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btrace: Add support for IRET events.

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This is similar to the previous events that we added.

Approved-By: Markus Metzger <markus.t.metzger@intel.com>
This commit is contained in:
Felix Willgerodt 2023-06-27 11:18:21 +02:00
parent cdd65168f3
commit dc08e970bb
3 changed files with 19 additions and 1 deletions
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14
gdb/btrace.c
View File

@ -1428,6 +1428,20 @@ handle_pt_insn_events (struct btrace_thread_info *btinfo,
handle_pt_aux_insn (btinfo, aux_string, pc);
break;
}
case ptev_iret:
{
std::string aux_string = std::string (_("iret"));
if (event.ip_suppressed == 0)
{
pc = event.variant.iret.ip;
aux_string += std::string (": ip = ") + hex_string (*pc);
}
handle_pt_aux_insn (btinfo, aux_string, pc);
break;
}
#endif /* defined (LIBIPT_VERSION >= 0x201) */
}
}

3
gdb/testsuite/gdb.btrace/event-tracing-gap.exp
View File

@ -61,12 +61,15 @@ gdb_continue_to_breakpoint "break at bp_2" ".*$srcfile:$bp_2.*"
# gdb_test_sequence and check only for events that we can control.
gdb_test_sequence "record function-call-history" "function-call-history" {
"\[0-9\]+\tmain"
"\\\[iret(: ip = $hex)?\\\]"
"\[0-9\]+\t\\\[non-contiguous\\\]"
"\[0-9\]+\tsquare"
"\\\[interrupt: vector = 0x3 \\\(#bp\\\)(, ip = 0x\[0-9a-fA-F\]+)?\\\]"
"\\\[iret(: ip = $hex)?\\\]"
"\[0-9\]+\t\\\[non-contiguous\\\]"
"\[0-9\]+\tmain"
"\[0-9\]+\tsquare"
"\\\[interrupt: vector = 0x3 \\\(#bp\\\)(, ip = 0x\[0-9a-fA-F\]+)?\\\]"
"\\\[iret(: ip = $hex)?\\\]"
"\[0-9\]+\tmain"
}

3
gdb/testsuite/gdb.btrace/event-tracing.exp
View File

@ -34,10 +34,11 @@ gdb_test_no_output "record btrace pt"
gdb_test "continue" "Program received signal SIGSEGV, Segmentation fault.*"
# Test printing of at least one INTERRUPT event.
# Test printing of at least one INTERRUPT and one IRET event.
# This uses test_sequence to avoid random events failing the tests.
gdb_test_sequence "record function-call-history" "function-call-history" {
"\[0-9\]+\tmain"
"\t \\\[iret(: ip = $hex)?\\\]"
"\t \\\[interrupt: vector = 0xe \\\(#pf\\\)(, cr2 = 0x0)?(, ip = 0x\[0-9a-fA-F\]+)?\\\]"
}