//bugs.freedesktop.org/show_bug.cgi?id=1402) attachment #948

(https://bugs.freedesktop.org/attachment.cgi?id=948): Fix BigFont
    extension if SHM is compiled in but not working. Does not access SHM
    and privates if the SHM syscall failed during extension initialization.
    Patch by Alexander Gottwald <ago@freedesktop.org>.
This commit is contained in:
Roland Mainz 2004-12-08 06:41:00 +00:00
parent 8982b3c084
commit eb73d7f749

View file

@ -99,12 +99,12 @@ static int FontShmdescIndex;
static unsigned int pagesize;
static Bool badSysCall = FALSE;
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__)
#include <sys/signal.h>
static Bool badSysCall = FALSE;
static void
SigSysHandler(
int signo)
@ -471,13 +471,16 @@ ProcXF86BigfontQueryFont(
if (nCharInfos > 0) {
#ifdef HAS_SHM
pDesc = (ShmDescPtr) FontGetPrivate(pFont, FontShmdescIndex);
if (!badSysCall)
pDesc = (ShmDescPtr) FontGetPrivate(pFont, FontShmdescIndex);
else
pDesc = NULL;
if (pDesc) {
pCI = (xCharInfo *) pDesc->attach_addr;
if (stuff_flags & XF86Bigfont_FLAGS_Shm)
shmid = pDesc->shmid;
} else {
if (stuff_flags & XF86Bigfont_FLAGS_Shm)
if (stuff_flags & XF86Bigfont_FLAGS_Shm && !badSysCall)
pDesc = shmalloc(nCharInfos * sizeof(xCharInfo)
+ sizeof(CARD32));
if (pDesc) {
@ -522,7 +525,7 @@ ProcXF86BigfontQueryFont(
}
}
#ifdef HAS_SHM
if (pDesc) {
if (pDesc && !badSysCall) {
*(CARD32 *)(pCI + nCharInfos) = signature;
if (!FontSetPrivate(pFont, FontShmdescIndex, pDesc)) {
shmdealloc(pDesc);