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essence cross compile

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This commit is contained in:
Nakst
2017-11-26 11:03:11 +00:00
parent adb6c7637e
commit b0d3fbba47
6 changed files with 206 additions and 6 deletions
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52
src/main.cpp
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@@ -77,6 +77,7 @@ i32 system_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
va_end(va);
cmd = make_string(cast(u8 *)&cmd_line, cmd_len-1);
//printf("do: %s\n", cmd_line);
exit_code = system(&cmd_line[0]);
// pid_t pid = fork();
@@ -210,6 +211,8 @@ enum BuildFlagKind {
BuildFlag_Collection,
BuildFlag_BuildMode,
BuildFlag_Debug,
BuildFlag_CrossCompile,
BuildFlag_CrossLibDir,
BuildFlag_COUNT,
};
@@ -246,6 +249,8 @@ bool parse_build_flags(Array<String> args) {
add_flag(&build_flags, BuildFlag_Collection, str_lit("collection"), BuildFlagParam_String);
add_flag(&build_flags, BuildFlag_BuildMode, str_lit("build-mode"), BuildFlagParam_String);
add_flag(&build_flags, BuildFlag_Debug, str_lit("debug"), BuildFlagParam_None);
add_flag(&build_flags, BuildFlag_CrossCompile, str_lit("cross-compile"), BuildFlagParam_String);
add_flag(&build_flags, BuildFlag_CrossLibDir, str_lit("cross-lib-dir"), BuildFlagParam_String);
Array<String> flag_args = args;
@@ -399,6 +404,33 @@ bool parse_build_flags(Array<String> args) {
build_context.keep_temp_files = true;
break;
case BuildFlag_CrossCompile: {
GB_ASSERT(value.kind == ExactValue_String);
cross_compile_target = value.value_string;
#ifdef GB_SYSTEM_UNIX
#ifdef GB_ARCH_64_BIT
if (str_eq_ignore_case(cross_compile_target, str_lit("Essence"))) {
#endif
#endif
} else {
gb_printf_err("Unsupported cross compilation target '%.*s'\n", LIT(cross_compile_target));
gb_printf_err("Currently supported targets: Essence (from 64-bit Unixes only)\n");
bad_flags = true;
}
break;
}
case BuildFlag_CrossLibDir: {
GB_ASSERT(value.kind == ExactValue_String);
if (cross_compile_lib_dir.len) {
gb_printf_err("Multiple cross compilation library directories\n");
bad_flags = true;
} else {
cross_compile_lib_dir = concatenate_strings(heap_allocator(), str_lit("-L"), value.value_string);
}
break;
}
case BuildFlag_Collection: {
GB_ASSERT(value.kind == ExactValue_String);
String str = value.value_string;
@@ -831,10 +863,12 @@ int main(int arg_count, char **arg_ptr) {
"llc \"%.*s.bc\" -filetype=obj -relocation-model=pic -O%d "
"%.*s "
// "-debug-pass=Arguments "
"%s"
"",
LIT(output_base),
build_context.optimization_level,
LIT(build_context.llc_flags));
LIT(build_context.llc_flags),
str_eq_ignore_case(cross_compile_target, str_lit("Essence")) ? "-mtriple=x86_64-pc-none-elf" : "");
if (exit_code != 0) {
return exit_code;
}
@@ -916,14 +950,19 @@ int main(int arg_count, char **arg_ptr) {
// It probably has to do with including the entire CRT, but
// that's quite a complicated issue to solve while remaining distro-agnostic.
// Clang can figure out linker flags for us, and that's good enough _for now_.
linker = "clang -Wno-unused-command-line-argument";
if (str_eq_ignore_case(cross_compile_target, str_lit("Essence"))) {
linker = "x86_64-elf-gcc -T core/sys/essence_linker_userland64.ld -ffreestanding -nostdlib -lgcc -g -z max-page-size=0x1000 -Wno-unused-command-line-argument";
} else {
linker = "clang -Wno-unused-command-line-argument";
}
#endif
exit_code = system_exec_command_line_app("ld-link", true,
"%s \"%.*s.o\" -o \"%.*s%s\" %s "
"-lc -lm "
" %s "
" %.*s "
" %s "
" %.*s "
#if defined(GB_SYSTEM_OSX)
// This sets a requirement of Mountain Lion and up, but the compiler doesn't work without this limit.
// NOTE: If you change this (although this minimum is as low as you can go with Odin working)
@@ -933,8 +972,11 @@ int main(int arg_count, char **arg_ptr) {
" -e _main "
#endif
, linker, LIT(output_base), LIT(output_base), output_ext,
lib_str, LIT(build_context.link_flags),
link_settings
lib_str,
str_eq_ignore_case(cross_compile_target, str_lit("Essence")) ? "" : "-lc -lm",
LIT(build_context.link_flags),
link_settings,
LIT(cross_compile_lib_dir)
);
if (exit_code != 0) {
return exit_code;