Why does this endup in DRAM instead of flash?
Posted: Wed Nov 06, 2019 5:12 pm
I'm currently trying to compile a library for the esp32. Some parts already work, but I'm overruning dram when linking. I changed the esp32_out.ld file to fake more available dram, so I can link and inspect the resulting firmware.elf
I see that the following definitions end up in dram:
The definition of ResizeFunc is
I marked them with const - shouldn't they be put in flash then rather than dram?
I also don't really get how this array can end up being 260kb in size...
I should add: I'm first compiling the library into a static .a library before then linking it into my app
//edit:
uuuuh, i just noticed that the library defines these arrays in a namespace named "hal". I take it that's the source of the problem? It's not compiled into a library named libhal.a however
I see that the following definitions end up in dram:
Code: Select all
const ResizeFunc lanczos4_tab[] =
{
resizeGeneric_<HResizeLanczos4<uchar, int, short>,
VResizeLanczos4<uchar, int, short,
FixedPtCast<int, uchar, INTER_RESIZE_COEF_BITS*2>,
VResizeNoVec> >,
0,
resizeGeneric_<HResizeLanczos4<ushort, float, float>,
VResizeLanczos4<ushort, float, float, Cast<float, ushort>,
VResizeLanczos4Vec_32f16u> >,
resizeGeneric_<HResizeLanczos4<short, float, float>,
VResizeLanczos4<short, float, float, Cast<float, short>,
VResizeLanczos4Vec_32f16s> >,
0,
resizeGeneric_<HResizeLanczos4<float, float, float>,
VResizeLanczos4<float, float, float, Cast<float, float>,
VResizeLanczos4Vec_32f> >,
resizeGeneric_<HResizeLanczos4<double, double, float>,
VResizeLanczos4<double, double, float, Cast<double, double>,
VResizeNoVec> >,
0
};Code: Select all
3ffed108 l O .dram0.bss 40000 _ZN2cvL13Lanczos4Tab_fE
3ffcd106 l O .dram0.bss 20000 _ZN2cvL13Lanczos4Tab_iE
40035108 l O .dram0.bss 10000 _ZN2cvL12BicubicTab_fE
4002d108 l O .dram0.bss 8000 _ZN2cvL12BicubicTab_iE
40047108 l O .dram0.bss 4000 _ZN2cvL13BilinearTab_fE
40045108 l O .dram0.bss 2000 _ZN2cvL13BilinearTab_iE
Code: Select all
typedef void (*ResizeFunc)( const Mat& src, Mat& dst,
const int* xofs, const void* alpha,
const int* yofs, const void* beta,
int xmin, int xmax, int ksize );I also don't really get how this array can end up being 260kb in size...
I should add: I'm first compiling the library into a static .a library before then linking it into my app
//edit:
uuuuh, i just noticed that the library defines these arrays in a namespace named "hal". I take it that's the source of the problem? It's not compiled into a library named libhal.a however