pjproject: Fix race condition when building with parallel make

Pjproject makefiles miss some dependencies which can cause race
conditions when building with parallel make processes. This patch
adds such dependencies correctly.

ASTERISK-28879 #close
Reported-by: Dmitry Wagin <dmitry.wagin@ya.ru>
Change-Id: Ie1b0dc365dafe4a84c5248097fe8d73804043c22

diff --git a/third-party/pjproject/patches/0050-fix-race-parallel-build.patch b/third-party/pjproject/patches/0050-fix-race-parallel-build.patch
new file mode 100644 (file)
index 0000000..674baa2
--- /dev/null
+++ b/third-party/pjproject/patches/0050-fix-race-parallel-build.patch
@@ -0,0 +1,72 @@
+From 78683646c8bc670ec730a42494e075f671a08e28 Mon Sep 17 00:00:00 2001
+From: Guido Falsi <mad@madpilot.net>
+Date: Mon, 11 May 2020 08:50:39 +0200
+Subject: [PATCH] Fix race condition in parallel builds (#2426)
+
+* Some targets residing in `OBJDIRS` are missing a dependency on that directory, which results in a race condition, causing build to fail sometimes due to the directory not existing when running parallel builds.
+
+* The `PJSUA_LIB` variable is not defined anywhere, resulting in an empty value, and no correct dependency on the pjsua shared library for `pjsua2`. The correct variable seems to be `PJSUA_LIB_LIB`, defined at the start of this same `Makefile`.
+---
+ build/rules.mak      | 12 ++++++------
+ pjsip/build/Makefile |  2 +-
+ 2 files changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/build/rules.mak b/build/rules.mak
+index 8fa98655e..912199c41 100644
+--- a/build/rules.mak
++++ b/build/rules.mak
+@@ -129,7 +129,7 @@ endif
+ $(OBJDIR)/$(app).o: $(OBJDIRS) $(OBJS)
+       $(CROSS_COMPILE)ld -r -o $@ $(OBJS)
+ 
+-$(OBJDIR)/$(app).ko: $(OBJDIR)/$(app).o
++$(OBJDIR)/$(app).ko: $(OBJDIR)/$(app).o | $(OBJDIRS)
+       @echo Creating kbuild Makefile...
+       @echo "# Our module name:" > $(OBJDIR)/Makefile
+       @echo 'obj-m += $(app).o' >> $(OBJDIR)/Makefile
+@@ -154,27 +154,27 @@ $(OBJDIR)/$(app).ko: $(OBJDIR)/$(app).o
+ ../lib/$(app).ko: $(LIB) $(OBJDIR)/$(app).ko
+       cp $(OBJDIR)/$(app).ko ../lib
+ 
+-$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.m
++$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.m | $(OBJDIRS)
+       $(CC) $($(APP)_CFLAGS) \
+               $(CC_OUT)$(subst /,$(HOST_PSEP),$@) \
+               $(subst /,$(HOST_PSEP),$<) 
+ 
+-$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.c
++$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.c | $(OBJDIRS)
+       $(CC) $($(APP)_CFLAGS) \
+               $(CC_OUT)$(subst /,$(HOST_PSEP),$@) \
+               $(subst /,$(HOST_PSEP),$<) 
+ 
+-$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.S
++$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.S | $(OBJDIRS)
+       $(CC) $($(APP)_CFLAGS) \
+               $(CC_OUT)$(subst /,$(HOST_PSEP),$@) \
+               $(subst /,$(HOST_PSEP),$<) 
+ 
+-$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.cpp
++$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.cpp | $(OBJDIRS)
+       $(CXX) $($(APP)_CXXFLAGS) \
+               $(CC_OUT)$(subst /,$(HOST_PSEP),$@) \
+               $(subst /,$(HOST_PSEP),$<)
+ 
+-$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.cc
++$(OBJDIR)/%$(OBJEXT): $(SRCDIR)/%.cc | $(OBJDIRS)
+       $(CXX) $($(APP)_CXXFLAGS) \
+               $(CC_OUT)$(subst /,$(HOST_PSEP),$@) \
+               $(subst /,$(HOST_PSEP),$<)
+diff --git a/pjsip/build/Makefile b/pjsip/build/Makefile
+index b85c7817a..20777909f 100644
+--- a/pjsip/build/Makefile
++++ b/pjsip/build/Makefile
+@@ -262,7 +262,7 @@ $(PJSUA_LIB_LIB) $(PJSUA_LIB_SONAME): $(PJSIP_LIB) $(PJSIP_SONAME) $(PJSIP_SIMPL
+ 
+ pjsua2-lib: $(PJSUA2_LIB_LIB)
+ $(PJSUA2_LIB_SONAME): $(PJSUA2_LIB_LIB)
+-$(PJSUA2_LIB_LIB) $(PJSUA2_LIB_SONAME): $(PJSUA_LIB) $(PSJUA_LIB_SONAME) $(PJSIP_LIB) $(PJSIP_SONAME) $(PJSIP_SIMPLE_LIB) $(PJSIP_SIMPLE_SONAME) $(PJSIP_UA_LIB) $(PJSIP_UA_SONAME)
++$(PJSUA2_LIB_LIB) $(PJSUA2_LIB_SONAME): $(PJSUA_LIB_LIB) $(PJSUA_LIB_SONAME) $(PJSIP_LIB) $(PJSIP_SONAME) $(PJSIP_SIMPLE_LIB) $(PJSIP_SIMPLE_SONAME) $(PJSIP_UA_LIB) $(PJSIP_UA_SONAME)
+       $(MAKE) -f $(RULES_MAK) APP=PJSUA2_LIB app=pjsua2-lib $(subst /,$(HOST_PSEP),$(LIBDIR)/$@)
+ 
+ pjsip-test: $(TEST_EXE)