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So far the userland VMA tests have been established as a rough expression of what's been possible. Adapt it into a more usable form by separating out tests and shared helper functions. Since we test functions that are declared statically in mm/vma.c, we make use of the trick of #include'ing kernel C files directly. In order for the tests to continue to function, we must therefore also this way into the tests/ directory. We try to keep as much shared logic actually modularised into a separate compilation unit in shared.c, however the merge_existing() and attach_vma() helpers rely on statically declared mm/vma.c functions so these must be declared in main.c. Link: https://lkml.kernel.org/r/a0455ccfe4fdcd1c962c64f76304f612e5662a4e.1769097829.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: David Hildenbrand <david@kernel.org> Cc: Dev Jain <dev.jain@arm.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zi Yan <ziy@nvidia.com> Cc: Damien Le Moal <dlemoal@kernel.org> Cc: "Darrick J. Wong" <djwong@kernel.org> Cc: Jarkko Sakkinen <jarkko@kernel.org> Cc: Yury Norov <ynorov@nvidia.com> Cc: Chris Mason <clm@fb.com> Cc: Pedro Falcato <pfalcato@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include "shared.h"
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/*
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* Directly import the VMA implementation here. Our vma_internal.h wrapper
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* provides userland-equivalent functionality for everything vma.c uses.
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*/
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#include "../../../mm/vma_init.c"
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#include "../../../mm/vma_exec.c"
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#include "../../../mm/vma.c"
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/* Tests are included directly so they can test static functions in mm/vma.c. */
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#include "tests/merge.c"
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#include "tests/mmap.c"
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#include "tests/vma.c"
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/* Helper functions which utilise static kernel functions. */
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struct vm_area_struct *merge_existing(struct vma_merge_struct *vmg)
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{
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struct vm_area_struct *vma;
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vma = vma_merge_existing_range(vmg);
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if (vma)
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vma_assert_attached(vma);
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return vma;
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}
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int attach_vma(struct mm_struct *mm, struct vm_area_struct *vma)
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{
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int res;
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res = vma_link(mm, vma);
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if (!res)
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vma_assert_attached(vma);
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return res;
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}
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/* Main test running which invokes tests/ *.c runners. */
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int main(void)
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{
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int num_tests = 0, num_fail = 0;
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maple_tree_init();
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vma_state_init();
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run_merge_tests(&num_tests, &num_fail);
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run_mmap_tests(&num_tests, &num_fail);
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run_vma_tests(&num_tests, &num_fail);
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printf("%d tests run, %d passed, %d failed.\n",
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num_tests, num_tests - num_fail, num_fail);
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return num_fail == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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