diff options
Diffstat (limited to 'tapsets.cxx')
| -rw-r--r-- | tapsets.cxx | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tapsets.cxx b/tapsets.cxx index b1ca2998..66cb2383 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -3030,6 +3030,8 @@ dwarf_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it wouldn't have been replaced // by a breakpoint instruction when calling real probe handler. Reset // IP regs on return, so we don't confuse kprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long kprobes_ip = REG_IP(c->regs);"; @@ -3037,6 +3039,9 @@ dwarf_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sdp->ph) (c);"; s.op->newline() << "REG_IP(regs) = kprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline() << "return 0;"; @@ -3064,6 +3069,8 @@ dwarf_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it wouldn't have been replaced // by a breakpoint instruction when calling real probe handler. Reset // IP regs on return, so we don't confuse kprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long kprobes_ip = REG_IP(c->regs);"; @@ -3071,6 +3078,9 @@ dwarf_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sdp->ph) (c);"; s.op->newline() << "REG_IP(regs) = kprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline() << "return 0;"; @@ -4447,6 +4457,8 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it would in the actual user // task when calling real probe handler. Reset IP regs on return, so // we don't confuse uprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long uprobes_ip = REG_IP(c->regs);"; @@ -4454,6 +4466,9 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sups->ph) (c);"; s.op->newline() << "REG_IP(regs) = uprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline(-1) << "}"; @@ -4470,6 +4485,8 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it would in the actual user // task when calling real probe handler. Reset IP regs on return, so // we don't confuse uprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long uprobes_ip = REG_IP(c->regs);"; @@ -4477,6 +4494,9 @@ uprobe_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sups->ph) (c);"; s.op->newline() << "REG_IP(regs) = uprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline(-1) << "}"; @@ -4970,6 +4990,8 @@ kprobe_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it wouldn't have been replaced // by a breakpoint instruction when calling real probe handler. Reset // IP regs on return, so we don't confuse kprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long kprobes_ip = REG_IP(c->regs);"; @@ -4977,6 +4999,9 @@ kprobe_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sdp->ph) (c);"; s.op->newline() << "REG_IP(regs) = kprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline() << "return 0;"; @@ -5004,6 +5029,8 @@ kprobe_derived_probe_group::emit_module_decls (systemtap_session& s) // Make it look like the IP is set as it wouldn't have been replaced // by a breakpoint instruction when calling real probe handler. Reset // IP regs on return, so we don't confuse kprobes. PR10458 + // But only for architectures where REG_IP is a proper lvalue. PR10491 + s.op->newline() << "#ifdef REG_IP_LVALUE"; s.op->newline() << "{"; s.op->indent(1); s.op->newline() << "unsigned long kprobes_ip = REG_IP(c->regs);"; @@ -5011,6 +5038,9 @@ kprobe_derived_probe_group::emit_module_decls (systemtap_session& s) s.op->newline() << "(*sdp->ph) (c);"; s.op->newline() << "REG_IP(regs) = kprobes_ip;"; s.op->newline(-1) << "}"; + s.op->newline() << "#else"; + s.op->newline() << "(*sdp->ph) (c);"; + s.op->newline() << "#endif"; common_probe_entryfn_epilogue (s.op); s.op->newline() << "return 0;"; |