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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).
92 lines
1.6 KiB
C
92 lines
1.6 KiB
C
/*
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#progos: linux
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*/
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#define _GNU_SOURCE
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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int main (int argc, char *argv[])
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{
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int fd = open (argv[0], O_RDONLY);
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struct stat sb;
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int size;
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void *a;
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void *b;
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const char *str = "a string you'll only find in the program";
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if (fd == -1)
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{
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perror ("open");
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abort ();
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}
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if (fstat (fd, &sb) < 0)
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{
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perror ("fstat");
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abort ();
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}
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size = 8192;
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#ifdef MMAP_SIZE1
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size = MMAP_SIZE1;
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#endif
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#ifndef MMAP_PROT1
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#define MMAP_PROT1 PROT_READ | PROT_WRITE | PROT_EXEC
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#endif
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#ifndef MMAP_FLAGS1
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#define MMAP_FLAGS1 MAP_PRIVATE | MAP_ANONYMOUS
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#endif
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/* Get a page, any page. */
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b = mmap (NULL, size, MMAP_PROT1, MMAP_FLAGS1, -1, 0);
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if (b == MAP_FAILED)
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abort ();
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/* Remember it, unmap it. */
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#ifndef NO_MUNMAP
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if (munmap (b, size) != 0)
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abort ();
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#endif
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#ifdef MMAP_ADDR2
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b = MMAP_ADDR2;
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#endif
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#ifndef MMAP_PROT2
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#define MMAP_PROT2 PROT_READ | PROT_EXEC
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#endif
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#ifndef MMAP_FLAGS2
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#define MMAP_FLAGS2 MAP_DENYWRITE | MAP_FIXED | MAP_PRIVATE
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#endif
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size = sb.st_size;
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#ifdef MMAP_SIZE2
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size = MMAP_SIZE2;
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#endif
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#define MMAP_TEST_BAD_ORIG \
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(a == MAP_FAILED || memmem (a, size, str, strlen (str) + 1) == NULL)
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#ifndef MMAP_TEST_BAD
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#define MMAP_TEST_BAD MMAP_TEST_BAD_ORIG
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#endif
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/* Try mapping the now non-mapped page fixed. */
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a = mmap (b, size, MMAP_PROT2, MMAP_FLAGS2, fd, 0);
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if (MMAP_TEST_BAD)
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abort ();
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printf ("pass\n");
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exit (0);
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}
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