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1214c97666
We usually test against the newlib/libgloss environment, but for a few ports that also support Linux apps, we want to test that logic too. A lot of the C code is written such that it works with either newlib/libgloss or glibc/linux toolchains, but we have some tests that end up being Linux-specific. Cris has been using the target tuple as a rough proxy for this (where cris*-*-elf is assumed to be newlib/libgloss, and everything else is glibc/linux), but that is a bit too rough, and it doesn't work in a multitarget build. So lets create a few stub files that we can do compile tests with to detect the different setups, and then let tests declare which one they require (if they require any at all).
67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
/* Check that TRT happens for pipe corner cases.
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#progos: linux
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*/
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#include <stddef.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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void err (const char *s)
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{
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perror (s);
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abort ();
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}
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int main (void)
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{
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int pip[2];
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char c;
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int pipemax;
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if (pipe (pip) != 0)
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err ("pipe");
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#ifdef PIPE_MAX
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pipemax = PIPE_MAX;
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#else
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pipemax = fpathconf (pip[1], _PC_PIPE_BUF);
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#endif
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if (pipemax <= 0)
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{
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fprintf (stderr, "Bad pipemax %d\n", pipemax);
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abort ();
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}
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/* Writing to wrong end of pipe. */
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if (write (pip[0], "argh", 1) != -1
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|| errno != EBADF)
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err ("write pipe");
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errno = 0;
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/* Reading from wrong end of pipe. */
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if (read (pip[1], &c, 1) != -1
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|| errno != EBADF)
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err ("write pipe");
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errno = 0;
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if (close (pip[0]) != 0)
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err ("close");
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if (signal (SIGPIPE, SIG_IGN) != SIG_DFL)
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err ("signal");
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/* Writing to pipe with closed read end. */
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if (write (pip[1], "argh", 1) != -1
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|| errno != EPIPE)
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err ("write closed");
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printf ("pass\n");
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exit (0);
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}
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