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* [Bug libc/28703] New: RISC-V: _dl_init might be called with unaligned stack
@ 2021-12-15 23:11 aurelien at aurel32 dot net
2021-12-17 19:30 ` [Bug libc/28703] " cvs-commit at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: aurelien at aurel32 dot net @ 2021-12-15 23:11 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28703
Bug ID: 28703
Summary: RISC-V: _dl_init might be called with unaligned stack
Product: glibc
Version: 2.35
Status: NEW
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: aurelien at aurel32 dot net
CC: drepper.fsp at gmail dot com
Target Milestone: ---
On RISC-V, _dl_init should be called with the stack aligned to 128 bits or 16
bytes as per RISC-V ABI [1].
This is detected by:
FAIL: elf/tst-align2
[1] https://github.com/riscv-non-isa/riscv-elf-psabi-doc
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* [Bug libc/28703] RISC-V: _dl_init might be called with unaligned stack
2021-12-15 23:11 [Bug libc/28703] New: RISC-V: _dl_init might be called with unaligned stack aurelien at aurel32 dot net
@ 2021-12-17 19:30 ` cvs-commit at gcc dot gnu.org
2021-12-17 19:30 ` aurelien at aurel32 dot net
2021-12-17 21:50 ` cvs-commit at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-12-17 19:30 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28703
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Aurelien Jarno <aurel32@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=225da459cebef1037dcd78b56471edc0721e1c41
commit 225da459cebef1037dcd78b56471edc0721e1c41
Author: Aurelien Jarno <aurelien@aurel32.net>
Date: Thu Dec 16 00:06:28 2021 +0100
riscv: align stack before calling _dl_init [BZ #28703]
Align the stack pointer to 128 bits during the call to _dl_init() as
specified by the RISC-V ABI [1]. This fixes the elf/tst-align2 test.
Fixes bug 28703.
[1] https://github.com/riscv-non-isa/riscv-elf-psabi-doc
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* [Bug libc/28703] RISC-V: _dl_init might be called with unaligned stack
2021-12-15 23:11 [Bug libc/28703] New: RISC-V: _dl_init might be called with unaligned stack aurelien at aurel32 dot net
2021-12-17 19:30 ` [Bug libc/28703] " cvs-commit at gcc dot gnu.org
@ 2021-12-17 19:30 ` aurelien at aurel32 dot net
2021-12-17 21:50 ` cvs-commit at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: aurelien at aurel32 dot net @ 2021-12-17 19:30 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28703
Aurelien Jarno <aurelien at aurel32 dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #2 from Aurelien Jarno <aurelien at aurel32 dot net> ---
Fixed in 2.35.
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* [Bug libc/28703] RISC-V: _dl_init might be called with unaligned stack
2021-12-15 23:11 [Bug libc/28703] New: RISC-V: _dl_init might be called with unaligned stack aurelien at aurel32 dot net
2021-12-17 19:30 ` [Bug libc/28703] " cvs-commit at gcc dot gnu.org
2021-12-17 19:30 ` aurelien at aurel32 dot net
@ 2021-12-17 21:50 ` cvs-commit at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-12-17 21:50 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28703
--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.34/master branch has been updated by Aurelien Jarno
<aurel32@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=aa3a97496c82a8443039248ebee650322c9480f4
commit aa3a97496c82a8443039248ebee650322c9480f4
Author: Aurelien Jarno <aurelien@aurel32.net>
Date: Thu Dec 16 00:06:28 2021 +0100
riscv: align stack before calling _dl_init [BZ #28703]
Align the stack pointer to 128 bits during the call to _dl_init() as
specified by the RISC-V ABI [1]. This fixes the elf/tst-align2 test.
Fixes bug 28703.
[1] https://github.com/riscv-non-isa/riscv-elf-psabi-doc
(cherry picked from commit 225da459cebef1037dcd78b56471edc0721e1c41)
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2021-12-15 23:11 [Bug libc/28703] New: RISC-V: _dl_init might be called with unaligned stack aurelien at aurel32 dot net
2021-12-17 19:30 ` [Bug libc/28703] " cvs-commit at gcc dot gnu.org
2021-12-17 19:30 ` aurelien at aurel32 dot net
2021-12-17 21:50 ` cvs-commit at gcc dot gnu.org
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