diff options
| author | Timur Tabi <timur@freescale.com> | 2010-04-13 13:16:03 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-05-05 22:17:34 +0200 |
| commit | 4b42c9059e165500353174601a8e97b2cf81d3f4 (patch) | |
| tree | 30608de1b0b5314a5320d36dd9c102dc3bf8b324 /lib | |
| parent | 52dbac69c27dee67a4c051b1055d93b0ac4e2062 (diff) | |
allow print_size to print large numbers on 32-bit systems
Modify print_size() so that it can accept numbers larger than 4GB on 32-bit
systems.
Add support for display terabyte, petabyte, and exabyte sizes. Change the
output to use International Electrotechnical Commission binary prefix standard.
Signed-off-by: Timur Tabi <timur@freescale.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/display_options.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/lib/display_options.c b/lib/display_options.c index 08a7914a1d0..86df05d9e5d 100644 --- a/lib/display_options.c +++ b/lib/display_options.c @@ -39,25 +39,30 @@ int display_options (void) } /* - * print sizes as "xxx kB", "xxx.y kB", "xxx MB", "xxx.y MB", - * xxx GB, or xxx.y GB as needed; allow for optional trailing string + * print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB", + * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string * (like "\n") */ -void print_size (phys_size_t size, const char *s) +void print_size(unsigned long long size, const char *s) { unsigned long m = 0, n; - unsigned long long d = 1 << 30; /* 1 GB */ - char c = 'G'; - - if (size < d) { /* try MB */ - c = 'M'; - d = 1 << 20; - if (size < d) { /* print in kB */ - c = 'k'; - d = 1 << 10; + static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'}; + unsigned long long d = 1ULL << (10 * ARRAY_SIZE(names)); + char c = 0; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(names); i++, d >>= 10) { + if (size >= d) { + c = names[i]; + break; } } + if (!c) { + printf("%llu Bytes%s", size, s); + return; + } + n = size / d; /* If there's a remainder, deal with it */ @@ -70,11 +75,11 @@ void print_size (phys_size_t size, const char *s) } } - printf ("%2ld", n); + printf ("%lu", n); if (m) { printf (".%ld", m); } - printf (" %cB%s", c, s); + printf (" %ciB%s", c, s); } /* |