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* sysdeps/m68k/dl-machine.h (RTLD_START): Rewrite for new init

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function interface.  Remove unused _dl_start_user entry point.
This commit is contained in:
Andreas Schwab 2000-04-04 12:08:40 +00:00
parent bd45711455
commit 22b33c06ad
1 changed files with 9 additions and 44 deletions
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53
sysdeps/m68k/dl-machine.h
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@ -156,10 +156,6 @@ _start:
move.l %sp, -(%sp)
jbsr _dl_start
addq.l #4, %sp
.globl _dl_start_user
.type _dl_start_user,@function
_dl_start_user:
| Save the user entry point address in %a4.
move.l %d0, %a4
| Point %a5 at the GOT.
@ -169,7 +165,6 @@ _dl_start_user:
| See if we were run as a command with the executable file
| name as an extra leading argument.
move.l ([_dl_skip_args@GOT.w, %a5]), %d0
jeq 0f
| Pop the original argument count
move.l (%sp)+, %d1
| Subtract _dl_skip_args from it.
@ -178,51 +173,21 @@ _dl_start_user:
lea (%sp, %d0*4), %sp
| Push back the modified argument count.
move.l %d1, -(%sp)
0: | Push the searchlist of the main object as argument in
| the _dl_init_next call below.
move.l ([_dl_main_searchlist@GOT.w, %a5]), %d2
| First dun the pre-initializers.
0: move.l %d2, -(%sp)
| Call _dl_preinit_next to return the address of an pre-initializer
| function to run.
bsr.l _dl_preinit_next@PLTPC
add.l #4, %sp | Pop argument.
| Check for zero return, when out of pre-initializers.
tst.l %d0
jeq 0f
| Call the shared object pre-initializer function.
move.l %d0, %a0
jsr (%a0)
| Loop to call _dl_preinit_next for the next pre-initializer.
jra 0b
0: move.l %d2, -(%sp)
| Call _dl_init_next to return the address of an initializer
| function to run.
bsr.l _dl_init_next@PLTPC
add.l #4, %sp | Pop argument.
| Check for zero return, when out of initializers.
tst.l %d0
jeq 1f
| Call the shared object initializer function.
| NOTE: We depend only on the registers (%d2, %a4 and %a5)
| and the return address pushed by this call;
| the initializer is called with the stack just
| as it appears on entry, and it is free to move
| the stack around, as long as it winds up jumping to
| the return address on the top of the stack.
move.l %d0, %a0
jsr (%a0)
| Loop to call _dl_init_next for the next initializer.
jra 0b
1: | Clear the startup flag.
clr.l ([_dl_starting_up@GOT.w, %a5])
# Call _dl_init (struct link_map *main_map, int argc, char **argv, char **env)
pea 8(%sp, %d1*4)
pea 4(%sp)
move.l %d1, -(%sp)
move.l _dl_loaded@GOT.w(%a5), -(%sp)
jbsr _dl_init@PLTPC
addq.l #8, %sp
addq.l #8, %sp
| Pass our finalizer function to the user in %a1.
move.l _dl_fini@GOT.w(%a5), %a1
| Initialize %fp with the stack pointer.
move.l %sp, %fp
| Jump to the user's entry point.
jmp (%a4)
.size _dl_start_user, . - _dl_start_user
.size _start, . - _start
.previous");
/* Nonzero iff TYPE describes a relocation that should