more destructive changes

README.adoc

@@ -8491,8 +8491,8 @@ List all available debug flags:
 but to understand most of them you have to look at the source code:
 
 ....
-less "$(./getvar gem5_src_dir)/src/cpu/SConscript"
-less "$(./getvar gem5_src_dir)/src/cpu/exetrace.cc"
+less "$(./getvar gem5_source_dir)/src/cpu/SConscript"
+less "$(./getvar gem5_source_dir)/src/cpu/exetrace.cc"
 ....
 
 The traces are generated from `DPRINTF(<trace-id>` calls scattered throughout the code.
@@ -9903,7 +9903,7 @@ The `--gem5-script biglittle` option enables the alternative `configs/example/ar
 First apply:
 
 ....
-patch -d "$(./getvar gem5_src_dir)" -p 1 < patches/manual/gem5-biglittle.patch
+patch -d "$(./getvar gem5_source_dir)" -p 1 < patches/manual/gem5-biglittle.patch
 ....
 
 then:
@@ -10373,7 +10373,7 @@ Bibliography:
 For gem5, you need:
 
 ....
-patch -d "$(./getvar gem5_src_dir)" -p 1 < patches/manual/gem5-semihost.patch
+patch -d "$(./getvar gem5_source_dir)" -p 1 < patches/manual/gem5-semihost.patch
 ....
 
 https://stackoverflow.com/questions/52475268/how-to-enable-arm-semihosting-in-gem5/52475269#52475269
@@ -11432,17 +11432,17 @@ Analogous to the <<linux-kernel-build-variants>> but with the `--gem5-build-id`
 ./build-gem5
 
 # Build another branch.
-git -C "$(./getvar gem5_src_dir)" checkout some-branch
+git -C "$(./getvar gem5_source_dir)" checkout some-branch
 ./build-gem5 --gem5-build-id some-branch
 
 # Restore master.
-git -C "$(./getvar gem5_src_dir)" checkout -
+git -C "$(./getvar gem5_source_dir)" checkout -
 
 # Run master.
 ./run --gem5
 
 # Run another branch.
-git -C "$(./getvar gem5_src_dir)" checkout some-branch
+git -C "$(./getvar gem5_source_dir)" checkout some-branch
 ./run --gem5-build-id some-branch --gem5
 ....