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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| ifndef NO_DWARF | ||
| PERF_HAVE_DWARF_REGS := 1 | ||
| LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o | ||
| endif |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,88 @@ | ||
| /* | ||
| * Mapping of DWARF debug register numbers into register names. | ||
| * | ||
| * Copyright (C) 2010 Ian Munsie, IBM Corporation. | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation; either version | ||
| * 2 of the License, or (at your option) any later version. | ||
| */ | ||
|
|
||
| #include <libio.h> | ||
| #include <dwarf-regs.h> | ||
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|
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| struct pt_regs_dwarfnum { | ||
| const char *name; | ||
| unsigned int dwarfnum; | ||
| }; | ||
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| #define STR(s) #s | ||
| #define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num} | ||
| #define GPR_DWARFNUM_NAME(num) \ | ||
| {.name = STR(%gpr##num), .dwarfnum = num} | ||
| #define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} | ||
|
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| /* | ||
| * Reference: | ||
| * http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html | ||
| */ | ||
| static const struct pt_regs_dwarfnum regdwarfnum_table[] = { | ||
| GPR_DWARFNUM_NAME(0), | ||
| GPR_DWARFNUM_NAME(1), | ||
| GPR_DWARFNUM_NAME(2), | ||
| GPR_DWARFNUM_NAME(3), | ||
| GPR_DWARFNUM_NAME(4), | ||
| GPR_DWARFNUM_NAME(5), | ||
| GPR_DWARFNUM_NAME(6), | ||
| GPR_DWARFNUM_NAME(7), | ||
| GPR_DWARFNUM_NAME(8), | ||
| GPR_DWARFNUM_NAME(9), | ||
| GPR_DWARFNUM_NAME(10), | ||
| GPR_DWARFNUM_NAME(11), | ||
| GPR_DWARFNUM_NAME(12), | ||
| GPR_DWARFNUM_NAME(13), | ||
| GPR_DWARFNUM_NAME(14), | ||
| GPR_DWARFNUM_NAME(15), | ||
| GPR_DWARFNUM_NAME(16), | ||
| GPR_DWARFNUM_NAME(17), | ||
| GPR_DWARFNUM_NAME(18), | ||
| GPR_DWARFNUM_NAME(19), | ||
| GPR_DWARFNUM_NAME(20), | ||
| GPR_DWARFNUM_NAME(21), | ||
| GPR_DWARFNUM_NAME(22), | ||
| GPR_DWARFNUM_NAME(23), | ||
| GPR_DWARFNUM_NAME(24), | ||
| GPR_DWARFNUM_NAME(25), | ||
| GPR_DWARFNUM_NAME(26), | ||
| GPR_DWARFNUM_NAME(27), | ||
| GPR_DWARFNUM_NAME(28), | ||
| GPR_DWARFNUM_NAME(29), | ||
| GPR_DWARFNUM_NAME(30), | ||
| GPR_DWARFNUM_NAME(31), | ||
| REG_DWARFNUM_NAME("%msr", 66), | ||
| REG_DWARFNUM_NAME("%ctr", 109), | ||
| REG_DWARFNUM_NAME("%link", 108), | ||
| REG_DWARFNUM_NAME("%xer", 101), | ||
| REG_DWARFNUM_NAME("%dar", 119), | ||
| REG_DWARFNUM_NAME("%dsisr", 118), | ||
| REG_DWARFNUM_END, | ||
| }; | ||
|
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| /** | ||
| * get_arch_regstr() - lookup register name from it's DWARF register number | ||
| * @n: the DWARF register number | ||
| * | ||
| * get_arch_regstr() returns the name of the register in struct | ||
| * regdwarfnum_table from it's DWARF register number. If the register is not | ||
| * found in the table, this returns NULL; | ||
| */ | ||
| const char *get_arch_regstr(unsigned int n) | ||
| { | ||
| const struct pt_regs_dwarfnum *roff; | ||
| for (roff = regdwarfnum_table; roff->name != NULL; roff++) | ||
| if (roff->dwarfnum == n) | ||
| return roff->name; | ||
| return NULL; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| ifndef NO_DWARF | ||
| PERF_HAVE_DWARF_REGS := 1 | ||
| LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o | ||
| endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| /* | ||
| * dwarf-regs.c : Mapping of DWARF debug register numbers into register names. | ||
| * Extracted from probe-finder.c | ||
| * | ||
| * Written by Masami Hiramatsu <mhiramat@redhat.com> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
| * | ||
| */ | ||
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| #include <libio.h> | ||
| #include <dwarf-regs.h> | ||
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| /* | ||
| * Generic dwarf analysis helpers | ||
| */ | ||
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| #define X86_32_MAX_REGS 8 | ||
| const char *x86_32_regs_table[X86_32_MAX_REGS] = { | ||
| "%ax", | ||
| "%cx", | ||
| "%dx", | ||
| "%bx", | ||
| "$stack", /* Stack address instead of %sp */ | ||
| "%bp", | ||
| "%si", | ||
| "%di", | ||
| }; | ||
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| #define X86_64_MAX_REGS 16 | ||
| const char *x86_64_regs_table[X86_64_MAX_REGS] = { | ||
| "%ax", | ||
| "%dx", | ||
| "%cx", | ||
| "%bx", | ||
| "%si", | ||
| "%di", | ||
| "%bp", | ||
| "%sp", | ||
| "%r8", | ||
| "%r9", | ||
| "%r10", | ||
| "%r11", | ||
| "%r12", | ||
| "%r13", | ||
| "%r14", | ||
| "%r15", | ||
| }; | ||
|
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| /* TODO: switching by dwarf address size */ | ||
| #ifdef __x86_64__ | ||
| #define ARCH_MAX_REGS X86_64_MAX_REGS | ||
| #define arch_regs_table x86_64_regs_table | ||
| #else | ||
| #define ARCH_MAX_REGS X86_32_MAX_REGS | ||
| #define arch_regs_table x86_32_regs_table | ||
| #endif | ||
|
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| /* Return architecture dependent register string (for kprobe-tracer) */ | ||
| const char *get_arch_regstr(unsigned int n) | ||
| { | ||
| return (n <= ARCH_MAX_REGS) ? arch_regs_table[n] : NULL; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| #ifndef _PERF_DWARF_REGS_H_ | ||
| #define _PERF_DWARF_REGS_H_ | ||
|
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| #ifdef DWARF_SUPPORT | ||
| const char *get_arch_regstr(unsigned int n); | ||
| #endif | ||
|
|
||
| #endif |
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