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authorChristian S.J. Peron <csjp@FreeBSD.org>2019-06-07 14:51:55 +0000
committerChristian S.J. Peron <csjp@FreeBSD.org>2019-06-07 14:51:55 +0000
commitca3075599a3c4ea5c627c292545a8c944d6382d7 (patch)
tree77ac3cdfca3fc85d63a13e954921982dd157666d /sys/sys/elf_common.h
parentcb1ee1bf9becc1a59270873f81fcab0dca017a49 (diff)
downloadsrc-ca3075599a3c4ea5c627c292545a8c944d6382d7.tar.gz
src-ca3075599a3c4ea5c627c292545a8c944d6382d7.zip
Teach readelf about some OpenBSD ELF program headers
- Add constants for OpenBSD wxneeded, bootdata and randomize to the FreeBSD elf_common.h file. This is the file that gets used by the elftoolchain library. - Update readelf and elfdump utilities to decode these program headers if they are encountered. Note: FreeBSD has it's own version of elfdump(1), which will be updated in a subsequent commit. I am adding it here anyway because this diff is going to be submitted upstream. Discussed with: emaste Reviewed by: imp MFC afer: 2 weeks Differential Revision: https://reviews.freebsd.org/D20548 M contrib/elftoolchain/elfdump/elfdump.c M contrib/elftoolchain/readelf/readelf.c M sys/sys/elf_common.h
Notes
Notes: svn path=/head/; revision=348776
Diffstat (limited to 'sys/sys/elf_common.h')
-rw-r--r--sys/sys/elf_common.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/sys/elf_common.h b/sys/sys/elf_common.h
index 86ae3f2e3998..6232756fa06e 100644
--- a/sys/sys/elf_common.h
+++ b/sys/sys/elf_common.h
@@ -535,6 +535,10 @@ typedef struct {
#define PT_ARM_EXIDX 0x70000001 /* ARM exception unwind tables. */
#define PT_HIPROC 0x7fffffff /* Last processor-specific type. */
+#define PT_OPENBSD_RANDOMIZE 0x65A3DBE6 /* OpenBSD random data segment */
+#define PT_OPENBSD_WXNEEDED 0x65A3DBE7 /* OpenBSD EXEC/WRITE pages needed */
+#define PT_OPENBSD_BOOTDATA 0x65A41BE6 /* OpenBSD section for boot args */
+
/* Values for p_flags. */
#define PF_X 0x1 /* Executable. */
#define PF_W 0x2 /* Writable. */