christoph/wamr
1
Fork 0
Code Releases Activity

Fix aot large model (--size-level=0) with LLVM 18 (#3057)

Browse Source 
The recent versions LLVM uses ".ltext" section for X86 large model.

cf. d8a04398f9

This fixes https://github.com/bytecodealliance/wasm-micro-runtime/issues/3034
This commit is contained in:
YAMAMOTO Takashi
2024-01-19 20:43:41 +09:00
committed by GitHub
parent ec6d9cb6be
commit bc35602004
3 changed files with 63 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
core/iwasm/compilation/aot_emit_aot_file.c
View File

@ -654,7 +654,8 @@ get_relocations_size(AOTObjectData *obj_data,
/* ignore the relocations to aot_func_internal#n in text section
for windows platform since they will be applied in
aot_emit_text_section */
if (!strcmp(relocation_group->section_name, ".text")
if ((!strcmp(relocation_group->section_name, ".text")
|| !strcmp(relocation_group->section_name, ".ltext"))
&& !strncmp(relocation->symbol_name, AOT_FUNC_INTERNAL_PREFIX,
strlen(AOT_FUNC_INTERNAL_PREFIX))
&& ((!strncmp(obj_data->comp_ctx->target_arch, "x86_64", 6)
@ -1819,7 +1820,8 @@ aot_emit_text_section(uint8 *buf, uint8 *buf_end, uint32 *p_offset,
for (i = 0; i < obj_data->relocation_group_count;
i++, relocation_group++) {
/* relocation in text section */
if (!strcmp(relocation_group->section_name, ".text")) {
if ((!strcmp(relocation_group->section_name, ".text")
|| !strcmp(relocation_group->section_name, ".ltext"))) {
relocation = relocation_group->relocations;
relocation_count = relocation_group->relocation_count;
for (j = 0; j < relocation_count; j++) {
@ -2380,17 +2382,19 @@ aot_resolve_text(AOTObjectData *obj_data)
while (
!LLVMObjectFileIsSectionIteratorAtEnd(obj_data->binary, sec_itr)) {
if ((name = (char *)LLVMGetSectionName(sec_itr))) {
if (!strcmp(name, ".text")) {
if (!strcmp(name, ".text") || !strcmp(name, ".ltext")) {
obj_data->text = (char *)LLVMGetSectionContents(sec_itr);
obj_data->text_size = (uint32)LLVMGetSectionSize(sec_itr);
}
else if (!strcmp(name, ".text.unlikely.")) {
else if (!strcmp(name, ".text.unlikely.")
|| !strcmp(name, ".ltext.unlikely.")) {
obj_data->text_unlikely =
(char *)LLVMGetSectionContents(sec_itr);
obj_data->text_unlikely_size =
(uint32)LLVMGetSectionSize(sec_itr);
}
else if (!strcmp(name, ".text.hot.")) {
else if (!strcmp(name, ".text.hot.")
|| !strcmp(name, ".ltext.hot.")) {
obj_data->text_hot =
(char *)LLVMGetSectionContents(sec_itr);
obj_data->text_hot_size =
@ -2909,11 +2913,13 @@ aot_resolve_functions(AOTCompContext *comp_ctx, AOTObjectData *obj_data)
(char *)LLVMGetSectionName(contain_section);
LLVMDisposeSectionIterator(contain_section);
if (!strcmp(contain_section_name, ".text.unlikely.")) {
if (!strcmp(contain_section_name, ".text.unlikely.")
|| !strcmp(contain_section_name, ".ltext.unlikely.")) {
func->text_offset = align_uint(obj_data->text_size, 4)
+ LLVMGetSymbolAddress(sym_itr);
}
else if (!strcmp(contain_section_name, ".text.hot.")) {
else if (!strcmp(contain_section_name, ".text.hot.")
|| !strcmp(contain_section_name, ".ltext.hot.")) {
func->text_offset =
align_uint(obj_data->text_size, 4)
+ align_uint(obj_data->text_unlikely_size, 4)
@ -2945,12 +2951,14 @@ aot_resolve_functions(AOTCompContext *comp_ctx, AOTObjectData *obj_data)
(char *)LLVMGetSectionName(contain_section);
LLVMDisposeSectionIterator(contain_section);
if (!strcmp(contain_section_name, ".text.unlikely.")) {
if (!strcmp(contain_section_name, ".text.unlikely.")
|| !strcmp(contain_section_name, ".ltext.unlikely.")) {
func->text_offset_of_aot_func_internal =
align_uint(obj_data->text_size, 4)
+ LLVMGetSymbolAddress(sym_itr);
}
else if (!strcmp(contain_section_name, ".text.hot.")) {
else if (!strcmp(contain_section_name, ".text.hot.")
|| !strcmp(contain_section_name, ".ltext.hot.")) {
func->text_offset_of_aot_func_internal =
align_uint(obj_data->text_size, 4)
+ align_uint(obj_data->text_unlikely_size, 4)
@ -3211,6 +3219,12 @@ is_relocation_section_name(AOTObjectData *obj_data, char *section_name)
|| !strcmp(section_name, ".rel.text.unlikely.")
|| !strcmp(section_name, ".rela.text.hot.")
|| !strcmp(section_name, ".rel.text.hot.")
|| !strcmp(section_name, ".rela.ltext")
|| !strcmp(section_name, ".rel.ltext")
|| !strcmp(section_name, ".rela.ltext.unlikely.")
|| !strcmp(section_name, ".rel.ltext.unlikely.")
|| !strcmp(section_name, ".rela.ltext.hot.")
|| !strcmp(section_name, ".rel.ltext.hot.")
|| !strcmp(section_name, ".rela.literal")
|| !strcmp(section_name, ".rela.data")
|| !strcmp(section_name, ".rel.data")
@ -3249,7 +3263,9 @@ static bool
is_readonly_section(const char *name)
{
return !strcmp(name, ".rel.text") || !strcmp(name, ".rela.text")
|| !strcmp(name, ".rela.literal") || !strcmp(name, ".text");
|| !strcmp(name, ".rel.ltext") || !strcmp(name, ".rela.ltext")
|| !strcmp(name, ".rela.literal") || !strcmp(name, ".text")
|| !strcmp(name, ".ltext");
}
static bool
@ -3342,12 +3358,24 @@ aot_resolve_object_relocation_groups(AOTObjectData *obj_data)
|| !strcmp(relocation_group->section_name, ".rela.text.hot.")) {
relocation_group->section_name = ".rela.text";
}
else if (!strcmp(relocation_group->section_name,
".rela.ltext.unlikely.")
|| !strcmp(relocation_group->section_name,
".rela.ltext.hot.")) {
relocation_group->section_name = ".rela.ltext";
}
else if (!strcmp(relocation_group->section_name,
".rel.text.unlikely.")
|| !strcmp(relocation_group->section_name,
".rel.text.hot.")) {
relocation_group->section_name = ".rel.text";
}
else if (!strcmp(relocation_group->section_name,
".rel.ltext.unlikely.")
|| !strcmp(relocation_group->section_name,
".rel.ltext.hot.")) {
relocation_group->section_name = ".rel.ltext";
}
/*
* Relocations in read-only sections are problematic,