47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
commit 84732a8849a08d42a9a95dcbee9005116be78eb8
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Author: Khem Raj <raj.khem@gmail.com>
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Date: Sun Aug 7 14:39:19 2022 -0700
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check for sys/pidfd.h
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This header in newer glibc defines the signatures of functions
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pidfd_send_signal() and pidfd_open() and when these functions are
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defined by libc then we need to include the relevant header to get
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the definitions. Clang 15+ has started to error out when function
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signatures are missing.
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Fixes errors like
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misc-utils/kill.c:402:6: error: call to undeclared function 'pidfd_send_signal'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
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if (pidfd_send_signal(pfd, ctl->numsig, &info, 0) < 0)
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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diff --git a/configure.ac b/configure.ac
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index d8b4d475103c2bab..4a35d17f81375c29 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -339,6 +339,7 @@ AC_CHECK_HEADERS([ \
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sys/mkdev.h \
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sys/mount.h \
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sys/param.h \
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+ sys/pidfd.h \
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sys/prctl.h \
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sys/resource.h \
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sys/sendfile.h \
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diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h
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index eddede9767478be2..d9e33cbc57ae38c8 100644
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--- a/include/pidfd-utils.h
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+++ b/include/pidfd-utils.h
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@@ -4,8 +4,10 @@
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#ifdef HAVE_SYS_SYSCALL_H
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# include <sys/syscall.h>
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# if defined(SYS_pidfd_send_signal) && defined(SYS_pidfd_open)
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+# ifdef HAVE_SYS_PIDFD_H
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+# include <sys/pidfd.h>
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+# endif
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# include <sys/types.h>
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-
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# ifndef HAVE_PIDFD_SEND_SIGNAL
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static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
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unsigned int flags)
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