mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Libraries/DLLLib/s/findAll

   1 ;
   2 ; findall.s
   3 ;
   4 ; Load an application's DLLs from the stub table
   5 ;
   6 ; © 1994 Straylight
   7 ;
   8
   9 ;----- Standard stuff -------------------------------------------------------
  10
  11                 GET     libs:header
  12                 GET     libs:swis
  13
  14 ;----- Other external dependencies ------------------------------------------
  15
  16                 IMPORT  |x$stack_overflow|
  17                 IMPORT  atexit
  18                 IMPORT  malloc
  19                 IMPORT  |_dll_giveMemory|
  20
  21 ;----- Main code ------------------------------------------------------------
  22
  23                 AREA    |DLL$$Code|,CODE,READONLY
  24
  25 ; --- _dll_findall ---
  26 ;
  27 ; On entry:     a1 == DLL$$ExternalTable$$Base
  28 ;               a2 == DLL$$ExternalTable$$Limit
  29 ; On exit:      --
  30
  31                 EXPORT  |_dll_findall|
  32 |_dll_findall|
  33                 ROUT
  34
  35                 ; --- APCS procedure entry ---
  36
  37                 MOV     ip,sp
  38                 STMFD   sp!,{fp,ip,lr,pc}
  39                 SUB     fp,ip,#4
  40                 CMP     sp,sl
  41                 BLLT    |x$stack_overflow|
  42
  43                 ; --- Find the DLLs in the table ---
  44
  45                 SWI     DLL_FindFromTable       ;Load DLLs in the app's table
  46
  47                 ; --- Make sure the DLLs are freed at exit time ---
  48
  49                 LDR     a1,=|_dll_dying|        ;Point to tidy up routine
  50                 BL      atexit                  ;Add tidy-up routine to list
  51
  52                 ; --- Give the DLLs some application space ---
  53
  54                 LDMDB   fp,{fp,sp,lr}           ;Find registers again
  55                 B       |_dll_giveMemory|       ;Tail-call optimisation :-)
  56
  57                 LTORG
  58
  59 ; --- _dll_dying ---
  60
  61 |_dll_dying|    ROUT
  62
  63                 MOV     ip,lr                   ;Keep link register safely
  64                 SWI     DLL_AppDying            ;Close down the application
  65                 MOVS    pc,ip                   ;Return to caller
  66
  67                 LTORG
  68
  69 ;----- That's all, folks ----------------------------------------------------
  70
  71                 END