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691bf90445
Full documentation for this is in the unit testing confluence page. JIRA NVGPU-525 Bug 2261555 Change-Id: I463e6267eb0eb12b7313f8b275266e8faabe5ccf Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1683915 GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <unit/io.h>
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#include <unit/core.h>
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/*
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* Load libnvgpu-drv.so. This is done with dlopen() since this will make
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* resolving addresses into symbols easier in the future.
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*
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* Also, this makes people think carefully about what functions to call in
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* nvgpu-drv from the unit test FW. The interaction should really be limited
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* and doing explicit name lookups is a good way to prevent too much coupling.
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*/
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int core_load_nvgpu(struct unit_fw *fw)
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{
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const char *msg;
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/*
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* Specify a GLOBAL binding so that subsequently loaded unit tests see
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* the nvgpu-drv library. They will of course need it (and will access
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* it directly). I.e they will link against nvgpu-drv and this should
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* satisfy that linkage.
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*/
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fw->nvgpu_so = dlopen("libnvgpu-drv.so", RTLD_NOW | RTLD_GLOBAL);
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if (fw->nvgpu_so == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to load nvgpu-drv: %s\n", msg);
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return -1;
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}
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/*
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* We directly check the value of the returned symbol for these
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* functions against NULL because if it is NULL then something is
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* terribly wrong.
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*/
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fw->nvgpu.nvgpu_posix_probe = dlsym(fw->nvgpu_so,
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"nvgpu_posix_probe");
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if (fw->nvgpu.nvgpu_posix_probe == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to resolve nvgpu_posix_probe: %s\n", msg);
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return -1;
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}
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fw->nvgpu.nvgpu_posix_cleanup = dlsym(fw->nvgpu_so,
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"nvgpu_posix_cleanup");
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if (fw->nvgpu.nvgpu_posix_cleanup == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to resolve nvgpu_posix_cleanup: %s\n", msg);
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return -1;
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}
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return 0;
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}
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