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Include sys/glibc-syscalls.h instead of inexistent sys/io.h on Android

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This won't make raw I/O work magically but at least it would provide iopl()
if some driver requires it and there is no better alternative currently.

Corresponding to flashrom svn r1932.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Stefan Tauner 2016-02-20 20:21:58 +00:00
parent 45207061d8
commit 2c57bbee3c
1 changed files with 8 additions and 2 deletions
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10
hwaccess.h
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@ -201,8 +201,14 @@ cpu_to_be(64)
/* sys/io.h provides iopl(2) and x86 I/O port access functions (inb, outb etc).
* It is included in glibc (thus available also on debian/kFreeBSD) but also in other libcs that mimic glibc,
* e.g. musl and uclibc. */
#if defined(__linux__) || defined(__GLIBC__)
* e.g. musl and uclibc. Because we cannot detect the libc or existence of the header or of the instructions
* themselves safely in here we use some heuristic below:
* On Android we don't have the header file and no way for I/O port access at all. However, sys/glibc-syscalls.h
* refers to an iopl implementation and we therefore include at least that one for now. On non-Android we assume
* that a Linux system's libc has a suitable sys/io.h or (on non-Linux) we depend on glibc to offer it. */
#if defined(__ANDROID__)
#include <sys/glibc-syscalls.h>
#elif defined(__linux__) || defined(__GLIBC__)
#include <sys/io.h>
#endif