Tom de Vries c0e9cee285 [libgomp, nvptx] Print error log for link error ... By running libgomp test-case libgomp.c/target-28.c with GOMP_NVPTX_PTXRW=w (using a maintenance patch that adds support for this env var), we dump the ptx in target-28.exe to file. By editing one ptx file to rename gomp_nvptx_main to gomp_nvptx_main2 in both declaration and call, and running with GOMP_NVPTX_PTXRW=r, we trigger a link error: ... $ GOMP_NVPTX_PTXRW=r ./target-28.exe libgomp: cuLinkComplete error: unknown error ... The error is somewhat uninformative. Fix this by dumping the error log returned by the failing cuda call, such that we have instead: ... $ GOMP_NVPTX_PTXRW=r ./target-28.exe libgomp: Link error log error : \ Undefined reference to 'gomp_nvptx_main2' in '' libgomp: cuLinkComplete error: unknown error ... Build on x86_64 with nvptx accelerator, tested libgomp. libgomp/ChangeLog: * plugin/plugin-nvptx.c (link_ptx): Print elog if cuLinkComplete call fails.		2020-09-22 13:38:00 +02:00
..
cuda
configfrag.ac
cuda-lib.def
Makefrag.am
plugin-gcn.c
plugin-nvptx.c	[libgomp, nvptx] Print error log for link error	2020-09-22 13:38:00 +02:00