motiejus/zig
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ability to target any glibc version

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This commit is contained in:
Andrew Kelley
2019-07-07 17:06:09 -04:00
parent 3b97940fb3
commit 7ccf7807b3
14 changed files with 691 additions and 53 deletions
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36
src/target.cpp
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@@ -10,6 +10,8 @@
#include "target.hpp"
#include "util.hpp"
#include "os.hpp"
#include "compiler.hpp"
#include "glibc.hpp"
#include <stdio.h>
@@ -466,6 +468,29 @@ const char *target_abi_name(ZigLLVM_EnvironmentType abi) {
return ZigLLVMGetEnvironmentTypeName(abi);
}
Error target_parse_glibc_version(ZigGLibCVersion *glibc_ver, const char *text) {
glibc_ver->major = 2;
glibc_ver->minor = 0;
glibc_ver->patch = 0;
SplitIterator it = memSplit(str(text), str("GLIBC_."));
{
Optional<Slice<uint8_t>> opt_component = SplitIterator_next(&it);
if (!opt_component.is_some) return ErrorUnknownABI;
glibc_ver->major = strtoul(buf_ptr(buf_create_from_slice(opt_component.value)), nullptr, 10);
}
{
Optional<Slice<uint8_t>> opt_component = SplitIterator_next(&it);
if (!opt_component.is_some) return ErrorNone;
glibc_ver->minor = strtoul(buf_ptr(buf_create_from_slice(opt_component.value)), nullptr, 10);
}
{
Optional<Slice<uint8_t>> opt_component = SplitIterator_next(&it);
if (!opt_component.is_some) return ErrorNone;
glibc_ver->patch = strtoul(buf_ptr(buf_create_from_slice(opt_component.value)), nullptr, 10);
}
return ErrorNone;
}
void get_native_target(ZigTarget *target) {
ZigLLVM_OSType os_type;
ZigLLVM_ObjectFormatType oformat; // ignored; based on arch/os
@@ -481,6 +506,17 @@ void get_native_target(ZigTarget *target) {
if (target->abi == ZigLLVM_UnknownEnvironment) {
target->abi = target_default_abi(target->arch, target->os);
}
target->glibc_version = nullptr;
#ifdef ZIG_OS_LINUX
if (target_is_glibc(target)) {
target->glibc_version = allocate<ZigGLibCVersion>(1);
Error err;
if ((err = glibc_detect_native_version(target->glibc_version))) {
// Use a default version.
*target->glibc_version = {2, 17, 0};
}
}
#endif
}
Error target_parse_archsub(ZigLLVM_ArchType *out_arch, ZigLLVM_SubArchType *out_sub,