AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-09 23:00:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

(_dl_start_user): Use pc-relative addressing to save GOT entries.

Browse Source
This commit is contained in:
Andreas Schwab 2003-01-25 23:07:04 +00:00
parent 1c8bee542b
commit a8433bdddc
1 changed files with 5 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sysdeps/m68k/dl-machine.h
View File

@ -157,13 +157,12 @@ _start:\n\
_dl_start_user:\n\
| Save the user entry point address in %a4.\n\
move.l %d0, %a4\n\
| Point %a5 at the GOT.\n\
lea _GLOBAL_OFFSET_TABLE_@GOTPC(%pc), %a5\n\
| Remember the highest stack address.\n\
move.l %sp, ([__libc_stack_end@GOT.w, %a5])\n\
lea __libc_stack_end(%pc), %a0\n\
move.l %sp, (%a0)\n\
| See if we were run as a command with the executable file\n\
| name as an extra leading argument.\n\
move.l ([_dl_skip_args@GOT.w, %a5]), %d0\n\
move.l _dl_skip_args(%pc), %d0\n\
| Pop the original argument count\n\
move.l (%sp)+, %d1\n\
| Subtract _dl_skip_args from it.\n\
@ -176,12 +175,12 @@ _dl_start_user:\n\
pea 8(%sp, %d1*4)\n\
pea 8(%sp)\n\
move.l %d1, -(%sp)\n\
move.l ([_rtld_local@GOT.w, %a5]), -(%sp)\n\
move.l _rtld_local(%pc), -(%sp)\n\
jbsr _dl_init_internal@PLTPC\n\
addq.l #8, %sp\n\
addq.l #8, %sp\n\
| Pass our finalizer function to the user in %a1.\n\
move.l _dl_fini@GOT.w(%a5), %a1\n\
lea _dl_fini(%pc), %a1\n\
| Initialize %fp with the stack pointer.\n\
move.l %sp, %fp\n\
| Jump to the user's entry point.\n\