[v3,03/29] aarch64: Add <bits/pagesize.h>

Message ID	e0e3a312df29f0ab692a502e4eb3e8833575ddaf.1727624528.git.fweimer@redhat.com
State	New
Headers	show Return-Path: <libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org> DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org ACAAB385841E From: Florian Weimer <fweimer@redhat.com> To: libc-alpha@sourceware.org Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>, Wilco Dijkstra <Wilco.Dijkstra@arm.com> Subject: [PATCH v3 03/29] aarch64: Add <bits/pagesize.h> In-Reply-To: <cover.1727624528.git.fweimer@redhat.com> Message-ID: <e0e3a312df29f0ab692a502e4eb3e8833575ddaf.1727624528.git.fweimer@redhat.com> References: <cover.1727624528.git.fweimer@redhat.com> Date: Sun, 29 Sep 2024 17:53:24 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain Precedence: list Errors-To: libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org
Series	Teach glibc about possible page sizes and handle gaps in ld.so \| expand [v3,00/29] Teach glibc about possible page sizes and handle gaps in ld.so [v3,01/29] elf: Add tests to verify that l_contiguous reflects reality [v3,02/29] Prepare for the addition of the <sys/pagesize.h> header [v3,03/29] aarch64: Add <bits/pagesize.h> [v3,04/29] alpha: Add <bits/pagesize.h> [v3,05/29] arc: Add <bits/pagesize.h> [v3,06/29] arm: Add <bits/pagesize.h> [v3,07/29] csky: Add <bits/pagesize.h> [v3,08/29] hppa: Add <bits/pagesize.h> [v3,09/29] loongarch: Add <bits/pagesize.h> [v3,10/29] m68k: Add <bits/pagesize.h> [v3,11/29] microblaze: Add <bits/pagesize.h> [v3,12/29] mips: Add <bits/pagesize.h> [v3,13/29] nios2: Add <bits/pagesize.h> [v3,14/29] or1k: Add <bits/pagesize.h> [v3,15/29] powerpc: Add <bits/pagesize.h> [v3,16/29] riscv: Add <bits/pagesize.h> [v3,17/29] s390: Add <bits/pagesize.h> [v3,18/29] sh: Add <bits/pagesize.h> [v3,19/29] sparc: Add <bits/pagesize.h> [v3,20/29] x86: Add <bits/pagesize.h> [v3,21/29] misc: Add tst-getpagesize [v3,22/29] elf: Extract rtld_setup_phdr function from dl_main [v3,23/29] configure: Add --with-ld-relro-load-gaps configure option and test [v3,24/29] elf: Handle ld.so with LOAD segment gaps in _dl_find_object (bug 31943) [v3,25/29] Install the <sys/pagesize.h> header file [v3,26/29] Linux: Optimize getpagesize using <sys/pagesize.h> [v3,27/29] malloc: Use volatile as compiler barrier in tst-memalign, tst-valloc [v3,28/29] posix: Use <support/next_to_fault.h> in tst-fnmatch3 [v3,29/29] Optimize various ways to obtain the page size using <bits/pagesize.h>

Message ID

e0e3a312df29f0ab692a502e4eb3e8833575ddaf.1727624528.git.fweimer@redhat.com

State

New

Headers

DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org ACAAB385841E
From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>, Wilco Dijkstra
 <Wilco.Dijkstra@arm.com>
Subject: [PATCH v3 03/29] aarch64: Add <bits/pagesize.h>
In-Reply-To: <cover.1727624528.git.fweimer@redhat.com>
Message-ID: 
 <e0e3a312df29f0ab692a502e4eb3e8833575ddaf.1727624528.git.fweimer@redhat.com>
References: <cover.1727624528.git.fweimer@redhat.com>
Date: Sun, 29 Sep 2024 17:53:24 +0200
User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain
Precedence: list
Errors-To: libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org

Series

Teach glibc about possible page sizes and handle gaps in ld.so | expand

Commit Message

Florian Weimer Sept. 29, 2024, 3:53 p.m. UTC

According to Program Loading and Dynamic Linking in
<https://github.com/ARM-software/abi-aa/blob/main/sysvabi64/sysvabi64.rst>,
the maximum supported page size by the ABI is 64 KiB, so the
maximum page shift is 16 bits.
---
 sysdeps/aarch64/bits/pagesize.h | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 sysdeps/aarch64/bits/pagesize.h

diff --git a/sysdeps/aarch64/bits/pagesize.h b/sysdeps/aarch64/bits/pagesize.h
new file mode 100644
index 0000000000..cd688d3fb0
--- /dev/null
+++ b/sysdeps/aarch64/bits/pagesize.h
@@ -0,0 +1,2 @@ 
+#define __GLIBC_PAGE_SHIFT_MIN 12
+#define __GLIBC_PAGE_SHIFT_MAX 16

[v3,03/29] aarch64: Add <bits/pagesize.h>

Commit Message

Patch