RTEMS: Prefer int for int32_t
Common systems like glibc and FreeBSD define int32_t to int. This means a lot of third party code works well in these cases: #include <stdint.h> void f(int32_t); void f(int); void g(int32_t *); void h(void) { int i; g(&i); } On RTEMS you got however in C test.c:5:6: error: conflicting types for 'f' void f(int); ^ test.c:3:6: note: previous declaration of 'f' was here void f(int32_t); ^ test.c: In function 'h': test.c:12:4: warning: passing argument 1 of 'g' from incompatible pointer type [-Wincompatible-pointer-types] g(&i); ^ test.c:7:6: note: expected 'int32_t * {aka long int *}' but argument is of type 'int *' void g(int32_t *); and C++ test.c: In function 'void h()': test.c:12:4: error: invalid conversion from 'int*' to 'int32_t* {aka long int*}' [-fpermissive] g(&i); ^~ test.c:7:6: note: initializing argument 1 of 'void g(int32_t*)' void g(int32_t *); ^ This was due to a Newlib speciality which uses long for int32_t if long is a 32-bit type. To ease the use of third party software in RTEMS we override this Newlib option now and use int for int32_t if int is a 32-bit type. gcc/ * config/rtems.h (STDINT_LONG32): Define. From-SVN: r261584
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2018-06-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
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Backport from mainline
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2018-06-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* config/rtems.h (STDINT_LONG32): Define.
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2018-06-11 Peter Bergner <bergner@vnet.ibm.com>
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Backport from mainline
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-latomic -lc -lgcc --end-group %{!qnolinkcmds: -T linkcmds%s}}}"
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#define TARGET_POSIX_IO
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/* Prefer int for int32_t (see stdint-newlib.h). */
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#undef STDINT_LONG32
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#define STDINT_LONG32 (INT_TYPE_SIZE != 32 && LONG_TYPE_SIZE == 32)
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