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fix "undefined symbol: zefi_stack_swap" #11

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merged 1 commit into from
Sep 10, 2024
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fix "undefined symbol: zefi_stack_swap" #11

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231 changes: 115 additions & 116 deletions src/coro/zefi.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -142,6 +142,9 @@ extern fn zefi_stack_swap(
noalias current_context_ptr: **anyopaque,
noalias new_context_ptr: **anyopaque,
) void;
comptime {
asm (StackContext.assembly);
}

const StackContext = switch (builtin.cpu.arch) {
.x86_64 => switch (builtin.os.tag) {
Expand All @@ -157,64 +160,62 @@ const Intel_Microsoft = struct {

pub const entry_offset = word_count - 1;

comptime {
asm (
\\.global zefi_stack_swap
\\zefi_stack_swap:
\\ pushq %gs:0x10
\\ pushq %gs:0x08
\\
\\ pushq %rbx
\\ pushq %rbp
\\ pushq %rdi
\\ pushq %rsi
\\ pushq %r12
\\ pushq %r13
\\ pushq %r14
\\ pushq %r15
\\
\\ subq $160, %rsp
\\ movups %xmm6, 0x00(%rsp)
\\ movups %xmm7, 0x10(%rsp)
\\ movups %xmm8, 0x20(%rsp)
\\ movups %xmm9, 0x30(%rsp)
\\ movups %xmm10, 0x40(%rsp)
\\ movups %xmm11, 0x50(%rsp)
\\ movups %xmm12, 0x60(%rsp)
\\ movups %xmm13, 0x70(%rsp)
\\ movups %xmm14, 0x80(%rsp)
\\ movups %xmm15, 0x90(%rsp)
\\
\\ movq %rsp, (%rcx)
\\ movq (%rdx), %rsp
\\
\\ movups 0x00(%rsp), %xmm6
\\ movups 0x10(%rsp), %xmm7
\\ movups 0x20(%rsp), %xmm8
\\ movups 0x30(%rsp), %xmm9
\\ movups 0x40(%rsp), %xmm10
\\ movups 0x50(%rsp), %xmm11
\\ movups 0x60(%rsp), %xmm12
\\ movups 0x70(%rsp), %xmm13
\\ movups 0x80(%rsp), %xmm14
\\ movups 0x90(%rsp), %xmm15
\\ addq $160, %rsp
\\
\\ popq %r15
\\ popq %r14
\\ popq %r13
\\ popq %r12
\\ popq %rsi
\\ popq %rdi
\\ popq %rbp
\\ popq %rbx
\\
\\ popq %gs:0x08
\\ popq %gs:0x10
\\
\\ retq
);
}
pub const assembly =
\\.global zefi_stack_swap
\\zefi_stack_swap:
\\ pushq %gs:0x10
\\ pushq %gs:0x08
\\
\\ pushq %rbx
\\ pushq %rbp
\\ pushq %rdi
\\ pushq %rsi
\\ pushq %r12
\\ pushq %r13
\\ pushq %r14
\\ pushq %r15
\\
\\ subq $160, %rsp
\\ movups %xmm6, 0x00(%rsp)
\\ movups %xmm7, 0x10(%rsp)
\\ movups %xmm8, 0x20(%rsp)
\\ movups %xmm9, 0x30(%rsp)
\\ movups %xmm10, 0x40(%rsp)
\\ movups %xmm11, 0x50(%rsp)
\\ movups %xmm12, 0x60(%rsp)
\\ movups %xmm13, 0x70(%rsp)
\\ movups %xmm14, 0x80(%rsp)
\\ movups %xmm15, 0x90(%rsp)
\\
\\ movq %rsp, (%rcx)
\\ movq (%rdx), %rsp
\\
\\ movups 0x00(%rsp), %xmm6
\\ movups 0x10(%rsp), %xmm7
\\ movups 0x20(%rsp), %xmm8
\\ movups 0x30(%rsp), %xmm9
\\ movups 0x40(%rsp), %xmm10
\\ movups 0x50(%rsp), %xmm11
\\ movups 0x60(%rsp), %xmm12
\\ movups 0x70(%rsp), %xmm13
\\ movups 0x80(%rsp), %xmm14
\\ movups 0x90(%rsp), %xmm15
\\ addq $160, %rsp
\\
\\ popq %r15
\\ popq %r14
\\ popq %r13
\\ popq %r12
\\ popq %rsi
\\ popq %rdi
\\ popq %rbp
\\ popq %rbx
\\
\\ popq %gs:0x08
\\ popq %gs:0x10
\\
\\ retq
;
};

const symbol = switch (builtin.target.os.tag) {
Expand All @@ -227,69 +228,67 @@ const Intel_SysV = struct {

pub const entry_offset = word_count - 1;

comptime {
asm (std.fmt.comptimePrint(
\\.global {[symbol]s}
\\{[symbol]s}:
\\ pushq %rbx
\\ pushq %rbp
\\ pushq %r12
\\ pushq %r13
\\ pushq %r14
\\ pushq %r15
\\
\\ movq %rsp, (%rdi)
\\ movq (%rsi), %rsp
\\
\\ popq %r15
\\ popq %r14
\\ popq %r13
\\ popq %r12
\\ popq %rbp
\\ popq %rbx
\\
\\ retq
, .{ .symbol = symbol }));
}
pub const assembly =
std.fmt.comptimePrint(
\\.global {[symbol]s}
\\{[symbol]s}:
\\ pushq %rbx
\\ pushq %rbp
\\ pushq %r12
\\ pushq %r13
\\ pushq %r14
\\ pushq %r15
\\
\\ movq %rsp, (%rdi)
\\ movq (%rsi), %rsp
\\
\\ popq %r15
\\ popq %r14
\\ popq %r13
\\ popq %r12
\\ popq %rbp
\\ popq %rbx
\\
\\ retq
, .{ .symbol = symbol });
};

const Arm_64 = struct {
pub const word_count = 20;

pub const entry_offset = 0;

comptime {
asm (std.fmt.comptimePrint(
\\.global {[symbol]s}
\\{[symbol]s}:
\\ stp lr, fp, [sp, #-20*8]!
\\ stp d8, d9, [sp, #2*8]
\\ stp d10, d11, [sp, #4*8]
\\ stp d12, d13, [sp, #6*8]
\\ stp d14, d15, [sp, #8*8]
\\ stp x19, x20, [sp, #10*8]
\\ stp x21, x22, [sp, #12*8]
\\ stp x23, x24, [sp, #14*8]
\\ stp x25, x26, [sp, #16*8]
\\ stp x27, x28, [sp, #18*8]
\\
\\ mov x9, sp
\\ str x9, [x0]
\\ ldr x9, [x1]
\\ mov sp, x9
\\
\\ ldp x27, x28, [sp, #18*8]
\\ ldp x25, x26, [sp, #16*8]
\\ ldp x23, x24, [sp, #14*8]
\\ ldp x21, x22, [sp, #12*8]
\\ ldp x19, x20, [sp, #10*8]
\\ ldp d14, d15, [sp, #8*8]
\\ ldp d12, d13, [sp, #6*8]
\\ ldp d10, d11, [sp, #4*8]
\\ ldp d8, d9, [sp, #2*8]
\\ ldp lr, fp, [sp], #20*8
\\
\\ ret
, .{ .symbol = symbol }));
}
pub const assembly =
std.fmt.comptimePrint(
\\.global {[symbol]s}
\\{[symbol]s}:
\\ stp lr, fp, [sp, #-20*8]!
\\ stp d8, d9, [sp, #2*8]
\\ stp d10, d11, [sp, #4*8]
\\ stp d12, d13, [sp, #6*8]
\\ stp d14, d15, [sp, #8*8]
\\ stp x19, x20, [sp, #10*8]
\\ stp x21, x22, [sp, #12*8]
\\ stp x23, x24, [sp, #14*8]
\\ stp x25, x26, [sp, #16*8]
\\ stp x27, x28, [sp, #18*8]
\\
\\ mov x9, sp
\\ str x9, [x0]
\\ ldr x9, [x1]
\\ mov sp, x9
\\
\\ ldp x27, x28, [sp, #18*8]
\\ ldp x25, x26, [sp, #16*8]
\\ ldp x23, x24, [sp, #14*8]
\\ ldp x21, x22, [sp, #12*8]
\\ ldp x19, x20, [sp, #10*8]
\\ ldp d14, d15, [sp, #8*8]
\\ ldp d12, d13, [sp, #6*8]
\\ ldp d10, d11, [sp, #4*8]
\\ ldp d8, d9, [sp, #2*8]
\\ ldp lr, fp, [sp], #20*8
\\
\\ ret
, .{ .symbol = symbol });
};