libfastjson: add missing runtime dependency on libm#29161
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hnyman merged 1 commit intoopenwrt:masterfrom May 2, 2026
Merged
libfastjson: add missing runtime dependency on libm#29161hnyman merged 1 commit intoopenwrt:masterfrom
hnyman merged 1 commit intoopenwrt:masterfrom
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Should be conditional for glibc. musl conains math and pth in one lib. |
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+USE_GLIBC:libm |
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ok thanks for the info, I've fixed it. |
libfastjson uses modf() from libm but does not declare the dependency. With BIND_NOW (CONFIG_PKG_RELRO_FULL), this can cause the dynamic linker to process libfastjson's relocations before libm's GOT is set up, triggering a crash in libm's IFUNC resolver on PowerPC. Fixes: openwrt#29160 Signed-off-by: micpf <micpf@westermo.com>
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libfastjson uses
modf()from libm but does not declare the dependency in its package definition. WithCONFIG_PKG_RELRO_FULL(BIND_NOW), this can cause the dynamic linker to process libfastjson's relocations before libm's GOT is set up, triggering a crash in libm's IFUNC resolver on PowerPC.Observed on PowerPC64 BE (e5500) with glibc 2.41, where rsyslogd crashes immediately on startup.
Fixes: #29160