src/utils.h

Mon, 14 Jan 2013 09:50:37 +0000

author
Philip Pemberton <philpem@philpem.me.uk>
date
Mon, 14 Jan 2013 09:50:37 +0000
changeset 120
df40e6668a46
parent 98
d1af20db5f02
child 143
0fa6f5a480a6
permissions
-rw-r--r--

Max out system memory by default

Set the system memory to 2MiB base, 2MiB ext. This is a fully loaded 3B1
motherboard with a RAM expansion board. 512KiB base/no ext is the minimum
which can be specified (e.g. kernel memory map area only) but does not leave
any room for userspace. The kernel doesn't like that and doesn't handle it
gracefully...!

philpem@88 1 #ifndef _UTILS_H
philpem@88 2 #define _UTILS_H
philpem@71 3
philpem@89 4 #include <stdio.h>
philpem@89 5
philpem@71 6 #ifndef NDEBUG
philpem@71 7 /// Log a message to stderr
philpem@71 8 # define LOG(x, ...) do { fprintf(stderr, "%s:%d:%s(): " x "\n", __FILE__, __LINE__, __PRETTY_FUNCTION__, ##__VA_ARGS__); } while (0)
philpem@98 9 # define LOGS(x) do { fprintf(stderr, "%s:%d:%s(): " x "\n", __FILE__, __LINE__, __PRETTY_FUNCTION__); } while (0)
philpem@71 10 /// Log a message to stderr if 'cond' is true
philpem@71 11 # define LOG_IF(cond, x, ...) do { if (cond) fprintf(stderr, "%s:%d:%s(): " x "\n", __FILE__, __LINE__, __PRETTY_FUNCTION__, ##__VA_ARGS__); } while (0)
philpem@98 12 # define LOG_IFS(cond, x) do { if (cond) fprintf(stderr, "%s:%d:%s(): " x "\n", __FILE__, __LINE__, __PRETTY_FUNCTION__); } while (0)
philpem@71 13 #else
philpem@71 14 #define LOG(x, ...)
philpem@98 15 #define LOGS(x)
philpem@71 16 #define LOG_IF(cond, x, ...)
philpem@98 17 #define LOG_IFS(cond, x)
philpem@71 18 #endif
philpem@71 19
philpem@88 20 /// Get the number of elements in an array
philpem@88 21 #define NELEMS(x) (sizeof(x)/sizeof(x[0]))
philpem@88 22
philpem@71 23 #endif // _H_UTILS