9dee707cf0
l_ucontext. To restore the registers content, trampoline needs to dereference uc_mcontext instead of taking some undefined values from l_ucontext. Submitted by: Dmitry Chagin <dchagin@> MFC after: 1 week
43 lines
1.2 KiB
ArmAsm
43 lines
1.2 KiB
ArmAsm
/* $FreeBSD$ */
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#include "linux32_assym.h" /* system definitions */
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#include <machine/asmacros.h> /* miscellaneous asm macros */
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#include <amd64/linux32/linux32_syscall.h> /* system call numbers */
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.text
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.code32
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NON_GPROF_ENTRY(linux_sigcode)
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call *LINUX_SIGF_HANDLER(%esp)
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leal LINUX_SIGF_SC(%esp),%ebx /* linux scp */
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movl LINUX_SC_ES(%ebx),%es
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movl LINUX_SC_DS(%ebx),%ds
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movl %esp, %ebx /* pass sigframe */
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push %eax /* fake ret addr */
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movl $LINUX_SYS_linux_sigreturn,%eax /* linux_sigreturn() */
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int $0x80 /* enter kernel with args */
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0: jmp 0b
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ALIGN_TEXT
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/* XXXXX */
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linux_rt_sigcode:
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call *LINUX_RT_SIGF_HANDLER(%esp)
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leal LINUX_RT_SIGF_UC(%esp),%ebx /* linux ucp */
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leal LINUX_RT_SIGF_SC(%ebx),%ecx /* linux sigcontext */
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movl LINUX_SC_ES(%ecx),%es
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movl LINUX_SC_DS(%ecx),%ds
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push %eax /* fake ret addr */
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movl $LINUX_SYS_linux_rt_sigreturn,%eax /* linux_rt_sigreturn() */
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int $0x80 /* enter kernel with args */
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0: jmp 0b
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ALIGN_TEXT
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/* XXXXX */
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linux_esigcode:
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.data
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.globl linux_szsigcode, linux_sznonrtsigcode
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linux_szsigcode:
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.long linux_esigcode-linux_sigcode
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linux_sznonrtsigcode:
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.long linux_rt_sigcode-linux_sigcode
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