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@@ -1,4 +1,400 @@
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/*
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+ * This file is part of the Free Pascal run time library.
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+ * Copyright (c) 2005 by Thomas Schatzl,
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+ * member of the Free Pascal development team.
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+ *
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+ * Startup code for normal programs, PowerPC64 version.
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+ *
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+ * See the file COPYING.FPC, included in this distribution,
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+ * for details about the copyright.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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+ */
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+
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+.macro LOAD_64BIT_VAL ra, value
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+ lis \ra,\value@highest
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+ ori \ra,\ra,\value@higher
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+ sldi \ra,\ra,32
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+ oris \ra,\ra,\value@h
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+ ori \ra,\ra,\value@l
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+.endm
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+
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+/* create function prolog for symbol "fn" */
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+.macro FUNCTION_PROLOG fn
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+ .section ".text"
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+ .align 2
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+ .globl \fn
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+ .section ".opd", "aw"
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+ .align 3
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+\fn:
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+ .quad .\fn, .TOC.@tocbase, 0
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+ .previous
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+ .size \fn, 24
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+ .type \fn, @function
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+ .globl .\fn
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+.\fn:
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+.endm
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+
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+/*
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+ * "ptrgl" glue code for calls via pointer. This function
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+ * sequence loads the data from the function descriptor
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+ * referenced by R11 into the CTR register (function address),
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+ * R2 (GOT/TOC pointer), and R11 (the outer frame pointer).
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+ *
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+ * On entry, R11 must be set to point to the function descriptor.
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+ *
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+ * See also the 64-bit PowerPC ABI specification for more
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+ * information, chapter 3.5.11 (in v1.7).
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+ */
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+.section ".text"
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+.align 3
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+.globl .ptrgl
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+.ptrgl:
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+ ld 0, 0(11)
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+ std 2, 40(1)
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+ mtctr 0
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+ ld 2, 8(11)
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+ ld 11, 8(11)
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+ bctr
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+.long 0
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+.byte 0, 12, 128, 0, 0, 0, 0, 0
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+.type .ptrgl, @function
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+.size .ptrgl, . - .ptrgl
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+
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+/*
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+ * Function prolog/epilog helpers, which are part of the 64-bit
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+ * PowerPC ABI.
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+ *
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+ * See also the 64-bit PowerPC ABI specification for more
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+ * information, chapter 3.5.5, "Register saving and restoring
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+ * function" (in v1.7).
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+ */
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+
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+/* Each _savegpr0_N routine saves the general registers from rN to r31,
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+ * inclusive. When the routine is called, r1 must point to the start
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+ * of the general register save area. R0 must contain the old LR on
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+ * entry.
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+ */
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+_savegpr0_14: std 14,-144(1)
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+_savegpr0_15: std 15,-136(1)
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+_savegpr0_16: std 16,-128(1)
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+_savegpr0_17: std 17,-120(1)
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+_savegpr0_18: std 18,-112(1)
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+_savegpr0_19: std 19,-104(1)
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+_savegpr0_20: std 20,-96(1)
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+_savegpr0_21: std 21,-88(1)
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+_savegpr0_22: std 22,-80(1)
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+_savegpr0_23: std 23,-72(1)
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+_savegpr0_24: std 24,-64(1)
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+_savegpr0_25: std 25,-56(1)
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+_savegpr0_26: std 26,-48(1)
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+_savegpr0_27: std 27,-40(1)
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+_savegpr0_28: std 28,-32(1)
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+_savegpr0_29: std 29,-24(1)
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+_savegpr0_30: std 30,-16(1)
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+_savegpr0_31:
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+ std 31,-8(1)
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+ std 0, 16(1)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+/* Each _restgpr0_N routine restores the general registers from rN to r31,
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+ * inclusive. When the routine is called, r1 must point to the start
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+ * of the general register save area.
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+ */
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+_restgpr0_14: ld 14,-144(1)
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+_restgpr0_15: ld 15,-136(1)
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+_restgpr0_16: ld 16,-128(1)
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+_restgpr0_17: ld 17,-120(1)
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+_restgpr0_18: ld 18,-112(1)
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+_restgpr0_19: ld 19,-104(1)
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+_restgpr0_20: ld 20,-96(1)
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+_restgpr0_21: ld 21,-88(1)
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+_restgpr0_22: ld 22,-80(1)
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+_restgpr0_23: ld 23,-72(1)
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+_restgpr0_24: ld 24,-64(1)
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+_restgpr0_25: ld 25,-56(1)
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+_restgpr0_26: ld 26,-48(1)
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+_restgpr0_27: ld 27,-40(1)
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+_restgpr0_28: ld 28,-32(1)
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+_restgpr0_29:
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+ ld 0, 16(1)
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+ ld 29,-24(1)
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+ mtlr 0
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+ ld 30,-16(1)
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+ ld 31,-8(1)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+_restgpr0_30: ld 30,-16(1)
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+_restgpr0_31: ld 0, 16(1)
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+ ld 31,-8(1)
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+ mtlr 0
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+/* Each _savegpr1_N routine saves the general registers from rN to r31,
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+ * inclusive. When the routine is called, r12
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+ * must point to the start of the general register save area.
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+ */
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+_savegpr1_14: std 14,-144(12)
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+_savegpr1_15: std 15,-136(12)
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+_savegpr1_16: std 16,-128(12)
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+_savegpr1_17: std 17,-120(12)
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+_savegpr1_18: std 18,-112(12)
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+_savegpr1_19: std 19,-104(12)
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+_savegpr1_20: std 20,-96(12)
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+_savegpr1_21: std 21,-88(12)
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+_savegpr1_22: std 22,-80(12)
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+_savegpr1_23: std 23,-72(12)
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+_savegpr1_24: std 24,-64(12)
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+_savegpr1_25: std 25,-56(12)
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+_savegpr1_26: std 26,-48(12)
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+_savegpr1_27: std 27,-40(12)
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+_savegpr1_28: std 28,-32(12)
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+_savegpr1_29: std 29,-24(12)
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+_savegpr1_30: std 30,-16(12)
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+_savegpr1_31: std 31,-8(12)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+/* The _restgpr1_N routines restore the general registers from rN to r31.
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+ * When the routine is called, r12 must point to the start of the general
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+ * register save area.
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+ */
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+_restgpr1_14: ld 14,-144(12)
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+_restgpr1_15: ld 15,-136(12)
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+_restgpr1_16: ld 16,-128(12)
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+_restgpr1_17: ld 17,-120(12)
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+_restgpr1_18: ld 18,-112(12)
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+_restgpr1_19: ld 19,-104(12)
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+_restgpr1_20: ld 20,-96(12)
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+_restgpr1_21: ld 21,-88(12)
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+_restgpr1_22: ld 22,-80(12)
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+_restgpr1_23: ld 23,-72(12)
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+_restgpr1_24: ld 24,-64(12)
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+_restgpr1_25: ld 25,-56(12)
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+_restgpr1_26: ld 26,-48(12)
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+_restgpr1_27: ld 27,-40(12)
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+_restgpr1_28: ld 28,-32(12)
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+_restgpr1_29: ld 29,-24(12)
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+_restgpr1_30: ld 30,-16(12)
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+_restgpr1_31: ld 31,-8(12)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+/* Each _savefpr_M routine saves the floating point registers from fM to f31,
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+ * inclusive. When the routine is called, r1 must point to the start of the
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+ * floating point register save area, and r0 must contain the value of LR on
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+ * function entry.
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+ */
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+_savefpr_14: stfd 14,-144(1)
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+_savefpr_15: stfd 15,-136(1)
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+_savefpr_16: stfd 16,-128(1)
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+_savefpr_17: stfd 17,-120(1)
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+_savefpr_18: stfd 18,-112(1)
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+_savefpr_19: stfd 19,-104(1)
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+_savefpr_20: stfd 20,-96(1)
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+_savefpr_21: stfd 21,-88(1)
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+_savefpr_22: stfd 22,-80(1)
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+_savefpr_23: stfd 23,-72(1)
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+_savefpr_24: stfd 24,-64(1)
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+_savefpr_25: stfd 25,-56(1)
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+_savefpr_26: stfd 26,-48(1)
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+_savefpr_27: stfd 27,-40(1)
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+_savefpr_28: stfd 28,-32(1)
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+_savefpr_29: stfd 29,-24(1)
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+_savefpr_30: stfd 30,-16(1)
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+_savefpr_31: stfd 31,-8(1)
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+ std 0, 16(1)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+/* The _restfpr_M routines restore the floating point registers from fM to f31.
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+ * When the routine is called, r1 must point to the start of the floating point
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+ * register save area.
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+ */
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+_restfpr_14: lfd 14,-144(1)
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+_restfpr_15: lfd 15,-136(1)
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+_restfpr_16: lfd 16,-128(1)
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+_restfpr_17: lfd 17,-120(1)
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+_restfpr_18: lfd 18,-112(1)
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+_restfpr_19: lfd 19,-104(1)
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+_restfpr_20: lfd 20,-96(1)
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+_restfpr_21: lfd 21,-88(1)
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+_restfpr_22: lfd 22,-80(1)
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+_restfpr_23: lfd 23,-72(1)
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+_restfpr_24: lfd 24,-64(1)
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+_restfpr_25: lfd 25,-56(1)
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+_restfpr_26: lfd 26,-48(1)
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+_restfpr_27: lfd 27,-40(1)
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+_restfpr_28: lfd 28,-32(1)
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+_restfpr_29:
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+ ld 0, 16(1)
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+ lfd 29,-24(1)
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+ mtlr 0
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+ lfd 30,-16(1)
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+ lfd 31,-8(1)
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+_restfpr_30: lfd 30,-16(1)
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+_restfpr_31:
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+ ld 0, 16(1)
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+ lfd 31,-8(1)
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+ mtlr 0
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+ blr
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+.long 0
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+.byte 0, 12, 64, 0, 0, 0, 0, 0
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+
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+/* Each _savevr_M routine saves the vector registers from vM to v31, inclusive.
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+ * When the routine is called, r0 must point to the word just beyound the end
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+ * of the vector register save area. On return the value of r0 is unchanged
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+ * while r12 may be modified.
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+ */
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+/* commented out for now, unused
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+_savevr_20: addi r12,r0,-192
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+ stvx v20,r12,r0
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+_savevr_21: addi r12,r0,-176
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+ stvx v21,r12,r0
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+_savevr_22: addi r12,r0,-160
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+ stvx v22,r12,r0
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+_savevr_23: addi r12,r0,-144
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+ stvx v23,r12,r0
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+_savevr_24: addi r12,r0,-128
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+ stvx v24,r12,r0
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+_savevr_25: addi r12,r0,-112
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+ stvx v25,r12,r0
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+_savevr_26: addi r12,r0,-96
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+ stvx v26,r12,r0
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+_savevr_27: addi r12,r0,-80
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+ stvx v27,r12,r0
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+_savevr_28: addi r12,r0,-64
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+ stvx v28,r12,r0
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+_savevr_29: addi r12,r0,-48
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+ stvx v29,r12,r0
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+_savevr_30: addi r12,r0,-32
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+ stvx v30,r12,r0
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+_savevr_31: addi r12,r0,-16
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+ stvx v31,r12,r0
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+ blr
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*/
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+/* The _restvr_M routines restore the vector registers from vM to v31. When the
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+ * routine is called, r0 must point to the word just beyound the end of the
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+ * vector register save area. On return the value of r0 is unchanged while r12
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+ * may be modified.
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+ */
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+/* commented out for now, unused
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+_restvr_20: addi r12,r0,-192
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+ lvx v20,r12,r0
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+_restvr_21: addi r12,r0,-176
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+ lvx v21,r12,r0
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+_restvr_22: addi r12,r0,-160
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+ lvx v22,r12,r0
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+_restvr_23: addi r12,r0,-144
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+ lvx v23,r12,r0
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+_restvr_24: addi r12,r0,-128
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+ lvx v24,r12,r0
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+_restvr_25: addi r12,r0,-112
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+ lvx v25,r12,r0
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+_restvr_26: addi r12,r0,-96
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+ lvx v26,r12,r0
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+_restvr_27: addi r12,r0,-80
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+ lvx v27,r12,r0
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+_restvr_28: addi r12,r0,-64
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+ lvx v28,r12,r0
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+_restvr_29: addi r12,r0,-48
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+ lvx v29,r12,r0
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+_restvr_30: addi r12,r0,-32
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+ lvx v30,r12,r0
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+_restvr_31: addi r12,r0,-16
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+ lvx v31,r12,r0
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+ blr
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+*/
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+
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+/*
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+ * Main program entry point label (function), called by the loader
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+ */
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+FUNCTION_PROLOG FPC_SHARED_LIB_START
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+
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+ mflr 0
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+ std 0, 16(1) /* save LR */
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+ stdu 1, -144(1) /* save back chain, make frame */
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+
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+ /* store argument count (in r3?)*/
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+ LOAD_64BIT_VAL 10, operatingsystem_parameter_argc
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+ stw 3, 0(10)
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+ /* store argument vector (in r4?) */
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+ LOAD_64BIT_VAL 10, operatingsystem_parameter_argv
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+ std 4, 0(10)
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+ /* store environment pointer (in r5?) */
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+ LOAD_64BIT_VAL 10, operatingsystem_parameter_envp
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+ std 5, 0(10)
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+
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+ /* update library flag in RTL */
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+ LOAD_64BIT_VAL 8, TC_SYSTEM_ISLIBRARY
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+ li 6, 1
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+ stw 6, 0(8)
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+
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+ LOAD_64BIT_VAL 8, __stkptr
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+ std 1,0(8)
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+
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+ bl PASCALMAIN
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+ nop
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+
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+ /* return to the caller */
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+ addi 1,1,144 /* restore stack */
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+ ld 0,16(1) /* prepare for method return */
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+ mtlr 0
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+ blr
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+
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+FUNCTION_PROLOG _haltproc
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+FUNCTION_PROLOG FPC_SHARED_LIB_EXIT
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+ bl FPC_LIB_EXIT
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+ nop
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+ /* exit_group call */
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+ LOAD_64BIT_VAL 3, operatingsystem_result
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+ lwz 3, 0(3)
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+ li 0, 234
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+ sc
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+ /* exit call */
|
|
|
+ LOAD_64BIT_VAL 3, operatingsystem_result
|
|
|
+ lwz 3, 0(3)
|
|
|
+ li 0, 1
|
|
|
+ sc
|
|
|
+ b .FPC_SHARED_LIB_EXIT
|
|
|
+
|
|
|
+ /* Define a symbol for the first piece of initialized data. */
|
|
|
+ .section ".data"
|
|
|
+ .globl __data_start
|
|
|
+__data_start:
|
|
|
+data_start:
|
|
|
+
|
|
|
+ .section ".bss"
|
|
|
+
|
|
|
+ .type __stkptr, @object
|
|
|
+ .size __stkptr, 8
|
|
|
+ .global __stkptr
|
|
|
+__stkptr:
|
|
|
+ .skip 8
|
|
|
+
|
|
|
+ .type operatingsystem_parameters, @object
|
|
|
+ .size operatingsystem_parameters, 24
|
|
|
+operatingsystem_parameters:
|
|
|
+ .skip 3 * 8
|
|
|
+ .global operatingsystem_parameter_argc
|
|
|
+ .global operatingsystem_parameter_argv
|
|
|
+ .global operatingsystem_parameter_envp
|
|
|
+ .set operatingsystem_parameter_argc, operatingsystem_parameters+0
|
|
|
+ .set operatingsystem_parameter_argv, operatingsystem_parameters+8
|
|
|
+ .set operatingsystem_parameter_envp, operatingsystem_parameters+16
|
|
|
|
|
|
-/* empty */
|
|
|
+.section .note.GNU-stack,"",%progbits
|
marco