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-rw-r--r--arch/x86/ia32/vsyscall-sigreturn.S143
1 files changed, 0 insertions, 143 deletions
diff --git a/arch/x86/ia32/vsyscall-sigreturn.S b/arch/x86/ia32/vsyscall-sigreturn.S
deleted file mode 100644
index b383be00baec..000000000000
--- a/arch/x86/ia32/vsyscall-sigreturn.S
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Common code for the sigreturn entry points on the vsyscall page.
- * This code uses SYSCALL_ENTER_KERNEL (either syscall or int $0x80)
- * to enter the kernel.
- * This file is #include'd by vsyscall-*.S to define them after the
- * vsyscall entry point. The addresses we get for these entry points
- * by doing ".balign 32" must match in both versions of the page.
- */
-
- .code32
- .section .text.sigreturn,"ax"
- .balign 32
- .globl __kernel_sigreturn
- .type __kernel_sigreturn,@function
-__kernel_sigreturn:
-.LSTART_sigreturn:
- popl %eax
- movl $__NR_ia32_sigreturn, %eax
- SYSCALL_ENTER_KERNEL
-.LEND_sigreturn:
- .size __kernel_sigreturn,.-.LSTART_sigreturn
-
- .section .text.rtsigreturn,"ax"
- .balign 32
- .globl __kernel_rt_sigreturn
- .type __kernel_rt_sigreturn,@function
-__kernel_rt_sigreturn:
-.LSTART_rt_sigreturn:
- movl $__NR_ia32_rt_sigreturn, %eax
- SYSCALL_ENTER_KERNEL
-.LEND_rt_sigreturn:
- .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
-
- .section .eh_frame,"a",@progbits
-.LSTARTFRAMES:
- .long .LENDCIES-.LSTARTCIES
-.LSTARTCIES:
- .long 0 /* CIE ID */
- .byte 1 /* Version number */
- .string "zRS" /* NUL-terminated augmentation string */
- .uleb128 1 /* Code alignment factor */
- .sleb128 -4 /* Data alignment factor */
- .byte 8 /* Return address register column */
- .uleb128 1 /* Augmentation value length */
- .byte 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
- .byte 0x0c /* DW_CFA_def_cfa */
- .uleb128 4
- .uleb128 4
- .byte 0x88 /* DW_CFA_offset, column 0x8 */
- .uleb128 1
- .align 4
-.LENDCIES:
-
- .long .LENDFDE2-.LSTARTFDE2 /* Length FDE */
-.LSTARTFDE2:
- .long .LSTARTFDE2-.LSTARTFRAMES /* CIE pointer */
- /* HACK: The dwarf2 unwind routines will subtract 1 from the
- return address to get an address in the middle of the
- presumed call instruction. Since we didn't get here via
- a call, we need to include the nop before the real start
- to make up for it. */
- .long .LSTART_sigreturn-1-. /* PC-relative start address */
- .long .LEND_sigreturn-.LSTART_sigreturn+1
- .uleb128 0 /* Augmentation length */
- /* What follows are the instructions for the table generation.
- We record the locations of each register saved. This is
- complicated by the fact that the "CFA" is always assumed to
- be the value of the stack pointer in the caller. This means
- that we must define the CFA of this body of code to be the
- saved value of the stack pointer in the sigcontext. Which
- also means that there is no fixed relation to the other
- saved registers, which means that we must use DW_CFA_expression
- to compute their addresses. It also means that when we
- adjust the stack with the popl, we have to do it all over again. */
-
-#define do_cfa_expr(offset) \
- .byte 0x0f; /* DW_CFA_def_cfa_expression */ \
- .uleb128 1f-0f; /* length */ \
-0: .byte 0x74; /* DW_OP_breg4 */ \
- .sleb128 offset; /* offset */ \
- .byte 0x06; /* DW_OP_deref */ \
-1:
-
-#define do_expr(regno, offset) \
- .byte 0x10; /* DW_CFA_expression */ \
- .uleb128 regno; /* regno */ \
- .uleb128 1f-0f; /* length */ \
-0: .byte 0x74; /* DW_OP_breg4 */ \
- .sleb128 offset; /* offset */ \
-1:
-
- do_cfa_expr(IA32_SIGCONTEXT_esp+4)
- do_expr(0, IA32_SIGCONTEXT_eax+4)
- do_expr(1, IA32_SIGCONTEXT_ecx+4)
- do_expr(2, IA32_SIGCONTEXT_edx+4)
- do_expr(3, IA32_SIGCONTEXT_ebx+4)
- do_expr(5, IA32_SIGCONTEXT_ebp+4)
- do_expr(6, IA32_SIGCONTEXT_esi+4)
- do_expr(7, IA32_SIGCONTEXT_edi+4)
- do_expr(8, IA32_SIGCONTEXT_eip+4)
-
- .byte 0x42 /* DW_CFA_advance_loc 2 -- nop; popl eax. */
-
- do_cfa_expr(IA32_SIGCONTEXT_esp)
- do_expr(0, IA32_SIGCONTEXT_eax)
- do_expr(1, IA32_SIGCONTEXT_ecx)
- do_expr(2, IA32_SIGCONTEXT_edx)
- do_expr(3, IA32_SIGCONTEXT_ebx)
- do_expr(5, IA32_SIGCONTEXT_ebp)
- do_expr(6, IA32_SIGCONTEXT_esi)
- do_expr(7, IA32_SIGCONTEXT_edi)
- do_expr(8, IA32_SIGCONTEXT_eip)
-
- .align 4
-.LENDFDE2:
-
- .long .LENDFDE3-.LSTARTFDE3 /* Length FDE */
-.LSTARTFDE3:
- .long .LSTARTFDE3-.LSTARTFRAMES /* CIE pointer */
- /* HACK: See above wrt unwind library assumptions. */
- .long .LSTART_rt_sigreturn-1-. /* PC-relative start address */
- .long .LEND_rt_sigreturn-.LSTART_rt_sigreturn+1
- .uleb128 0 /* Augmentation */
- /* What follows are the instructions for the table generation.
- We record the locations of each register saved. This is
- slightly less complicated than the above, since we don't
- modify the stack pointer in the process. */
-
- do_cfa_expr(IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esp)
- do_expr(0, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eax)
- do_expr(1, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ecx)
- do_expr(2, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edx)
- do_expr(3, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebx)
- do_expr(5, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_ebp)
- do_expr(6, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_esi)
- do_expr(7, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_edi)
- do_expr(8, IA32_RT_SIGFRAME_sigcontext-4 + IA32_SIGCONTEXT_eip)
-
- .align 4
-.LENDFDE3:
-
-#include "../../x86/kernel/vsyscall-note_32.S"
-