx /* linux ucp */ 26 leal LINUX_RT_SIGF_SC(%ebx),%ecx /* linux sigcontext */ 27 movl LINUX_SC_ES(%ecx),%es 28 movl LINUX_SC_DS(%ecx),%ds 29 push %eax /* fake ret addr */ 30 movl $LINUX_SYS_linux_rt_sigreturn,%eax /* linux_rt_sigreturn() */ 31 int $0x80 /* enter kernel with args */ 320: jmp 0b 33 ALIGN_TEXT 34/* XXXXX */ 35linux_esigcode: 36 37 .data 38 .globl linux_szsigcode, linux_sznonrtsigcode 39linux_szsigcode: 40 .long linux_esigcode-linux_sigcode 41linux_sznonrtsigcode: 42 .long linux_rt_sigcode-linux_sigcode 43