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* [glibc] Add AT_RSEQ_* from Linux 6.3 to elf.h
@ 2023-05-26 15:03 Joseph Myers
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From: Joseph Myers @ 2023-05-26 15:03 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8754a4133e154ca853e6765a3fe5c7a904c77626
commit 8754a4133e154ca853e6765a3fe5c7a904c77626
Author: Joseph Myers <joseph@codesourcery.com>
Date: Fri May 26 15:03:31 2023 +0000
Add AT_RSEQ_* from Linux 6.3 to elf.h
Linux 6.3 adds constants AT_RSEQ_FEATURE_SIZE and AT_RSEQ_ALIGN; add
them to glibc's elf.h. (Recall that, although elf.h is a
system-independent header, so far we've put AT_* constants there even
if Linux-specific, as discussed in bug 15794. So rather than making
any attempt to fix that issue, the new constants are just added there
alongside the existing ones.)
Tested for x86_64.
Diff:
---
elf/elf.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/elf/elf.h b/elf/elf.h
index 94ca23c1bb..c0803a610e 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -1224,6 +1224,9 @@ typedef struct
#define AT_HWCAP2 26 /* More machine-dependent hints about
processor capabilities. */
+#define AT_RSEQ_FEATURE_SIZE 27 /* rseq supported feature size. */
+#define AT_RSEQ_ALIGN 28 /* rseq allocation alignment. */
+
#define AT_EXECFN 31 /* Filename of executable. */
/* Pointer to the global system page used for system calls and other
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