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prefix assembly functions with _ on macos

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Brendan Hansknecht 2023-06-02 15:10:14 -07:00
parent 60babcc56e
commit 341ef9bb7b
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7 changed files with 84 additions and 72 deletions
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14
crates/compiler/builtins/bitcode/src/libc/folly/memcpy-x86_64.S
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@ -71,8 +71,8 @@
*/
# .type __folly_memcpy_short_{[prefetch]s}, @function not supported by windows
__folly_memcpy_short_{[prefetch]s}:
# .type {[function_prefix]s}__folly_memcpy_short_{[prefetch]s}, @function not supported by windows
{[function_prefix]s}__folly_memcpy_short_{[prefetch]s}:
.cfi_startproc
.L_GE1_LE7_{[prefetch]s}:
@ -106,7 +106,7 @@ __folly_memcpy_short_{[prefetch]s}:
ret
.cfi_endproc
# .size __folly_memcpy_short_{[prefetch]s}, .-__folly_memcpy_short_{[prefetch]s} not supported by windows
# .size {[function_prefix]s}__folly_memcpy_short_{[prefetch]s}, .-{[function_prefix]s}__folly_memcpy_short_{[prefetch]s} not supported by windows
// memcpy is an alternative entrypoint into the function named __folly_memcpy.
// The compiler is able to call memcpy since the name is global while
@ -114,10 +114,10 @@ __folly_memcpy_short_{[prefetch]s}:
// This is intended to aid in debugging by making it obvious which version of
// memcpy is being used.
.balign 64
.globl __folly_memcpy_{[prefetch]s}
# .type __folly_memcpy_{[prefetch]s}, @function not supported by windows
.globl {[function_prefix]s}__folly_memcpy_{[prefetch]s}
# .type {[function_prefix]s}__folly_memcpy_{[prefetch]s}, @function not supported by windows
__folly_memcpy_{[prefetch]s}:
{[function_prefix]s}__folly_memcpy_{[prefetch]s}:
.cfi_startproc
mov %rdi, %rax # return: $rdi
@ -434,4 +434,4 @@ __folly_memcpy_{[prefetch]s}:
ret
.cfi_endproc
# .size __folly_memcpy_{[prefetch]s}, .-__folly_memcpy_{[prefetch]s} not supported by windows
# .size {[function_prefix]s}__folly_memcpy_{[prefetch]s}, .-{[function_prefix]s}__folly_memcpy_{[prefetch]s} not supported by windows

3
crates/compiler/builtins/bitcode/src/libc/folly/memcpy.zig
View file

@ -1,12 +1,13 @@
const std = @import("std");
const builtin = @import("builtin");
const arch = builtin.cpu.arch;
const function_prefix = @import("../assembly_util.zig").function_prefix;
comptime {
switch (arch) {
.x86_64 => {
inline for ([_][]const u8{ "prefetchw", "prefetcht0" }) |prefetch| {
asm (std.fmt.comptimePrint(@embedFile("memcpy-x86_64.S"), .{ .prefetch = prefetch }));
asm (std.fmt.comptimePrint(@embedFile("memcpy-x86_64.S"), .{ .prefetch = prefetch, .function_prefix = function_prefix }));
}
},
else => unreachable,