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If the Java sources are compiled with -g:none to disable debug information the perf JVMTI plugin reports a lot of errors like: java: GetLineNumberTable failed with JVMTI_ERROR_ABSENT_INFORMATION java: GetLineNumberTable failed with JVMTI_ERROR_ABSENT_INFORMATION java: GetLineNumberTable failed with JVMTI_ERROR_ABSENT_INFORMATION java: GetLineNumberTable failed with JVMTI_ERROR_ABSENT_INFORMATION java: GetLineNumberTable failed with JVMTI_ERROR_ABSENT_INFORMATION Instead if GetLineNumberTable returns JVMTI_ERROR_ABSENT_INFORMATION simply skip emitting line number information for that method. Unlike the previous patch these errors don't affect the jitdump generation, they just generate a lot of noise. Similarly for native methods which also don't have line tables. Signed-off-by: Nick Gasson <nick.gasson@arm.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200427061520.24905-3-nick.gasson@arm.com [ Moved || operator to the end of the line, not at the start of 2nd if condition ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Build | ||
jvmti_agent.c | ||
jvmti_agent.h | ||
libjvmti.c |