diff options
Diffstat (limited to 'vendor/rustix/src/imp/linux_raw/arch/outline/x86.s')
| -rw-r--r-- | vendor/rustix/src/imp/linux_raw/arch/outline/x86.s | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/vendor/rustix/src/imp/linux_raw/arch/outline/x86.s b/vendor/rustix/src/imp/linux_raw/arch/outline/x86.s new file mode 100644 index 000000000..bda234e1a --- /dev/null +++ b/vendor/rustix/src/imp/linux_raw/arch/outline/x86.s @@ -0,0 +1,381 @@ +// Assembly code for making x86 syscalls. +// +// On x86 we use the "fastcall" convention which passes the first two +// arguments in ecx and edx. Outline.rs reorders the arguments to put +// a1 and a2 in those registers so they we don't have to move them to +// set up the kernel convention. +// +// "fastcall" expects callee to pop argument stack space, so we use +// `ret imm` instructions to clean up the stack. We don't need callee +// cleanup per se, it just comes along with using "fastcall". + + .file "x86.s" + .intel_syntax noprefix + + .section .text.rustix_indirect_syscall0_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall0_nr_last_fastcall + .hidden rustix_indirect_syscall0_nr_last_fastcall + .type rustix_indirect_syscall0_nr_last_fastcall, @function +rustix_indirect_syscall0_nr_last_fastcall: + .cfi_startproc + mov eax,ecx + call edx + ret + .cfi_endproc + .size rustix_indirect_syscall0_nr_last_fastcall, .-rustix_indirect_syscall0_nr_last_fastcall + + .section .text.rustix_indirect_syscall1_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall1_nr_last_fastcall + .hidden rustix_indirect_syscall1_nr_last_fastcall + .type rustix_indirect_syscall1_nr_last_fastcall, @function +rustix_indirect_syscall1_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov ebx,ecx + mov eax,edx + call DWORD PTR [esp+0x8] + pop ebx + .cfi_def_cfa_offset 4 + ret 0x4 + .cfi_endproc + .size rustix_indirect_syscall1_nr_last_fastcall, .-rustix_indirect_syscall1_nr_last_fastcall + + .section .text.rustix_indirect_syscall1_noreturn_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall1_noreturn_nr_last_fastcall + .hidden rustix_indirect_syscall1_noreturn_nr_last_fastcall + .type rustix_indirect_syscall1_noreturn_nr_last_fastcall, @function +rustix_indirect_syscall1_noreturn_nr_last_fastcall: + .cfi_startproc + mov ebx,ecx + mov eax,edx + call DWORD PTR [esp+0x4] + ud2 + .cfi_endproc + .size rustix_indirect_syscall1_noreturn_nr_last_fastcall, .-rustix_indirect_syscall1_noreturn_nr_last_fastcall + + .section .text.rustix_indirect_syscall2_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall2_nr_last_fastcall + .hidden rustix_indirect_syscall2_nr_last_fastcall + .type rustix_indirect_syscall2_nr_last_fastcall, @function +rustix_indirect_syscall2_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov ebx,edx + mov eax,DWORD PTR [esp+0x8] + call DWORD PTR [esp+0xc] + pop ebx + .cfi_def_cfa_offset 4 + ret 0x8 + .cfi_endproc + .size rustix_indirect_syscall2_nr_last_fastcall, .-rustix_indirect_syscall2_nr_last_fastcall + + .section .text.rustix_indirect_syscall3_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall3_nr_last_fastcall + .hidden rustix_indirect_syscall3_nr_last_fastcall + .type rustix_indirect_syscall3_nr_last_fastcall, @function +rustix_indirect_syscall3_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0x8] + mov eax,DWORD PTR [esp+0xc] + call DWORD PTR [esp+0x10] + pop ebx + .cfi_def_cfa_offset 4 + ret 0xc + .cfi_endproc + .size rustix_indirect_syscall3_nr_last_fastcall, .-rustix_indirect_syscall3_nr_last_fastcall + + .section .text.rustix_indirect_syscall4_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall4_nr_last_fastcall + .hidden rustix_indirect_syscall4_nr_last_fastcall + .type rustix_indirect_syscall4_nr_last_fastcall, @function +rustix_indirect_syscall4_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + push esi + .cfi_def_cfa_offset 12 + .cfi_offset esi, -12 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0xc] + mov esi,DWORD PTR [esp+0x10] + mov eax,DWORD PTR [esp+0x14] + call DWORD PTR [esp+0x18] + pop esi + .cfi_def_cfa_offset 8 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x10 + .cfi_endproc + .size rustix_indirect_syscall4_nr_last_fastcall, .-rustix_indirect_syscall4_nr_last_fastcall + + .section .text.rustix_indirect_syscall5_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall5_nr_last_fastcall + .hidden rustix_indirect_syscall5_nr_last_fastcall + .type rustix_indirect_syscall5_nr_last_fastcall, @function +rustix_indirect_syscall5_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + push esi + .cfi_def_cfa_offset 12 + push edi + .cfi_def_cfa_offset 16 + .cfi_offset edi, -16 + .cfi_offset esi, -12 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0x10] + mov esi,DWORD PTR [esp+0x14] + mov edi,DWORD PTR [esp+0x18] + mov eax,DWORD PTR [esp+0x1c] + call DWORD PTR [esp+0x20] + pop edi + .cfi_def_cfa_offset 12 + pop esi + .cfi_def_cfa_offset 8 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x14 + .cfi_endproc + .size rustix_indirect_syscall5_nr_last_fastcall, .-rustix_indirect_syscall5_nr_last_fastcall + + .section .text.rustix_indirect_syscall6_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_indirect_syscall6_nr_last_fastcall + .hidden rustix_indirect_syscall6_nr_last_fastcall + .type rustix_indirect_syscall6_nr_last_fastcall, @function +rustix_indirect_syscall6_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + push esi + .cfi_def_cfa_offset 12 + push edi + .cfi_def_cfa_offset 16 + push ebp + .cfi_def_cfa_offset 20 + .cfi_offset ebp, -20 + .cfi_offset edi, -16 + .cfi_offset esi, -12 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0x14] + mov esi,DWORD PTR [esp+0x18] + mov edi,DWORD PTR [esp+0x1c] + mov ebp,DWORD PTR [esp+0x20] + mov eax,DWORD PTR [esp+0x24] + call DWORD PTR [esp+0x28] + pop ebp + .cfi_def_cfa_offset 16 + pop edi + .cfi_def_cfa_offset 12 + pop esi + .cfi_def_cfa_offset 8 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x18 + .cfi_endproc + .size rustix_indirect_syscall6_nr_last_fastcall, .-rustix_indirect_syscall6_nr_last_fastcall + + .section .text.rustix_syscall0_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall0_nr_last_fastcall + .hidden rustix_syscall0_nr_last_fastcall + .type rustix_syscall0_nr_last_fastcall, @function +rustix_syscall0_nr_last_fastcall: + .cfi_startproc + mov eax,ecx + int 0x80 + ret + .cfi_endproc + .size rustix_syscall0_nr_last_fastcall, .-rustix_syscall0_nr_last_fastcall + + .section .text.rustix_syscall1_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall1_nr_last_fastcall + .hidden rustix_syscall1_nr_last_fastcall + .type rustix_syscall1_nr_last_fastcall, @function +rustix_syscall1_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov eax,edx + mov ebx,ecx + int 0x80 + pop ebx + .cfi_def_cfa_offset 4 + ret + .cfi_endproc + .size rustix_syscall1_nr_last_fastcall, .-rustix_syscall1_nr_last_fastcall + + .section .text.rustix_syscall1_noreturn_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall1_noreturn_nr_last_fastcall + .hidden rustix_syscall1_noreturn_nr_last_fastcall + .type rustix_syscall1_noreturn_nr_last_fastcall, @function +rustix_syscall1_noreturn_nr_last_fastcall: + .cfi_startproc + mov eax,edx + mov ebx,ecx + int 0x80 + ud2 + .cfi_endproc + .size rustix_syscall1_noreturn_nr_last_fastcall, .-rustix_syscall1_noreturn_nr_last_fastcall + + .section .text.rustix_syscall2_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall2_nr_last_fastcall + .hidden rustix_syscall2_nr_last_fastcall + .type rustix_syscall2_nr_last_fastcall, @function +rustix_syscall2_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov ebx,edx + mov eax,DWORD PTR [esp+0x8] + int 0x80 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x4 + .cfi_endproc + .size rustix_syscall2_nr_last_fastcall, .-rustix_syscall2_nr_last_fastcall + + .section .text.rustix_syscall3_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall3_nr_last_fastcall + .hidden rustix_syscall3_nr_last_fastcall + .type rustix_syscall3_nr_last_fastcall, @function +rustix_syscall3_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0x8] + mov eax,DWORD PTR [esp+0xc] + int 0x80 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x8 + .cfi_endproc + .size rustix_syscall3_nr_last_fastcall, .-rustix_syscall3_nr_last_fastcall + + .section .text.rustix_syscall4_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall4_nr_last_fastcall + .hidden rustix_syscall4_nr_last_fastcall + .type rustix_syscall4_nr_last_fastcall, @function +rustix_syscall4_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + push esi + .cfi_def_cfa_offset 12 + .cfi_offset esi, -12 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0xc] + mov esi,DWORD PTR [esp+0x10] + mov eax,DWORD PTR [esp+0x14] + int 0x80 + pop esi + .cfi_def_cfa_offset 8 + pop ebx + .cfi_def_cfa_offset 4 + ret 0xc + .cfi_endproc + .size rustix_syscall4_nr_last_fastcall, .-rustix_syscall4_nr_last_fastcall + + .section .text.rustix_syscall5_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall5_nr_last_fastcall + .hidden rustix_syscall5_nr_last_fastcall + .type rustix_syscall5_nr_last_fastcall, @function +rustix_syscall5_nr_last_fastcall: + .cfi_startproc + push ebx + .cfi_def_cfa_offset 8 + push edi + .cfi_def_cfa_offset 12 + push esi + .cfi_def_cfa_offset 16 + .cfi_offset esi, -16 + .cfi_offset edi, -12 + .cfi_offset ebx, -8 + mov ebx,DWORD PTR [esp+0x10] + mov esi,DWORD PTR [esp+0x14] + mov edi,DWORD PTR [esp+0x18] + mov eax,DWORD PTR [esp+0x1c] + int 0x80 + pop esi + .cfi_def_cfa_offset 12 + pop edi + .cfi_def_cfa_offset 8 + pop ebx + .cfi_def_cfa_offset 4 + ret 0x10 + .cfi_endproc + .size rustix_syscall5_nr_last_fastcall, .-rustix_syscall5_nr_last_fastcall + + .section .text.rustix_syscall6_nr_last_fastcall,"ax",@progbits + .p2align 4 + .weak rustix_syscall6_nr_last_fastcall + .hidden rustix_syscall6_nr_last_fastcall + .type rustix_syscall6_nr_last_fastcall, @function +rustix_syscall6_nr_last_fastcall: + .cfi_startproc + push ebp + .cfi_def_cfa_offset 8 + push ebx + .cfi_def_cfa_offset 12 + push edi + .cfi_def_cfa_offset 16 + push esi + .cfi_def_cfa_offset 20 + .cfi_offset esi, -20 + .cfi_offset edi, -16 + .cfi_offset ebx, -12 + .cfi_offset ebp, -8 + mov ebx,DWORD PTR [esp+0x14] + mov esi,DWORD PTR [esp+0x18] + mov edi,DWORD PTR [esp+0x1c] + mov ebp,DWORD PTR [esp+0x20] + mov eax,DWORD PTR [esp+0x24] + int 0x80 + pop esi + .cfi_def_cfa_offset 16 + pop edi + .cfi_def_cfa_offset 12 + pop ebx + .cfi_def_cfa_offset 8 + pop ebp + .cfi_def_cfa_offset 4 + ret 0x14 + .cfi_endproc + .size rustix_syscall6_nr_last_fastcall, .-rustix_syscall6_nr_last_fastcall + + .section .text.rustix_int_0x80,"ax",@progbits + .p2align 4 + .weak rustix_int_0x80 + .hidden rustix_int_0x80 + .type rustix_int_0x80, @function +rustix_int_0x80: + .cfi_startproc + int 0x80 + ret + .cfi_endproc + .size rustix_int_0x80, .-rustix_int_0x80 + + .section .note.GNU-stack,"",@progbits |