6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-28 19:31:58 +00:00
Code Issues Projects Releases Wiki Activity

llvm-objdump: Handle BSS sections larger than the object file

Browse Source 
The size of the uninitialized sections, like BSS, can exceed the size of
the object file.

Do not attempt to grab the contents of such sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212953 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer 2014-07-14 16:20:14 +00:00
parent 9e251d6d41
commit e3aafccae9
3 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
test/tools/llvm-objdump/Inputs/large-bss.obj.coff-i386 Normal file
View File

Binary file not shown.

6
test/tools/llvm-objdump/coff-large-bss.test Normal file
View File

@ -0,0 +1,6 @@
RUN: llvm-objdump -s %p/Inputs/large-bss.obj.coff-i386 | FileCheck %s
; CHECK: Contents of section .text:
: CHECK-NEXT: Contents of section .data:
: CHECK-NEXT: Contents of section .bss:
: CHECK-NEXT: <skipping contents of bss section at [0000, 010f)>

12
tools/llvm-objdump/llvm-objdump.cpp
View File

@ -628,8 +628,6 @@ static void PrintSectionContents(const ObjectFile *Obj) {
bool BSS;
if (error(Section.getName(Name)))
continue;
if (error(Section.getContents(Contents)))
continue;
if (error(Section.getAddress(BaseAddr)))
continue;
if (error(Section.isBSS(BSS)))
@ -637,12 +635,18 @@ static void PrintSectionContents(const ObjectFile *Obj) {
outs() << "Contents of section " << Name << ":\n";
if (BSS) {
uint64_t Size;
if (error(Section.getSize(Size)))
continue;
outs() << format("<skipping contents of bss section at [%04" PRIx64
", %04" PRIx64 ")>\n", BaseAddr,
BaseAddr + Contents.size());
", %04" PRIx64 ")>\n",
BaseAddr, BaseAddr + Size);
continue;
}
if (error(Section.getContents(Contents)))
continue;
// Dump out the content as hex and printable ascii characters.
for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) {
outs() << format(" %04" PRIx64 " ", BaseAddr + addr);