linux-user: Unconditionally use pipe2() syscall

The pipe2() syscall is available on all Linux platforms since kernel
2.6.27, so use it unconditionally to emulate pipe() and pipe2().

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <YtbZ2ojisTnzxN9Y@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Helge Deller 2022-07-19 18:20:42 +02:00 committed by Laurent Vivier
parent bd4b7fd6ba
commit 499d805537
2 changed files with 1 additions and 19 deletions

View file

@ -2026,15 +2026,6 @@ config_host_data.set('CONFIG_OPEN_BY_HANDLE', cc.links(gnu_source_prefix + '''
#else
int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
#endif'''))
config_host_data.set('CONFIG_PIPE2', cc.links(gnu_source_prefix + '''
#include <unistd.h>
#include <fcntl.h>
int main(void)
{
int pipefd[2];
return pipe2(pipefd, O_CLOEXEC);
}'''))
config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
#include <sys/mman.h>
#include <stddef.h>