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169 lines
3.6 KiB
169 lines
3.6 KiB
// SPDX-License-Identifier: GPL-2.0 |
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static int is_branch_cond(const char *cond) |
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{ |
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if (cond[0] == '\0') |
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return 1; |
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if (cond[0] == 'a' && cond[1] == '\0') |
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return 1; |
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if (cond[0] == 'c' && |
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(cond[1] == 'c' || cond[1] == 's') && |
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cond[2] == '\0') |
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return 1; |
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if (cond[0] == 'e' && |
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(cond[1] == '\0' || |
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(cond[1] == 'q' && cond[2] == '\0'))) |
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return 1; |
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if (cond[0] == 'g' && |
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(cond[1] == '\0' || |
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(cond[1] == 't' && cond[2] == '\0') || |
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(cond[1] == 'e' && cond[2] == '\0') || |
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(cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0'))) |
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return 1; |
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if (cond[0] == 'l' && |
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(cond[1] == '\0' || |
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(cond[1] == 't' && cond[2] == '\0') || |
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(cond[1] == 'u' && cond[2] == '\0') || |
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(cond[1] == 'e' && cond[2] == '\0') || |
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(cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0'))) |
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return 1; |
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if (cond[0] == 'n' && |
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(cond[1] == '\0' || |
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(cond[1] == 'e' && cond[2] == '\0') || |
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(cond[1] == 'z' && cond[2] == '\0') || |
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(cond[1] == 'e' && cond[2] == 'g' && cond[3] == '\0'))) |
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return 1; |
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if (cond[0] == 'b' && |
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cond[1] == 'p' && |
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cond[2] == 'o' && |
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cond[3] == 's' && |
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cond[4] == '\0') |
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return 1; |
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if (cond[0] == 'v' && |
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(cond[1] == 'c' || cond[1] == 's') && |
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cond[2] == '\0') |
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return 1; |
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if (cond[0] == 'b' && |
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cond[1] == 'z' && |
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cond[2] == '\0') |
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return 1; |
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return 0; |
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} |
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static int is_branch_reg_cond(const char *cond) |
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{ |
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if ((cond[0] == 'n' || cond[0] == 'l') && |
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cond[1] == 'z' && |
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cond[2] == '\0') |
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return 1; |
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if (cond[0] == 'z' && |
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cond[1] == '\0') |
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return 1; |
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if ((cond[0] == 'g' || cond[0] == 'l') && |
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cond[1] == 'e' && |
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cond[2] == 'z' && |
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cond[3] == '\0') |
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return 1; |
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if (cond[0] == 'g' && |
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cond[1] == 'z' && |
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cond[2] == '\0') |
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return 1; |
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return 0; |
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} |
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static int is_branch_float_cond(const char *cond) |
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{ |
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if (cond[0] == '\0') |
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return 1; |
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if ((cond[0] == 'a' || cond[0] == 'e' || |
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cond[0] == 'z' || cond[0] == 'g' || |
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cond[0] == 'l' || cond[0] == 'n' || |
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cond[0] == 'o' || cond[0] == 'u') && |
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cond[1] == '\0') |
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return 1; |
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if (((cond[0] == 'g' && cond[1] == 'e') || |
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(cond[0] == 'l' && (cond[1] == 'e' || |
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cond[1] == 'g')) || |
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(cond[0] == 'n' && (cond[1] == 'e' || |
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cond[1] == 'z')) || |
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(cond[0] == 'u' && (cond[1] == 'e' || |
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cond[1] == 'g' || |
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cond[1] == 'l'))) && |
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cond[2] == '\0') |
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return 1; |
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if (cond[0] == 'u' && |
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(cond[1] == 'g' || cond[1] == 'l') && |
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cond[2] == 'e' && |
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cond[3] == '\0') |
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return 1; |
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return 0; |
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} |
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static struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name) |
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{ |
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struct ins_ops *ops = NULL; |
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if (!strcmp(name, "call") || |
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!strcmp(name, "jmp") || |
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!strcmp(name, "jmpl")) { |
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ops = &call_ops; |
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} else if (!strcmp(name, "ret") || |
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!strcmp(name, "retl") || |
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!strcmp(name, "return")) { |
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ops = &ret_ops; |
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} else if (!strcmp(name, "mov")) { |
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ops = &mov_ops; |
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} else { |
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if (name[0] == 'c' && |
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(name[1] == 'w' || name[1] == 'x')) |
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name += 2; |
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if (name[0] == 'b') { |
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const char *cond = name + 1; |
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if (cond[0] == 'r') { |
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if (is_branch_reg_cond(cond + 1)) |
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ops = &jump_ops; |
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} else if (is_branch_cond(cond)) { |
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ops = &jump_ops; |
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} |
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} else if (name[0] == 'f' && name[1] == 'b') { |
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if (is_branch_float_cond(name + 2)) |
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ops = &jump_ops; |
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} |
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} |
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if (ops) |
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arch__associate_ins_ops(arch, name, ops); |
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return ops; |
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} |
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static int sparc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) |
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{ |
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if (!arch->initialized) { |
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arch->initialized = true; |
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arch->associate_instruction_ops = sparc__associate_instruction_ops; |
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arch->objdump.comment_char = '#'; |
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} |
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return 0; |
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}
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