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Merge pull request #914 from lioncash/codeset

kernel/process: Use accessors instead of class members for referencing segment array
This commit is contained in:
bunnei 2018-08-04 02:17:25 -04:00 committed by GitHub
commit 206f2e3436
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 42 additions and 21 deletions

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@ -142,9 +142,9 @@ void Process::LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr) {
}; };
// Map CodeSet segments // Map CodeSet segments
MapSegment(module_->code, VMAPermission::ReadExecute, MemoryState::CodeStatic); MapSegment(module_->CodeSegment(), VMAPermission::ReadExecute, MemoryState::CodeStatic);
MapSegment(module_->rodata, VMAPermission::Read, MemoryState::CodeMutable); MapSegment(module_->RODataSegment(), VMAPermission::Read, MemoryState::CodeMutable);
MapSegment(module_->data, VMAPermission::ReadWrite, MemoryState::CodeMutable); MapSegment(module_->DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeMutable);
} }
ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) { ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {

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@ -4,6 +4,7 @@
#pragma once #pragma once
#include <array>
#include <bitset> #include <bitset>
#include <cstddef> #include <cstddef>
#include <memory> #include <memory>
@ -55,6 +56,12 @@ enum class ProcessStatus { Created, Running, Exited };
class ResourceLimit; class ResourceLimit;
struct CodeSet final : public Object { struct CodeSet final : public Object {
struct Segment {
size_t offset = 0;
VAddr addr = 0;
u32 size = 0;
};
static SharedPtr<CodeSet> Create(std::string name); static SharedPtr<CodeSet> Create(std::string name);
std::string GetTypeName() const override { std::string GetTypeName() const override {
@ -69,24 +76,38 @@ struct CodeSet final : public Object {
return HANDLE_TYPE; return HANDLE_TYPE;
} }
/// Name of the process Segment& CodeSegment() {
std::string name; return segments[0];
}
const Segment& CodeSegment() const {
return segments[0];
}
Segment& RODataSegment() {
return segments[1];
}
const Segment& RODataSegment() const {
return segments[1];
}
Segment& DataSegment() {
return segments[2];
}
const Segment& DataSegment() const {
return segments[2];
}
std::shared_ptr<std::vector<u8>> memory; std::shared_ptr<std::vector<u8>> memory;
struct Segment { std::array<Segment, 3> segments;
size_t offset = 0;
VAddr addr = 0;
u32 size = 0;
};
Segment segments[3];
Segment& code = segments[0];
Segment& rodata = segments[1];
Segment& data = segments[2];
VAddr entrypoint; VAddr entrypoint;
/// Name of the process
std::string name;
private: private:
CodeSet(); CodeSet();
~CodeSet() override; ~CodeSet() override;

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@ -311,11 +311,11 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
CodeSet::Segment* codeset_segment; CodeSet::Segment* codeset_segment;
u32 permission_flags = p->p_flags & (PF_R | PF_W | PF_X); u32 permission_flags = p->p_flags & (PF_R | PF_W | PF_X);
if (permission_flags == (PF_R | PF_X)) { if (permission_flags == (PF_R | PF_X)) {
codeset_segment = &codeset->code; codeset_segment = &codeset->CodeSegment();
} else if (permission_flags == (PF_R)) { } else if (permission_flags == (PF_R)) {
codeset_segment = &codeset->rodata; codeset_segment = &codeset->RODataSegment();
} else if (permission_flags == (PF_R | PF_W)) { } else if (permission_flags == (PF_R | PF_W)) {
codeset_segment = &codeset->data; codeset_segment = &codeset->DataSegment();
} else { } else {
LOG_ERROR(Loader, "Unexpected ELF PT_LOAD segment id {} with flags {:X}", i, LOG_ERROR(Loader, "Unexpected ELF PT_LOAD segment id {} with flags {:X}", i,
p->p_flags); p->p_flags);

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@ -159,7 +159,7 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
// Resize program image to include .bss section and page align each section // Resize program image to include .bss section and page align each section
bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset); bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
} }
codeset->data.size += bss_size; codeset->DataSegment().size += bss_size;
program_image.resize(static_cast<u32>(program_image.size()) + bss_size); program_image.resize(static_cast<u32>(program_image.size()) + bss_size);
// Load codeset for current process // Load codeset for current process

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@ -127,7 +127,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base) {
// Resize program image to include .bss section and page align each section // Resize program image to include .bss section and page align each section
bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset); bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
} }
codeset->data.size += bss_size; codeset->DataSegment().size += bss_size;
const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)}; const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)};
program_image.resize(image_size); program_image.resize(image_size);