On Mon, Jan 15, 2018 at 9:09 AM, <tonywalker...@gmail.com> wrote: > > I'm doing more experiments with created shared-object files with functions > that override syscalls and I've hit something I'd like to see if you guys > can help with. > > See a cut-down version of what I'm doing here > > There are 2 problems.. > > 1. If I run LD_PRELOAD=my.so ls - ls hangs completely. If however I remove > the reference to fopen and rebuild the library - it works fine.
No idea. You'll have to debug this to see where it is going wrong. > 2. When I compile I get "could not determine kind of name for C.fopen64". > Both fopen and fopen64 are defined within my stdio header file so why > doesn't the compiler complain about fopen? If I change line 26 to fopen I > can get round this problem but will likely hit issues with large files. You neglected to say which system you are running on. If it's GNU/Linux, note that fopen64 is not declared by default. It's only declared if define the C preprocessor macro _LARGEFILE64_SOURCE while compiling the file. You may need a #cgo CFLAGS: line to add a -D option. Ian -- 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. For more options, visit https://groups.google.com/d/optout.
