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osdep: build with non-working system() function

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Build without error on hosts without a working system(). If system()
is called, return -1 with ENOSYS.

Signed-off-by: Joelle van Dyne <j@getutm.app>
Message-id: 20210126012457.39046-6-j@getutm.app
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Joelle van Dyne
2021-01-25 17:24:51 -08:00
committed by Peter Maydell
parent 3812c0c4cb
commit 1ad27f7d93
2 changed files with 13 additions and 0 deletions
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12
include/qemu/osdep.h
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@ -710,4 +710,16 @@ static inline void qemu_thread_jit_write(void) {}
static inline void qemu_thread_jit_execute(void) {}
#endif
/**
* Platforms which do not support system() return ENOSYS
*/
#ifndef HAVE_SYSTEM_FUNCTION
#define system platform_does_not_support_system
static inline int platform_does_not_support_system(const char *command)
{
errno = ENOSYS;
return -1;
}
#endif /* !HAVE_SYSTEM_FUNCTION */
#endif