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790be1e40d
"make check" passed. ====================================================== All 34 tests behaved as expected (2 expected failures) ====================================================== Zhi-Gang Liu @ Tilera
144 lines
5.2 KiB
C
144 lines
5.2 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "_UCD_lib.h"
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#include "_UCD_internal.h"
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int
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_UCD_access_reg (unw_addr_space_t as,
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unw_regnum_t regnum, unw_word_t *valp,
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int write, void *arg)
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{
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struct UCD_info *ui = arg;
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if (write)
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{
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Debug(0, "write is not supported\n");
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return -UNW_EINVAL;
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}
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#if defined(UNW_TARGET_AARCH64)
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if (regnum < 0 || regnum >= UNW_AARCH64_FPCR)
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goto badreg;
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#elif defined(UNW_TARGET_ARM)
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if (regnum < 0 || regnum >= 16)
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goto badreg;
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#elif defined(UNW_TARGET_SH)
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if (regnum < 0 || regnum > UNW_SH_PR)
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goto badreg;
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#elif defined(UNW_TARGET_TILEGX)
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if (regnum < 0 || regnum > UNW_TILEGX_CFA)
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goto badreg;
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#else
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#if defined(UNW_TARGET_MIPS)
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static const uint8_t remap_regs[] =
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{
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[UNW_MIPS_R0] = EF_REG0,
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[UNW_MIPS_R1] = EF_REG1,
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[UNW_MIPS_R2] = EF_REG2,
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[UNW_MIPS_R3] = EF_REG3,
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[UNW_MIPS_R4] = EF_REG4,
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[UNW_MIPS_R5] = EF_REG5,
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[UNW_MIPS_R6] = EF_REG6,
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[UNW_MIPS_R7] = EF_REG7,
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[UNW_MIPS_R8] = EF_REG8,
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[UNW_MIPS_R9] = EF_REG9,
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[UNW_MIPS_R10] = EF_REG10,
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[UNW_MIPS_R11] = EF_REG11,
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[UNW_MIPS_R12] = EF_REG12,
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[UNW_MIPS_R13] = EF_REG13,
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[UNW_MIPS_R14] = EF_REG14,
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[UNW_MIPS_R15] = EF_REG15,
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[UNW_MIPS_R16] = EF_REG16,
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[UNW_MIPS_R17] = EF_REG17,
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[UNW_MIPS_R18] = EF_REG18,
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[UNW_MIPS_R19] = EF_REG19,
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[UNW_MIPS_R20] = EF_REG20,
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[UNW_MIPS_R21] = EF_REG21,
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[UNW_MIPS_R22] = EF_REG22,
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[UNW_MIPS_R23] = EF_REG23,
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[UNW_MIPS_R24] = EF_REG24,
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[UNW_MIPS_R25] = EF_REG25,
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[UNW_MIPS_R28] = EF_REG28,
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[UNW_MIPS_R29] = EF_REG29,
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[UNW_MIPS_R30] = EF_REG30,
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[UNW_MIPS_R31] = EF_REG31,
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[UNW_MIPS_PC] = EF_CP0_EPC,
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};
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#elif defined(UNW_TARGET_X86)
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static const uint8_t remap_regs[] =
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{
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/* names from libunwind-x86.h */
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[UNW_X86_EAX] = offsetof(struct user_regs_struct, eax) / sizeof(long),
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[UNW_X86_EDX] = offsetof(struct user_regs_struct, edx) / sizeof(long),
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[UNW_X86_ECX] = offsetof(struct user_regs_struct, ecx) / sizeof(long),
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[UNW_X86_EBX] = offsetof(struct user_regs_struct, ebx) / sizeof(long),
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[UNW_X86_ESI] = offsetof(struct user_regs_struct, esi) / sizeof(long),
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[UNW_X86_EDI] = offsetof(struct user_regs_struct, edi) / sizeof(long),
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[UNW_X86_EBP] = offsetof(struct user_regs_struct, ebp) / sizeof(long),
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[UNW_X86_ESP] = offsetof(struct user_regs_struct, esp) / sizeof(long),
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[UNW_X86_EIP] = offsetof(struct user_regs_struct, eip) / sizeof(long),
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[UNW_X86_EFLAGS] = offsetof(struct user_regs_struct, eflags) / sizeof(long),
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[UNW_X86_TRAPNO] = offsetof(struct user_regs_struct, orig_eax) / sizeof(long),
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};
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#elif defined(UNW_TARGET_X86_64)
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static const int8_t remap_regs[] =
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{
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[UNW_X86_64_RAX] = offsetof(struct user_regs_struct, rax) / sizeof(long),
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[UNW_X86_64_RDX] = offsetof(struct user_regs_struct, rdx) / sizeof(long),
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[UNW_X86_64_RCX] = offsetof(struct user_regs_struct, rcx) / sizeof(long),
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[UNW_X86_64_RBX] = offsetof(struct user_regs_struct, rbx) / sizeof(long),
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[UNW_X86_64_RSI] = offsetof(struct user_regs_struct, rsi) / sizeof(long),
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[UNW_X86_64_RDI] = offsetof(struct user_regs_struct, rdi) / sizeof(long),
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[UNW_X86_64_RBP] = offsetof(struct user_regs_struct, rbp) / sizeof(long),
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[UNW_X86_64_RSP] = offsetof(struct user_regs_struct, rsp) / sizeof(long),
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[UNW_X86_64_RIP] = offsetof(struct user_regs_struct, rip) / sizeof(long),
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};
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#else
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#error Port me
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#endif
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if (regnum < 0 || regnum >= (unw_regnum_t)ARRAY_SIZE(remap_regs))
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goto badreg;
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regnum = remap_regs[regnum];
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#endif
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/* pr_reg is a long[] array, but it contains struct user_regs_struct's
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* image.
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*/
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Debug(1, "pr_reg[%d]:%ld (0x%lx)\n", regnum,
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(long)ui->prstatus->pr_reg[regnum],
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(long)ui->prstatus->pr_reg[regnum]
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);
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*valp = ui->prstatus->pr_reg[regnum];
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return 0;
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badreg:
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Debug(0, "bad regnum:%d\n", regnum);
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return -UNW_EINVAL;
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}
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