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test reloc for section symbol with merged section

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This commit is contained in:
Nikita Smith
2025-05-15 17:13:02 -07:00
committed by Ryan Fleury
parent f467ff8822
commit 89239fc744
1 changed files with 76 additions and 24 deletions
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src/torture/torture.c
+76 -24
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@@ -24,6 +24,7 @@
#include "coff/coff_obj_writer.h"
#include "coff/coff_lib_writer.h"
#include "pe/pe.h"
#include "pe/pe_section_flags.h"
#include "linker/hash_table.h"
#include "base/base_inc.c"
@@ -40,7 +41,6 @@
#include "linker/lnk_cmd_line.h"
#include "linker/lnk_cmd_line.c"
#include "linker/lnk_error.h"
#include "linker/lnk_image_section_flags.h"
////////////////////////////////
@@ -296,19 +296,19 @@ typedef enum
internal COFF_ObjSection *
t_push_text_section(COFF_ObjWriter *obj_writer, String8 data)
{
return coff_obj_writer_push_section(obj_writer, str8_lit(".text"), LNK_TEXT_SECTION_FLAGS, data);
return coff_obj_writer_push_section(obj_writer, str8_lit(".text"), PE_TEXT_SECTION_FLAGS, data);
}
internal COFF_ObjSection *
t_push_data_section(COFF_ObjWriter *obj_writer, String8 data)
{
return coff_obj_writer_push_section(obj_writer, str8_lit(".data"), LNK_DATA_SECTION_FLAGS, data);
return coff_obj_writer_push_section(obj_writer, str8_lit(".data"), PE_DATA_SECTION_FLAGS, data);
}
internal COFF_ObjSection *
t_push_rdata_section(COFF_ObjWriter *obj_writer, String8 data)
{
return coff_obj_writer_push_section(obj_writer, str8_lit(".rdata"), LNK_RDATA_SECTION_FLAGS, data);
return coff_obj_writer_push_section(obj_writer, str8_lit(".rdata"), PE_RDATA_SECTION_FLAGS, data);
}
internal T_Result
@@ -839,7 +839,7 @@ t_undef_section(void)
U8 data[] = { 0, 0, 0, 0 };
COFF_ObjSection *data_section = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSymbol *foo = coff_obj_writer_push_symbol_undef_section(obj_writer, str8_lit(".mysect"), COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead);
COFF_ObjSymbol *foo = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".mysect"), COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead);
coff_obj_writer_section_push_reloc(obj_writer, data_section, 0, foo, COFF_Reloc_X64_Addr32Nb);
U8 text[] = { 0xC3 };
@@ -881,6 +881,52 @@ t_undef_section(void)
return result;
}
internal T_Result
t_sect_symbol(void)
{
Temp scratch = scratch_begin(0,0);
T_Result result = T_Result_Fail;
String8 sect_obj_name = str8_lit("sect.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".mysect$1"), PE_RDATA_SECTION_FLAGS, str8_lit("hello, world"));
coff_obj_writer_push_directive(obj_writer, str8_lit("/merge:.mysect=.rdata"));
String8 sect_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(sect_obj_name, sect_obj)) {
goto exit;
}
}
String8 main_obj_name = str8_lit("main.obj");
{
U8 data[8] = {0};
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".mysect$2222"), PE_RDATA_SECTION_FLAGS);
coff_obj_writer_section_push_reloc_addr(obj_writer, sect, 0, symbol);
U8 text[] = { 0xC3 };
COFF_ObjSection *text_sect = t_push_text_section(obj_writer, str8_array_fixed(text));
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("my_entry"), 0, text_sect);
String8 main_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(main_obj_name, main_obj)) {
goto exit;
}
}
int linker_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe main.obj sect.obj");
exit:;
scratch_end(scratch);
return result;
}
internal T_Result
t_undef_reloc_section(void)
{
@@ -892,12 +938,12 @@ t_undef_reloc_section(void)
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
U8 text[] = { 0xC3 };
COFF_ObjSection *text_section = coff_obj_writer_push_section(obj_writer, str8_lit(".text"), LNK_TEXT_SECTION_FLAGS, str8_array_fixed(text));
COFF_ObjSection *text_section = coff_obj_writer_push_section(obj_writer, str8_lit(".text"), PE_TEXT_SECTION_FLAGS, str8_array_fixed(text));
COFF_ObjSymbol *my_entry_symbol = coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("my_entry"), 0, text_section);
U8 data[8] = { 0 };
COFF_ObjSection *data_section = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSymbol *foo = coff_obj_writer_push_symbol_undef_section(obj_writer, str8_lit(".reloc"), LNK_RELOC_SECTION_FLAGS);
COFF_ObjSymbol *foo = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".reloc"), PE_RELOC_SECTION_FLAGS);
coff_obj_writer_section_push_reloc(obj_writer, data_section, 0, foo, COFF_Reloc_X64_Addr64);
main_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
@@ -1494,22 +1540,27 @@ t_import_export(void)
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *data_sect = t_push_data_section(obj_writer, str8_array_fixed(import_payload));
COFF_ObjSymbol *foo_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_foo"));
COFF_ObjSymbol *bar_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_bar"));
COFF_ObjSymbol *baz_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_baz"));
COFF_ObjSymbol *baf_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_baf"));
COFF_ObjSymbol *ord_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_ord"));
COFF_ObjSymbol *ord2_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_ord2"));
COFF_ObjSymbol *ord3_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_ord3"));
COFF_ObjSymbol *ord4_symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__imp_ord4"));
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 0*4, foo_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 1*4, bar_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 2*4, baz_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 3*4, baf_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 4*4, ord_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 5*4, ord2_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 6*4, ord3_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 7*4, ord4_symbol, COFF_Reloc_X64_Addr32Nb);
char *import_symbols[] = {
"__imp_foo",
"__imp_bar",
"__imp_baz",
"__imp_baf",
"__imp_ord",
//"__imp_ord2",
//"__imp_ord4",
"baf",
"bar",
"baz",
"foo",
"ord",
};
for (U64 i = 0; i < ArrayCount(import_symbols); ++i) {
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_cstring(import_symbols[i]));
coff_obj_writer_section_push_reloc_voff(obj_writer, data_sect, i * 4, symbol);
}
String8 import_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(import_obj_name, import_obj)) {
@@ -1588,7 +1639,7 @@ t_import_export(void)
}
}
int import_link_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe export.lib import.obj entry.obj");
int import_link_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe /delayload:export.dll /export:my_entry kernel32.Lib delayimp.lib libcmt.lib export.lib import.obj entry.obj");
if (import_link_exit_code != 0) {
goto exit;
@@ -1624,6 +1675,7 @@ entry_point(CmdLine *cmdline)
{ "abs_vs_regular", t_abs_vs_regular },
{ "abs_vs_common", t_abs_vs_common },
{ "undef_weak", t_undef_weak },
{ "sect_symbol", t_sect_symbol },
{ "weak_cycle", t_weak_cycle },
{ "weak_tag", t_weak_tag },
{ "find_merged_pdata", t_find_merged_pdata },