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"C programming"
How can you see which code a module executes when your app calls an ioctl system call?
Consider this situation:
You app gets to the point where it executes an ioctl syscall and returns an error, e.g.
if (ioctl(fd, STVMIX_IOC_DISCONNECTLAYERS, &STVMIX_Ioctl_DisconnectLayers) != 0) { /* IOCTL failed */ ErrorCode = ST_ERROR_BAD_PARAMETER; printf (” STVMIX_DisconnectLayers():Ioctl error […]
How can we map the enum values to strings in the C programing language?
Often times you need to display a C enum as a string, most often when debugging or handling error conditions.
Typical techiques involve usually: a) defining an array of strings (the strings being the enum names of course, and the string […]
This post will be dedicated to gcc’s command line options and various other questions related to compiling/building your code with gcc. For example…
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How can I get gcc to generate assembly code for my C file:
gcc -O2 -S -c foo.c
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How can I tell gcc to generate […]
