[ +thanm, cherryyz ] On Sun, Apr 3, 2022 at 8:49 AM Lanzhiguan Huang <huanglanzhig...@gmail.com> wrote: > > Hello, > By investigating the source code of gollvm and attempting to fix some bugs > in GoStatepoints.cpp, I have some questions about the current GC > implementation: > 1. Can an object pointer live in a callee-saved register and live through a > call, recorded in the corresponding stackmap? Since gollvm uses the sysv64ABI > for amd64, I think the current implementation seems to ignore this register > part. In "emitCallsiteEntries" it only emits the pointer map of the current > stack. > 2. When GC is triggered, during the unwinding process, the > "scanstackwithmap_callback" should also test the regmap and mark the pointers > that live in the registers > 3. How to deal with the C stacks of the C runtime functions? Currently we > don't have stackmaps generated for them. > > Thanks. > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/e25a42b4-f1a6-49db-a273-92685bdd1185n%40googlegroups.com.
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