/** * Compile an LLVM module to machine code. * * @returns 0 for success, 1 for failure */ unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_shader_binary *binary, const char *gpu_family, unsigned dump, LLVMTargetMachineRef tm) { char cpu[CPU_STRING_LEN]; char fs[FS_STRING_LEN]; char *err; bool dispose_tm = false; LLVMContextRef llvm_ctx; unsigned rval = 0; LLVMMemoryBufferRef out_buffer; unsigned buffer_size; const char *buffer_data; char triple[TRIPLE_STRING_LEN]; LLVMBool mem_err; if (!tm) { strncpy(triple, "r600--", TRIPLE_STRING_LEN); LLVMTargetRef target = radeon_llvm_get_r600_target(triple); if (!target) { return 1; } strncpy(cpu, gpu_family, CPU_STRING_LEN); memset(fs, 0, sizeof(fs)); if (dump) { LLVMDumpModule(M); strncpy(fs, "+DumpCode", FS_STRING_LEN); } tm = LLVMCreateTargetMachine(target, triple, cpu, fs, LLVMCodeGenLevelDefault, LLVMRelocDefault, LLVMCodeModelDefault); dispose_tm = true; } /* Setup Diagnostic Handler*/ llvm_ctx = LLVMGetModuleContext(M); #if HAVE_LLVM >= 0x0305 LLVMContextSetDiagnosticHandler(llvm_ctx, radeonDiagnosticHandler, &rval); #endif rval = 0; /* Compile IR*/ mem_err = LLVMTargetMachineEmitToMemoryBuffer(tm, M, LLVMObjectFile, &err, &out_buffer); /* Process Errors/Warnings */ if (mem_err) { fprintf(stderr, "%s: %s", __FUNCTION__, err); FREE(err); LLVMDisposeTargetMachine(tm); return 1; } if (0 != rval) { fprintf(stderr, "%s: Processing Diag Flag\n", __FUNCTION__); } /* Extract Shader Code*/ buffer_size = LLVMGetBufferSize(out_buffer); buffer_data = LLVMGetBufferStart(out_buffer); radeon_elf_read(buffer_data, buffer_size, binary, dump); /* Clean up */ LLVMDisposeMemoryBuffer(out_buffer); if (dispose_tm) { LLVMDisposeTargetMachine(tm); } return rval; }
/** * Compile an LLVM module to machine code. * * @returns 0 for success, 1 for failure */ unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_llvm_binary *binary, const char * gpu_family, unsigned dump) { LLVMTargetRef target; LLVMTargetMachineRef tm; char cpu[CPU_STRING_LEN]; char fs[FS_STRING_LEN]; char *err; LLVMMemoryBufferRef out_buffer; unsigned buffer_size; const char *buffer_data; char triple[TRIPLE_STRING_LEN]; char *elf_buffer; Elf *elf; Elf_Scn *section = NULL; size_t section_str_index; LLVMBool r; init_r600_target(); target = get_r600_target(); if (!target) { return 1; } strncpy(cpu, gpu_family, CPU_STRING_LEN); memset(fs, 0, sizeof(fs)); if (dump) { LLVMDumpModule(M); strncpy(fs, "+DumpCode", FS_STRING_LEN); } strncpy(triple, "r600--", TRIPLE_STRING_LEN); tm = LLVMCreateTargetMachine(target, triple, cpu, fs, LLVMCodeGenLevelDefault, LLVMRelocDefault, LLVMCodeModelDefault); r = LLVMTargetMachineEmitToMemoryBuffer(tm, M, LLVMObjectFile, &err, &out_buffer); if (r) { fprintf(stderr, "%s", err); FREE(err); return 1; } buffer_size = LLVMGetBufferSize(out_buffer); buffer_data = LLVMGetBufferStart(out_buffer); /* One of the libelf implementations * (http://www.mr511.de/software/english.htm) requires calling * elf_version() before elf_memory(). */ elf_version(EV_CURRENT); elf_buffer = MALLOC(buffer_size); memcpy(elf_buffer, buffer_data, buffer_size); elf = elf_memory(elf_buffer, buffer_size); elf_getshdrstrndx(elf, §ion_str_index); binary->disassembled = 0; while ((section = elf_nextscn(elf, section))) { const char *name; Elf_Data *section_data = NULL; GElf_Shdr section_header; if (gelf_getshdr(section, §ion_header) != §ion_header) { fprintf(stderr, "Failed to read ELF section header\n"); return 1; } name = elf_strptr(elf, section_str_index, section_header.sh_name); if (!strcmp(name, ".text")) { section_data = elf_getdata(section, section_data); binary->code_size = section_data->d_size; binary->code = MALLOC(binary->code_size * sizeof(unsigned char)); memcpy(binary->code, section_data->d_buf, binary->code_size); } else if (!strcmp(name, ".AMDGPU.config")) { section_data = elf_getdata(section, section_data); binary->config_size = section_data->d_size; binary->config = MALLOC(binary->config_size * sizeof(unsigned char)); memcpy(binary->config, section_data->d_buf, binary->config_size); } else if (dump && !strcmp(name, ".AMDGPU.disasm")) { binary->disassembled = 1; section_data = elf_getdata(section, section_data); fprintf(stderr, "\nShader Disassembly:\n\n"); fprintf(stderr, "%.*s\n", (int)section_data->d_size, (char *)section_data->d_buf); } } LLVMDisposeMemoryBuffer(out_buffer); LLVMDisposeTargetMachine(tm); return 0; }
/** * Compile an LLVM module to machine code. * * @returns 0 for success, 1 for failure */ unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_shader_binary *binary, const char *gpu_family, LLVMTargetMachineRef tm, struct pipe_debug_callback *debug) { struct radeon_llvm_diagnostics diag; char cpu[CPU_STRING_LEN]; char fs[FS_STRING_LEN]; char *err; bool dispose_tm = false; LLVMContextRef llvm_ctx; LLVMMemoryBufferRef out_buffer; unsigned buffer_size; const char *buffer_data; char triple[TRIPLE_STRING_LEN]; LLVMBool mem_err; diag.debug = debug; diag.retval = 0; if (!tm) { strncpy(triple, "r600--", TRIPLE_STRING_LEN); LLVMTargetRef target = radeon_llvm_get_r600_target(triple); if (!target) { return 1; } strncpy(cpu, gpu_family, CPU_STRING_LEN); memset(fs, 0, sizeof(fs)); strncpy(fs, "+DumpCode", FS_STRING_LEN); tm = LLVMCreateTargetMachine(target, triple, cpu, fs, LLVMCodeGenLevelDefault, LLVMRelocDefault, LLVMCodeModelDefault); dispose_tm = true; } /* Setup Diagnostic Handler*/ llvm_ctx = LLVMGetModuleContext(M); LLVMContextSetDiagnosticHandler(llvm_ctx, radeonDiagnosticHandler, &diag); /* Compile IR*/ mem_err = LLVMTargetMachineEmitToMemoryBuffer(tm, M, LLVMObjectFile, &err, &out_buffer); /* Process Errors/Warnings */ if (mem_err) { fprintf(stderr, "%s: %s", __FUNCTION__, err); pipe_debug_message(debug, SHADER_INFO, "LLVM emit error: %s", err); FREE(err); diag.retval = 1; goto out; } /* Extract Shader Code*/ buffer_size = LLVMGetBufferSize(out_buffer); buffer_data = LLVMGetBufferStart(out_buffer); radeon_elf_read(buffer_data, buffer_size, binary); /* Clean up */ LLVMDisposeMemoryBuffer(out_buffer); out: if (dispose_tm) { LLVMDisposeTargetMachine(tm); } if (diag.retval != 0) pipe_debug_message(debug, SHADER_INFO, "LLVM compile failed"); return diag.retval; }