system/glibc
3
0
Fork 0
Code Issues Projects Releases Wiki Activity

(RTLD_START): Rewrite for new init function interface.

Browse Source
This commit is contained in:
Ulrich Drepper 2000-04-12 20:12:05 +00:00
parent 5719e666f7
commit 21d129104c
1 changed files with 26 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
sysdeps/arm/dl-machine.h
View File

@ -279,36 +279,32 @@ _dl_start_user:
str sp, [r1]
@ See if we were run as a command with the executable file
@ name as an extra leading argument.
ldr r1, .L_SKIP_ARGS
ldr r1, [sl, r1]
@ get the original arg count
ldr r0, [sp]
@ subtract _dl_skip_args from it
sub r0, r0, r1
@ adjust the stack pointer to skip them
add sp, sp, r1, lsl #2
@ store the new argc in the new stack location
str r0, [sp]
@ now we enter a _dl_init_next loop
ldr r4, .L_MAIN_SEARCHLIST
ldr r4, .L_SKIP_ARGS
ldr r4, [sl, r4]
ldr r4, [r4]
@ call _dl_init_next to get the address of an initalizer
0: mov r0, r4
bl _dl_init_next(PLT)
cmp r0, #0
beq 1f
@ call the shared-object initializer
@ during this call, the stack may get moved around
mov lr, pc
mov pc, r0
@ go back and look for another initializer
b 0b
1: @ clear the startup flag
@ get the original arg count
ldr r1, [sp]
@ subtract _dl_skip_args from it
sub r1, r1, r4
@ adjust the stack pointer to skip them
add sp, sp, r4, lsl #2
@ get the argv address
add r2, sp, #4
@ store the new argc in the new stack location
str r1, [sp]
@ compute envp
add r3, r2, r1, lsl #2
add r3, r3, #4
@ now we call _dl_init
ldr r0, .L_LOADED
ldr r0, [sl, r0]
ldr r0, [r0]
@ call _dl_init
bl _dl_init(PLT)
@ clear the startup flag
ldr r2, .L_STARTUP_FLAG
ldr r1, [sl, r2]
@ we know r0==0 at this point
mov r0, #0
str r0, [r1]
@ load the finalizer function
ldr r0, .L_FINI_PROC
@ -325,8 +321,8 @@ _dl_start_user:
.word _dl_fini(GOT)
.L_STACK_END:
.word __libc_stack_end(GOT)
.L_MAIN_SEARCHLIST:
.word _dl_main_searchlist(GOT)
.L_LOADED:
.word _dl_loaded(GOT)
.previous\n\
");
@ -464,7 +460,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
if (value & 0xfc000003)
_dl_signal_error (0, map->l_name,
"R_ARM_PC24 relocation out of range");
value = value >> 2;
value = (*reloc_addr & 0xff000000) | (value & 0x00ffffff);
*reloc_addr = value;