Halton (knee) participated during the 49ers' training camp practice Thursday, Chris Biderman of The Sacramento Bee reports.
Toth (concussion) was absent from Thursday's training camp session, Cam Inman of The San Jose Mercury News reports.
Smith and the 49ers agreed on a one-year contract Thursday.
Greenlaw (undisclosed) was a participant in Thursday's training camp session, Cam Inman of The San Jose Mercury News reports.
Odighizuwa (undisclosed) was a participant in Thursday's training camp session, Cam Inman of The San Jose Mercury News reports.
In his return to practice Thursday, Stribling (hamstring) didn't take part in team drills, Matt Barrows of The Athletic reports.
Stribling (hamstring) is in uniform for Thursday's practice, Matt Barrows of The Athletic reports.
Garrett (lower body) participated in the Rams' training camp Wednesday, Gary Klein of the Los Angeles Times reports.
The Rams activated Hamilton (undisclosed) on the active/PUP list Wednesday.
Zakelj (upper body) exited San Francisco's practice Wednesday, Jennifer Lee Chan of NBC Sports Bay Area reports.
