diff options
| author | Stephen Warren <swarren@wwwdotorg.org> | 2015-10-03 13:56:46 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-10-24 13:50:33 -0400 |
| commit | 7861204c9af7fec1ea9b41541c272516235a6c93 (patch) | |
| tree | 71f27353e0ccfd62147a6fa10f88f234218dc209 /common/cmd_itest.c | |
| parent | 40d2154726fd77698103419923a406f051a7199d (diff) | |
itest: make memory access work under sandbox
itest accesses memory, and hence must map/unmap it. Without doing so, it
accesses invalid addresses and crashes.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/cmd_itest.c')
| -rw-r--r-- | common/cmd_itest.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/common/cmd_itest.c b/common/cmd_itest.c index 76af62b46e..596341c963 100644 --- a/common/cmd_itest.c +++ b/common/cmd_itest.c @@ -15,6 +15,9 @@ #include <common.h> #include <config.h> #include <command.h> +#include <mapmem.h> + +#include <asm/io.h> #define EQ 0 #define NE 1 @@ -49,16 +52,24 @@ static const op_tbl_t op_table [] = { static long evalexp(char *s, int w) { long l = 0; - long *p; + unsigned long addr; + void *buf; /* if the parameter starts with a * then assume is a pointer to the value we want */ if (s[0] == '*') { - p = (long *)simple_strtoul(&s[1], NULL, 16); + addr = simple_strtoul(&s[1], NULL, 16); + buf = map_physmem(addr, w, MAP_WRBACK); + if (!buf) { + puts("Failed to map physical memory\n"); + return 0; + } switch (w) { - case 1: return((long)(*(unsigned char *)p)); - case 2: return((long)(*(unsigned short *)p)); - case 4: return(*p); + case 1: l = (long)(*(unsigned char *)buf); + case 2: l = (long)(*(unsigned short *)buf); + case 4: l = (long)(*(unsigned long *)buf); } + unmap_physmem(buf, w); + return l; } else { l = simple_strtoul(s, NULL, 16); } |