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