From 5e837387aa7260518cf43f53b66ee917d8660802 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 12 Oct 2009 02:39:18 -0700 Subject: simplify XScale debug handler installation Load the XScale debug handler from the read-only data section instead of from a separate file that can get lost or garbaged. This eliminates installation and versioning issues, and also speeds up reset handling a bit. Plus some minor bits of cleanup related to loading that handler: comments about just what this handler does, and check fault codes while writing it into the mini-icache. The only behavioral changes should be cleaner failure modes after errors during handler loading, and being a bit faster. NOTE: presumes GNU assembly syntax, with ".incbin"; and ELF, because of the syntax of the ".size" directive. Signed-off-by: David Brownell --- src/target/xscale.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/target/xscale.h') diff --git a/src/target/xscale.h b/src/target/xscale.h index a5d83ee6..9d92550a 100644 --- a/src/target/xscale.h +++ b/src/target/xscale.h @@ -170,4 +170,10 @@ enum #define ERROR_XSCALE_NO_TRACE_DATA (-1500) +/* This XScale "debug handler" is loaded into the processor's + * mini-ICache, which is 2K of code writable only via JTAG. + */ +extern const uint8_t xscale_debug_handler[]; +extern const uint32_t xscale_debug_handler_size; + #endif /* XSCALE_H */ -- cgit v1.2.3