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Unified Diff: fusl/src/thread/i386/clone.s

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/src/thread/i386/clone.s
diff --git a/fusl/src/thread/i386/clone.s b/fusl/src/thread/i386/clone.s
new file mode 100644
index 0000000000000000000000000000000000000000..52fe7efbd442ca561bc9ddac05216433c9665a45
--- /dev/null
+++ b/fusl/src/thread/i386/clone.s
@@ -0,0 +1,48 @@
+.text
+.global __clone
+.type __clone,@function
+__clone:
+ push %ebp
+ mov %esp,%ebp
+ push %ebx
+ push %esi
+ push %edi
+
+ xor %eax,%eax
+ push $0x51
+ mov %gs,%ax
+ push $0xfffff
+ shr $3,%eax
+ push 28(%ebp)
+ push %eax
+ mov $120,%al
+
+ mov 12(%ebp),%ecx
+ mov 16(%ebp),%ebx
+ and $-16,%ecx
+ sub $16,%ecx
+ mov 20(%ebp),%edi
+ mov %edi,(%ecx)
+ mov 24(%ebp),%edx
+ mov %esp,%esi
+ mov 32(%ebp),%edi
+ mov 8(%ebp),%ebp
+ int $128
+ test %eax,%eax
+ jnz 1f
+
+ mov %ebp,%eax
+ xor %ebp,%ebp
+ call *%eax
+ mov %eax,%ebx
+ xor %eax,%eax
+ inc %eax
+ int $128
+ hlt
+
+1: add $16,%esp
+ pop %edi
+ pop %esi
+ pop %ebx
+ pop %ebp
+ ret
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