mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-06 07:40:26 +08:00
c0e9cee285
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.
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.