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861e10be08
Including libio.h causes build failures on uClibc systems (which lack libio.h). It appears that libio.h was only included to pull in a definition for NULL, so it has been replaced by stddef.h. On powerpc, libio.h was conditionally included, but could be removed completely as it is unneeded. Also, the included of stdlib.h was changed to stddef.h (as again, only NULL is needed). Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1363300074-26288-1-git-send-email-cody@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
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* dwarf-regs.c : Mapping of DWARF debug register numbers into register names.
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* Extracted from probe-finder.c
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*
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* Written by Masami Hiramatsu <mhiramat@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include <stddef.h>
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#include <dwarf-regs.h>
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/*
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* Generic dwarf analysis helpers
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*/
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#define X86_32_MAX_REGS 8
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const char *x86_32_regs_table[X86_32_MAX_REGS] = {
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"%ax",
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"%cx",
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"%dx",
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"%bx",
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"$stack", /* Stack address instead of %sp */
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"%bp",
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"%si",
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"%di",
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};
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#define X86_64_MAX_REGS 16
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const char *x86_64_regs_table[X86_64_MAX_REGS] = {
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"%ax",
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"%dx",
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"%cx",
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"%bx",
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"%si",
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"%di",
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"%bp",
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"%sp",
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"%r8",
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"%r9",
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"%r10",
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"%r11",
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"%r12",
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"%r13",
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"%r14",
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"%r15",
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};
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/* TODO: switching by dwarf address size */
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#ifdef __x86_64__
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#define ARCH_MAX_REGS X86_64_MAX_REGS
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#define arch_regs_table x86_64_regs_table
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#else
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#define ARCH_MAX_REGS X86_32_MAX_REGS
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#define arch_regs_table x86_32_regs_table
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#endif
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/* Return architecture dependent register string (for kprobe-tracer) */
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const char *get_arch_regstr(unsigned int n)
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{
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return (n <= ARCH_MAX_REGS) ? arch_regs_table[n] : NULL;
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}
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