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Support integrate 3rd-party toolchains into wamrc (#1237)

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Support integrating 3rd-party toolchain llc compiler or asm compiler
into wamrc by setting environment variable WAMRC_LLC_COMPILER
or WAMRC_ASM_COMPILER, wamrc will use these tools to generate
object file from LLVM IR firstly, and then refactor the object file into
aot file.
This commit is contained in:
Xu Jun
2022-06-20 13:13:41 +08:00
committed by GitHub
parent bc6eda2803
commit 53b775aa4b
8 changed files with 241 additions and 1 deletions
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45
core/iwasm/compilation/aot_llvm.c
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@ -1660,6 +1660,51 @@ aot_create_comp_context(AOTCompData *comp_data, aot_comp_option_t option)
opt_level = option->opt_level;
size_level = option->size_level;
/* verify external llc compiler */
comp_ctx->external_llc_compiler = getenv("WAMRC_LLC_COMPILER");
if (comp_ctx->external_llc_compiler) {
#if defined(_WIN32) || defined(_WIN32_)
comp_ctx->external_llc_compiler = NULL;
LOG_WARNING("External LLC compiler not supported on Windows.");
#else
if (access(comp_ctx->external_llc_compiler, X_OK) != 0) {
LOG_WARNING("WAMRC_LLC_COMPILER [%s] not found, fallback to "
"default pipeline",
comp_ctx->external_llc_compiler);
comp_ctx->external_llc_compiler = NULL;
}
else {
comp_ctx->llc_compiler_flags = getenv("WAMRC_LLC_FLAGS");
LOG_VERBOSE("Using external LLC compiler [%s]",
comp_ctx->external_llc_compiler);
}
#endif
}
/* verify external asm compiler */
if (!comp_ctx->external_llc_compiler) {
comp_ctx->external_asm_compiler = getenv("WAMRC_ASM_COMPILER");
if (comp_ctx->external_asm_compiler) {
#if defined(_WIN32) || defined(_WIN32_)
comp_ctx->external_asm_compiler = NULL;
LOG_WARNING("External ASM compiler not supported on Windows.");
#else
if (access(comp_ctx->external_asm_compiler, X_OK) != 0) {
LOG_WARNING(
"WAMRC_ASM_COMPILER [%s] not found, fallback to "
"default pipeline",
comp_ctx->external_asm_compiler);
comp_ctx->external_asm_compiler = NULL;
}
else {
comp_ctx->asm_compiler_flags = getenv("WAMRC_ASM_FLAGS");
LOG_VERBOSE("Using external ASM compiler [%s]",
comp_ctx->external_asm_compiler);
}
#endif
}
}
if (arch) {
/* Add default sub-arch if not specified */
if (!strcmp(arch, "arm"))