- Add proper 3D acceleration support for FreeBSD guests

Submitted by:	John Clark <clarkjc@runbox.com>

1 files changed, 120 insertions, 0 deletions

diff --git a/emulators/virtualbox-ose-additions/files/patch-src-VBox-Additions-common-crOpenGL-fakedri_drv.c b/emulators/virtualbox-ose-additions/files/patch-src-VBox-Additions-common-crOpenGL-fakedri_drv.c
new file mode 100644
index 000000000000..30e49b85c315
--- /dev/null
+++ b/emulators/virtualbox-ose-additions/files/patch-src-VBox-Additions-common-crOpenGL-fakedri_drv.c
@@ -0,0 +1,120 @@
+--- src/VBox/Additions/common/crOpenGL/fakedri_drv.c.orig	2012-12-19 13:25:04.000000000 -0500
++++ src/VBox/Additions/common/crOpenGL/fakedri_drv.c	2013-01-27 17:57:04.000000000 -0500
+@@ -29,6 +29,15 @@
+ #include <dlfcn.h>
+ #include <elf.h>
+ #include <unistd.h>
++
++#include <sys/param.h>
++#if defined(BSD)
++#include <fcntl.h>
++#include <gelf.h>
++#include <libelf.h>
++#include <string.h>
++#endif
++
+ /** X server message type definitions. */
+ typedef enum {
+     X_PROBED,			/* Value was probed */
+@@ -50,11 +59,11 @@
+ 
+ //@todo this could be different...
+ #ifdef RT_ARCH_AMD64
+-# define DRI_DEFAULT_DRIVER_DIR "/usr/lib64/dri:/usr/lib/dri:/usr/lib/x86_64-linux-gnu/dri"
+-# define DRI_XORG_DRV_DIR "/usr/lib/xorg/modules/drivers/"
++# define DRI_DEFAULT_DRIVER_DIR "/usr/local/lib/dri"
++# define DRI_XORG_DRV_DIR "/usr/local/lib/xorg/modules/drivers/"
+ #else
+-# define DRI_DEFAULT_DRIVER_DIR "/usr/lib/dri:/usr/lib/i386-linux-gnu/dri"
+-# define DRI_XORG_DRV_DIR "/usr/lib/xorg/modules/drivers/"
++# define DRI_DEFAULT_DRIVER_DIR "/usr/local/lib/dri"
++# define DRI_XORG_DRV_DIR "/usr/local/lib/xorg/modules/drivers/"
+ #endif
+ 
+ #ifdef DEBUG_DRI_CALLS
+@@ -209,6 +218,85 @@
+ 
+ #define FAKEDRI_JMP64_PATCH_SIZE 13
+ 
++#if defined(BSD)
++/* Provide basic dladdr1 flags */
++enum {
++	RTLD_DL_SYMENT	= 1
++};
++
++/* Provide a minimal local version of dladdr1 */
++static int
++dladdr1(const void *address, Dl_info *dlip, void **info, int flags)
++{
++	static DRI_ELFSYM desym;
++	GElf_Sym sym;
++	GElf_Shdr shdr;
++	Elf *elf;
++	Elf_Scn *scn;
++	Elf_Data *data;
++	int ret, fd, count, i;
++
++	/* Initialize variables */
++	fd = -1;
++	elf = NULL;
++
++	/* Call dladdr first */
++	ret = dladdr(address, dlip);
++	if (ret == 0) goto err_exit;
++
++	/* Check for supported flags */
++	if (flags != RTLD_DL_SYMENT) return 1;
++
++	/* Open shared library's ELF file */
++	if (elf_version(EV_CURRENT) == EV_NONE) goto err_exit;
++	fd = open(dlip->dli_fname, O_RDONLY);
++	if (fd < 0) goto err_exit;
++	elf = elf_begin(fd, ELF_C_READ, NULL);
++	if (elf == NULL) goto err_exit;
++
++	/* Find the '.dynsym' section */
++	scn = elf_nextscn(elf, NULL);
++	while (scn != NULL) {
++		if (gelf_getshdr(scn, &shdr) == NULL) goto err_exit;
++		if (shdr.sh_type == SHT_DYNSYM) break;
++		scn = elf_nextscn(elf, scn);
++	}
++	if (scn == NULL) goto err_exit;
++
++	/* Search for the requested symbol by name and offset */
++	data = elf_getdata(scn, NULL);
++	count = shdr.sh_size / shdr.sh_entsize;
++	for (i = 0; i < count; i++) {
++		gelf_getsym(data, i, &sym);
++		if ((strcmp(dlip->dli_sname,
++		        elf_strptr(elf, shdr.sh_link, sym.st_name)) == 0) &&
++		    (sym.st_value == (dlip->dli_saddr - dlip->dli_fbase))) {
++			break;
++		}
++	}
++
++	/* Close ELF file */
++	elf_end(elf);
++	close(fd);
++
++	/* Return symbol entry in native format */
++	desym.st_name = sym.st_name;
++	desym.st_info = sym.st_info;
++	desym.st_other = sym.st_other;
++	desym.st_shndx = sym.st_shndx;
++	desym.st_value = sym.st_value;
++	desym.st_size = sym.st_size;
++	*info = &desym;
++	return 1;
++
++	/* Error handler */
++err_exit:
++	if (elf != NULL) elf_end(elf);
++	if (fd >= 0) close(fd);
++	return 0;
++}
++#endif
++
+ static void
+ vboxPatchMesaExport(const char* psFuncName, const void *pStart, const void *pEnd)
+ {