fix: #1690 unable to identify shebang when it has initial spaces #1696
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namhyung
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May 10, 2023
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namhyung
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Can you please squash the commits into one and rewrite the commit message like this?
record: skip whitespaces after shebang for scripts
Python tracing won't work when the shebang line has a space like below:
#! /usr/bin/python3
Fixed: #1690
Signed-off-by: ...
cmds/record.c
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| #include <sys/wait.h> | ||
| #include <unistd.h> | ||
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| #include "libtraceevent/event-utils.h" |
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I don't want to include libtraceevent headers just because of this. Maybe we can implement strim() instead.
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will do this tonight
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of course |
gcc -std=gnu11 -D_GNU_SOURCE -iquote /localdisk/uftrace -iquote /localdisk/uftrace \
-iquote /localdisk/uftrace/arch/x86_64 -Wdeclaration-after-statement -W -Wall \
-Wno-unused-parameter -Wno-missing-field-initializers -O0 -g3 -DDEBUG_MODE=1 \
-DHAVE_CXA_DEMANGLE -DHAVE_LIBPYTHON3 -I/usr/include/python3.6m \
-DLIBPYTHON_VERSION=3.6 -DHAVE_PERF_CLOCKID -DHAVE_PERF_CTXSW -DHAVE_LIBNCURSES \
-DHAVE_LIBELF -DHAVE_LIBDW -DHAVE_LIBUNWIND -DHAVE_LIBCAPSTONE -I/usr/include/capstone \
-fPIC -c -o /localdisk/uftrace/python/trace-python.op /localdisk/uftrace/python/trace-python.c
/localdisk/uftrace/python/trace-python.c: In function ‘get_python_funcname’:
/localdisk/uftrace/python/trace-python.c:760:7: warning: ‘main’ is usually a function [-Wmain]
bool main = false;
^
Reported-by: Clément Guidi <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
It should return NULL if it fails to get the symbol address. And it needs to check the return value before using symbol. Signed-off-by: Namhyung Kim <[email protected]>
C functions get the code object from the argument not from the frame. Also it overwrote the code after getting the reference. Signed-off-by: Namhyung Kim <[email protected]>
It keeps the code objects to find a matching symbol for the given function. Let's handle them properly for GC to check references. Likewise, it should clear the reference in the tp_clear callback. Signed-off-by: Namhyung Kim <[email protected]>
Python tracing won't work when the shebang line has a space like below:
#! /usr/bin/python3
Fixed: #1690
Signed-off-by: yihong0618 <[email protected]>
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Next time, you can reuse this PR instead of creating a new one. You don't need to create a new PR whenever you update the code. Just force-push is fine. |
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copy that, thanks |
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fix: #1690
Signed-off-by: yihong0618 [email protected]