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Mark functions printf-like where possible 

These functions all take a format string and either a list of variable
arguments or a va_list. Use the new DRM_PRINTFLIKE macro to tell the
compiler about it so that the arguments can be checked against the
format string.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
main
Thierry Reding 2014-01-22 12:06:51 +01:00
parent 7974b539d2
commit 44b08c0ddf
4 changed files with 11 additions and 10 deletions
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7
intel/intel_decode.c
View File

@ -29,6 +29,7 @@
#include <stdarg.h>
#include <string.h>
#include "xf86drm.h"
#include "intel_chipset.h"
#include "intel_bufmgr.h"
@ -104,11 +105,7 @@ static float int_as_float(uint32_t intval)
return uval.f;
}
static void
instr_out(struct drm_intel_decode *ctx, unsigned int index,
const char *fmt, ...) __attribute__((format(__printf__, 3, 4)));
static void
static void DRM_PRINTFLIKE(3, 4)
instr_out(struct drm_intel_decode *ctx, unsigned int index,
const char *fmt, ...)
{

2
tests/drmstat.c
View File

@ -425,7 +425,7 @@ int main(int argc, char **argv)
return r;
}
void
void DRM_PRINTFLIKE(4, 0)
xf86VDrvMsgVerb(int scrnIndex, int type, int verb, const char *format,
va_list args)
{

10
xf86drm.c
View File

@ -104,12 +104,16 @@ void drmSetServerInfo(drmServerInfoPtr info)
* This function is a wrapper around vfprintf().
*/
static int drmDebugPrint(const char *format, va_list ap)
static int DRM_PRINTFLIKE(1, 0)
drmDebugPrint(const char *format, va_list ap)
{
return vfprintf(stderr, format, ap);
}
static int (*drm_debug_print)(const char *format, va_list ap) = drmDebugPrint;
typedef int DRM_PRINTFLIKE(1, 0) (*debug_msg_func_t)(const char *format,
va_list ap);
static debug_msg_func_t drm_debug_print = drmDebugPrint;
void
drmMsg(const char *format, ...)
@ -129,7 +133,7 @@ drmMsg(const char *format, ...)
}
void
drmSetDebugMsgFunction(int (*debug_msg_ptr)(const char *format, va_list ap))
drmSetDebugMsgFunction(debug_msg_func_t debug_msg_ptr)
{
drm_debug_print = debug_msg_ptr;
}

2
xf86drm.h
View File

@ -704,7 +704,7 @@ extern int drmSLLookupNeighbors(void *l, unsigned long key,
extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
extern void drmCloseOnce(int fd);
extern void drmMsg(const char *format, ...);
extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2);
extern int drmSetMaster(int fd);
extern int drmDropMaster(int fd);