30 lines
930 B
C
30 lines
930 B
C
/* The job of this fragment it to find argc and friends for INIT.
|
|
This is done in one of two ways: either in the stack context
|
|
of program start, or having dlopen pass them in. */
|
|
|
|
#define SYSDEP_CALL_INIT(NAME, INIT) \
|
|
asm(".weak _dl_starting_up\n\t" \
|
|
".globl " #NAME "\n\t" \
|
|
".ent " #NAME "\n" \
|
|
#NAME ":\n\t" \
|
|
"ldgp $29, 0($27)\n\t" \
|
|
".prologue 1\n\t" \
|
|
".set at\n\t" \
|
|
/* Are we a dynamic libc being loaded into a static program? */ \
|
|
"lda $0, _dl_starting_up\n\t" \
|
|
"beq $0, 1f\n\t" \
|
|
"ldl $0, 0($0)\n" \
|
|
"cmpeq $31, $0, $0\n" \
|
|
"1:\t" \
|
|
"stl $0, __libc_multiple_libcs\n\t" \
|
|
/* If so, argc et al are in a0-a2 already. Otherwise, load them. */ \
|
|
"bne $0, 2f\n\t" \
|
|
"ldl $16, 0($30)\n\t" \
|
|
"lda $17, 8($30)\n\t" \
|
|
"s8addq $16, $17, $18\n\t" \
|
|
"addq $18, 8, $18\n" \
|
|
"2:\t" \
|
|
"br $31, " #INIT "..ng\n\t" \
|
|
".set noat\n\t" \
|
|
".end " #NAME);
|