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glibc/SOURCES/glibc-rh2085529-2.patch

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commit 6c33b018438ee799c29486f21d43d8100bdbd597
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Feb 2 22:37:20 2022 +0100
Linux: Use ptrdiff_t for __rseq_offset
This matches the data size initial-exec relocations use on most
targets.
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/manual/threads.texi b/manual/threads.texi
index 4869f69d2ceed255..48fd562923800b34 100644
--- a/manual/threads.texi
+++ b/manual/threads.texi
@@ -1004,7 +1004,7 @@ The manual for the @code{rseq} system call can be found
at @uref{https://git.kernel.org/pub/scm/libs/librseq/librseq.git/tree/doc/man/rseq.2}.
@end deftp
-@deftypevar {int} __rseq_offset
+@deftypevar {ptrdiff_t} __rseq_offset
@standards{Linux, sys/rseq.h}
This variable contains the offset between the thread pointer (as defined
by @code{__builtin_thread_pointer} or the thread pointer register for
diff --git a/sysdeps/nptl/dl-tls_init_tp.c b/sysdeps/nptl/dl-tls_init_tp.c
index 0f5280a75d546d2f..d5f2587f1348441c 100644
--- a/sysdeps/nptl/dl-tls_init_tp.c
+++ b/sysdeps/nptl/dl-tls_init_tp.c
@@ -46,7 +46,7 @@ rtld_mutex_dummy (pthread_mutex_t *lock)
const unsigned int __rseq_flags;
const unsigned int __rseq_size attribute_relro;
-const int __rseq_offset attribute_relro;
+const ptrdiff_t __rseq_offset attribute_relro;
void
__tls_pre_init_tp (void)
@@ -119,7 +119,7 @@ __tls_init_tp (void)
all targets support __thread_pointer, so set __rseq_offset only
if thre rseq registration may have happened because RSEQ_SIG is
defined. */
- extern int offset __asm__ ("__rseq_offset");
+ extern ptrdiff_t offset __asm__ ("__rseq_offset");
offset = (char *) &pd->rseq_area - (char *) __thread_pointer ();
#endif
}
diff --git a/sysdeps/unix/sysv/linux/aarch64/ld.abilist b/sysdeps/unix/sysv/linux/aarch64/ld.abilist
index bf4d4f9b6f2ddf97..5151c0781de01bf1 100644
--- a/sysdeps/unix/sysv/linux/aarch64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/ld.abilist
@@ -5,5 +5,5 @@ GLIBC_2.17 _dl_mcount F
GLIBC_2.17 _r_debug D 0x28
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/alpha/ld.abilist b/sysdeps/unix/sysv/linux/alpha/ld.abilist
index a23325a566419b41..3e296c547314f6c2 100644
--- a/sysdeps/unix/sysv/linux/alpha/ld.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/ld.abilist
@@ -4,6 +4,6 @@ GLIBC_2.1 _dl_mcount F
GLIBC_2.3 __tls_get_addr F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
GLIBC_2.4 __stack_chk_guard D 0x8
diff --git a/sysdeps/unix/sysv/linux/ia64/ld.abilist b/sysdeps/unix/sysv/linux/ia64/ld.abilist
index 8ccb5be911e0e9a2..5471b24d59a7527a 100644
--- a/sysdeps/unix/sysv/linux/ia64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/ld.abilist
@@ -4,5 +4,5 @@ GLIBC_2.2 _r_debug D 0x28
GLIBC_2.3 __tls_get_addr F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist
index 37a47ebc0a0d16c8..f26e594a139f0058 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist
@@ -4,6 +4,6 @@ GLIBC_2.2 _dl_mcount F
GLIBC_2.3 __tls_get_addr F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
GLIBC_2.4 __stack_chk_guard D 0x8
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/ld.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/ld.abilist
index da24dc7fb52ad2d4..21f472e674299ab7 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/ld.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/ld.abilist
@@ -6,5 +6,5 @@ GLIBC_2.3 _dl_mcount F
GLIBC_2.3 _r_debug D 0x28
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/ld.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/ld.abilist
index b9ae89ae8d90ed9e..9c9c40450d651880 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/ld.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/ld.abilist
@@ -6,5 +6,5 @@ GLIBC_2.22 __tls_get_addr_opt F
GLIBC_2.23 __parse_hwcap_and_convert_at_platform F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist
index 48431c91a9fd16b0..a7758a0e52fc8cc8 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/ld.abilist
@@ -5,5 +5,5 @@ GLIBC_2.27 _dl_mcount F
GLIBC_2.27 _r_debug D 0x28
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist
index 117d1430a4c6272e..78d071600b1f3431 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist
@@ -4,5 +4,5 @@ GLIBC_2.2 _r_debug D 0x28
GLIBC_2.3 __tls_get_offset F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist
index 8ccb5be911e0e9a2..5471b24d59a7527a 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist
@@ -4,5 +4,5 @@ GLIBC_2.2 _r_debug D 0x28
GLIBC_2.3 __tls_get_addr F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4
diff --git a/sysdeps/unix/sysv/linux/sys/rseq.h b/sysdeps/unix/sysv/linux/sys/rseq.h
index 1215b5d086b8852b..791ed83176b61fe4 100644
--- a/sysdeps/unix/sysv/linux/sys/rseq.h
+++ b/sysdeps/unix/sysv/linux/sys/rseq.h
@@ -21,6 +21,7 @@
/* Architecture-specific rseq signature. */
#include <bits/rseq.h>
+#include <stddef.h>
#include <stdint.h>
#include <sys/cdefs.h>
#include <bits/endian.h>
@@ -172,7 +173,7 @@ struct rseq
#endif /* __GLIBC_HAVE_KERNEL_RSEQ */
/* Offset from the thread pointer to the rseq area. */
-extern const int __rseq_offset;
+extern const ptrdiff_t __rseq_offset;
/* Size of the registered rseq area. 0 if the registration was
unsuccessful. */
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist b/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist
index ae622bdf9710bdbd..5a8bd322cdc95d5b 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist
@@ -4,5 +4,5 @@ GLIBC_2.2.5 _r_debug D 0x28
GLIBC_2.3 __tls_get_addr F
GLIBC_2.34 __rtld_version_placeholder F
GLIBC_2.35 __rseq_flags D 0x4
-GLIBC_2.35 __rseq_offset D 0x4
+GLIBC_2.35 __rseq_offset D 0x8
GLIBC_2.35 __rseq_size D 0x4