VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Paul Mundt <lethal@linux-sh.org> 2008-10-15 22:04:16 -0700 committer: Linus Torvalds <torvalds@linux-foundation.org> 2008-10-16 11:21:46 -0700 commit: 5edc2a5123a7c3d9bcb19ffcf3b91e8d6c246092 parent: c7637941d16ae426a94058fe3b5460a31f68f61b
Commit Summary:
binfmt_elf_fdpic: wire up AT_EXECFD, AT_EXECFN, AT_SECURE
Diffstat:
1 file changed, 13 insertions, 1 deletion
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 9eee649449a8..0e8367c54624 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -25,6 +25,7 @@
 #include <linux/fcntl.h>
 #include <linux/slab.h>
 #include <linux/pagemap.h>
+#include <linux/security.h>
 #include <linux/highmem.h>
 #include <linux/highuid.h>
 #include <linux/personality.h>
@@ -560,11 +561,14 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
 	}
 
 	/* force 16 byte _final_ alignment here for generality */
-#define DLINFO_ITEMS 13
+#define DLINFO_ITEMS 15
 
 	nitems = 1 + DLINFO_ITEMS + (k_platform ? 1 : 0) +
 		(k_base_platform ? 1 : 0) + AT_VECTOR_SIZE_ARCH;
 
+	if (bprm->interp_flags & BINPRM_FLAGS_EXECFD)
+		nitems++;
+
 	csp = sp;
 	sp -= nitems * 2 * sizeof(unsigned long);
 	sp -= (bprm->envc + 1) * sizeof(char *);	/* envv[] */
@@ -602,6 +606,12 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
 			    (elf_addr_t) (unsigned long) u_base_platform);
 	}
 
+	if (bprm->interp_flags & BINPRM_FLAGS_EXECFD) {
+		nr = 0;
+		csp -= 2 * sizeof(unsigned long);
+		NEW_AUX_ENT(AT_EXECFD, bprm->interp_data);
+	}
+
 	nr = 0;
 	csp -= DLINFO_ITEMS * 2 * sizeof(unsigned long);
 	NEW_AUX_ENT(AT_HWCAP,	hwcap);
@@ -617,6 +627,8 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
 	NEW_AUX_ENT(AT_EUID,	(elf_addr_t) current->euid);
 	NEW_AUX_ENT(AT_GID,	(elf_addr_t) current->gid);
 	NEW_AUX_ENT(AT_EGID,	(elf_addr_t) current->egid);
+	NEW_AUX_ENT(AT_SECURE,	security_bprm_secureexec(bprm));
+	NEW_AUX_ENT(AT_EXECFN,	bprm->exec);
 
 #ifdef ARCH_DLINFO
 	nr = 0;