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commit 83071bc877b462eacca309fa49c9e8112fc16bdf
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Author: Jafeer Uddin <juddin@redhat.com>
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Date: Thu May 9 16:18:46 2019 -0400
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PR23074: fix guru mode issue with generated calls to register get/set
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diff --git a/elaborate.cxx b/elaborate.cxx
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index 9ebf30b..fcd1d1d 100644
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--- a/elaborate.cxx
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+++ b/elaborate.cxx
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@@ -3073,7 +3073,7 @@ public:
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}
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// Don't allow /* guru */ functions unless caller is privileged.
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- if (!call->tok->location.file->privileged &&
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+ if (!call->synthetic && !call->tok->location.file->privileged &&
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s->tagged_p ("/* guru */"))
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throw SEMANTIC_ERROR (_("function may not be used unless -g is specified"),
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call->tok);
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diff --git a/loc2stap.cxx b/loc2stap.cxx
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index c1a48d0..d4fd051 100644
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--- a/loc2stap.cxx
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+++ b/loc2stap.cxx
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@@ -1745,6 +1745,7 @@ location_context::handle_GNU_parameter_ref (Dwarf_Op expr)
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// it and we want to be able to restore the registers back.
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functioncall *get_ptregs = new functioncall;
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get_ptregs->tok = e->tok;
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+ get_ptregs->synthetic = true;
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if (this->userspace_p)
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get_ptregs->function = std::string("__get_uregs");
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else
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@@ -1870,6 +1871,7 @@ location_context::handle_GNU_parameter_ref (Dwarf_Op expr)
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// Translation done, restore the pt_regs to its original value
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functioncall *set_ptregs = new functioncall;
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set_ptregs->tok = e->tok;
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+ set_ptregs->synthetic = true;
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if (this->userspace_p)
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set_ptregs->function = std::string("__set_uregs");
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else
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diff --git a/staptree.h b/staptree.h
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index d63156f..2735808 100644
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--- a/staptree.h
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+++ b/staptree.h
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@@ -464,6 +464,7 @@ struct functioncall: public expression
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interned_string function;
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std::vector<expression*> args;
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std::vector<functiondecl*> referents;
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+ bool synthetic;
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functioncall ();
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void print (std::ostream& o) const;
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void visit (visitor* u);
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