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Support aligned access for selected Arm processors. #1871

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merged 3 commits into from
Oct 19, 2020
Merged

Support aligned access for selected Arm processors. #1871

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73c195e
Support aligned access for selected Arm processors.
DennisHeimbigner Oct 17, 2020
26bf818
Revise the arm test per https://github.com/Unidata/netcdf-c/issues/18…
DennisHeimbigner Oct 19, 2020
044a4b2
Suppress notused warnings
DennisHeimbigner Oct 19, 2020
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8 changes: 8 additions & 0 deletions libdap4/d4util.c
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Original file line number Diff line number Diff line change
Expand Up @@ -459,3 +459,11 @@ NCD4_errorNC(int code, const int line, const char* file)
{
return NCD4_error(code,line,file,nc_strerror(code));
}

d4size_t
NCD4_getcounter(void* p)
{
COUNTERTYPE v;
memcpy(&v,p,sizeof(v));
return (d4size_t)v;
}
10 changes: 10 additions & 0 deletions libdap4/ncd4.h
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Expand Up @@ -197,7 +197,17 @@ extern int nc__dap4(void);

#undef GETCOUNTER
#undef SKIPCOUNTER

/* Unclear which macros are defined for which compilers.
see: https://sourceforge.net/p/predef/wiki/Architectures/
*/
#if defined(__arm__) && __ARM_ARCH < 8
EXTERNL d4size_t NCD4_getcounter(void* p);
#define GETCOUNTER(p) NCD4_getcounter(p)
#else
#define GETCOUNTER(p) ((d4size_t)*((COUNTERTYPE*)(p)))
#endif /*defined(__arm__) && __ARM_ARCH < 8*/

#define SKIPCOUNTER(p) {p=INCR(p,COUNTERSIZE);}

#undef PUSH
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