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Workaround strict-aliasing warnings and added missing pgm_read_ptr define (#996)

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See: https://travis-ci.org/felis/USB_Host_Shield_2.0/jobs/328511332 and 8a02ea67f5 (diff-6e1ff9551639ac89d99617863bf84e10)
This commit is contained in:
Kristian Sloth Lauszus 2018-01-18 00:02:20 +01:00 committed by Me No Dev
parent 964287727f
commit 78acedd2cf
1 changed files with 18 additions and 3 deletions
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21
cores/esp32/pgmspace.h
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@ -37,18 +37,33 @@ typedef unsigned long prog_uint32_t;
#define _SFR_BYTE(n) (n)
#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#define pgm_read_word(addr) (*(const unsigned short *)(addr))
#define pgm_read_dword(addr) (*(const unsigned long *)(addr))
#define pgm_read_float(addr) (*(const float *)(addr))
#define pgm_read_word(addr) ({ \
typeof(addr) _addr = (addr); \
*(const unsigned short *)(_addr); \
})
#define pgm_read_dword(addr) ({ \
typeof(addr) _addr = (addr); \
*(const unsigned long *)(_addr); \
})
#define pgm_read_float(addr) ({ \
typeof(addr) _addr = (addr); \
*(const float *)(_addr); \
})
#define pgm_read_ptr(addr) ({ \
typeof(addr) _addr = (addr); \
*(void * const *)(_addr); \
})
#define pgm_read_byte_near(addr) pgm_read_byte(addr)
#define pgm_read_word_near(addr) pgm_read_word(addr)
#define pgm_read_dword_near(addr) pgm_read_dword(addr)
#define pgm_read_float_near(addr) pgm_read_float(addr)
#define pgm_read_ptr_near(addr) pgm_read_ptr(addr)
#define pgm_read_byte_far(addr) pgm_read_byte(addr)
#define pgm_read_word_far(addr) pgm_read_word(addr)
#define pgm_read_dword_far(addr) pgm_read_dword(addr)
#define pgm_read_float_far(addr) pgm_read_float(addr)
#define pgm_read_ptr_far(addr) pgm_read_ptr(addr)
#define memcmp_P memcmp
#define memccpy_P memccpy