rpms
/
bpftrace
7
0
Fork 0
Code Issues Pull Requests Releases Activity
bpftrace/SOURCES/bpftrace-0.11.1-irbuilderbp...

283 lines
13 KiB
Diff
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

From 0768e5f58d39ebb60c18813ea77953be00ce5830 Mon Sep 17 00:00:00 2001
From: Ovidiu Panait <ovidiu.panait@windriver.com>
Date: Thu, 6 Aug 2020 10:34:23 +0300
Subject: [PATCH] irbuilderbpf.cpp, bpforc.h: Fix compilation with LLVM 11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Fixes: #1384
Fix the following build errors when compiling with LLVM 11:
#1
----
/llvm/include/llvm/ExecutionEngine/Orc/Legacy.h:118:35: error: no match for call to ‘(bpftrace::BpfOrc::BpfOrc(llvm::TargetMachine*)::<lambda(const string&)>) (llvm::StringRef)’
118 | if (JITSymbol Sym = FindSymbol(*S)) {
| ~~~~~~~~~~^~~~
/llvm/include/llvm/ExecutionEngine/Orc/Legacy.h:118:35: note: candidate: ‘llvm::JITSymbol (*)(const string&)’ {aka ‘llvm::JITSymbol (*)(const std::__cxx11::basic_string<char>&)’} <conversion>
/llvm/include/llvm/ExecutionEngine/Orc/Legacy.h:118:35: note: candidate expects 2 arguments, 2 provided
In file included from /work/src/github.com/iovisor/bpftrace/src/ast/codegen_llvm.cpp:5:
/work/src/github.com/iovisor/bpftrace/src/bpforc.h:99:13: note: candidate: ‘bpftrace::BpfOrc::BpfOrc(llvm::TargetMachine*)::<lambda(const string&)>’
99 | [](const std::string &Name __attribute__((unused))) -> JITSymbol {
| ^
/work/src/github.com/iovisor/bpftrace/src/bpforc.h:99:13: note: no known conversion for argument 1 from ‘llvm::StringRef’ to ‘const string&’ {aka ‘const std::__cxx11::basic_string<char>&’}
In file included from /llvm/include/llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h:23,
#2
----
| /src/ast/irbuilderbpf.cpp: In member function 'llvm::CallInst* bpftrace::ast::IRBuilderBPF::createMapLookup(int, llvm::AllocaInst*)':
| /src/ast/irbuilderbpf.cpp:230:65: error: no matching function for call to 'bpftrace::ast::IRBuilderBPF::CreateCall(llvm::Constant*&, <brace-enclosed initializer list>, const char [12])'
| 230 | return CreateCall(lookup_func, { map_ptr, key }, "lookup_elem");
| | ^
| In file included from /src/ast/irbuilderbpf.h:9,
| from /src/ast/async_event_types.h:3,
| from /src/ast/irbuilderbpf.cpp:5:
| /usr/include/llvm/IR/IRBuilder.h:2324:13: note: candidate: 'llvm::CallInst* llvm::IRBuilderBase::CreateCall(llvm::FunctionType*, llvm::Value*, llvm::ArrayRef<llvm::Value*>, const llvm::Twine&, llvm::MDNode*)'
| 2324 | CallInst *CreateCall(FunctionType *FTy, Value *Callee,
| | ^~~~~~~~~~
| /usr/include/llvm/IR/IRBuilder.h:2324:38: note: no known conversion for argument 1 from 'llvm::Constant*' to 'llvm::FunctionType*'
| 2324 | CallInst *CreateCall(FunctionType *FTy, Value *Callee,
| | ~~~~~~~~~~~~~~^~~
The CreateCall part is based on the llvm 11 fix from bcc:
https://github.com/iovisor/bcc/commit/45e63f2b316cdce2d8cc925f6f14a8726ade9ff6
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
---
src/ast/irbuilderbpf.cpp | 55 ++++++++++++++++++++++++++--------------
src/ast/irbuilderbpf.h | 1 +
src/bpforc.h | 6 +++++
3 files changed, 43 insertions(+), 19 deletions(-)
diff --git a/src/ast/irbuilderbpf.cpp b/src/ast/irbuilderbpf.cpp
index 8ae055e..4498e0f 100644
--- a/src/ast/irbuilderbpf.cpp
+++ b/src/ast/irbuilderbpf.cpp
@@ -201,10 +201,25 @@ llvm::Type *IRBuilderBPF::GetType(const SizedType &stype)
return ty;
}
+CallInst *IRBuilderBPF::createCall(Value *callee,
+ ArrayRef<Value *> args,
+ const Twine &Name)
+{
+#if LLVM_VERSION_MAJOR >= 11
+ auto *calleePtrType = cast<PointerType>(callee->getType());
+ auto *calleeType = cast<FunctionType>(calleePtrType->getElementType());
+ return CreateCall(calleeType, callee, args, Name);
+#else
+ return CreateCall(callee, args, Name);
+#endif
+}
+
CallInst *IRBuilderBPF::CreateBpfPseudoCall(int mapfd)
{
Function *pseudo_func = module_.getFunction("llvm.bpf.pseudo");
- return CreateCall(pseudo_func, {getInt64(BPF_PSEUDO_MAP_FD), getInt64(mapfd)}, "pseudo");
+ return createCall(pseudo_func,
+ { getInt64(BPF_PSEUDO_MAP_FD), getInt64(mapfd) },
+ "pseudo");
}
CallInst *IRBuilderBPF::CreateBpfPseudoCall(Map &map)
@@ -227,7 +242,7 @@ CallInst *IRBuilderBPF::createMapLookup(int mapfd, AllocaInst *key)
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_map_lookup_elem),
lookup_func_ptr_type);
- return CreateCall(lookup_func, { map_ptr, key }, "lookup_elem");
+ return createCall(lookup_func, { map_ptr, key }, "lookup_elem");
}
CallInst *IRBuilderBPF::CreateGetJoinMap(Value *ctx, const location &loc)
@@ -325,7 +340,7 @@ void IRBuilderBPF::CreateMapUpdateElem(Value *ctx,
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_map_update_elem),
update_func_ptr_type);
- CallInst *call = CreateCall(update_func,
+ CallInst *call = createCall(update_func,
{ map_ptr, key, val, flags },
"update_elem");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_map_update_elem, loc);
@@ -349,7 +364,7 @@ void IRBuilderBPF::CreateMapDeleteElem(Value *ctx,
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_map_delete_elem),
delete_func_ptr_type);
- CallInst *call = CreateCall(delete_func, { map_ptr, key }, "delete_elem");
+ CallInst *call = createCall(delete_func, { map_ptr, key }, "delete_elem");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_map_delete_elem, loc);
}
@@ -378,7 +393,7 @@ void IRBuilderBPF::CreateProbeRead(Value *ctx,
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_probe_read),
proberead_func_ptr_type);
- CallInst *call = CreateCall(proberead_func, { dst, size, src }, "probe_read");
+ CallInst *call = createCall(proberead_func, { dst, size, src }, "probe_read");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_probe_read, loc);
}
@@ -413,7 +428,7 @@ CallInst *IRBuilderBPF::CreateProbeReadStr(Value *ctx,
{
assert(ctx && ctx->getType() == getInt8PtrTy());
Constant *fn = createProbeReadStrFn(dst->getType(), src->getType());
- CallInst *call = CreateCall(fn,
+ CallInst *call = createCall(fn,
{ dst, getInt32(size), src },
"probe_read_str");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_probe_read_str, loc);
@@ -434,7 +449,7 @@ CallInst *IRBuilderBPF::CreateProbeReadStr(Value *ctx,
auto *size_i32 = CreateIntCast(size, getInt32Ty(), false);
Constant *fn = createProbeReadStrFn(dst->getType(), src->getType());
- CallInst *call = CreateCall(fn, { dst, size_i32, src }, "probe_read_str");
+ CallInst *call = createCall(fn, { dst, size_i32, src }, "probe_read_str");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_probe_read_str, loc);
return call;
}
@@ -717,7 +732,7 @@ CallInst *IRBuilderBPF::CreateGetNs()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_ktime_get_ns),
gettime_func_ptr_type);
- return CreateCall(gettime_func, {}, "get_ns");
+ return createCall(gettime_func, {}, "get_ns");
}
CallInst *IRBuilderBPF::CreateGetPidTgid()
@@ -730,7 +745,7 @@ CallInst *IRBuilderBPF::CreateGetPidTgid()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_current_pid_tgid),
getpidtgid_func_ptr_type);
- return CreateCall(getpidtgid_func, {}, "get_pid_tgid");
+ return createCall(getpidtgid_func, {}, "get_pid_tgid");
}
CallInst *IRBuilderBPF::CreateGetCurrentCgroupId()
@@ -744,7 +759,7 @@ CallInst *IRBuilderBPF::CreateGetCurrentCgroupId()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_current_cgroup_id),
getcgroupid_func_ptr_type);
- return CreateCall(getcgroupid_func, {}, "get_cgroup_id");
+ return createCall(getcgroupid_func, {}, "get_cgroup_id");
}
CallInst *IRBuilderBPF::CreateGetUidGid()
@@ -757,7 +772,7 @@ CallInst *IRBuilderBPF::CreateGetUidGid()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_current_uid_gid),
getuidgid_func_ptr_type);
- return CreateCall(getuidgid_func, {}, "get_uid_gid");
+ return createCall(getuidgid_func, {}, "get_uid_gid");
}
CallInst *IRBuilderBPF::CreateGetCpuId()
@@ -770,7 +785,7 @@ CallInst *IRBuilderBPF::CreateGetCpuId()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_smp_processor_id),
getcpuid_func_ptr_type);
- return CreateCall(getcpuid_func, {}, "get_cpu_id");
+ return createCall(getcpuid_func, {}, "get_cpu_id");
}
CallInst *IRBuilderBPF::CreateGetCurrentTask()
@@ -783,7 +798,7 @@ CallInst *IRBuilderBPF::CreateGetCurrentTask()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_current_task),
getcurtask_func_ptr_type);
- return CreateCall(getcurtask_func, {}, "get_cur_task");
+ return createCall(getcurtask_func, {}, "get_cur_task");
}
CallInst *IRBuilderBPF::CreateGetRandom()
@@ -796,7 +811,7 @@ CallInst *IRBuilderBPF::CreateGetRandom()
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_prandom_u32),
getrandom_func_ptr_type);
- return CreateCall(getrandom_func, {}, "get_random");
+ return createCall(getrandom_func, {}, "get_random");
}
CallInst *IRBuilderBPF::CreateGetStackId(Value *ctx,
@@ -826,7 +841,7 @@ CallInst *IRBuilderBPF::CreateGetStackId(Value *ctx,
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_stackid),
getstackid_func_ptr_type);
- CallInst *call = CreateCall(getstackid_func,
+ CallInst *call = createCall(getstackid_func,
{ ctx, map_ptr, flags_val },
"get_stackid");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_get_stackid, loc);
@@ -852,7 +867,7 @@ void IRBuilderBPF::CreateGetCurrentComm(Value *ctx,
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_get_current_comm),
getcomm_func_ptr_type);
- CallInst *call = CreateCall(getcomm_func,
+ CallInst *call = createCall(getcomm_func,
{ buf, getInt64(size) },
"get_comm");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_get_current_comm, loc);
@@ -883,7 +898,9 @@ void IRBuilderBPF::CreatePerfEventOutput(Value *ctx, Value *data, size_t size)
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_perf_event_output),
perfoutput_func_ptr_type);
- CreateCall(perfoutput_func, {ctx, map_ptr, flags_val, data, size_val}, "perf_event_output");
+ createCall(perfoutput_func,
+ { ctx, map_ptr, flags_val, data, size_val },
+ "perf_event_output");
}
void IRBuilderBPF::CreateSignal(Value *ctx, Value *sig, const location &loc)
@@ -899,7 +916,7 @@ void IRBuilderBPF::CreateSignal(Value *ctx, Value *sig, const location &loc)
Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_send_signal),
signal_func_ptr_type);
- CallInst *call = CreateCall(signal_func, { sig }, "signal");
+ CallInst *call = createCall(signal_func, { sig }, "signal");
CreateHelperErrorCond(ctx, call, libbpf::BPF_FUNC_send_signal, loc);
}
@@ -913,7 +930,7 @@ void IRBuilderBPF::CreateOverrideReturn(Value *ctx, Value *rc)
Constant *override_func = ConstantExpr::getCast(Instruction::IntToPtr,
getInt64(libbpf::BPF_FUNC_override_return),
override_func_ptr_type);
- CreateCall(override_func, { ctx, rc }, "override");
+ createCall(override_func, { ctx, rc }, "override");
}
Value *IRBuilderBPF::CreatKFuncArg(Value *ctx,
diff --git a/src/ast/irbuilderbpf.h b/src/ast/irbuilderbpf.h
index d4361a8..3111507 100644
--- a/src/ast/irbuilderbpf.h
+++ b/src/ast/irbuilderbpf.h
@@ -80,6 +80,7 @@ class IRBuilderBPF : public IRBuilder<>
CallInst *CreateGetRandom();
CallInst *CreateGetStackId(Value *ctx, bool ustack, StackType stack_type, const location& loc);
CallInst *CreateGetJoinMap(Value *ctx, const location& loc);
+ CallInst *createCall(Value *callee, ArrayRef<Value *> args, const Twine &Name);
void CreateGetCurrentComm(Value *ctx, AllocaInst *buf, size_t size, const location& loc);
void CreatePerfEventOutput(Value *ctx, Value *data, size_t size);
void CreateSignal(Value *ctx, Value *sig, const location &loc);
diff --git a/src/bpforc.h b/src/bpforc.h
index a42e031..295f703 100644
--- a/src/bpforc.h
+++ b/src/bpforc.h
@@ -96,9 +96,15 @@ class BpfOrc
: TM(TM_),
Resolver(createLegacyLookupResolver(
ES,
+#if LLVM_VERSION_MAJOR >= 11
+ [](llvm::StringRef Name __attribute__((unused))) -> JITSymbol {
+ return nullptr;
+ },
+#else
[](const std::string &Name __attribute__((unused))) -> JITSymbol {
return nullptr;
},
+#endif
[](Error Err) { cantFail(std::move(Err), "lookup failed"); })),
#if LLVM_VERSION_MAJOR > 8
ObjectLayer(AcknowledgeORCv1Deprecation,
--
2.25.4
Reference in New Issue View Git Blame Copy Permalink