45 lines
1.0 KiB
ArmAsm
45 lines
1.0 KiB
ArmAsm
#include "svr4_assym.h" /* system definitions */
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#include <machine/asmacros.h> /* miscellaneous asm macros */
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#include <svr4/svr4_syscall.h> /* system call numbers */
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NON_GPROF_ENTRY(svr4_sigcode)
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call SVR4_SIGF_HANDLER(%esp)
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leal SVR4_SIGF_UC(%esp),%eax # ucp (the call may have clobbered the
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# copy at SIGF_UCP(%esp))
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#if defined(NOTYET)
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#ifdef VM86
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testl $PSL_VM,SVR4_UC_EFLAGS(%eax)
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jnz 1f
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#endif
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#endif
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movl SVR4_UC_GS(%eax),%edx
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movl %dx,%gs
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#if defined(__NetBSD__)
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movl SVR4_UC_FS(%eax),%ecx
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movl %cx,%fs
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1: pushl %eax
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pushl $1 # setcontext(p) == syscontext(1, p)
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pushl %eax # junk to fake return address
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movl $_svr4_sys_context,%eax
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#else
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/* must be FreeBSD, right? */
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1: pushl %eax # fake return address
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pushl $1 # pointer to ucontext
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movl $_svr4_sys_context,%eax
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#endif
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int $0x80 # enter kernel with args on stack
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movl $exit,%eax
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int $0x80 # exit if sigreturn fails
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.align 2 /* long word align */
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svr4_esigcode:
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.data
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.globl _svr4_szsigcode
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_svr4_szsigcode:
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.long svr4_esigcode - _svr4_sigcode
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.text
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