This is the mail archive of the
glibc-cvs@sourceware.org
mailing list for the glibc project.
[glibc] aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS
- From: Szabolcs Nagy <nsz at sourceware dot org>
- To: glibc-cvs at sourceware dot org
- Date: 13 Jun 2019 08:45:57 -0000
- Subject: [glibc] aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=55f82d328d2dd1c7c13c1992f4b9bf9c95b57551
commit 55f82d328d2dd1c7c13c1992f4b9bf9c95b57551
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Thu Apr 25 15:35:35 2019 +0100
aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS
STO_AARCH64_VARIANT_PCS is a non-visibility st_other flag for marking
symbols that reference functions that may follow a variant PCS with
different register usage convention from the base PCS.
DT_AARCH64_VARIANT_PCS is a dynamic tag that marks ELF modules that
have R_*_JUMP_SLOT relocations for symbols marked with
STO_AARCH64_VARIANT_PCS (i.e. have variant PCS calls via a PLT).
* elf/elf.h (STO_AARCH64_VARIANT_PCS): Define.
(DT_AARCH64_VARIANT_PCS): Define.
Diff:
---
ChangeLog | 5 +++++
elf/elf.h | 7 +++++++
2 files changed, 12 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 2afedc1..456b9ba 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-06-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * elf/elf.h (STO_AARCH64_VARIANT_PCS): Define.
+ (DT_AARCH64_VARIANT_PCS): Define.
+
2019-06-12 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
diff --git a/elf/elf.h b/elf/elf.h
index bb13c87..7c6d609 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -2864,6 +2864,13 @@ enum
#define R_AARCH64_TLSDESC 1031 /* TLS Descriptor. */
#define R_AARCH64_IRELATIVE 1032 /* STT_GNU_IFUNC relocation. */
+/* AArch64 specific values for the Dyn d_tag field. */
+#define DT_AARCH64_VARIANT_PCS (DT_LOPROC + 5)
+#define DT_AARCH64_NUM 6
+
+/* AArch64 specific values for the st_other field. */
+#define STO_AARCH64_VARIANT_PCS 0x80
+
/* ARM relocs. */
#define R_ARM_NONE 0 /* No reloc */