3e80841e27
which is either commented out or ifdef'd out. Add, update and clean comments. Fix various indention and spacing problems. Handle problems related to using "ble" to jump to a stub rather than "bl" (%r31 is trashed by "ble", but not by "bl"). (NEW_INSTRUCTION): Put inside curly braces. (CURRENT_STUB_OFFSET): Fix indention problems. (hppa_elf_build_arg_reloc_stub): Fix indention and spacing problems. Add, update and clean comments. Handle "ble" %r31 lossage problems. (hppa_elf_build_long_branch_stub): Likewise. (hppa_look_for_stubs_in_section): Likewise. (hppa_elf_stub_check): Remove obsolete function. * hppa_stubs.h: Add new instructions to deal with %r31 lossage problems. Delete unused instructions.
59 lines
3.5 KiB
C
59 lines
3.5 KiB
C
/* HPPA linker stub instructions */
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/* Maximum size of a single stub routine in bytes. */
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#define STUB_MAX_SIZE (sizeof(int) * 20)
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/* When realloc'ing, use this size ?!? FIXME, what are these? */
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#define STUB_BUFFER_INCR (STUB_MAX_SIZE * 20)
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#define STUB_RELOC_INCR 20
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/* These are the instructions which the linker may insert into the
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code stream when building final executables to handle out-of-range
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calls and argument relocations. */
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#define ADDI_8_SP 0xb7de0010 /* addi 8,sp,sp */
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#define STW_RP_M8SP 0x6bc23ff1 /* stw rp,-8(sp) */
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#define STWS_ARG0_M8SP 0x0fda1291 /* stws arg0,-8(sp) */
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#define STWS_ARG1_M8SP 0x0fd91291 /* stws arg1,-8(sp) */
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#define STWS_ARG2_M8SP 0x0fd81291 /* stws arg2,-8(sp) */
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#define STWS_ARG3_M8SP 0x0fd71291 /* stws arg3,-8(sp) */
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#define STWS_ARG0_M4SP 0x0fda1299 /* stws arg0,-4(sp) */
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#define STWS_ARG2_M4SP 0x0fd81299 /* stws arg2,-4(sp) */
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#define FSTWS_FARG0_M8SP 0x27d11204 /* fstws farg0,-8(sp) */
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#define FSTWS_FARG1_M8SP 0x27d11205 /* fstws farg1,-8(sp) */
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#define FSTWS_FARG2_M8SP 0x27d11206 /* fstws farg2,-8(sp) */
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#define FSTWS_FARG3_M8SP 0x27d11207 /* fstws farg3,-8(sp) */
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#define FSTDS_FARG1_M8SP 0x2fd11205 /* fstds farg1,-8(sp) */
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#define FSTDS_FARG3_M8SP 0x2fd11207 /* fstds farg3,-8(sp) */
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#define STWS_RET0_M8SP 0x0fda1291 /* stws arg0,-8(sp) */
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#define FSTWS_FRET0_M8SP 0x27d11204 /* fstws fret0,-8(sp) */
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#define LDWS_M8SP_ARG1 0x0fd11099 /* ldws -8(sp),arg1 */
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#define LDWS_M8SP_ARG3 0x0fd11097 /* ldws -8(sp),arg3 */
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#define LDWS_M4SP_ARG0 0x0fd9109a /* ldws -4(sp),arg0 */
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#define LDWS_M4SP_ARG1 0x0fd91099 /* ldws -4(sp),arg1 */
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#define LDWS_M4SP_ARG2 0x0fd91098 /* ldws -4(sp),arg2 */
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#define LDWS_M4SP_ARG3 0x0fd91097 /* ldws -4(sp),arg3 */
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#define FLDWS_M8SP_FARG0 0x27d11004 /* fldws -8(sp),farg0 */
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#define FLDWS_M8SP_FARG1 0x27d11005 /* fldws -8(sp),farg1 */
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#define FLDWS_M8SP_FARG2 0x27d11006 /* fldws -8(sp),farg2 */
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#define FLDWS_M8SP_FARG3 0x27d11007 /* fldws -8(sp),farg3 */
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#define FLDDS_M8SP_FARG1 0x2fd11005 /* fldds -8(sp),farg1 */
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#define FLDDS_M8SP_FARG3 0x2fd11007 /* fldds -8(sp),farg3 */
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#define LDWS_M4SP_RET0 0x0fd9109c /* ldws -4(sp),ret0 */
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#define FLDWS_M8SP_FRET0 0x27d11004 /* fldws -8(sp),fret0 */
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#define BLE_XXX_0_0 0xe4000000 /* ble 0(sr0,0) */
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#define BLE_N_XXX_0_0 0xe4000002 /* ble,n 0(sr0,0) */
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#define BLE_XXX_0_31 0xe7e00000 /* ble 0(sr0,r31) */
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#define BE_N_XXX_0_31 0xe3e00002 /* be,n 0(sr0,r31) */
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#define BE_XXX_0_31 0xe3e00000 /* be 0(sr0,r31) */
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#define COPY_31_2 0x081f0242 /* copy r31,r2 */
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#define COPY_31_1 0x081f0241 /* copy r31,r1 */
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#define COPY_1_31 0x0801025f /* copy r1,r31 */
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#define LDIL_XXX_31 0x23e00000 /* ldil 0,r31 */
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#define LDSID_31_1 0x03e010a1 /* ldsid (r31),r1 */
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#define MTSP_1_SR0 0x00011820 /* mtsp r1,sr0 */
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#define ADDI_M4_31_RP 0xb7e207f9 /* addi -4,r31,rp */
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#define ADDI_M4_31_1 0xb7e107f9 /* addi -4,r31,r1 */
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#define ADDI_M8_SP_SP 0xb7de07f1 /* addi -8,sp,sp */
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#define LDW_M8SP_RP 0x4bc23ff1 /* ldw -8(sp),rp */
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#define BV_N_0_RP 0xe840c002 /* bv,n 0(rp) */
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