glibc-2.15 provides process_vm_readv, so trying to provide this ourselves
with that version fails:
util.c:797:16: error: static declaration of 'process_vm_readv'
follows non-static declaration
/usr/include/bits/uio.h:58:16: note: previous declaration of
'process_vm_readv' was here
Add a configure check for the func.
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
configure.ac | 1 +
util.c | 8 +++++++-
2 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/configure.ac b/configure.ac
index 789a997..55c7682 100644
--- a/configure.ac
+++ b/configure.ac
@@ -236,6 +236,7 @@ AC_CHECK_FUNCS([ \
sys_siglist \
_sys_siglist \
stpcpy \
+ process_vm_readv \
])
AC_CHECK_HEADERS([ \
inttypes.h \
diff --git a/util.c b/util.c
index b6cdf9a..bd166d2 100644
--- a/util.c
+++ b/util.c
@@ -776,6 +776,11 @@ dumpstr(struct tcb *tcp, long addr, int len)
}
+#ifdef HAVE_PROCESS_VM_READV
+/* C library supports this, but the kernel might not. */
+static bool process_vm_readv_not_supported = 0;
+#else
+
/* Need to do this since process_vm_readv() is not yet available in libc.
* When libc is be updated, only "static bool process_vm_readv_not_supported"
* line should remain.
@@ -805,7 +810,8 @@ static ssize_t process_vm_readv(pid_t pid,
static bool process_vm_readv_not_supported = 1;
# define process_vm_readv(...) (errno = ENOSYS, -1)
#endif
-/* end of hack */
+
+#endif /* end of hack */
#define PAGMASK (~(PAGSIZ - 1))
--
1.7.8.4
------------------------------------------------------------------------------
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