0b72631a82
Currently, the compiler generates the argument stack map based on the function signature for bodyless function declarations, if it is not linknamed. The assumption is that linknamed function is provided by (Go code in) another package, so its args stack map will be generated when compiling that package. Now we have linknames added to declarations of assembly functions, to signal that this function is accessed externally. Examples include runtime.morestack_noctxt, math/big.addVV. In the current implementation the compiler does not generate its args stack map. That causes the assembly function's args stack map missing. Instead, change it to generate the stack map if it is a declaration of an ABI0 function, which can only be defined in assembly and passed to the compiler through the -symabis flag. The stack map generation currently only works with ABI0 layout anyway, so we don't need to handle ABIInternal assembly functions. Change-Id: Ic9da3b4854c604e64ed01584da3865994f5b95b8 Reviewed-on: https://go-review.googlesource.com/c/go/+/587928 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Than McIntosh <thanm@google.com> |
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