libperf: Use sys/types.h to get ssize_t, not unistd.h

The sys/types.h header looks more sensible, from its name we can gather it should be there because of some needed typedef, and it is much smaller than unistd.h, so use it and fix up the fallout in places where it was being used for something else entirely but being obtained by sheer luck, indirectly. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Sonicadvance1 · Sep 25, 2019 · 7634d53 · 7634d53
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commit 7634d53
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diff --git a/tools/perf/lib/include/internal/lib.h b/tools/perf/lib/include/internal/lib.h
@@ -2,7 +2,7 @@
 #ifndef __LIBPERF_INTERNAL_LIB_H
 #define __LIBPERF_INTERNAL_LIB_H
 
-#include <unistd.h>
+#include <sys/types.h>
 
 extern unsigned int page_size;
 

diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
@@ -12,6 +12,7 @@
 #include <linux/zalloc.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h> // sysconf()
 #ifdef HAVE_LIBNUMA_SUPPORT
 #include <numaif.h>
 #endif