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-rw-r--r--lldb/include/lldb/Core/Section.h14
-rw-r--r--lldb/lib/Makefile4
-rw-r--r--lldb/source/Core/Section.cpp6
-rw-r--r--lldb/source/Expression/IRExecutionUnit.cpp1
-rw-r--r--lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp84
-rw-r--r--lldb/source/Plugins/Makefile2
-rw-r--r--lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp1
-rw-r--r--lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp5
-rw-r--r--lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp1
9 files changed, 107 insertions, 11 deletions
diff --git a/lldb/include/lldb/Core/Section.h b/lldb/include/lldb/Core/Section.h
index 437eaf59b9c..32dac5f35b8 100644
--- a/lldb/include/lldb/Core/Section.h
+++ b/lldb/include/lldb/Core/Section.h
@@ -119,6 +119,7 @@ public:
lldb::addr_t vm_size,
lldb::offset_t file_offset,
lldb::offset_t file_size,
+ uint32_t log2align,
uint32_t flags);
// Create a section that is a child of parent_section_sp
@@ -132,6 +133,7 @@ public:
lldb::addr_t vm_size,
lldb::offset_t file_offset,
lldb::offset_t file_size,
+ uint32_t log2align,
uint32_t flags);
~Section ();
@@ -284,6 +286,17 @@ public:
return m_obj_file;
}
+ uint32_t GetLog2Align()
+ {
+ return m_log2align;
+ }
+
+ void
+ SetLog2Align(uint32_t align)
+ {
+ m_log2align = align;
+ }
+
protected:
@@ -296,6 +309,7 @@ protected:
lldb::addr_t m_byte_size; // Size in bytes that this section will occupy in memory at runtime
lldb::offset_t m_file_offset; // Object file offset (if any)
lldb::offset_t m_file_size; // Object file size (can be smaller than m_byte_size for zero filled sections...)
+ uint32_t m_log2align; // log_2(align) of the section (i.e. section has to be aligned to 2^m_log2align)
SectionList m_children; // Child sections
bool m_fake:1, // If true, then this section only can contain the address if one of its
// children contains an address. This allows for gaps between the children
diff --git a/lldb/lib/Makefile b/lldb/lib/Makefile
index fe0e11b3e67..6913d010537 100644
--- a/lldb/lib/Makefile
+++ b/lldb/lib/Makefile
@@ -101,7 +101,9 @@ ifeq ($(HOST_OS),Darwin)
lldbPluginSymbolVendorMacOSX.a \
lldbPluginProcessDarwin.a \
lldbPluginProcessMachCore.a \
- lldbPluginSystemRuntimeMacOSX.a
+ lldbPluginSystemRuntimeMacOSX.a \
+ lldbPluginProcessElfCore.a \
+ lldbPluginJITLoaderGDB.a
endif
ifeq ($(HOST_OS),Linux)
diff --git a/lldb/source/Core/Section.cpp b/lldb/source/Core/Section.cpp
index deaebb4cc1a..3267c186622 100644
--- a/lldb/source/Core/Section.cpp
+++ b/lldb/source/Core/Section.cpp
@@ -27,6 +27,7 @@ Section::Section (const ModuleSP &module_sp,
addr_t byte_size,
lldb::offset_t file_offset,
lldb::offset_t file_size,
+ uint32_t log2align,
uint32_t flags) :
ModuleChild (module_sp),
UserID (sect_id),
@@ -39,6 +40,7 @@ Section::Section (const ModuleSP &module_sp,
m_byte_size (byte_size),
m_file_offset (file_offset),
m_file_size (file_size),
+ m_log2align (log2align),
m_children (),
m_fake (false),
m_encrypted (false),
@@ -58,6 +60,7 @@ Section::Section (const lldb::SectionSP &parent_section_sp,
addr_t byte_size,
lldb::offset_t file_offset,
lldb::offset_t file_size,
+ uint32_t log2align,
uint32_t flags) :
ModuleChild (module_sp),
UserID (sect_id),
@@ -70,6 +73,7 @@ Section::Section (const lldb::SectionSP &parent_section_sp,
m_byte_size (byte_size),
m_file_offset (file_offset),
m_file_size (file_size),
+ m_log2align (log2align),
m_children (),
m_fake (false),
m_encrypted (false),
@@ -142,7 +146,7 @@ Section::GetLoadBaseAddress (Target *target) const
if (load_base_addr != LLDB_INVALID_ADDRESS)
load_base_addr += GetOffset();
}
- else
+ if (load_base_addr == LLDB_INVALID_ADDRESS)
{
load_base_addr = target->GetSectionLoadList().GetSectionLoadAddress (const_cast<Section *>(this)->shared_from_this());
}
diff --git a/lldb/source/Expression/IRExecutionUnit.cpp b/lldb/source/Expression/IRExecutionUnit.cpp
index 9934a3bb749..90d8d76cd55 100644
--- a/lldb/source/Expression/IRExecutionUnit.cpp
+++ b/lldb/source/Expression/IRExecutionUnit.cpp
@@ -917,6 +917,7 @@ IRExecutionUnit::PopulateSectionList (lldb_private::ObjectFile *obj_file,
record.m_size,
record.m_host_address, // file_offset (which is the host address for the data)
record.m_size, // file_size
+ 0,
record.m_permissions)); // flags
section_list.AddSection (section_sp);
}
diff --git a/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp b/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
index d95271ec14d..905984d3341 100644
--- a/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
+++ b/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
@@ -102,13 +102,15 @@ JITLoaderGDB::SetJITBreakpoint(lldb_private::ModuleList &module_list)
log->Printf("JITLoaderGDB::%s looking for JIT register hook",
__FUNCTION__);
- addr_t jit_addr = GetSymbolAddress(
- module_list, ConstString("__jit_debug_register_code"), eSymbolTypeAny);
+ addr_t jit_addr = GetSymbolAddress(module_list,
+ ConstString("__jit_debug_register_code"),
+ eSymbolTypeAny);
if (jit_addr == LLDB_INVALID_ADDRESS)
return;
- m_jit_descriptor_addr = GetSymbolAddress(
- module_list, ConstString("__jit_debug_descriptor"), eSymbolTypeData);
+ m_jit_descriptor_addr = GetSymbolAddress(module_list,
+ ConstString("__jit_debug_descriptor"),
+ eSymbolTypeData);
if (m_jit_descriptor_addr == LLDB_INVALID_ADDRESS)
{
if (log)
@@ -144,6 +146,55 @@ JITLoaderGDB::JITDebugBreakpointHit(void *baton,
return instance->ReadJITDescriptor(false);
}
+static void updateSectionLoadAddress(const SectionList &section_list,
+ Target &target,
+ uint64_t symbolfile_addr,
+ uint64_t symbolfile_size,
+ uint64_t &vmaddrheuristic,
+ uint64_t &min_addr,
+ uint64_t &max_addr)
+{
+ const uint32_t num_sections = section_list.GetSize();
+ for (uint32_t i = 0; i<num_sections; ++i)
+ {
+ SectionSP section_sp(section_list.GetSectionAtIndex(i));
+ if (section_sp)
+ {
+ if(section_sp->IsFake()) {
+ uint64_t lower = (uint64_t)-1;
+ uint64_t upper = 0;
+ updateSectionLoadAddress(section_sp->GetChildren(), target, symbolfile_addr, symbolfile_size, vmaddrheuristic,
+ lower, upper);
+ if (lower < min_addr)
+ min_addr = lower;
+ if (upper > max_addr)
+ max_addr = upper;
+ const lldb::addr_t slide_amount = lower - section_sp->GetFileAddress();
+ section_sp->Slide(slide_amount, false);
+ section_sp->GetChildren().Slide(-slide_amount, false);
+ section_sp->SetByteSize (upper - lower);
+ } else {
+ vmaddrheuristic += 2<<section_sp->GetLog2Align();
+ uint64_t lower;
+ if (section_sp->GetFileAddress() > vmaddrheuristic)
+ lower = section_sp->GetFileAddress();
+ else {
+ lower = symbolfile_addr+section_sp->GetFileOffset();
+ section_sp->SetFileAddress(symbolfile_addr+section_sp->GetFileOffset());
+ }
+ target.SetSectionLoadAddress(section_sp, lower, true);
+ uint64_t upper = lower + section_sp->GetByteSize();
+ if (lower < min_addr)
+ min_addr = lower;
+ if (upper > max_addr)
+ max_addr = upper;
+ // This is an upper bound, but a good enough heuristic
+ vmaddrheuristic += section_sp->GetByteSize();
+ }
+ }
+ }
+}
+
bool
JITLoaderGDB::ReadJITDescriptor(bool all_entries)
{
@@ -209,10 +260,27 @@ JITLoaderGDB::ReadJITDescriptor(bool all_entries)
if (module_sp && module_sp->GetObjectFile())
{
bool changed;
- m_jit_objects.insert(
- std::pair<lldb::addr_t, const lldb::ModuleSP>(
- symbolfile_addr, module_sp));
- module_sp->SetLoadAddress(target, 0, true, changed);
+ m_jit_objects.insert(std::make_pair(symbolfile_addr, module_sp));
+ if (module_sp->GetObjectFile()->GetPluginName() == ConstString("mach-o"))
+ {
+ ObjectFile *image_object_file = module_sp->GetObjectFile();
+ if (image_object_file)
+ {
+ const SectionList *section_list = image_object_file->GetSectionList ();
+ if (section_list)
+ {
+ uint64_t vmaddrheuristic = 0;
+ uint64_t lower = (uint64_t)-1;
+ uint64_t upper = 0;
+ updateSectionLoadAddress(*section_list, target, symbolfile_addr, symbolfile_size,
+ vmaddrheuristic, lower, upper);
+ }
+ }
+ }
+ else
+ {
+ module_sp->SetLoadAddress(target, 0, true, changed);
+ }
// load the symbol table right away
module_sp->GetObjectFile()->GetSymtab();
diff --git a/lldb/source/Plugins/Makefile b/lldb/source/Plugins/Makefile
index eb15cf97993..ed8c3b74ec3 100644
--- a/lldb/source/Plugins/Makefile
+++ b/lldb/source/Plugins/Makefile
@@ -33,6 +33,8 @@ DIRS += SymbolVendor/MacOSX
#DIRS += Process/MacOSX-User
DIRS += Process/mach-core
DIRS += SystemRuntime/MacOSX
+DIRS += Process/elf-core
+DIRS += JITLoader/GDB
endif
ifeq ($(HOST_OS),Linux)
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index e4de46e24a1..688b64cca81 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -1236,6 +1236,7 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
vm_size, // VM size in bytes of this section.
header.sh_offset, // Offset of this section in the file.
file_size, // Size of the section as found in the file.
+ __builtin_ffs(header.sh_addralign), // Alignment of the section
header.sh_flags)); // Flags for this section.
if (is_thread_specific)
diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index 9eab3a1dc17..9341e275096 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -1346,6 +1346,7 @@ ObjectFileMachO::CreateSections (SectionList &unified_section_list)
load_cmd.vmsize, // VM size in bytes of this section
load_cmd.fileoff, // Offset to the data for this section in the file
load_cmd.filesize, // Size in bytes of this section as found in the the file
+ 0, // Segments have no alignment information
load_cmd.flags)); // Flags for this section
segment_sp->SetIsEncrypted (segment_is_encrypted);
@@ -1474,6 +1475,7 @@ ObjectFileMachO::CreateSections (SectionList &unified_section_list)
sect64.size, // VM size in bytes of this section
sect64.offset, // Offset to the data for this section in the file
sect64.offset ? sect64.size : 0, // Size in bytes of this section as found in the the file
+ sect64.align,
load_cmd.flags)); // Flags for this section
segment_sp->SetIsFake(true);
@@ -1612,6 +1614,7 @@ ObjectFileMachO::CreateSections (SectionList &unified_section_list)
sect64.size,
sect64.offset,
sect64.offset == 0 ? 0 : sect64.size,
+ sect64.align,
sect64.flags));
// Set the section to be encrypted to match the segment
@@ -2022,7 +2025,7 @@ ObjectFileMachO::ParseSymtab ()
uint32_t memory_module_load_level = eMemoryModuleLoadLevelComplete;
- if (process)
+ if (process && m_header.filetype != llvm::MachO::MH_OBJECT)
{
Target &target = process->GetTarget();
diff --git a/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp b/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
index ca70b96651a..7b853423459 100644
--- a/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
+++ b/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp
@@ -753,6 +753,7 @@ ObjectFilePECOFF::CreateSections (SectionList &unified_section_list)
m_sect_headers[idx].vmsize, // VM size in bytes of this section
m_sect_headers[idx].offset, // Offset to the data for this section in the file
m_sect_headers[idx].size, // Size in bytes of this section as found in the the file
+ m_coff_header_opt.sect_alignment, // Section alignment
m_sect_headers[idx].flags)); // Flags for this section
//section_sp->SetIsEncrypted (segment_is_encrypted);
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