util: implements "writefile" gem5 op to export file from guest to host filesystem

Usage: m5 writefile <filename>

File will be created in the gem5 output folder with the identical filename.
Implementation is largely based on the existing "readfile" functionality.
Currently does not support exporting of folders.

1 files changed, 1 insertions, 0 deletions

diff --git a/util/m5/m5op.h b/util/m5/m5op.h
index 38815e3c3..4e1d0b638 100644
--- a/util/m5/m5op.h
+++ b/util/m5/m5op.h
@@ -49,6 +49,7 @@ void m5_reset_stats(uint64_t ns_delay, uint64_t ns_period);
 void m5_dump_stats(uint64_t ns_delay, uint64_t ns_period);
 void m5_dumpreset_stats(uint64_t ns_delay, uint64_t ns_period);
 uint64_t m5_readfile(void *buffer, uint64_t len, uint64_t offset);
+uint64_t m5_writefile(void *buffer, uint64_t len, uint64_t offset, const char *filename);
 void m5_debugbreak(void);
 void m5_switchcpu(void);
 void m5_addsymbol(uint64_t addr, char *symbol);