From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org, Szabolcs Nagy <Szabolcs.Nagy@arm.com>
Subject: [PATCH 04/17] csky: Remove _dl_skip_args usage
Date: Thu, 26 May 2022 13:49:50 -0300 [thread overview]
Message-ID: <20220526165003.705355-5-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20220526165003.705355-1-adhemerval.zanella@linaro.org>
Since ad43cac44a the generic code already shuffles the argv/envp/auxv
on the stack to remove the ld.so own arguments and thus _dl_skip_args
is always 0. It makes the fixup_stack branch ununsed.
---
sysdeps/csky/dl-machine.h | 19 +------------------
1 file changed, 1 insertion(+), 18 deletions(-)
diff --git a/sysdeps/csky/dl-machine.h b/sysdeps/csky/dl-machine.h
index f81448a141..48787ce3c7 100644
--- a/sysdeps/csky/dl-machine.h
+++ b/sysdeps/csky/dl-machine.h
@@ -113,11 +113,7 @@ _start:\n\
addu t1, gb\n\
jsr t1\n\
_dl_start_user:\n\
- /* get _dl_skip_args */ \n\
- lrw r11, _dl_skip_args@GOTOFF\n\
- addu r11, gb\n\
- ldw r11, (r11, 0)\n\
- /* store program entry address in r11 */ \n\
+ /* store program entry address in r10 */ \n\
mov r10, a0\n\
/* Get argc */\n\
ldw a1, (sp, 0)\n\
@@ -125,8 +121,6 @@ _dl_start_user:\n\
mov a2, sp\n\
addi a2, 4\n\
cmpnei r11, 0\n\
- bt .L_fixup_stack\n\
-.L_done_fixup:\n\
mov a3, a1\n\
lsli a3, 2\n\
add a3, a2\n\
@@ -141,17 +135,6 @@ _dl_start_user:\n\
lrw a0, _dl_fini@GOTOFF\n\
addu a0, gb\n\
jmp r10\n\
-.L_fixup_stack:\n\
- subu a1, r11\n\
- lsli r11, 2\n\
- addu sp, r11\n\
- stw a1, (sp, 0)\n\
- mov a2, sp\n\
- addi a2, 4\n\
- lrw a3, _dl_argv@GOTOFF\n\
- addu a3, gb\n\
- stw a2, (a3, 0)\n\
- br .L_done_fixup\n\
");
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
--
2.34.1
next prev parent reply other threads:[~2022-05-26 16:50 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-26 16:49 [PATCH 00/17] Remove _dl_skip_args Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 01/17] alpha: Remove _dl_skip_args usage Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 02/17] arm: " Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 03/17] arc: " Adhemerval Zanella
2022-05-26 16:49 ` Adhemerval Zanella [this message]
2022-05-26 16:49 ` [PATCH 05/17] hppa: Remove _dl_skip_args usage (BZ# 29165) Adhemerval Zanella
2022-05-26 18:14 ` Florian Weimer
2022-05-26 18:23 ` Adhemerval Zanella
2022-05-26 18:34 ` Florian Weimer
2022-05-26 18:58 ` John David Anglin
2022-05-26 23:10 ` Adhemerval Zanella
2022-05-27 0:01 ` John David Anglin
2022-05-27 12:23 ` Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 06/17] i686: Remove _dl_skip_args usage Adhemerval Zanella
2022-05-26 20:53 ` H.J. Lu
2022-05-26 16:49 ` [PATCH 07/17] ia64: " Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 08/17] m68k: " Adhemerval Zanella
2022-05-26 17:18 ` Andreas Schwab
2022-05-26 17:23 ` Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 09/17] microblaze: " Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 10/17] mips: " Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 11/17] nios2: Remove _dl_skip_args usage (BZ# 29187) Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 12/17] riscv: Remove _dl_skip_args usage Adhemerval Zanella
2022-05-26 16:49 ` [PATCH 13/17] s390: " Adhemerval Zanella
2022-05-26 16:50 ` [PATCH 14/17] sh: " Adhemerval Zanella
2022-05-26 16:50 ` [PATCH 15/17] sparc: " Adhemerval Zanella
2022-05-26 16:50 ` [PATCH 16/17] x86_64: " Adhemerval Zanella
2022-05-26 20:52 ` H.J. Lu
2022-05-26 16:50 ` [PATCH 17/17] elf: Remove _dl_skip_args Adhemerval Zanella
2022-05-30 13:32 ` [PATCH 00/17] " Carlos O'Donell
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