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8c8ed03850
Build of QEMU with dtrace fails on macOS:
LINK x86_64-softmmu/qemu-system-x86_64
error: probe colo_compare_miscompare doesn't exist
error: Could not register probes
ld: error creating dtrace DOF section for architecture x86_64
The reason of the error is explained by Adam Leventhal [1]:
Note that is-enabled probes don't have the stability magic so I'm not
sure how things would work if only is-enabled probes were used.
net/colo code uses is-enabled probes to determine if other probes should
be used but colo_compare_miscompare itself is not used explicitly.
Linker doesn't include the symbol and build fails.
The issue can be resolved if is-enabled probe matches the actual trace
point that is used inside the test. Packet dump toggle is replaced with
a compile-time conditional definition.
1. http://markmail.org/message/6grq2ygr5nwdwsnb
Fixes: f4b618360e ("colo-compare: add TCP, UDP, ICMP packet comparison")
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Cameron Esfahani <dirty@apple.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Message-id: 20200717093517.73397-5-r.bolshakov@yadro.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
25 lines
1.3 KiB
Plaintext
25 lines
1.3 KiB
Plaintext
# See docs/devel/tracing.txt for syntax documentation.
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# announce.c
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qemu_announce_self_iter(const char *id, const char *name, const char *mac, int skip) "%s:%s:%s skip: %d"
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qemu_announce_timer_del(bool free_named, bool free_timer, char *id) "free named: %d free timer: %d id: %s"
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# vhost-user.c
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vhost_user_event(const char *chr, int event) "chr: %s got event: %d"
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# colo.c
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colo_proxy_main(const char *chr) ": %s"
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# colo-compare.c
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colo_compare_main(const char *chr) ": %s"
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colo_compare_drop_packet(const char *queue, const char *chr) ": %s: %s"
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colo_compare_udp_miscompare(const char *sta, int size) ": %s = %d"
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colo_compare_icmp_miscompare(const char *sta, int size) ": %s = %d"
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colo_compare_ip_info(int psize, const char *sta, const char *stb, int ssize, const char *stc, const char *std) "ppkt size = %d, ip_src = %s, ip_dst = %s, spkt size = %d, ip_src = %s, ip_dst = %s"
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colo_old_packet_check_found(int64_t old_time) "%" PRId64
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colo_compare_tcp_info(const char *pkt, uint32_t seq, uint32_t ack, int hdlen, int pdlen, int offset, int flags) "%s: seq/ack= %u/%u hdlen= %d pdlen= %d offset= %d flags=%d"
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# filter-rewriter.c
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colo_filter_rewriter_pkt_info(const char *func, const char *src, const char *dst, uint32_t seq, uint32_t ack, uint32_t flag) "%s: src/dst: %s/%s p: seq/ack=%u/%u flags=0x%x"
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colo_filter_rewriter_conn_offset(uint32_t offset) ": offset=%u"
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