132f90c660
A version of each of the MD files by necessity exists for each CPU architecture supported by the Linuxolator. Clean these up so that new architectures do not inherit whitespace issues. Clean up shared Linuxolator files while here. Sponsored by: Turing Robotic Industries Inc.
150 lines
3.7 KiB
ArmAsm
150 lines
3.7 KiB
ArmAsm
/* $FreeBSD$ */
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#include "linux_assym.h" /* system definitions */
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#include <machine/asmacros.h> /* miscellaneous asm macros */
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#include <i386/linux/linux_syscall.h> /* system call numbers */
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#include "assym.s"
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/*
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* To avoid excess stack frame the signal trampoline code emulates
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* the 'call' instruction.
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*/
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NON_GPROF_ENTRY(linux_sigcode)
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movl %esp, %ebx /* preserve sigframe */
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call .getip0
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.getip0:
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popl %eax
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add $.startsigcode-.getip0, %eax /* ret address */
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push %eax
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jmp *LINUX_SIGF_HANDLER(%ebx)
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.startsigcode:
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popl %eax /* gcc unwind code need this */
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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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.endsigcode:
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0: jmp 0b
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NON_GPROF_ENTRY(linux_rt_sigcode)
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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 %esp, %edi
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call .getip1
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.getip1:
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popl %eax
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add $.startrtsigcode-.getip1, %eax /* ret address */
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push %eax
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jmp *LINUX_RT_SIGF_HANDLER(%edi)
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.startrtsigcode:
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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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.endrtsigcode:
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0: jmp 0b
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NON_GPROF_ENTRY(linux_vsyscall)
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.startvsyscall:
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int $0x80
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ret
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.endvsyscall:
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#if 0
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.section .note.Linux, "a",@note
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.long 2f - 1f /* namesz */
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.balign 4
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.long 4f - 3f /* descsz */
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.long 0
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1:
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.asciz "Linux"
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2:
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.balign 4
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3:
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.long LINUX_VERSION_CODE
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4:
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.balign 4
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.previous
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#endif
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#define do_cfa_expr(offset) \
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.byte 0x0f; /* DW_CFA_def_cfa_expression */ \
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.uleb128 11f-10f; /* length */ \
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10: .byte 0x74; /* DW_OP_breg4 */ \
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.sleb128 offset; /* offset */ \
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.byte 0x06; /* DW_OP_deref */ \
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11:
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/* CIE */
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.section .eh_frame,"a",@progbits
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.LSTARTFRAMEDLSI1:
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.long .LENDCIEDLSI1-.LSTARTCIEDLSI1
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.LSTARTCIEDLSI1:
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.long 0 /* CIE ID */
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.byte 1 /* Version number */
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.string "zRS" /* NULL-terminated
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* augmentation string
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*/
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.uleb128 1 /* Code alignment factor */
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.sleb128 -4 /* Data alignment factor */
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.byte 8 /* Return address
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* register column
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*/
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.uleb128 1 /* Augmentation value length */
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.byte 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
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.byte 0 /* DW_CFA_nop */
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.align 4
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.LENDCIEDLSI1:
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/* FDE */
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.long .LENDFDEDLSI1-.LSTARTFDEDLSI1 /* Length FDE */
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.LSTARTFDEDLSI1:
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.long .LSTARTFDEDLSI1-.LSTARTFRAMEDLSI1 /* CIE pointer */
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.long .startsigcode-. /* PC-relative start address */
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.long .endsigcode-.startsigcode
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.uleb128 0 /* Augmentation */
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do_cfa_expr(LINUX_SIGF_SC-8)
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.align 4
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.LENDFDEDLSI1:
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.long .LENDFDEDLSI2-.LSTARTFDEDLSI2 /* Length FDE */
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.LSTARTFDEDLSI2:
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.long .LSTARTFDEDLSI2-.LSTARTFRAMEDLSI1 /* CIE pointer */
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.long .startrtsigcode-. /* PC-relative start address */
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.long .endrtsigcode-.startrtsigcode
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.uleb128 0 /* Augmentation */
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do_cfa_expr(LINUX_RT_SIGF_SC-4+LINUX_SC_ESP)
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.align 4
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.LENDFDEDLSI2:
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.previous
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.section .eh_frame,"a",@progbits
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.LSTARTFRAMEDLSI2:
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.long .LENDCIEDLSI2-.LSTARTCIEDLSI2
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.LSTARTCIEDLSI2:
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.long 0 /* CIE ID */
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.byte 1 /* Version number */
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.string "zR" /* NULL-terminated
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* augmentation string
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*/
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.uleb128 1 /* Code alignment factor */
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.sleb128 -4 /* Data alignment factor */
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.byte 8 /* Return address register column */
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.uleb128 1 /* Augmentation value length */
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.byte 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
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.byte 0x0c /* DW_CFA_def_cfa */
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.uleb128 4
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.uleb128 4
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.byte 0x88 /* DW_CFA_offset, column 0x8 */
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.uleb128 1
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.align 4
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.LENDCIEDLSI2:
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.long .LENDFDEDLSI3-.LSTARTFDEDLSI3 /* Length FDE */
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.LSTARTFDEDLSI3:
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.long .LSTARTFDEDLSI3-.LSTARTFRAMEDLSI2 /* CIE pointer */
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.long .startvsyscall-. /* PC-relative start address */
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.long .endvsyscall-.startvsyscall
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.uleb128 0
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.align 4
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.LENDFDEDLSI3:
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.previous
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