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-rw-r--r--meta-oe/recipes-connectivity/wvdial/wvstreams/0002-wvtask-Dont-use-ucontext-on-non-glibc-systems.patch135
1 files changed, 135 insertions, 0 deletions
diff --git a/meta-oe/recipes-connectivity/wvdial/wvstreams/0002-wvtask-Dont-use-ucontext-on-non-glibc-systems.patch b/meta-oe/recipes-connectivity/wvdial/wvstreams/0002-wvtask-Dont-use-ucontext-on-non-glibc-systems.patch
new file mode 100644
index 000000000..232db9e63
--- /dev/null
+++ b/meta-oe/recipes-connectivity/wvdial/wvstreams/0002-wvtask-Dont-use-ucontext-on-non-glibc-systems.patch
@@ -0,0 +1,135 @@
+From 0e054339c1422168a7f4a9dcf090268053a33b1f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 20 Jul 2017 21:05:37 -0700
+Subject: [PATCH 2/5] wvtask: Dont use ucontext on non-glibc systems
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ utils/wvtask.cc | 24 ++++++++++++++++++++++++
+ 1 file changed, 24 insertions(+)
+
+diff --git a/utils/wvtask.cc b/utils/wvtask.cc
+index cdcd544..c0bff7d 100644
+--- a/utils/wvtask.cc
++++ b/utils/wvtask.cc
+@@ -199,7 +199,9 @@ WvTaskMan::WvTaskMan()
+ stacktop = (char *)alloca(0);
+
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&get_stack_return) == 0);
++#endif
+ if (context_return == 0)
+ {
+ // initial setup - start the stackmaster() task (never returns!)
+@@ -265,13 +267,17 @@ int WvTaskMan::run(WvTask &task, int val)
+ state = &old_task->mystate;
+
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(state) == 0);
++#endif
+ int newval = context_return;
+ if (newval == 0)
+ {
+ // saved the state, now run the task.
+ context_return = val;
++#ifdef __GLIBC__
+ setcontext(&task.mystate);
++#endif
+ return -1;
+ }
+ else
+@@ -319,13 +325,17 @@ int WvTaskMan::yield(int val)
+ #endif
+
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&current_task->mystate) == 0);
++#endif
+ int newval = context_return;
+ if (newval == 0)
+ {
+ // saved the task state; now yield to the toplevel.
+ context_return = val;
++#ifdef __GLIBC__
+ setcontext(&toplevel);
++#endif
+ return -1;
+ }
+ else
+@@ -341,7 +351,9 @@ int WvTaskMan::yield(int val)
+ void WvTaskMan::get_stack(WvTask &task, size_t size)
+ {
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&get_stack_return) == 0);
++#endif
+ if (context_return == 0)
+ {
+ assert(magic_number == -WVTASK_MAGIC);
+@@ -371,7 +383,9 @@ void WvTaskMan::get_stack(WvTask &task, size_t size)
+ // initial setup
+ stack_target = &task;
+ context_return = size/1024 + (size%1024 > 0);
++#ifdef __GLIBC__
+ setcontext(&stackmaster_task);
++#endif
+ }
+ else
+ {
+@@ -409,7 +423,9 @@ void WvTaskMan::_stackmaster()
+ assert(magic_number == -WVTASK_MAGIC);
+
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&stackmaster_task) == 0);
++#endif
+ val = context_return;
+ if (val == 0)
+ {
+@@ -419,7 +435,9 @@ void WvTaskMan::_stackmaster()
+ // all current stack allocations) and go back to get_stack
+ // (or the constructor, if that's what called us)
+ context_return = 1;
++#ifdef __GLIBC__
+ setcontext(&get_stack_return);
++#endif
+ }
+ else
+ {
+@@ -474,7 +492,9 @@ void WvTaskMan::do_task()
+
+ // back here from longjmp; someone wants stack space.
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&task->mystate) == 0);
++#endif
+ if (context_return == 0)
+ {
+ // done the setjmp; that means the target task now has
+@@ -510,7 +530,9 @@ void WvTaskMan::do_task()
+ }
+ else
+ {
++#ifdef __GLIBC__
+ assert(getcontext(&task->func_call) == 0);
++#endif
+ task->func_call.uc_stack.ss_size = task->stacksize;
+ task->func_call.uc_stack.ss_sp = task->stack;
+ task->func_call.uc_stack.ss_flags = 0;
+@@ -521,9 +543,11 @@ void WvTaskMan::do_task()
+ (void (*)(void))call_func, 1, task);
+
+ context_return = 0;
++#ifdef __GLIBC__
+ assert(getcontext(&task->func_return) == 0);
+ if (context_return == 0)
+ setcontext(&task->func_call);
++#endif
+ }
+
+ // the task's function terminated.
+--
+2.13.3
+