Hi Kyrill, Thank you for your response. I looked at GCC RTL tests and I saw that the RTL format in these files is embedded in C functions and slightly different from the one in dump files generated with -fdump-rtl-expand option. So for large scale analysis, do you think that writing a GCC plugin is a reliable solution for my use case ? thanks
Yacine 2017-12-18 13:31 GMT+01:00 Kyrill Tkachov <kyrylo.tkac...@foss.arm.com>: > Hi, > > > On 18/12/17 10:30, HEBBAL Yacine wrote: > >> Hello, >> In one of my projects, I need to determine automatically what are the >> names >> and types of data fields manipulated by functions in binary code of a >> given >> program (e.g. Linux kernel). >> I found that RTL dumps contains most of information I need in a form very >> close to the one of the binary code. >> For this end, I need to parse generated RTL expressions in order to >> extract >> operands properties. >> Is it possible to load and parse RTL expressions from textual dump files >> using existing code in GCC ? Thanks >> > > Since version 7 GCC does contain functionality to parse RTL input. > This is mostly used for writing more targeted unit tests for the RTL > passes. > Have a look at https://gcc.gnu.org/onlinedocs/gccint/RTL-Tests.html or > grep for "__RTL" > in the gcc testsuite (gcc/testsuite in the source tree) to see examples of > how it's used. > > Not sure how useful it will be for large-scale analysis of source code > though. > You may want to write/use a GCC plugin for that. > > Kyrill > > P.S. This list is used for discussions about the development of GCC itself. > For help using GCC please use the gcc-help list in the future. >
