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It's about time

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This commit is contained in:
David Gonzalez Martin 2024-09-29 08:57:26 -06:00 committed by David
parent 8249595e9c
commit d35d9ffc14
1 changed files with 75 additions and 115 deletions
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190
bootstrap/main.c
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@ -26,6 +26,8 @@ STRUCT(GetOrPut(T)) \
u8 existing;\
}
auto compiler_name = strlit("nest");
fn int dir_make(const char* path)
{
return syscall_mkdir(path, 0755);
@ -8481,9 +8483,6 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
auto name = elf_get_section_name(builder, strlit(".gnu.version_r"));
ELFVersionRequirementEntry entries[] = {
};
STRUCT(Requirement)
{
ELFVersionRequirement req;
@ -8491,6 +8490,23 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
u32 entry_count;
};
ELFVersionRequirementEntry entries[] = {
{
.hash = glibc_225.hash,
.flags = 0,
.index = 3,
.name_offset = glibc_225.offset,
.next = sizeof(ELFVersionRequirementEntry),
},
{
.hash = glibc_234.hash,
.flags = 0,
.index = 2,
.name_offset = glibc_234.offset,
.next = 0,
},
};
Requirement requirements[] = {
{
.req = {
@ -8499,23 +8515,8 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
.aux_offset = sizeof(ELFVersionRequirement),
.next = 0,
},
.entry_pointer = (ELFVersionRequirementEntry[]) {
{
.hash = glibc_225.hash,
.flags = 0,
.index = 3,
.name_offset = glibc_225.offset,
.next = sizeof(ELFVersionRequirementEntry),
},
{
.hash = glibc_234.hash,
.flags = 0,
.index = 2,
.name_offset = glibc_234.offset,
.next = 0,
},
},
.entry_count = 2,
.entry_pointer = entries,
.entry_count = array_length(entries),
}
};
@ -9168,6 +9169,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
u32 pointer;
};
auto fde0_offset = builder->file.length - offset;
// Start of FDE
{
*vb_add_struct(&builder->file, FrameDescriptorEntryHeader) = (FrameDescriptorEntryHeader) {
@ -9708,48 +9710,48 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
const u64 virtual_address = 0;
{
// .comment
auto* section_header = vb_add(&builder->section_headers, 1);
u64 alignment = 1;
vb_align(&builder->file, alignment);
auto offset = builder->file.length;
auto name = elf_get_section_name(builder, strlit(".comment"));
String strings[] = {
strlit("GCC: (GNU) 14.2.1 20240805"),
strlit("GCC: (GNU) 14.2.1 20240910"),
strlit("clang version 18.1.8"),
};
for (u32 i = 0; i < array_length(strings); i += 1)
{
String string = strings[i];
// Copy also null-terminated byte
auto string_size = string.length + 1;
memcpy(vb_add(&builder->file, string_size), string.pointer, string_size);
}
auto size = builder->file.length - offset;
*section_header = (ELFSectionHeader) {
.name_offset = name,
.type = ELF_SECTION_PROGRAM,
.flags = {
.merge = 1,
.strings = 1,
},
.address = virtual_address,
.offset = offset,
.size = size,
.link = 0,
.info = 0,
.alignment = alignment,
.entry_size = 1,
};
}
// {
// // .comment
// auto* section_header = vb_add(&builder->section_headers, 1);
// u64 alignment = 1;
//
// vb_align(&builder->file, alignment);
// auto offset = builder->file.length;
//
// auto name = elf_get_section_name(builder, strlit(".comment"));
//
// String strings[] = {
// strlit("GCC: (GNU) 14.2.1 20240805"),
// strlit("GCC: (GNU) 14.2.1 20240910"),
// strlit("clang version 18.1.8"),
// };
//
// for (u32 i = 0; i < array_length(strings); i += 1)
// {
// String string = strings[i];
// // Copy also null-terminated byte
// auto string_size = string.length + 1;
// memcpy(vb_add(&builder->file, string_size), string.pointer, string_size);
// }
//
// auto size = builder->file.length - offset;
//
// *section_header = (ELFSectionHeader) {
// .name_offset = name,
// .type = ELF_SECTION_PROGRAM,
// .flags = {
// .merge = 1,
// .strings = 1,
// },
// .address = virtual_address,
// .offset = offset,
// .size = size,
// .link = 0,
// .info = 0,
// .alignment = alignment,
// .entry_size = 1,
// };
// }
for (u32 i = 0, dynamic_relocation_i = dynamic_relocation_offset; dynamic_relocation_i < dynamic_relocation_count; dynamic_relocation_i += 1, i += 1)
{
@ -9794,7 +9796,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
{
// producer: strx1
auto string = strlit("clang version 18.1.8");
auto string = compiler_name;
auto string_size = string.length + 1;
auto string_offset = debug_str.length;
memcpy(vb_add(&debug_str, string_size), string.pointer, string_size);
@ -9808,7 +9810,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
{
// file: strx1
auto string = strlit("main.c");
auto string = strlit("first.nat");
auto string_size = string.length + 1;
auto string_offset = debug_str.length;
memcpy(vb_add(&debug_str, string_size), string.pointer, string_size);
@ -9825,7 +9827,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
// comp_dir: strx1
{
auto string = strlit("/home/david/minimal");
auto string = strlit("/home/david/dev/nest/tests");
auto string_size = string.length + 1;
auto string_offset = debug_str.length;
memcpy(vb_add(&debug_str, string_size), string.pointer, string_size);
@ -9893,7 +9895,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
{
// name: strx1
auto string = strlit("int");
auto string = strlit("s32");
auto string_size = string.length + 1;
auto string_offset = debug_str.length;
memcpy(vb_add(&debug_str, string_size), string.pointer, string_size);
@ -9906,7 +9908,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
*vb_add(&builder->file, 1) = DW_ATE_signed;
// byte_size: data1
*vb_add(&builder->file, 1) = 4;
*vb_add(&builder->file, 1) = sizeof(s32); // sizeof(int);
}
*vb_add(&builder->file, 1) = 0;
@ -10089,7 +10091,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
u8 directory_index = 0;
auto directory_string_offset = debug_line_str.length;
{
auto string = strlit("/home/david/minimal");
auto string = strlit("/home/david/dev/nest/tests");
auto string_size = string.length + 1;
memcpy(vb_add(&debug_line_str, string_size), string.pointer, string_size);
}
@ -10126,17 +10128,15 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
u8 directory_index;
MD5Result hash;
};
MD5Result md5_hash = { { 0x05, 0xAB, 0x89, 0xF5, 0x48, 0x1B, 0xC9, 0xF2, 0xD0, 0x37, 0xE7, 0x88, 0x66, 0x41, 0xE9, 0x19 } };
#if 0
String dummy_file = file_read(thread->arena, strlit("/home/david/minimal/main.c"));
// MD5Result md5_hash = { { 0x05, 0xAB, 0x89, 0xF5, 0x48, 0x1B, 0xC9, 0xF2, 0xD0, 0x37, 0xE7, 0x88, 0x66, 0x41, 0xE9, 0x19 } };
String dummy_file = file_read(thread->arena, strlit("/home/david/dev/nest/tests/first.nat"));
auto md5 = md5_init();
md5_update(&md5, dummy_file);
md5_hash = md5_end(&md5);
#endif
auto md5_hash = md5_end(&md5);
auto filename_string_offset = debug_line_str.length;
{
auto string = strlit("main.c");
auto string = strlit("first.nat");
auto string_size = string.length + 1;
memcpy(vb_add(&debug_line_str, string_size), string.pointer, string_size);
}
@ -10382,7 +10382,7 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
u16 section_index_undefined = 0;
u16 section_index_absolute = 0xfff1;
auto main_c_string = st_get_string(&builder->static_st, strlit("main.c"));
auto main_c_string = st_get_string(&builder->static_st, strlit("first.nat"));
auto _dynamic_string = st_get_string(&builder->static_st, strlit("_DYNAMIC"));
auto eh_frame_hdr_string = st_get_string(&builder->static_st, strlit("__GNU_EH_FRAME_HDR"));
auto got_string = st_get_string(&builder->static_st, strlit("_GLOBAL_OFFSET_TABLE_"));
@ -10728,46 +10728,6 @@ may_be_unused fn void write_elf(Thread* thread, const ObjectOptions* const restr
assert(dynamic_relocation_count == expected_dynamic_relocation_count);
// // .note.gnu.build-id
// {
// u8 blob[] = { 0xF0, 0xDE, 0x30, 0xDB, 0x5A, 0x9F, 0xE2, 0x4E, 0x0A, 0xCF, 0x93, 0xA4, 0x4C, 0x11, 0x60, 0xB5, 0x0C, 0xD9, 0xAF, 0x50, };
//
// // *gnu_build_id_header = (ELFNoteHeader)
// // {
// // .name_size = gnu_string_size,
// // .descriptor_size = sizeof(blob),
// // .type = NT_GNU_BUILD_ID,
// // };
// // memcpy(gnu_build_id_string, gnu_string.pointer, gnu_string_size);
//
// auto f = file_read(thread->arena, strlit("/home/david/minimal/main"));
// String exe = { builder->file.pointer, builder->file.length };
// auto sha1 = sha1_compute(exe);
// assert(sizeof(blob) == gnu_build_id_blob_size);
// // memcpy(gnu_build_id_blob, blob, sizeof(blob));
// }
// Check if the file matches
// {
// auto s = file_read(thread->arena, strlit("/home/david/minimal/main"));
//
// if (s.length != builder->file.length)
// {
// fail();
// }
//
// for (u32 i = 0; i < s.length; i += 1)
// {
// auto mine = builder->file.pointer[i];
// auto correct = s.pointer[i];
// if (mine != correct)
// {
// fail();
// }
// }
// }
auto exe_path_z = options->exe_path;
{
int fd = syscall_open(exe_path_z, O_WRONLY | O_CREAT | O_TRUNC, 0755);