dd38e70964
* Add copyright and license to all librz/include/*.h files in dep5
* SPDX headers for most include files except bin/arch/debug
* Add SPDX headers in asm/arch/{8051,arm}
* Add SPDX header for shlr/gdb include files
* Add SPDX header for shlr/bochs include files
* Add SPDX header for librz/reg
* Add SPDX header for librz/debug/p/native/xnu
* Add SPDX header for librz/debug/p/native/windows
* Add SPDX header for librz/debug/p/native/reg include files
* Add SPDX header for librz/debug/p/native/maps include files
* Add SPDX header for librz/debug/p/native/linux include files
126 lines
4 KiB
C
126 lines
4 KiB
C
// SPDX-FileCopyrightText: 2020 pancake <pancake@nopcode.org>
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// SPDX-License-Identifier: LGPL-3.0-only
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#if 0
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https://www.kernel.org/doc/Documentation/s390/Debugging390.txt
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s/390 & z/Architecture Register usage
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=====================================
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r0 used by syscalls/assembly call-clobbered
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r1 used by syscalls/assembly call-clobbered
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r2 argument 0 / return value 0 call-clobbered
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r3 argument 1 / return value 1 (if long long) call-clobbered
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r4 argument 2 call-clobbered
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r5 argument 3 call-clobbered
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r6 argument 4 saved
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r7 pointer-to arguments 5 to ... saved
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r8 this & that saved
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r9 this & that saved
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r10 static-chain ( if nested function ) saved
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r11 frame-pointer ( if function used alloca ) saved
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r12 got-pointer saved
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r13 base-pointer saved
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r14 return-address saved
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r15 stack-pointer saved
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$pc
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$sp
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f0 argument 0 / return value ( float/double ) call-clobbered
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f2 argument 1 call-clobbered
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f4 z/Architecture argument 2 saved
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f6 z/Architecture argument 3 saved
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The remaining floating points
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f1,f3,f5 f7-f15 are call-clobbered.
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The current architectures have the following registers.
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16 General propose registers, 32 bit on s/390 and 64 bit on z/Architecture,
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r0-r15 (or gpr0-gpr15), used for arithmetic and addressing.
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16 Control registers, 32 bit on s/390 and 64 bit on z/Architecture, cr0-cr15,
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kernel usage only, used for memory management, interrupt control, debugging
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control etc.
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16 Access registers (ar0-ar15), 32 bit on both s/390 and z/Architecture,
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normally not used by normal programs but potentially could be used as
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temporary storage. These registers have a 1:1 association with general
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purpose registers and are designed to be used in the so-called access
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register mode to select different address spaces.
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Access register 0 (and access register 1 on z/Architecture, which needs a
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64 bit pointer) is currently used by the pthread library as a pointer to
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the current running threads private area.
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16 64 bit floating point registers (fp0-fp15 ) IEEE & HFP floating
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point format compliant on G5 upwards & a Floating point control reg (FPC)
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4 64 bit registers (fp0,fp2,fp4 & fp6) HFP only on older machines.
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Note:
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Linux (currently) always uses IEEE & emulates G5 IEEE format on older machines,
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( provided the kernel is configured for this ).
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#endif
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return strdup(
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"=PC pc\n"
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"=LR r14\n"
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"=SP r15\n"
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"=BP r13\n"
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"=R0 r2\n"
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"=A0 r2\n"
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"=A1 r3\n"
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"=A2 r4\n"
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"=A3 r5\n"
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"=SN r0\n"
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"gpr r0 .32 0 0\n"
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"gpr r1 .32 4 0\n"
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"gpr r2 .32 8 0\n"
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"gpr r3 .32 12 0\n"
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"gpr r4 .32 16 0\n"
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"gpr r5 .32 20 0\n"
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"gpr r6 .32 24 0\n"
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"gpr r7 .32 28 0\n"
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"gpr r8 .32 32 0\n"
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"gpr r9 .32 36 0\n"
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"gpr r10 .32 40 0\n"
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"gpr r11 .32 44 0\n"
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"gpr r12 .32 48 0\n"
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"gpr r13 .32 52 0\n"
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"gpr r14 .32 56 0\n"
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"gpr r15 .32 60 0\n"
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"gpr pc .32 64 0\n"
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// kernel only
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"gpr cr0 .32 68 0\n"
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"gpr cr1 .32 72 0\n"
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"gpr cr2 .32 76 0\n"
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"gpr cr3 .32 80 0\n"
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"gpr cr4 .32 84 0\n"
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"gpr cr5 .32 88 0\n"
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"gpr cr6 .32 92 0\n"
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"gpr cr7 .32 96 0\n"
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"gpr cr8 .32 100 0\n"
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"gpr cr9 .32 104 0\n"
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"gpr cr10 .32 108 0\n"
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"gpr cr11 .32 112 0\n"
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"gpr cr12 .32 116 0\n"
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"gpr cr13 .32 120 0\n"
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"gpr cr14 .32 124 0\n"
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"gpr cr15 .32 128 0\n"
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// used for tls cache, used for threading
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"gpr ar0 .32 132 0\n"
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"gpr ar1 .32 136 0\n"
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"gpr ar2 .32 140 0\n"
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"gpr ar3 .32 144 0\n"
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"gpr ar4 .32 148 0\n"
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"gpr ar5 .32 152 0\n"
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"gpr ar6 .32 156 0\n"
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"gpr ar7 .32 160 0\n"
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"gpr ar8 .32 164 0\n"
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"gpr ar9 .32 170 0\n"
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"gpr ar10 .32 174 0\n"
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"gpr ar11 .32 178 0\n"
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"gpr ar12 .32 182 0\n"
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"gpr ar13 .32 186 0\n"
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"gpr ar14 .32 190 0\n"
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"gpr ar15 .32 194 0\n"
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);
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