perfetto: build libperfetto

- Mesa has support for perfetto, but the libperfetto library is needed
- Only v27 seems to be supported for now. Update perfetto accordingly
- Make sure perfetto and libperfetto share the same codebase
- Patch meson.build to allow shared build
  - Add a version number to avoid having a non symlink so file packaged into dev package
  - Create a PC file for libperfetto to allow mesa to find it using pkgconfig
  - Install needed header file
- Add -latomic to LDFLAGS for some arch where the compiler doesn't provide it

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/perfetto/files/0001-meson-add-pc-file-for-lib_perfetto.patch

@@ -0,0 +1,52 @@
+From 027f90dc9386ec08f2a5107025683e5fed6f3444 Mon Sep 17 00:00:00 2001
+From: Markus Volk <f_l_k@t-online.de>
+Date: Mon, 17 Oct 2022 19:20:53 +0200
+Subject: [PATCH] meson: add PC file for lib_perfetto
+
+---
+ meson.build | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index 06015141c..752b4d928 100644
+--- a/meson.build
++++ b/meson.build
+@@ -19,9 +19,12 @@
+ project(
+     'perfetto',
+     ['c','cpp'],
+-    default_options: ['c_std=c99', 'cpp_std=c++11']
++    default_options: ['c_std=c99', 'cpp_std=c++11'],
++    version: '27.1'
+ )
+ 
++soversion = meson.project_version()
++
+ fs = import('fs')
+ 
+ if not fs.is_dir('sdk')
+@@ -30,8 +33,9 @@ endif
+ 
+ dep_threads = dependency('threads')
+ 
+-lib_perfetto = static_library(
++lib_perfetto = shared_library(
+     'perfetto',
++    version: soversion,
+     sources: 'sdk/perfetto.cc',
+     dependencies: dep_threads,
+     install: true,
+@@ -39,6 +43,10 @@ lib_perfetto = static_library(
+ 
+ inc_perfetto = include_directories('sdk')
+ 
++install_headers('sdk/perfetto.h')
++pkg = import('pkgconfig')
++pkg.generate(lib_perfetto)
++
+ dep_perfetto = declare_dependency(
+     link_with: lib_perfetto,
+     include_directories: inc_perfetto,
+-- 
+2.34.1
+

meta-oe/recipes-devtools/perfetto/libperfetto.bb

@@ -0,0 +1,14 @@
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=f87516e0b698007e9e75a1fe1012b390"
+
+require perfetto.inc
+
+inherit meson
+
+SRC_URI:append = " file://0001-meson-add-pc-file-for-lib_perfetto.patch"
+
+LDFLAGS += "-Wl,--as-needed -latomic -Wl,--no-as-needed"
+
+FILES:${PN} += "${datadir}"
+
+BBCLASSEXTEND = "native nativesdk"

meta-oe/recipes-devtools/perfetto/perfetto.bb

@@ -10,7 +10,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=f87516e0b698007e9e75a1fe1012b390 \
                     file://debian/copyright;md5=4e08364c82141f181de69d0a2b89d612 \
                     file://python/LICENSE;md5=c602a632c34ade9c78a976734077bce7"
 
-SRC_URI = "git://github.com/google/perfetto.git;branch=master;protocol=https;name=perfetto \
+SRC_URI:append = " \
            git://github.com/protocolbuffers/protobuf.git;branch=3.9.x;protocol=https;destsuffix=git/buildtools/protobuf;name=protobuf \
            git://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git;protocol=https;destsuffix=git/buildtools/libcxx;branch=main;name=libcxx \
            git://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi.git;protocol=https;destsuffix=git/buildtools/libcxxabi;branch=main;name=libcxxabi \
@@ -19,7 +19,6 @@ SRC_URI = "git://github.com/google/perfetto.git;branch=master;protocol=https;nam
            https://storage.googleapis.com/perfetto/gn-linux64-1968-0725d782;subdir=git/buildtools/;name=gn \
            file://0001-Remove-check_build_deps-build-steps.patch "
 
-SRCREV_perfetto = "5bd3f582c075d0d026c5fe0b5e291d34dee0d976"
 SRCREV_protobuf = "6a59a2ad1f61d9696092f79b6d74368b4d7970a3"
 SRCREV_libcxx = "d9040c75cfea5928c804ab7c235fed06a63f743a"
 SRCREV_libcxxabi = "196ba1aaa8ac285d94f4ea8d9836390a45360533"
@@ -27,6 +26,8 @@ SRCREV_libunwind = "d999d54f4bca789543a2eb6c995af2d9b5a1f3ed"
 SRCREV_zlib = "5c85a2da4c13eda07f69d81a1579a5afddd35f59"
 SRC_URI[gn.sha256sum] = "f706aaa0676e3e22f5fc9ca482295d7caee8535d1869f99efa2358177b64f5cd"
 
+require perfetto.inc
+
 DEPENDS += " ninja-native"
 
 COMPATIBLE_HOST = "(i.86|x86_64|aarch64|arm).*-linux*"
@@ -35,7 +36,6 @@ FILES:${PN}:append = " \
   ${bindir}/tracebox \
   "
 
-S = "${WORKDIR}/git"
 B = "${WORKDIR}/build"
 
 # Run the GN (Generate Ninja) script, and replace the compiler flags where applicable

meta-oe/recipes-devtools/perfetto/perfetto.inc

@@ -0,0 +1,9 @@
+SUMMARY = "Perfetto - System profiling, app tracing and trace analysis."
+HOMEPAGE = "https://github.com/google/perfetto"
+
+SRC_URI = "git://github.com/google/perfetto.git;protocol=https;name=perfetto;nobranch=1"
+
+SRCREV_perfetto = "1c52b5e132312aeb007ed180d4ba1d8d66227923"
+PV = "27.1"
+
+S = "${WORKDIR}/git"