[glibc] sh: Remove _dl_skip_args usage

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4dc1f6530e22df8ccab75b65300f3dd731e3539b

commit 4dc1f6530e22df8ccab75b65300f3dd731e3539b
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu May 26 13:14:04 2022 -0300

    sh: Remove _dl_skip_args usage
    
    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.   So there is no need to adjust the argc or argv.
    
    Checked with qemu-user that arguments are correctly passed on both
    constructors and main program.
    
    Reviewed-by: Carlos O'Donell <carlos@redhat.com>

Diff:
---
 sysdeps/sh/dl-machine.h | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/sysdeps/sh/dl-machine.h b/sysdeps/sh/dl-machine.h
index 8b08a1fc47..99eb239408 100644
--- a/sysdeps/sh/dl-machine.h
+++ b/sysdeps/sh/dl-machine.h
@@ -149,20 +149,8 @@ _dl_start_user:\n\
 	 add r0,r12\n\
 	.align 2\n\
 1:	.long _GLOBAL_OFFSET_TABLE_\n\
-2:	! See if we were run as a command with the executable file\n\
-	! name as an extra leading argument.\n\
-	mov.l .L_dl_skip_args,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov.l @r0,r0\n\
-	! Get the original argument count.\n\
+2:	! Get the original argument count.\n\
 	mov.l @r15,r5\n\
-	! Subtract _dl_skip_args from it.\n\
-	sub r0,r5\n\
-	! Adjust the stack pointer to skip _dl_skip_args words.\n\
-	shll2 r0\n\
-	add r0,r15\n\
-	! Store back the modified argument count.\n\
-	mov.l r5,@r15\n\
 	! Compute argv address and envp.\n\
 	mov r15,r6\n\
 	add #4,r6\n\
@@ -188,8 +176,6 @@ _dl_start_user:\n\
 	.align 2\n\
 .L_dl_start:\n\
 	.long _dl_start@PLT\n\
-.L_dl_skip_args:\n\
-	.long _dl_skip_args@GOT\n\
 .L_dl_init:\n\
 	.long _dl_init@PLT\n\
 .L_dl_loaded:\n\