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sys_linux: fix building with older kernel headers

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Programming pins for external PHC timestamping was added in Linux 3.15,
but the PHC subsystem is older than that. Compile the programming code
only when the ioctl is defined.
This commit is contained in:
Miroslav Lichvar
2017-08-15 13:39:39 +02:00
parent a83f0d3cdc
commit 3d08815efb
1 changed files with 10 additions and 2 deletions
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12
sys_linux.c
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@@ -517,7 +517,10 @@ SYS_Linux_EnableSystemCallFilter(int level)
const static unsigned long ioctls[] = {
FIONREAD, TCGETS,
#if defined(FEAT_PHC) || defined(HAVE_LINUX_TIMESTAMPING)
PTP_EXTTS_REQUEST, PTP_PIN_SETFUNC, PTP_SYS_OFFSET,
PTP_EXTTS_REQUEST, PTP_SYS_OFFSET,
#ifdef PTP_PIN_SETFUNC
PTP_PIN_SETFUNC,
#endif
#ifdef PTP_SYS_OFFSET_PRECISE
PTP_SYS_OFFSET_PRECISE,
#endif
@@ -822,8 +825,9 @@ int
SYS_Linux_SetPHCExtTimestamping(int fd, int pin, int channel,
int rising, int falling, int enable)
{
struct ptp_pin_desc pin_desc;
struct ptp_extts_request extts_req;
#ifdef PTP_PIN_SETFUNC
struct ptp_pin_desc pin_desc;
memset(&pin_desc, 0, sizeof (pin_desc));
pin_desc.index = pin;
@@ -834,6 +838,10 @@ SYS_Linux_SetPHCExtTimestamping(int fd, int pin, int channel,
DEBUG_LOG("ioctl(%s) failed : %s", "PTP_PIN_SETFUNC", strerror(errno));
return 0;
}
#else
DEBUG_LOG("Missing PTP_PIN_SETFUNC");
return 0;
#endif
memset(&extts_req, 0, sizeof (extts_req));
extts_req.index = channel;