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kumquat-buildroot/package/grpc/0004-host-grpc-only-cpp-plugin.patch

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package/grpc: restrict host-grpc to the absolute minimum Currently, grpc depends on the full host-grpc, which in turn depends on host versions of many other libraries. One of these, host-libabseil-cpp, also requires a host gcc 4.9 or larger, a dependency which is not met on CentOS 7. But in fact, the target grpc only needs the 'grpc_cpp_plugin' binary from host-grpc. And that binary does not depend on host-libabseil-cpp or other libraries, only on host-protobuf. Given the above, simplify the grpc/host-grpc situation. - Add a patch to the (host-)grpc CMakeLists.txt file to add an option to only build grpc_cpp_plugin. - Update grpc.mk and Config.in to remove the unnecessary dependencies, and change the host-grpc configure options to make cmake happy. The advantages of these changes are: - making grpc available to older hosts with gcc < 4.8, like CentOS 7 - significantly reducing the build time of host-grpc and its dependencies The patch was proposed upstream but not accepted with below rationale. Perhaps input from others can help in persuading upstream in a future attempt. 'What you're doing sounds like quite a narrow use case. But we simply cannot provide a cmake option for every possible scenario in the world. Introducing a new cmake option isn't for free and requires careful design and maintenance.' Nevertheless, given the benefits in terms of build time and dependency reduction, it makes sense to apply this patch in spite of the disadvantage of a local non-upstreamed patch. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com> [Arnout: propagate removed dependency to collectd] Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2021-05-25 20:20:44 +02:00
From a1922eadfc87da3dd221ff631f94ddd4a8ee7049 Mon Sep 17 00:00:00 2001
From: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Date: Tue, 25 May 2021 14:55:23 +0200
Subject: [PATCH] Add option to restrict building of (host-)grpc to
grpc_cpp_plugin only.
This avoids unnecessary dependencies on big packages like libabseil-cpp and
others.
Upstream-status: not accepted (see https://github.com/grpc/grpc/issues/25322)
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
---
CMakeLists.txt | 43 +++++++++++++++++++++++++++++++++++--------
1 file changed, 35 insertions(+), 8 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e8934a3e03..c2df332cc6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,12 +48,16 @@ option(gRPC_BUILD_TESTS "Build tests" OFF)
option(gRPC_BUILD_CODEGEN "Build codegen" ON)
option(gRPC_BUILD_CSHARP_EXT "Build C# extensions" ON)
option(gRPC_BACKWARDS_COMPATIBILITY_MODE "Build libraries that are binary compatible across a larger number of OS and libc versions" OFF)
+option(gRPC_BUILD_PLUGIN_SUPPORT_ONLY "Build plugin support only" OFF)
set(gRPC_INSTALL_default ON)
if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
# Disable gRPC_INSTALL by default if building as a submodule
set(gRPC_INSTALL_default OFF)
endif()
+if(gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+ set(gRPC_INSTALL_default OFF)
+endif()
set(gRPC_INSTALL ${gRPC_INSTALL_default} CACHE BOOL
"Generate installation target")
@@ -367,6 +371,8 @@ add_custom_target(plugins
DEPENDS ${_gRPC_PLUGIN_LIST}
)
+if (NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_custom_target(tools_c
DEPENDS
check_epollexclusive
@@ -382,6 +388,8 @@ add_custom_target(tools_cxx
add_custom_target(tools
DEPENDS tools_c tools_cxx)
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
+
protobuf_generate_grpc_cpp(
src/proto/grpc/channelz/channelz.proto
)
@@ -1000,6 +1008,7 @@ if(gRPC_BUILD_TESTS)
DEPENDS buildtests_c buildtests_cxx)
endif()
+if (NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
add_library(address_sorting
third_party/address_sorting/address_sorting.c
@@ -1051,6 +1060,8 @@ if(gRPC_INSTALL)
)
endif()
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
+
if(gRPC_BUILD_TESTS)
add_library(end2end_nosec_tests
@@ -1313,6 +1324,8 @@ target_link_libraries(end2end_tests
endif()
+if(NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_library(gpr
src/core/lib/gpr/alloc.cc
src/core/lib/gpr/atm.cc
@@ -2106,6 +2119,8 @@ if(gRPC_INSTALL)
)
endif()
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
+
if(gRPC_BUILD_CSHARP_EXT)
add_library(grpc_csharp_ext SHARED
@@ -2288,6 +2303,8 @@ endif()
endif()
+if(NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_library(grpc_unsecure
src/core/ext/filters/census/grpc_context.cc
src/core/ext/filters/client_channel/backend_metric.cc
@@ -2650,6 +2667,8 @@ if(gRPC_INSTALL)
)
endif()
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
+
if(gRPC_BUILD_TESTS)
if(gRPC_BUILD_CODEGEN)
@@ -2717,6 +2736,8 @@ endif()
endif()
+if(NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_library(grpc++
src/cpp/client/channel_cc.cc
src/cpp/client/client_callback.cc
@@ -3134,6 +3155,7 @@ if(gRPC_INSTALL)
)
endif()
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
if(gRPC_BUILD_CODEGEN)
add_library(grpc++_reflection
@@ -3374,6 +3396,8 @@ target_link_libraries(grpc++_test_util
endif()
+if(NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_library(grpc++_unsecure
src/cpp/client/channel_cc.cc
src/cpp/client/client_callback.cc
@@ -3656,6 +3680,7 @@ if(gRPC_INSTALL)
)
endif()
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
add_library(grpc_plugin_support
src/compiler/cpp_generator.cc
@@ -3715,7 +3740,7 @@ foreach(_hdr
endforeach()
-if(gRPC_INSTALL)
+if(gRPC_INSTALL OR gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
install(TARGETS grpc_plugin_support EXPORT gRPCTargets
RUNTIME DESTINATION ${gRPC_INSTALL_BINDIR}
LIBRARY DESTINATION ${gRPC_INSTALL_LIBDIR}
@@ -3795,6 +3820,8 @@ endif()
endif()
+if(NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
+
add_library(upb
third_party/upb/upb/decode_fast.c
third_party/upb/upb/decode.c
@@ -3852,8 +3879,6 @@ if(gRPC_INSTALL)
)
endif()
-
-
add_executable(check_epollexclusive
test/build/check_epollexclusive.c
)
@@ -3906,8 +3931,6 @@ target_link_libraries(gen_hpack_tables
gpr
)
-
-
add_executable(gen_legal_metadata_characters
tools/codegen/core/gen_legal_metadata_characters.cc
)
@@ -3958,6 +3981,8 @@ target_link_libraries(gen_percent_encoding_tables
${_gRPC_ALLTARGETS_LIBRARIES}
)
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
+
if(gRPC_BUILD_TESTS)
@@ -10722,7 +10747,7 @@ target_link_libraries(grpc_cli
endif()
-if(gRPC_BUILD_CODEGEN AND gRPC_BUILD_GRPC_CPP_PLUGIN)
+if(gRPC_BUILD_GRPC_CPP_PLUGIN)
add_executable(grpc_cpp_plugin
src/compiler/cpp_plugin.cc
@@ -10752,7 +10777,7 @@ target_link_libraries(grpc_cpp_plugin
-if(gRPC_INSTALL)
+if(gRPC_INSTALL OR gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
install(TARGETS grpc_cpp_plugin EXPORT gRPCTargets
RUNTIME DESTINATION ${gRPC_INSTALL_BINDIR}
LIBRARY DESTINATION ${gRPC_INSTALL_LIBDIR}
@@ -15420,7 +15445,7 @@ endif()
-
+if (NOT gRPC_BUILD_PLUGIN_SUPPORT_ONLY)
if(gRPC_INSTALL)
install(EXPORT gRPCTargets
@@ -15517,3 +15542,5 @@ generate_pkgconfig(
"-lgrpc++_unsecure -labsl_statusor -labsl_status -labsl_raw_hash_set -labsl_hashtablez_sampler -labsl_synchronization -labsl_time -labsl_time_zone -labsl_civil_time -labsl_graphcycles_internal -labsl_symbolize -labsl_demangle_internal -labsl_malloc_internal -labsl_stacktrace -labsl_debugging_internal -labsl_exponential_biased -labsl_cord -labsl_str_format_internal -labsl_hash -labsl_bad_variant_access -labsl_bad_optional_access -labsl_strings -labsl_strings_internal -labsl_base -labsl_spinlock_wait -labsl_int128 -labsl_city -labsl_throw_delegate -labsl_raw_logging_internal -labsl_log_severity"
""
"grpc++_unsecure.pc")
+
+endif() # gRPC_BUILD_PLUGIN_SUPPORT_ONLY
--
2.26.3
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