Hi folks
I've synced with the head of the tree this morning and rebuilt and I'm seeing
another assertion failure impacting my 32-bit linux experience. Running my test
app looks like this:
$ lldb hello
Current executable set to 'hello' (i386).
(lldb) log enable linux ptrace
(lldb) run
operation ptrace(PTRACE_SETOPTIONS, 8832, (nil), 0x58, 0)=0 called from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 1456
operation ptrace(PTRACE_TRACEME, 0, (nil), (nil), 0)=0 called from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 1196
Process 8832 launching
operation ptrace(PTRACE_PEEKDATA, 8832, 0x8048340, (nil), 0)=895EED31 called
from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 245
operation ptrace(PTRACE_PEEKDATA, 8832, 0x8048340, (nil), 0)=895EED31 called
from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 245
operation ptrace(PTRACE_POKEDATA, 8832, 0x8048340, 0x895eedcc, 0)=0 called from
file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 319
operation ptrace(PTRACE_PEEKDATA, 8832, 0x8048340, (nil), 0)=895EEDCC called
from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 245
operation ptrace(PTRACE_POKEUSER, 8832, 0x2a8, 0xffffffff, 0)=FFFFFFFF called
from file
/home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
line 543
operation ptrace() failed; errno=5 (<unknown>)
lldb: /home/mg11/src/heracles2/llvm/tools/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_x86.cpp:511: virtual bool
RegisterContextPOSIXProcessMonitor_x86_64::IsWatchpointHit(uint32_t): Assertion `false && "Could not initialize watchpoint registers"' failed.
Aborted (core dumped)
The source of the failure is now:
bool
RegisterContextPOSIXProcessMonitor_x86_64::IsWatchpointHit(uint32_t hw_index)
{
bool is_hit = false;
if (m_watchpoints_initialized == false)
{
// Reset the debug status and debug control registers
RegisterValue zero_bits = RegisterValue(uint64_t(0));
if (!WriteRegister(m_reg_info.first_dr + 6, zero_bits) ||
!WriteRegister(m_reg_info.first_dr + 7, zero_bits))
--> assert(false && "Could not initialize watchpoint registers");
I'll re-sync and build, just to rule out my wimpy build environment, then start
digging again...
Matt
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