Thank you for your reply. It is currently found that when I upgrade v8 to 6.8, the dynamic_cast function of my other dynamic library will call the has_unambiguous_public_base function in the v8 library. Normally, the C ++ standard library should be called. This phenomenon is very strange. I Compile the monolith version into multiple libraries according to the previous compilation method. Use the following command
*`gn gen out.gn/x64.release --args='is_debug=false target_cpu="x64" v8_static_library=true v8_use_external_startup_data=false'``ninja -C out.gn/x64.release`* However, when the v8 library is introduced into the program, a link error occurs. Some symbols like c ++ abi cannot be linked. Will the upgrade you said solve this problem? Or do my compilation commands need to be modified? 在 2020年2月28日星期五 UTC+8下午7:19:51，Jakob Kummerow写道： > > 6.8 is a year and a half before pointer compression though. Which also > means that 6.8 is obsolete and unsupported. > > On Fri, Feb 28, 2020 at 12:14 PM Ben Noordhuis <in...@bnoordhuis.nl > <javascript:>> wrote: > >> On Fri, Feb 28, 2020 at 4:05 AM YQ Tian <tianyuq...@gmail.com >> <javascript:>> wrote: >> > >> > v8 version 6.8.275.32 >> > >> > Hi all! >> > >> > >> > When I upgrade the v8 version, my program crashes. My program >> statically links the v8 library and also uses another dynamic library. The >> dynamic library will call the dynamic_cast function， to see the crash >> stack of the program. The function enters the has_unambiguous_public_base >> function through __dynamic_cast Called, right here the program crashes. >> Upgrading v8, I used the monolith library instead of multiple previous >> libraries. Through the command `nm` I found that the updated v8 has the >> symbol __dynamic_cast defined. Can anyone help me understand why monolith >> has this symbol? What does the monolith version do? Why does my other >> dynamic library crash? >> >> The monolithic build includes ICU and that uses dynamic_cast in >> numerous places. That said, I doubt that's the reason for the crash. >> >> Search the group for recently reported crashes. In most cases it's a >> matter of ensuring both V8 and your own code are compiled with >> -DV8_COMPRESS_POINTERS. >> >> -- >> -- >> v8-users mailing list >> v8-u...@googlegroups.com <javascript:> >> http://groups.google.com/group/v8-users >> --- >> You received this message because you are subscribed to the Google Groups >> "v8-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to v8-u...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/v8-users/CAHQurc9AJYppATmLM198dt-Q62GGUSjek1yXeFvTUcZO_n%3DM%3DQ%40mail.gmail.com >> . >> > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/adabb3ca-110a-4eb4-8a32-bd60f3f0b30d%40googlegroups.com.
