[Lldb-commits] [lldb] r271970 - Add support for using armv7 compact unwind information
Author: jmolenda
Date: Mon Jun 6 21:19:54 2016
New Revision: 271970
URL: http://llvm.org/viewvc/llvm-project?rev=271970=rev
Log:
Add support for using armv7 compact unwind information
as an asynchronous unwind plan source.
Two small fixes to the compact unwind dumper tool for
armv7 encodings.
A change to DWARFCallFrameInfo to strip the 0th bit on
addresses in eh_frame sections when armv7. In the
clang generated examples I have, the 0th bit is set for
thumb functions and that's causing the unwinder to pick
the wrong function for eh_frame info.
Modified:
lldb/trunk/include/lldb/Symbol/CompactUnwindInfo.h
lldb/trunk/source/Symbol/CompactUnwindInfo.cpp
lldb/trunk/source/Symbol/DWARFCallFrameInfo.cpp
lldb/trunk/tools/compact-unwind/compact-unwind-dumper.c
Modified: lldb/trunk/include/lldb/Symbol/CompactUnwindInfo.h
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Symbol/CompactUnwindInfo.h?rev=271970=271969=271970=diff
==
--- lldb/trunk/include/lldb/Symbol/CompactUnwindInfo.h (original)
+++ lldb/trunk/include/lldb/Symbol/CompactUnwindInfo.h Mon Jun 6 21:19:54 2016
@@ -136,6 +136,9 @@ private:
bool
CreateUnwindPlan_arm64 (Target , FunctionInfo _info,
UnwindPlan _plan, Address pc_or_function_start);
+bool
+CreateUnwindPlan_armv7 (Target , FunctionInfo _info,
UnwindPlan _plan, Address pc_or_function_start);
+
ObjectFile _objfile;
lldb::SectionSP m_section_sp;
lldb::DataBufferSP m_section_contents_if_encrypted; // if the
binary is encrypted, read the sect contents
Modified: lldb/trunk/source/Symbol/CompactUnwindInfo.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Symbol/CompactUnwindInfo.cpp?rev=271970=271969=271970=diff
==
--- lldb/trunk/source/Symbol/CompactUnwindInfo.cpp (original)
+++ lldb/trunk/source/Symbol/CompactUnwindInfo.cpp Mon Jun 6 21:19:54 2016
@@ -104,24 +104,49 @@ namespace lldb_private {
FLAGS_ANONYMOUS_ENUM()
{
- UNWIND_ARM64_MODE_MASK = 0x0F00,
- UNWIND_ARM64_MODE_FRAMELESS= 0x0200,
- UNWIND_ARM64_MODE_DWARF= 0x0300,
- UNWIND_ARM64_MODE_FRAME= 0x0400,
-
- UNWIND_ARM64_FRAME_X19_X20_PAIR= 0x0001,
- UNWIND_ARM64_FRAME_X21_X22_PAIR= 0x0002,
- UNWIND_ARM64_FRAME_X23_X24_PAIR= 0x0004,
- UNWIND_ARM64_FRAME_X25_X26_PAIR= 0x0008,
- UNWIND_ARM64_FRAME_X27_X28_PAIR= 0x0010,
- UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x0100,
- UNWIND_ARM64_FRAME_D10_D11_PAIR= 0x0200,
- UNWIND_ARM64_FRAME_D12_D13_PAIR= 0x0400,
- UNWIND_ARM64_FRAME_D14_D15_PAIR= 0x0800,
+UNWIND_ARM64_MODE_MASK = 0x0F00,
+UNWIND_ARM64_MODE_FRAMELESS= 0x0200,
+UNWIND_ARM64_MODE_DWARF= 0x0300,
+UNWIND_ARM64_MODE_FRAME= 0x0400,
+
+UNWIND_ARM64_FRAME_X19_X20_PAIR= 0x0001,
+UNWIND_ARM64_FRAME_X21_X22_PAIR= 0x0002,
+UNWIND_ARM64_FRAME_X23_X24_PAIR= 0x0004,
+UNWIND_ARM64_FRAME_X25_X26_PAIR= 0x0008,
+UNWIND_ARM64_FRAME_X27_X28_PAIR= 0x0010,
+UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x0100,
+UNWIND_ARM64_FRAME_D10_D11_PAIR= 0x0200,
+UNWIND_ARM64_FRAME_D12_D13_PAIR= 0x0400,
+UNWIND_ARM64_FRAME_D14_D15_PAIR= 0x0800,
- UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000,
- UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FF,
+UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000,
+UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FF,
};
+
+FLAGS_ANONYMOUS_ENUM()
+{
+UNWIND_ARM_MODE_MASK = 0x0F00,
+UNWIND_ARM_MODE_FRAME= 0x0100,
+UNWIND_ARM_MODE_FRAME_D = 0x0200,
+UNWIND_ARM_MODE_DWARF= 0x0400,
+
+UNWIND_ARM_FRAME_STACK_ADJUST_MASK = 0x00C0,
+
+UNWIND_ARM_FRAME_FIRST_PUSH_R4 = 0x0001,
+UNWIND_ARM_FRAME_FIRST_PUSH_R5 = 0x0002,
+UNWIND_ARM_FRAME_FIRST_PUSH_R6 = 0x0004,
+
+UNWIND_ARM_FRAME_SECOND_PUSH_R8 = 0x0008,
+UNWIND_ARM_FRAME_SECOND_PUSH_R9 = 0x0010,
+UNWIND_ARM_FRAME_SECOND_PUSH_R10 = 0x0020,
+UNWIND_ARM_FRAME_SECOND_PUSH_R11 = 0x0040,
+
[Lldb-commits] LLVM buildmaster will be restarted tonight
Hello everyone, LLVM buildmaster will be updated and restarted after 6 PM Pacific time today. Thanks Galina ___ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
[Lldb-commits] Buildbot numbers for the last week of 5/29/2016 - 6/04/2016
Hello everyone, Below are some buildbot numbers for the last week of 5/29/2016 - 6/04/2016. I added new statistics with a longest time each builder was red during the last week. Thanks Galina buildername| was_red ---+--- lldb-amd64-ninja-freebsd11| 127:35:48 lldb-x86-windows-msvc2015 | 59:50:06 clang-cmake-aarch64-full | 55:23:35 clang-native-arm-lnt | 51:46:54 clang-cmake-aarch64-quick | 51:15:59 clang-ppc64le-linux-lnt | 51:09:46 clang-ppc64be-linux-lnt | 51:06:10 lldb-x86_64-ubuntu-14.04-buildserver | 44:38:46 perf-x86_64-penryn-O3-polly-before-vectorizer-detect-only | 29:25:21 clang-x64-ninja-win7 | 29:21:27 sanitizer-windows | 25:33:14 clang-atom-d525-fedora-rel| 24:35:03 perf-x86_64-penryn-O3 | 21:52:44 clang-x86-win2008-selfhost| 21:43:03 perf-x86_64-penryn-O3-polly | 18:19:52 perf-x86_64-penryn-O3-polly-unprofitable | 17:18:59 sanitizer-x86_64-linux| 15:54:00 polly-amd64-linux | 15:17:59 clang-cmake-mipsel| 14:17:09 perf-x86_64-penryn-O3-polly-fast | 11:54:11 clang-cmake-mips | 10:53:16 clang-cmake-armv7-a15-selfhost-neon | 10:52:14 clang-cmake-thumbv7-a15-full-sh | 10:29:41 clang-ppc64be-linux-multistage| 10:13:14 clang-ppc64be-linux | 09:43:42 clang-s390x-linux | 09:38:57 llvm-mips-linux | 09:32:24 clang-ppc64le-linux-multistage| 08:14:25 lldb-x86_64-ubuntu-14.04-android | 07:59:04 sanitizer-x86_64-linux-fast | 07:35:17 lldb-windows7-android | 07:34:49 lldb-x86_64-ubuntu-14.04-cmake| 07:05:09 sanitizer-x86_64-linux-bootstrap | 06:49:43 lldb-x86_64-darwin-13.4 | 06:45:12 sanitizer-x86_64-linux-autoconf | 06:30:49 libcxx-libcxxabi-x86_64-linux-debian-noexceptions | 05:47:43 clang-cmake-armv7-a15-selfhost| 05:16:15 llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast | 04:23:52 sanitizer-ppc64le-linux | 03:52:34 clang-cmake-armv7-a15 | 03:28:39 clang-cmake-armv7-a15-full| 02:50:25 lldb-amd64-ninja-netbsd7 | 02:03:29 sanitizer-x86_64-linux-fuzzer | 02:03:04 clang-cmake-thumbv7-a15 | 01:33:30 libcxx-libcxxabi-arm-linux| 01:25:26 clang-ppc64le-linux | 01:19:53 sanitizer-ppc64be-linux | 01:17:50 clang-x86_64-linux-selfhost-modules | 01:07:57 llvm-sphinx-docs | 01:07:31 llvm-clang-lld-x86_64-debian-fast | 00:59:48 clang-x86_64-debian-fast | 00:59:21 clang-hexagon-elf | 00:51:32 llvm-hexagon-elf | 00:48:00 clang-sphinx-docs | 00:47:34 clang-x86_64-linux-abi-test | 00:40:39 perf-x86_64-penryn-O3-polly-parallel-fast | 00:39:01 clang-bpf-build | 00:38:22 llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast| 00:33:22 lld-x86_64-darwin13 | 00:28:24 lld-x86_64-win7 | 00:24:56 libcxx-libcxxabi-x86_64-linux-ubuntu-asan | 00:17:19 (61 rows) "Status change ratio" by active builder (percent of builds that changed the builder status from greed to red or from red to green): buildername| builds | changes | status change ratio ++-+- perf-x86_64-penryn-O3-polly
Re: [Lldb-commits] [PATCH] D21032: Eliminate differences in lldbinline-generated Makefiles and ensure they're regenerated every time
tfiala accepted this revision. tfiala added a comment. This revision is now accepted and ready to land. Looks good, Sean! Repository: rL LLVM http://reviews.llvm.org/D21032 ___ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
Re: [Lldb-commits] [PATCH] D17856: Fix expression evaluation with operator new
labath added a comment. Sean, could you find some time to look at this please? http://reviews.llvm.org/D17856 ___ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
[Lldb-commits] [PATCH] D21032: Eliminate differences in lldbinline-generated Makefiles and ensure they're regenerated every time
spyffe created this revision.
spyffe added a reviewer: tfiala.
spyffe added a subscriber: lldb-commits.
spyffe set the repository for this revision to rL LLVM.
To eliminate problems where 'lldbinline.py'-generated Makefiles are re-used,
I've standardized the generation of them. The testsuite now asserts if there
is a discrepancy between what is there and what 'lldbinline.py' would generate.
I've also eliminated all cases where what is there is legitimately different
from what 'lldbinline.py' would generate.
Repository:
rL LLVM
http://reviews.llvm.org/D21032
Files:
packages/Python/lldbsuite/test/functionalities/data-formatter/dump_dynamic/Makefile
packages/Python/lldbsuite/test/functionalities/data-formatter/setvaluefromcstring/Makefile
packages/Python/lldbsuite/test/functionalities/data-formatter/stringprinter/Makefile
packages/Python/lldbsuite/test/functionalities/data-formatter/typedef_array/Makefile
packages/Python/lldbsuite/test/lang/c/struct_types/Makefile
packages/Python/lldbsuite/test/lang/cpp/const_this/Makefile
packages/Python/lldbsuite/test/lang/cpp/extern_c/Makefile
packages/Python/lldbsuite/test/lang/objc/objc-runtime-ivars/Makefile
packages/Python/lldbsuite/test/lldbinline.py
packages/Python/lldbsuite/test/python_api/sbvalue_const_addrof/Makefile
Index: packages/Python/lldbsuite/test/python_api/sbvalue_const_addrof/Makefile
===
--- packages/Python/lldbsuite/test/python_api/sbvalue_const_addrof/Makefile
+++ packages/Python/lldbsuite/test/python_api/sbvalue_const_addrof/Makefile
@@ -1,4 +1,13 @@
LEVEL = ../../make
CXX_SOURCES := main.cpp
CXXFLAGS += -std=c++11
+ifneq (,$(findstring clang,$(CC)))
+CFLAGS_EXTRAS += -fno-limit-debug-info
+endif
+
include $(LEVEL)/Makefile.rules
+
+
+cleanup:
+ rm -f Makefile *.d
+
Index: packages/Python/lldbsuite/test/lldbinline.py
===
--- packages/Python/lldbsuite/test/lldbinline.py
+++ packages/Python/lldbsuite/test/lldbinline.py
@@ -2,7 +2,9 @@
from __future__ import absolute_import
# System modules
+import filecmp
import os
+import sys
# Third-party modules
@@ -89,9 +91,6 @@
return "-N dsym %s" % (self.mydir)
def BuildMakefile(self):
-if os.path.exists("Makefile"):
-return
-
categories = {}
for f in os.listdir(os.getcwd()):
@@ -102,7 +101,7 @@
else:
categories[t] = [f]
-makefile = open("Makefile", 'w+')
+makefile = open("Makefile.tmp", 'w+')
level = os.sep.join([".."] * len(self.mydir.split(os.sep))) + os.sep + "make"
@@ -118,11 +117,26 @@
if ('CXX_SOURCES' in list(categories.keys())):
makefile.write("CXXFLAGS += -std=c++11\n")
-makefile.write("include $(LEVEL)/Makefile.rules\n")
+# clang-3.5+ outputs FullDebugInfo by default for Darwin/FreeBSD
+# targets. Other targets do not, which causes this test to fail.
+# This flag enables FullDebugInfo for all targets.
+
+makefile.write("ifneq (,$(findstring clang,$(CC)))\n")
+makefile.write("CFLAGS_EXTRAS += -fno-limit-debug-info\n")
+makefile.write("endif\n\n")
+
+makefile.write("include $(LEVEL)/Makefile.rules\n\n")
+
makefile.write("\ncleanup:\n\trm -f Makefile *.d\n\n")
makefile.flush()
makefile.close()
+if os.path.exists("Makefile"):
+if not filecmp.cmp("Makefile", "Makefile.tmp"):
+sys.exit("Existing Makefile doesn't match generated Makefile!")
+
+os.rename("Makefile.tmp", "Makefile")
+
@skipUnlessDarwin
def __test_with_dsym(self):
self.using_dsym = True
Index: packages/Python/lldbsuite/test/lang/objc/objc-runtime-ivars/Makefile
===
--- packages/Python/lldbsuite/test/lang/objc/objc-runtime-ivars/Makefile
+++ packages/Python/lldbsuite/test/lang/objc/objc-runtime-ivars/Makefile
@@ -1,6 +1,13 @@
LEVEL = ../../../make
-
OBJC_SOURCES := main.m
LDFLAGS = $(CFLAGS) -lobjc -framework Foundation
+ifneq (,$(findstring clang,$(CC)))
+CFLAGS_EXTRAS += -fno-limit-debug-info
+endif
include $(LEVEL)/Makefile.rules
+
+
+cleanup:
+ rm -f Makefile *.d
+
Index: packages/Python/lldbsuite/test/lang/cpp/extern_c/Makefile
===
--- packages/Python/lldbsuite/test/lang/cpp/extern_c/Makefile
+++ packages/Python/lldbsuite/test/lang/cpp/extern_c/Makefile
@@ -1,3 +1,13 @@
LEVEL = ../../../make
CXX_SOURCES := main.cpp
+CXXFLAGS += -std=c++11
+ifneq (,$(findstring clang,$(CC)))
+CFLAGS_EXTRAS += -fno-limit-debug-info
+endif
+
include $(LEVEL)/Makefile.rules
+
+
+cleanup:
+ rm -f Makefile *.d
+
Index: packages/Python/lldbsuite/test/lang/cpp/const_this/Makefile
Re: [Lldb-commits] [PATCH] D20990: Don't remove PIE executables when using svr4 packets
This revision was automatically updated to reflect the committed changes.
Closed by commit rL271899: Don't remove PIE executables when using svr4 packets
(authored by fjricci).
Changed prior to commit:
http://reviews.llvm.org/D20990?vs=59637=59723#toc
Repository:
rL LLVM
http://reviews.llvm.org/D20990
Files:
lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
Index: lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
===
--- lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -4875,11 +4875,10 @@
found = true;
}
-if (!found)
+// The main executable will never be included in libraries-svr4,
don't remove it
+if (!found && loaded_module.get() !=
target.GetExecutableModulePointer())
{
-lldb_private::ObjectFile * obj = loaded_module->GetObjectFile
();
-if (obj && obj->GetType () !=
ObjectFile::Type::eTypeExecutable)
-removed_modules.Append (loaded_module);
+removed_modules.Append (loaded_module);
}
}
Index: lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
===
--- lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -4875,11 +4875,10 @@
found = true;
}
-if (!found)
+// The main executable will never be included in libraries-svr4, don't remove it
+if (!found && loaded_module.get() != target.GetExecutableModulePointer())
{
-lldb_private::ObjectFile * obj = loaded_module->GetObjectFile ();
-if (obj && obj->GetType () != ObjectFile::Type::eTypeExecutable)
-removed_modules.Append (loaded_module);
+removed_modules.Append (loaded_module);
}
}
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[Lldb-commits] [lldb] r271899 - Don't remove PIE executables when using svr4 packets
Author: fjricci
Date: Mon Jun 6 10:00:50 2016
New Revision: 271899
URL: http://llvm.org/viewvc/llvm-project?rev=271899=rev
Log:
Don't remove PIE executables when using svr4 packets
Summary:
Because PIE executables have an e_type of llvm::ELF::ET_DYN,
they are not of type eTypeExecutable, and were being removed
when svr4 packets were used.
Reviewers: clayborg, ADodds, tfiala, sas
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D20990
Modified:
lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
Modified: lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp?rev=271899=271898=271899=diff
==
--- lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp (original)
+++ lldb/trunk/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp Mon Jun
6 10:00:50 2016
@@ -4875,11 +4875,10 @@ ProcessGDBRemote::LoadModules (LoadedMod
found = true;
}
-if (!found)
+// The main executable will never be included in libraries-svr4,
don't remove it
+if (!found && loaded_module.get() !=
target.GetExecutableModulePointer())
{
-lldb_private::ObjectFile * obj = loaded_module->GetObjectFile
();
-if (obj && obj->GetType () !=
ObjectFile::Type::eTypeExecutable)
-removed_modules.Append (loaded_module);
+removed_modules.Append (loaded_module);
}
}
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[Lldb-commits] [lldb] r271876 - (Minor tweak) Make RegisterContextWindows_x86/x64::GetRegisterInfoAtIndex
Author: carlokok
Date: Mon Jun 6 04:40:27 2016
New Revision: 271876
URL: http://llvm.org/viewvc/llvm-project?rev=271876=rev
Log:
(Minor tweak) Make RegisterContextWindows_x86/x64::GetRegisterInfoAtIndex
return NULL for an invalid register.
The unwind logic asks for the "return address register" which doesn't exist
on x86/x86_64, returns -1 and calls this with -1 as a parameter, ends up
out of scope of the array bounds for g_register_infos and later SIGSEGVs
on accessing. This now matches the other GetRegisterInfoAtIndex for
other platforms.
Modified:
lldb/trunk/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp
lldb/trunk/source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp
Modified:
lldb/trunk/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp?rev=271876=271875=271876=diff
==
---
lldb/trunk/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp
(original)
+++
lldb/trunk/source/Plugins/Process/Windows/Common/x64/RegisterContextWindows_x64.cpp
Mon Jun 6 04:40:27 2016
@@ -136,6 +136,8 @@ RegisterInfo g_register_infos[] = {
nullptr},
};
+static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
+
// Array of lldb register numbers used to define the set of all General
Purpose Registers
uint32_t g_gpr_reg_indices[] = {eRegisterIndexRax, eRegisterIndexRbx,
eRegisterIndexRcx, eRegisterIndexRdx,
eRegisterIndexRdi, eRegisterIndexRsi,
eRegisterIndexR8, eRegisterIndexR9,
@@ -169,7 +171,9 @@ RegisterContextWindows_x64::GetRegisterC
const RegisterInfo *
RegisterContextWindows_x64::GetRegisterInfoAtIndex(size_t reg)
{
-return _register_infos[reg];
+if (reg < k_num_register_infos)
+return _register_infos[reg];
+return NULL;
}
size_t
Modified:
lldb/trunk/source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp?rev=271876=271875=271876=diff
==
---
lldb/trunk/source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp
(original)
+++
lldb/trunk/source/Plugins/Process/Windows/Common/x86/RegisterContextWindows_x86.cpp
Mon Jun 6 04:40:27 2016
@@ -64,6 +64,7 @@ RegisterInfo g_register_infos[] =
{ DEFINE_GPR(eip,"pc"), { ehframe_eip_i386, dwarf_eip_i386,
LLDB_REGNUM_GENERIC_PC,LLDB_INVALID_REGNUM, lldb_eip_i386 }, nullptr,
nullptr},
{ DEFINE_GPR_BIN(eflags, "flags"), { ehframe_eflags_i386,
dwarf_eflags_i386, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM,
lldb_eflags_i386}, nullptr, nullptr},
};
+static size_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
// Array of lldb register numbers used to define the set of all General
Purpose Registers
uint32_t g_gpr_reg_indices[] =
@@ -106,7 +107,9 @@ RegisterContextWindows_x86::GetRegisterC
const RegisterInfo *
RegisterContextWindows_x86::GetRegisterInfoAtIndex(size_t reg)
{
-return _register_infos[reg];
+if (reg < k_num_register_infos)
+return _register_infos[reg];
+return NULL;
}
size_t
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