winebuild: Factor out output_syscall_dispatcher.
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban
Alexandre Julliard
parent
a0a62463e3
commit
a06d60bd5f
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@ -1425,10 +1425,270 @@ static int cmp_link_name( const void *e1, const void *e2 )
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}
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/* output dispatcher for system calls */
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static void output_syscall_dispatcher( int count )
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{
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const unsigned int invalid_param = 0xc000000d; /* STATUS_INVALID_PARAMETER */
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output( "\t.align %d\n", get_alignment(4) );
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output( "\t%s\n", func_declaration("__wine_syscall_dispatcher") );
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output( "%s\n", asm_globl("__wine_syscall_dispatcher") );
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output_cfi( ".cfi_startproc" );
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switch (target_cpu)
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{
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case CPU_x86:
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output( "\tpushl %%ebp\n" );
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output_cfi( ".cfi_adjust_cfa_offset 4\n" );
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output_cfi( ".cfi_rel_offset %%ebp,0\n" );
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output( "\tmovl %%esp,%%ebp\n" );
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output_cfi( ".cfi_def_cfa_register %%ebp\n" );
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output( "\tpushl %%ebx\n" );
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output_cfi( ".cfi_rel_offset %%ebx,-4\n" );
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output( "\tpushl %%esi\n" );
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output_cfi( ".cfi_rel_offset %%esi,-8\n" );
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output( "\tpushl %%edi\n" );
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output_cfi( ".cfi_rel_offset %%edi,-12\n" );
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output( "\tmovl %%esp,%%fs:0x1f8\n" ); /* x86_thread_data()->syscall_frame */
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output( "\tcmpl $%u,%%eax\n", count );
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output( "\tjae 3f\n" );
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if (UsePIC)
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{
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output( "\tmovl %%eax,%%edx\n" );
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output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
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output( "1:\tmovzbl .Lsyscall_args-1b(%%eax,%%edx,1),%%ecx\n" );
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needs_get_pc_thunk = 1;
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}
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else output( "\tmovzbl .Lsyscall_args(%%eax),%%ecx\n" );
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output( "\tsubl %%ecx,%%esp\n" );
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output( "\tshrl $2,%%ecx\n" );
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output( "\tleal 12(%%ebp),%%esi\n" );
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output( "\tandl $~15,%%esp\n" );
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output( "\tmovl %%esp,%%edi\n" );
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output( "\tcld\n" );
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output( "\trep; movsl\n" );
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if (UsePIC)
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output( "\tcall *.Lsyscall_table-1b(%%eax,%%edx,4)\n" );
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else
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output( "\tcall *.Lsyscall_table(,%%eax,4)\n" );
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output( "\tleal -12(%%ebp),%%esp\n" );
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output( "2:\tmovl $0,%%fs:0x1f8\n" );
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output( "\tpopl %%edi\n" );
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output_cfi( ".cfi_same_value %%edi\n" );
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output( "\tpopl %%esi\n" );
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output_cfi( ".cfi_same_value %%esi\n" );
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output( "\tpopl %%ebx\n" );
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output_cfi( ".cfi_same_value %%ebx\n" );
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output( "\tpopl %%ebp\n" );
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output_cfi( ".cfi_def_cfa %%esp,4\n" );
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output_cfi( ".cfi_same_value %%ebp\n" );
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output( "\tret\n" );
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output( "3:\tmovl $0x%x,%%eax\n", invalid_param );
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output( "\tjmp 2b\n" );
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break;
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case CPU_x86_64:
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output( "\tpushq %%rbp\n" );
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output_cfi( ".cfi_adjust_cfa_offset 8" );
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output_cfi( ".cfi_rel_offset %%rbp,0" );
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output( "\tmovq %%rsp,%%rbp\n" );
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output_cfi( ".cfi_def_cfa_register %%rbp" );
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output( "\tleaq -0x10(%%rbp),%%rsp\n" );
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output( "\tpushfq\n" );
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output( "\tsubq $0x280,%%rsp\n" );
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output( "\tandq $~63,%%rsp\n" );
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output( "\tmovq %%rbx,-0x90(%%rbp)\n" );
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output_cfi( ".cfi_rel_offset %%rbx,-144" );
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output( "\tmovq %%rsi,-0x78(%%rbp)\n" );
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output_cfi( ".cfi_rel_offset %%rsi,-120" );
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output( "\tmovq %%rdi,-0x70(%%rbp)\n" );
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output_cfi( ".cfi_rel_offset %%rdi,-112" );
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output( "\tmovq %%r12,-0x48(%%rbp)\n" );
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output_cfi( ".cfi_rel_offset %%r12,-72" );
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output( "\tmovq %%r13,-0x40(%%rbp)\n" );
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output( "\tmovq %%r14,-0x38(%%rbp)\n" );
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output( "\tmovq %%r15,-0x30(%%rbp)\n" );
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/* Legends of Runeterra hooks the first system call return instruction, and
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* depends on us returning to it. Adjust the return address accordingly. */
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output( "\tsubq $0xb,0x8(%%rbp)\n" );
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output( "\tmovq 0x8(%%rbp),%%rbx\n" );
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output( "\tmovq %%rbx,-0x28(%%rbp)\n" );
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output( "\tleaq 0x10(%%rbp),%%rbx\n" );
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output( "\tmovq %%rbx,-0x10(%%rbp)\n" );
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output( "\tmovw %%cs,-0x20(%%rbp)\n" );
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output( "\tmovw %%ds,-0x1e(%%rbp)\n" );
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output( "\tmovw %%es,-0x1c(%%rbp)\n" );
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output( "\tmovw %%fs,-0x1a(%%rbp)\n" );
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output( "\tmovw %%ss,-0x8(%%rbp)\n" );
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output( "\tmovw %%gs,-0x6(%%rbp)\n" );
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output( "\tmovq %%rsp,%%r12\n" );
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output( "\tfxsave64 (%%r12)\n" );
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output( "\tmovq %%gs:0x30,%%rcx\n" );
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output( "\tleaq -0x98(%%rbp),%%rbx\n" );
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output( "\tmovq %%rbx,0x328(%%rcx)\n" ); /* amd64_thread_data()->syscall_frame */
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output( "\tcmpq $%u,%%rax\n", count );
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output( "\tjae 3f\n" );
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output( "\tleaq .Lsyscall_args(%%rip),%%rcx\n" );
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output( "\tmovzbl (%%rcx,%%rax),%%ecx\n" );
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output( "\tsubq $0x20,%%rcx\n" );
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output( "\tjbe 1f\n" );
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output( "\tsubq %%rcx,%%rsp\n" );
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output( "\tshrq $3,%%rcx\n" );
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output( "\tleaq 0x38(%%rbp),%%rsi\n" );
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output( "\tandq $~15,%%rsp\n\t" );
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output( "\tmovq %%rsp,%%rdi\n" );
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output( "\tcld\n" );
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output( "\trep; movsq\n" );
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output( "1:\tmovq %%r10,%%rcx\n" );
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output( "\tsubq $0x20,%%rsp\n" );
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output( "\tleaq .Lsyscall_table(%%rip),%%r10\n" );
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output( "\tcallq *(%%r10,%%rax,8)\n" );
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output( "2:\tmovq %%gs:0x30,%%rcx\n" );
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output( "\tmovq $0,0x328(%%rcx)\n" );
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output( "\tfxrstor64 (%%r12)\n" );
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output( "\tmovq -0x30(%%rbp),%%r15\n" );
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output( "\tmovq -0x38(%%rbp),%%r14\n" );
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output( "\tmovq -0x40(%%rbp),%%r13\n" );
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output( "\tmovq -0x48(%%rbp),%%r12\n" );
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output_cfi( ".cfi_same_value %%r12" );
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output( "\tmovq -0x70(%%rbp),%%rdi\n" );
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output_cfi( ".cfi_same_value %%rdi" );
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output( "\tmovq -0x78(%%rbp),%%rsi\n" );
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output_cfi( ".cfi_same_value %%rsi" );
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output( "\tmovq -0x90(%%rbp),%%rbx\n" );
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output_cfi( ".cfi_same_value %%rbx" );
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output( "\tleaq -0x28(%%rbp),%%rsp\n" );
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output_cfi( ".cfi_def_cfa_register %%rsp" );
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output_cfi( ".cfi_adjust_cfa_offset 40" );
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output( "\tmovq (%%rbp),%%rbp\n" );
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output_cfi( ".cfi_same_value %%rbp" );
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output( "\tiretq\n" );
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output( "3:\tmovl $0x%x,%%eax\n", invalid_param );
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output( "\tjmp 2b\n" );
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break;
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case CPU_ARM:
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output( "\tpush {r5-r11,lr}\n" );
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output( "\tadd r6, sp, #40\n" ); /* stack parameters */
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output( "\tldr r5, 6f+8\n" );
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output( "\tcmp r4, r5\n" );
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output( "\tbcs 5f\n" );
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output( "\tsub sp, sp, #8\n" );
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output( "\tmrc p15, 0, r7, c13, c0, 2\n" ); /* NtCurrentTeb() */
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output( "\tadd r7, #0x1d8\n" ); /* arm_thread_data()->syscall_frame */
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output( "\tmrs ip, CPSR\n" );
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output( "\tstr ip, [sp, #4]\n" );
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output( "\tstr sp, [r7]\n" ); /* syscall frame */
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output( "\tldr r5, 6f+4\n");
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if (UsePIC) output( "1:\tadd r5, pc\n");
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output( "\tldrb r5, [r5, r4]\n" ); /* syscall args */
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output( "\tsubs r5, #16\n" ); /* first 4 args are in registers */
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output( "\tble 3f\n" );
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output( "\tsub ip, sp, r5\n" );
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output( "\tand ip, #~7\n" );
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output( "\tmov sp, ip\n" );
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output( "2:\tsubs r5, r5, #4\n" );
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output( "\tldr ip, [r6, r5]\n" );
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output( "\tstr ip, [sp, r5]\n" );
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output( "\tbgt 2b\n" );
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output( "3:\tldr r5, 6f\n");
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if (UsePIC) output( "4:\tadd r5, pc\n");
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output( "\tldr ip, [r5, r4, lsl #2]\n"); /* syscall table */
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output( "\tblx ip\n");
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output( "\tmov ip, #0\n" );
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output( "\tstr ip, [r7]\n" );
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output( "\tsub ip, r6, #40\n" );
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output( "\tmov sp, ip\n" );
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output( "\tpop {r5-r11,pc}\n" );
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output( "5:\tldr r0, 6f+12\n" );
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output( "\tpop {r5-r11,pc}\n" );
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if (UsePIC)
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{
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output( "6:\t.long .Lsyscall_table-4b-%u\n", thumb_mode ? 4 : 8 );
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output( "\t.long .Lsyscall_args-1b-%u\n", thumb_mode ? 4 : 8 );
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}
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else
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{
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output( "6:\t.long .Lsyscall_table\n" );
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output( "\t.long .Lsyscall_args\n" );
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}
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output( "\t.long %u\n", count );
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output( "\t.long 0x%x\n", invalid_param );
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break;
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case CPU_ARM64:
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output( "\tcmp x8, %u\n", count );
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output( "\tbcs 3f\n" );
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output( "\tstp x29, x30, [sp,#-160]!\n" );
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output_cfi( "\t.cfi_def_cfa_offset 160\n" );
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output_cfi( "\t.cfi_offset 29, -160\n" );
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output_cfi( "\t.cfi_offset 30, -152\n" );
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output( "\tmov x29, sp\n" );
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output_cfi( "\t.cfi_def_cfa_register 29\n" );
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output( "\tstp x27, x28, [sp, #144]\n" );
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output_cfi( "\t.cfi_offset 27, -16\n" );
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output_cfi( "\t.cfi_offset 28, -8\n" );
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output( "\tstp x25, x26, [sp, #128]\n" );
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output_cfi( "\t.cfi_offset 25, -32\n" );
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output_cfi( "\t.cfi_offset 26, -24\n" );
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output( "\tstp x23, x24, [sp, #112]\n" );
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output_cfi( "\t.cfi_offset 23, -48\n" );
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output_cfi( "\t.cfi_offset 24, -40\n" );
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output( "\tstp x21, x22, [sp, #96]\n" );
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output_cfi( "\t.cfi_offset 21, -64\n" );
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output_cfi( "\t.cfi_offset 22, -56\n" );
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output( "\tstp x19, x20, [sp, #80]\n" );
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output_cfi( "\t.cfi_offset 19, -80\n" );
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output_cfi( "\t.cfi_offset 20, -72\n" );
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output( "\tstp x6, x7, [sp, #64]\n" );
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output( "\tstp x4, x5, [sp, #48]\n" );
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output( "\tstp x2, x3, [sp, #32]\n" );
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output( "\tstp x0, x1, [sp, #16]\n" );
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output( "\tmov x20, x8\n" );
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output( "\tbl %s\n", asm_name("NtCurrentTeb") );
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output( "\tadd x19, x0, #0x2f8\n" ); /* arm64_thread_data()->syscall_frame */
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output( "\tstr x29, [x19]\n" );
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output( "\tldp x0, x1, [sp, #16]\n" );
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output( "\tldp x2, x3, [sp, #32]\n" );
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output( "\tldp x4, x5, [sp, #48]\n" );
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output( "\tldp x6, x7, [sp, #64]\n" );
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output( "\tadrp x16, %s\n", arm64_page(".Lsyscall_args") );
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output( "\tadd x16, x16, #%s\n", arm64_pageoff(".Lsyscall_args") );
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output( "\tldrb w9, [x16, x20]\n" );
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output( "\tsubs x9, x9, #64\n" );
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output( "\tbls 2f\n" );
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output( "\tadd x11, x29, #176\n" );
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output( "\tsub sp, sp, x9\n" );
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output( "\ttbz x9, #3, 1f\n" );
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output( "\tsub sp, sp, #8\n" );
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output( "1:\tsub x9, x9, #8\n" );
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output( "\tldr x10, [x11, x9]\n" );
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output( "\tstr x10, [sp, x9]\n" );
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output( "\tcbnz x9, 1b\n" );
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output( "2:\tadrp x16, %s\n", arm64_page(".Lsyscall_table") );
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output( "\tadd x16, x16, #%s\n", arm64_pageoff(".Lsyscall_table") );
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output( "\tldr x16, [x16, x20, lsl 3]\n" );
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output( "\tblr x16\n" );
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output( "\tmov sp, x29\n" );
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output( "\tstr xzr, [x19]\n" );
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output( "\tldp x19, x20, [sp, #80]\n" );
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output( "\tldp x21, x22, [sp, #96]\n" );
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output( "\tldp x23, x24, [sp, #112]\n" );
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output( "\tldp x25, x26, [sp, #128]\n" );
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output( "\tldp x27, x28, [sp, #144]\n" );
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output( "\tldp x29, x30, [sp], #160\n" );
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output( "\tret\n" );
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output( "3:\tmov x0, #0x%x\n", invalid_param & 0xffff0000 );
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output( "\tmovk x0, #0x%x\n", invalid_param & 0x0000ffff );
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output( "\tret\n" );
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break;
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default:
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assert(0);
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}
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output_cfi( ".cfi_endproc" );
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output_function_size( "__wine_syscall_dispatcher" );
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}
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/* output the functions for system calls */
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void output_syscalls( DLLSPEC *spec )
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{
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const unsigned int invalid_param = 0xc000000d; /* STATUS_INVALID_PARAMETER */
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int i, count;
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ORDDEF **syscalls = NULL;
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@ -1447,259 +1707,7 @@ void output_syscalls( DLLSPEC *spec )
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if (unix_lib)
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{
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output( "\t.align %d\n", get_alignment(4) );
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output( "\t%s\n", func_declaration("__wine_syscall_dispatcher") );
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output( "%s\n", asm_globl("__wine_syscall_dispatcher") );
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output_cfi( ".cfi_startproc" );
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switch (target_cpu)
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{
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case CPU_x86:
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output( "\tpushl %%ebp\n" );
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output_cfi( ".cfi_adjust_cfa_offset 4\n" );
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output_cfi( ".cfi_rel_offset %%ebp,0\n" );
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output( "\tmovl %%esp,%%ebp\n" );
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output_cfi( ".cfi_def_cfa_register %%ebp\n" );
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output( "\tpushl %%ebx\n" );
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output_cfi( ".cfi_rel_offset %%ebx,-4\n" );
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output( "\tpushl %%esi\n" );
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output_cfi( ".cfi_rel_offset %%esi,-8\n" );
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output( "\tpushl %%edi\n" );
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output_cfi( ".cfi_rel_offset %%edi,-12\n" );
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output( "\tmovl %%esp,%%fs:0x1f8\n" ); /* x86_thread_data()->syscall_frame */
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output( "\tcmpl $%u,%%eax\n", count );
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output( "\tjae 3f\n" );
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if (UsePIC)
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{
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output( "\tmovl %%eax,%%edx\n" );
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output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
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output( "1:\tmovzbl .Lsyscall_args-1b(%%eax,%%edx,1),%%ecx\n" );
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needs_get_pc_thunk = 1;
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}
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else output( "\tmovzbl .Lsyscall_args(%%eax),%%ecx\n" );
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output( "\tsubl %%ecx,%%esp\n" );
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output( "\tshrl $2,%%ecx\n" );
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output( "\tleal 12(%%ebp),%%esi\n" );
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output( "\tandl $~15,%%esp\n" );
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output( "\tmovl %%esp,%%edi\n" );
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output( "\tcld\n" );
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output( "\trep; movsl\n" );
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if (UsePIC)
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output( "\tcall *.Lsyscall_table-1b(%%eax,%%edx,4)\n" );
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else
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output( "\tcall *.Lsyscall_table(,%%eax,4)\n" );
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output( "\tleal -12(%%ebp),%%esp\n" );
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output( "2:\tmovl $0,%%fs:0x1f8\n" );
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output( "\tpopl %%edi\n" );
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output_cfi( ".cfi_same_value %%edi\n" );
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output( "\tpopl %%esi\n" );
|
||||
output_cfi( ".cfi_same_value %%esi\n" );
|
||||
output( "\tpopl %%ebx\n" );
|
||||
output_cfi( ".cfi_same_value %%ebx\n" );
|
||||
output( "\tpopl %%ebp\n" );
|
||||
output_cfi( ".cfi_def_cfa %%esp,4\n" );
|
||||
output_cfi( ".cfi_same_value %%ebp\n" );
|
||||
output( "\tret\n" );
|
||||
output( "3:\tmovl $0x%x,%%eax\n", invalid_param );
|
||||
output( "\tjmp 2b\n" );
|
||||
break;
|
||||
case CPU_x86_64:
|
||||
output( "\tpushq %%rbp\n" );
|
||||
output_cfi( ".cfi_adjust_cfa_offset 8" );
|
||||
output_cfi( ".cfi_rel_offset %%rbp,0" );
|
||||
output( "\tmovq %%rsp,%%rbp\n" );
|
||||
output_cfi( ".cfi_def_cfa_register %%rbp" );
|
||||
output( "\tleaq -0x10(%%rbp),%%rsp\n" );
|
||||
output( "\tpushfq\n" );
|
||||
output( "\tsubq $0x280,%%rsp\n" );
|
||||
output( "\tandq $~63,%%rsp\n" );
|
||||
output( "\tmovq %%rbx,-0x90(%%rbp)\n" );
|
||||
output_cfi( ".cfi_rel_offset %%rbx,-144" );
|
||||
output( "\tmovq %%rsi,-0x78(%%rbp)\n" );
|
||||
output_cfi( ".cfi_rel_offset %%rsi,-120" );
|
||||
output( "\tmovq %%rdi,-0x70(%%rbp)\n" );
|
||||
output_cfi( ".cfi_rel_offset %%rdi,-112" );
|
||||
output( "\tmovq %%r12,-0x48(%%rbp)\n" );
|
||||
output_cfi( ".cfi_rel_offset %%r12,-72" );
|
||||
output( "\tmovq %%r13,-0x40(%%rbp)\n" );
|
||||
output( "\tmovq %%r14,-0x38(%%rbp)\n" );
|
||||
output( "\tmovq %%r15,-0x30(%%rbp)\n" );
|
||||
/* Legends of Runeterra hooks the first system call return instruction, and
|
||||
* depends on us returning to it. Adjust the return address accordingly. */
|
||||
output( "\tsubq $0xb,0x8(%%rbp)\n" );
|
||||
output( "\tmovq 0x8(%%rbp),%%rbx\n" );
|
||||
output( "\tmovq %%rbx,-0x28(%%rbp)\n" );
|
||||
output( "\tleaq 0x10(%%rbp),%%rbx\n" );
|
||||
output( "\tmovq %%rbx,-0x10(%%rbp)\n" );
|
||||
output( "\tmovw %%cs,-0x20(%%rbp)\n" );
|
||||
output( "\tmovw %%ds,-0x1e(%%rbp)\n" );
|
||||
output( "\tmovw %%es,-0x1c(%%rbp)\n" );
|
||||
output( "\tmovw %%fs,-0x1a(%%rbp)\n" );
|
||||
output( "\tmovw %%ss,-0x8(%%rbp)\n" );
|
||||
output( "\tmovw %%gs,-0x6(%%rbp)\n" );
|
||||
output( "\tmovq %%rsp,%%r12\n" );
|
||||
output( "\tfxsave64 (%%r12)\n" );
|
||||
output( "\tmovq %%gs:0x30,%%rcx\n" );
|
||||
output( "\tleaq -0x98(%%rbp),%%rbx\n" );
|
||||
output( "\tmovq %%rbx,0x328(%%rcx)\n" ); /* amd64_thread_data()->syscall_frame */
|
||||
output( "\tcmpq $%u,%%rax\n", count );
|
||||
output( "\tjae 3f\n" );
|
||||
output( "\tleaq .Lsyscall_args(%%rip),%%rcx\n" );
|
||||
output( "\tmovzbl (%%rcx,%%rax),%%ecx\n" );
|
||||
output( "\tsubq $0x20,%%rcx\n" );
|
||||
output( "\tjbe 1f\n" );
|
||||
output( "\tsubq %%rcx,%%rsp\n" );
|
||||
output( "\tshrq $3,%%rcx\n" );
|
||||
output( "\tleaq 0x38(%%rbp),%%rsi\n" );
|
||||
output( "\tandq $~15,%%rsp\n\t" );
|
||||
output( "\tmovq %%rsp,%%rdi\n" );
|
||||
output( "\tcld\n" );
|
||||
output( "\trep; movsq\n" );
|
||||
output( "1:\tmovq %%r10,%%rcx\n" );
|
||||
output( "\tsubq $0x20,%%rsp\n" );
|
||||
output( "\tleaq .Lsyscall_table(%%rip),%%r10\n" );
|
||||
output( "\tcallq *(%%r10,%%rax,8)\n" );
|
||||
output( "2:\tmovq %%gs:0x30,%%rcx\n" );
|
||||
output( "\tmovq $0,0x328(%%rcx)\n" );
|
||||
output( "\tfxrstor64 (%%r12)\n" );
|
||||
output( "\tmovq -0x30(%%rbp),%%r15\n" );
|
||||
output( "\tmovq -0x38(%%rbp),%%r14\n" );
|
||||
output( "\tmovq -0x40(%%rbp),%%r13\n" );
|
||||
output( "\tmovq -0x48(%%rbp),%%r12\n" );
|
||||
output_cfi( ".cfi_same_value %%r12" );
|
||||
output( "\tmovq -0x70(%%rbp),%%rdi\n" );
|
||||
output_cfi( ".cfi_same_value %%rdi" );
|
||||
output( "\tmovq -0x78(%%rbp),%%rsi\n" );
|
||||
output_cfi( ".cfi_same_value %%rsi" );
|
||||
output( "\tmovq -0x90(%%rbp),%%rbx\n" );
|
||||
output_cfi( ".cfi_same_value %%rbx" );
|
||||
output( "\tleaq -0x28(%%rbp),%%rsp\n" );
|
||||
output_cfi( ".cfi_def_cfa_register %%rsp" );
|
||||
output_cfi( ".cfi_adjust_cfa_offset 40" );
|
||||
output( "\tmovq (%%rbp),%%rbp\n" );
|
||||
output_cfi( ".cfi_same_value %%rbp" );
|
||||
output( "\tiretq\n" );
|
||||
output( "3:\tmovl $0x%x,%%eax\n", invalid_param );
|
||||
output( "\tjmp 2b\n" );
|
||||
break;
|
||||
case CPU_ARM:
|
||||
output( "\tpush {r5-r11,lr}\n" );
|
||||
output( "\tadd r6, sp, #40\n" ); /* stack parameters */
|
||||
output( "\tldr r5, 6f+8\n" );
|
||||
output( "\tcmp r4, r5\n" );
|
||||
output( "\tbcs 5f\n" );
|
||||
output( "\tsub sp, sp, #8\n" );
|
||||
output( "\tmrc p15, 0, r7, c13, c0, 2\n" ); /* NtCurrentTeb() */
|
||||
output( "\tadd r7, #0x1d8\n" ); /* arm_thread_data()->syscall_frame */
|
||||
output( "\tmrs ip, CPSR\n" );
|
||||
output( "\tstr ip, [sp, #4]\n" );
|
||||
output( "\tstr sp, [r7]\n" ); /* syscall frame */
|
||||
output( "\tldr r5, 6f+4\n");
|
||||
if (UsePIC) output( "1:\tadd r5, pc\n");
|
||||
output( "\tldrb r5, [r5, r4]\n" ); /* syscall args */
|
||||
output( "\tsubs r5, #16\n" ); /* first 4 args are in registers */
|
||||
output( "\tble 3f\n" );
|
||||
output( "\tsub ip, sp, r5\n" );
|
||||
output( "\tand ip, #~7\n" );
|
||||
output( "\tmov sp, ip\n" );
|
||||
output( "2:\tsubs r5, r5, #4\n" );
|
||||
output( "\tldr ip, [r6, r5]\n" );
|
||||
output( "\tstr ip, [sp, r5]\n" );
|
||||
output( "\tbgt 2b\n" );
|
||||
output( "3:\tldr r5, 6f\n");
|
||||
if (UsePIC) output( "4:\tadd r5, pc\n");
|
||||
output( "\tldr ip, [r5, r4, lsl #2]\n"); /* syscall table */
|
||||
output( "\tblx ip\n");
|
||||
output( "\tmov ip, #0\n" );
|
||||
output( "\tstr ip, [r7]\n" );
|
||||
output( "\tsub ip, r6, #40\n" );
|
||||
output( "\tmov sp, ip\n" );
|
||||
output( "\tpop {r5-r11,pc}\n" );
|
||||
output( "5:\tldr r0, 6f+12\n" );
|
||||
output( "\tpop {r5-r11,pc}\n" );
|
||||
if (UsePIC)
|
||||
{
|
||||
output( "6:\t.long .Lsyscall_table-4b-%u\n", thumb_mode ? 4 : 8 );
|
||||
output( "\t.long .Lsyscall_args-1b-%u\n", thumb_mode ? 4 : 8 );
|
||||
}
|
||||
else
|
||||
{
|
||||
output( "6:\t.long .Lsyscall_table\n" );
|
||||
output( "\t.long .Lsyscall_args\n" );
|
||||
}
|
||||
output( "\t.long %u\n", count );
|
||||
output( "\t.long 0x%x\n", invalid_param );
|
||||
break;
|
||||
case CPU_ARM64:
|
||||
output( "\tcmp x8, %u\n", count );
|
||||
output( "\tbcs 3f\n" );
|
||||
output( "\tstp x29, x30, [sp,#-160]!\n" );
|
||||
output_cfi( "\t.cfi_def_cfa_offset 160\n" );
|
||||
output_cfi( "\t.cfi_offset 29, -160\n" );
|
||||
output_cfi( "\t.cfi_offset 30, -152\n" );
|
||||
output( "\tmov x29, sp\n" );
|
||||
output_cfi( "\t.cfi_def_cfa_register 29\n" );
|
||||
output( "\tstp x27, x28, [sp, #144]\n" );
|
||||
output_cfi( "\t.cfi_offset 27, -16\n" );
|
||||
output_cfi( "\t.cfi_offset 28, -8\n" );
|
||||
output( "\tstp x25, x26, [sp, #128]\n" );
|
||||
output_cfi( "\t.cfi_offset 25, -32\n" );
|
||||
output_cfi( "\t.cfi_offset 26, -24\n" );
|
||||
output( "\tstp x23, x24, [sp, #112]\n" );
|
||||
output_cfi( "\t.cfi_offset 23, -48\n" );
|
||||
output_cfi( "\t.cfi_offset 24, -40\n" );
|
||||
output( "\tstp x21, x22, [sp, #96]\n" );
|
||||
output_cfi( "\t.cfi_offset 21, -64\n" );
|
||||
output_cfi( "\t.cfi_offset 22, -56\n" );
|
||||
output( "\tstp x19, x20, [sp, #80]\n" );
|
||||
output_cfi( "\t.cfi_offset 19, -80\n" );
|
||||
output_cfi( "\t.cfi_offset 20, -72\n" );
|
||||
output( "\tstp x6, x7, [sp, #64]\n" );
|
||||
output( "\tstp x4, x5, [sp, #48]\n" );
|
||||
output( "\tstp x2, x3, [sp, #32]\n" );
|
||||
output( "\tstp x0, x1, [sp, #16]\n" );
|
||||
output( "\tmov x20, x8\n" );
|
||||
output( "\tbl %s\n", asm_name("NtCurrentTeb") );
|
||||
output( "\tadd x19, x0, #0x2f8\n" ); /* arm64_thread_data()->syscall_frame */
|
||||
output( "\tstr x29, [x19]\n" );
|
||||
output( "\tldp x0, x1, [sp, #16]\n" );
|
||||
output( "\tldp x2, x3, [sp, #32]\n" );
|
||||
output( "\tldp x4, x5, [sp, #48]\n" );
|
||||
output( "\tldp x6, x7, [sp, #64]\n" );
|
||||
output( "\tadrp x16, %s\n", arm64_page(".Lsyscall_args") );
|
||||
output( "\tadd x16, x16, #%s\n", arm64_pageoff(".Lsyscall_args") );
|
||||
output( "\tldrb w9, [x16, x20]\n" );
|
||||
output( "\tsubs x9, x9, #64\n" );
|
||||
output( "\tbls 2f\n" );
|
||||
output( "\tadd x11, x29, #176\n" );
|
||||
output( "\tsub sp, sp, x9\n" );
|
||||
output( "\ttbz x9, #3, 1f\n" );
|
||||
output( "\tsub sp, sp, #8\n" );
|
||||
output( "1:\tsub x9, x9, #8\n" );
|
||||
output( "\tldr x10, [x11, x9]\n" );
|
||||
output( "\tstr x10, [sp, x9]\n" );
|
||||
output( "\tcbnz x9, 1b\n" );
|
||||
output( "2:\tadrp x16, %s\n", arm64_page(".Lsyscall_table") );
|
||||
output( "\tadd x16, x16, #%s\n", arm64_pageoff(".Lsyscall_table") );
|
||||
output( "\tldr x16, [x16, x20, lsl 3]\n" );
|
||||
output( "\tblr x16\n" );
|
||||
output( "\tmov sp, x29\n" );
|
||||
output( "\tstr xzr, [x19]\n" );
|
||||
output( "\tldp x19, x20, [sp, #80]\n" );
|
||||
output( "\tldp x21, x22, [sp, #96]\n" );
|
||||
output( "\tldp x23, x24, [sp, #112]\n" );
|
||||
output( "\tldp x25, x26, [sp, #128]\n" );
|
||||
output( "\tldp x27, x28, [sp, #144]\n" );
|
||||
output( "\tldp x29, x30, [sp], #160\n" );
|
||||
output( "\tret\n" );
|
||||
output( "3:\tmov x0, #0x%x\n", invalid_param & 0xffff0000 );
|
||||
output( "\tmovk x0, #0x%x\n", invalid_param & 0x0000ffff );
|
||||
output( "\tret\n" );
|
||||
break;
|
||||
default:
|
||||
assert(0);
|
||||
}
|
||||
output_cfi( ".cfi_endproc" );
|
||||
output_function_size( "__wine_syscall_dispatcher" );
|
||||
output_syscall_dispatcher( count );
|
||||
|
||||
output( "\t.data\n" );
|
||||
output( "\t.align %d\n", get_alignment( get_ptr_size() ) );
|
||||
|
|
|
|||
Loading…
Reference in New Issue