From ea67a0ceabbe2a337bcf5e7593849a13224e2ff0 Mon Sep 17 00:00:00 2001 From: Carmelo Amoroso Date: Fri, 8 Aug 2008 07:28:02 +0000 Subject: Fix SH ldso sequence startup. Pass via r4 the rtld finalizer _dl_fini to the user application. This will be the 6^ arg of __uClibc_main and will be registered with 'atexit'. In this way the dynamic linker will be able to call destructors defined within the loaded DSOs. Signed-off-by: Carmelo Amoroso Acked-by: Paul Mundt Add missing 7th arg "stack_end". add comment of undocumented usage of r4. fix comment of expected __uClibc_main() prototype. Signed-off-by: Yoshii Takashi Acked-by: Paul Mundt --- ldso/ldso/sh/dl-startup.h | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'ldso') diff --git a/ldso/ldso/sh/dl-startup.h b/ldso/ldso/sh/dl-startup.h index 3e59093fa..05e282bd8 100644 --- a/ldso/ldso/sh/dl-startup.h +++ b/ldso/ldso/sh/dl-startup.h @@ -12,10 +12,20 @@ __asm__( " bsrf r0\n" " add #4, r4\n" ".jmp_loc:\n" - " jmp @r0\n" - " mov #0, r4 !call _start with arg == 0\n" + " mov r0, r8 ! Save the user entry point address in r8\n" + " mov.l .L_got, r12 ! Load the GOT on r12\n" + " mova .L_got, r0\n" + " add r0, r12\n" + " mov.l .L_dl_fini, r0\n" + " mov.l @(r0,r12), r4 ! Pass the finalizer in r4\n" + " jmp @r8\n" + " nop\n" ".L_dl_start:\n" " .long _dl_start-.jmp_loc\n" + ".L_dl_fini:\n" + " .long _dl_fini@GOT\n" + ".L_got:\n" + " .long _GLOBAL_OFFSET_TABLE_\n" " .size _start,.-_start\n" " .previous\n" ); -- cgit v1.2.3