ZhaoXin is a company selling x86 SoCs in the Chinese market. Let’s see for a bit what their GPU drivers look like.<\/p>\n\n\n\n
The GPU IP comes from S3 Graphics.<\/p>\n\n\n\n
They’re available on the Windows Update catalog<\/a>, you can use the ZhaoXin<\/em> keyword to search for them.<\/p>\n\n\n\n D3D9(Ex), D3D11 and OpenCL are the supported APIs.<\/p>\n\n\n\n The OpenGL implementation shipped is really<\/em> odd, but despite that still installed as an OpenGL ICD for Windows (!):<\/p>\n\n\n\n This is where things get really fun. Upstream GCC doesn’t support GLSL or OpenCL C as input languages… but this does use just that!<\/p>\n\n\n\n The target triplet used is This might be based on a GCC 3.4.5 code base, but there’s no way to be certain on that one.<\/p>\n\n\n\n No configuration information was kept for this one…<\/em><\/p>\n\n\n\n This would place it as at least GCC 4.5, which does seem to be a quite different GCC codebase from the one used beforehand.<\/p>\n\n\n\n It doesn’t seem to match a glslang version that I know about.<\/p>\n\n\n\n The OpenCL C compiler is spawned as a subprocess, instead of the compilation being done within the same address space. This is relatively unexpected.<\/p>\n\n\n\n The help information for the assembler:<\/p>\n\n\n\n It doesn’t seem to be present anywhere.<\/p>\n","protected":false},"excerpt":{"rendered":" ZhaoXin is a company selling x86 SoCs in the Chinese market. Let’s see for a bit what their GPU drivers look like. Where does the GPU IP come from? The GPU IP comes from S3 Graphics. Where to get the drivers? They’re available on the Windows Update catalog, you can use the ZhaoXin keyword to… Read More »ZhaoXin’s GPU drivers for Windows<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-398","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/posts\/398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/comments?post=398"}],"version-history":[{"count":3,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/posts\/398\/revisions"}],"predecessor-version":[{"id":492,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/posts\/398\/revisions\/492"}],"wp:attachment":[{"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/media?parent=398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/categories?post=398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/threedots.ovh\/blog\/wp-json\/wp\/v2\/tags?post=398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What APIs do they implement?<\/h2>\n\n\n\n
$ strings ZXELDMICD_64.dll | grep OpenGL\nOpenGL ES-CM 1.1\nOpenGL ES 2.0 37.00.29\n[...]<\/code><\/pre>\n\n\n\nWhat external codebases do they use?<\/h2>\n\n\n\n
OpenCL<\/h3>\n\n\n\n
Configuration settings<\/h4>\n\n\n\n
..\/..\/OpenCLCC\/configure --prefix=\/home\/JenniferWu\/gcc_debug --enable-universal --without-stdlib --exec-prefix=\/home\/JenniferWu\/gcc_debug --disable-bootstrap --target=s3exc-pc-mingw32 --program-prefix= --enable-languages=c,opencl --disable-nls --disable-werror --enable-sjlj-exceptions --disable-symvers --disable-libstdcxx-pch --enable-version-specific-runtime-libs --enable-cxx-flags='-fno-function-sections -fno-data-sections' --enable-fully-dynamic-string --disable-libssp<\/code><\/p>\n\n\n\ns3exc-pc-mingw32<\/code>. Pretty intriguing choice.<\/p>\n\n\n\nHaving a guess at which GCC version it is…<\/h4>\n\n\n\n
$ strings zxexgcc.exe | grep gcc-\n--print-libgcc-file-name\n-print-libgcc-file-name\n-gcc-\n -print-libgcc-file-name Display the name of the compiler's companion library\n-frecord-gcc-switches\n..\/..\/gcc-3.4.5\/gcc\/config\/i386\/w32-shared-ptr.c<\/code><\/pre>\n\n\n\nOpenGL<\/h2>\n\n\n\n
Trying to guess which GCC version it is…<\/h4>\n\n\n\n
$ strings ZXGLSL_64.dll | grep GCC\n.GCC.command.line\nGCC supports only %u nested scopes\ntype of bit-field %qs is a GCC extension\n%<long long long%> is too long for GCC\n#pragma GCC optimize is not allowed inside functions\n%<#pragma GCC optimize%> is not a string or number\n%<#pragma GCC optimize (string [,string]...)%> does not have a final %<)%>.\n#pragma GCC optimize string... is badly formed\nOffset of packed bit-field %qD has changed in GCC 4.4\n#pragma GCC target is not supported for this machine\n#%s is a GCC extension\n#%s is a deprecated GCC extension\nstyle of line directive is a GCC extension\nfixed-point constants are a GCC extension\ndecimal float constants are a GCC extension\nimaginary constants are a GCC extension\nbinary constants are a GCC extension\nassertions are a GCC extension<\/code><\/pre>\n\n\n\nBut which GLSL parser does it use?<\/h4>\n\n\n\n
List of filenames<\/h5>\n\n\n\n
fe\\config\\crx\\crx.c\nfe\\sl_Alias.c\nfe\\sl_Builtin.c\nfe\\sl_Calls.c\nfe\\sl_Dojump.c\nfe\\sl_Dump_rtl.c\nfe\\sl_Emit_rtl.c\nfe\\sl_Expand.c\nfe\\sl_Explow.c\nfe\\sl_Expmed.c\nfe\\sl_Expr.c\nfe\\sl_Fe_common.c\nfe\\sl_Fold_const.c\nfe\\sl_Function.c\nfe\\sl_Ggc_common.c\nfe\\sl_Ggc_page.c\nfe\\sl_Gimple.c\nfe\\sl_Gimple_low.c\nfe\\sl_Glsl_common.c\nfe\\sl_Glsl_decl.c\nfe\\sl_Glsl_function_name.c\nfe\\sl_Glsl_gimplify.c\nfe\\sl_Glsl_lex.c\nfe\\sl_Glsl_pragma.c\nfe\\sl_Glsl_pretty_print.c\nfe\\sl_Glsl_sematics.c\nfe\\sl_Glsl_Typeck.c\nfe\\sl_Graph.c\nfe\\sl_Graphunit.c\nfe\\sl_Insn_emit.c\nfe\\sl_Jump.c\nfe\\sl_Langhooks.c\nfe\\sl_Lists.c\nfe\\sl_Optabs.c\nfe\\sl_Options.c\nfe\\sl_Parser.c\nfe\\sl_Pretty_print.c\nfe\\sl_Print_rtl.c\nfe\\sl_Print_tree.c\nfe\\sl_Real.c\nfe\\sl_Reload.c\nfe\\sl_Rtl.c\nfe\\sl_Rtlanal.c\nfe\\sl_Rtlhooks.c\nfe\\sl_Simplify_rtx.c\nfe\\sl_Stmt.c\nfe\\sl_Stor_layout.c\nfe\\sl_Targhooks.c\nfe\\sl_Tree.c\nfe\\sl_Tree_expand.c\nfe\\sl_Tree_iterator.c\nfe\\sl_Varasm.c\nfe\\sl_Varpool.c\nfe\\sl_Vec.c\ninterface\\GLSLInterfaceImpl.c\ninterface\\MS_Encode.c\ninterface\\OGL_Interface.c\nd:\\p4_code\\sw2666\\sw\\s3gdrv\\source_x86\\glslcompiler\\glslang\\fe\\sl_Tree.h<\/code><\/pre>\n\n\n\nWhat could it be?<\/h5>\n\n\n\n
Any other particularities to note?<\/h2>\n\n\n\n
S3 Graphics Assembler Tool v0.0\n (note: It distinguishes between uppercase and lowercase)\n S3ASM Command Format: S3ASM.exe -A target [-FP] -o out_name in_name\n -A translate txt file into bin file \n -CL OpenCL S3ASM \n target target machine: -E2UMA\n -FP FPmode in Elite series\n -o\/-O out_name in_name output file name and input file name\n S3ASM Command Example: S3ASM.exe -A -E2UMA -o target.bin targetsource.s\n Disambler Command Format: S3ASM.exe -D target -I in_name -O out_name [-SPC startAddress] [-CTX dumpINSContext] [-APD]\n -D translate bin file into txt file \n -I in_name input file name\n -o\/-O out_name output file name\n -SPC startAddress start pc value\n -CTX dumpINSContext context value\n -APD file open mode: append\n Disambler Command Example:S3ASM.exe -D -E2UMA -I target.bin -O targetsource.txt<\/code><\/pre>\n\n\n\nWhere is the source code?<\/h2>\n\n\n\n