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git://nv-tegra.nvidia.com/linux-nvgpu.git
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95c3e56961
Change approach to how the fault injection state is stored to facilitate propagating fault injection state to child-threads. Rather than each unit maintaining a thread-local object, there is a thread-local container stored in the posix-fault-injection itself. This container is initialized for each test module so that is independent of other other test modules (for parallel test module execution). When child threads are created with nvgpu_create_thread(), the fault injection container is configured for the child. JIRA NVGPU-3981 Change-Id: I9b580dc7f1621a7770eef8eba796f3918f2738bf Signed-off-by: Philip Elcan <pelcan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2238474 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/*
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* Copyright (c) 2018-2019, 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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int flag = RTLD_NOW;
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if (fw->args->is_qnx == 0) {
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/*
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* Specify a GLOBAL binding so that subsequently loaded
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* unit tests see the nvgpu-drv library. They will of course
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* need it (and will access it directly). I.e they will link
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* against nvgpu-drv and this should satisfy that linkage.
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*/
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flag |= RTLD_GLOBAL;
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}
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/* TODO: WAR: remove this dependency of libnvgpu-drv.so for qnx unit
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* test, refer NVGPU-1935 for more detail */
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fw->nvgpu_so = dlopen("libnvgpu-drv.so", flag);
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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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fw->nvgpu.nvgpu_posix_init_fault_injection = dlsym(fw->nvgpu_so,
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"nvgpu_posix_init_fault_injection");
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if (fw->nvgpu.nvgpu_posix_init_fault_injection == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to resolve nvgpu_posix_init_fault_injection: %s\n",
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msg);
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return -1;
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}
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if (fw->args->is_qnx != 0) {
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fw->nvgpu_qnx_ut = dlopen("libnvgpu_ut.so", flag);
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if (fw->nvgpu_qnx_ut == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to load nvgpu_ut: %s\n", msg);
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return -1;
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}
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fw->nvgpu.nvgpu_posix_init_fault_injection_qnx =
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dlsym(fw->nvgpu_qnx_ut,
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"nvgpu_posix_init_fault_injection");
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if (fw->nvgpu.nvgpu_posix_init_fault_injection_qnx == NULL) {
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msg = dlerror();
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core_err(fw, "Failed to resolve nvgpu_posix_init_fault_injection: %s\n",
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msg);
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return -1;
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}
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} else {
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fw->nvgpu.nvgpu_posix_init_fault_injection_qnx = NULL;
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}
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return 0;
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}
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