Release 4.17 arch/powerpc/include/asm/ftrace.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_FTRACE
#define _ASM_POWERPC_FTRACE
#include <asm/types.h>
#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((unsigned long)(_mcount))
#define MCOUNT_INSN_SIZE 4
/* sizeof mcount call */
#ifdef __ASSEMBLY__
/* Based off of objdump optput from glibc */
#define MCOUNT_SAVE_FRAME \
stwu r1,-48(r1); \
stw r3, 12(r1); \
stw r4, 16(r1); \
stw r5, 20(r1); \
stw r6, 24(r1); \
mflr r3; \
lwz r4, 52(r1); \
mfcr r5; \
stw r7, 28(r1); \
stw r8, 32(r1); \
stw r9, 36(r1); \
stw r10,40(r1); \
stw r3, 44(r1); \
stw r5, 8(r1)
#define MCOUNT_RESTORE_FRAME \
lwz r6, 8(r1); \
lwz r0, 44(r1); \
lwz r3, 12(r1); \
mtctr r0; \
lwz r4, 16(r1); \
mtcr r6; \
lwz r5, 20(r1); \
lwz r6, 24(r1); \
lwz r0, 52(r1); \
lwz r7, 28(r1); \
lwz r8, 32(r1); \
mtlr r0; \
lwz r9, 36(r1); \
lwz r10,40(r1); \
addi r1, r1, 48
#else /* !__ASSEMBLY__ */
extern void _mcount(void);
#ifdef CONFIG_DYNAMIC_FTRACE
# define FTRACE_ADDR ((unsigned long)ftrace_caller)
# define FTRACE_REGS_ADDR FTRACE_ADDR
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
/* reloction of mcount call site is the same as the address */
return addr;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Steven Rostedt | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
struct dyn_arch_ftrace {
struct module *mod;
};
#endif /* CONFIG_DYNAMIC_FTRACE */
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
#define ARCH_SUPPORTS_FTRACE_OPS 1
#endif
#endif
#if defined(CONFIG_FTRACE_SYSCALLS) && !defined(__ASSEMBLY__)
/*
* Some syscall entry functions on powerpc start with "ppc_" (fork and clone,
* for instance) or ppc32_/ppc64_. We should also match the sys_ variant with
* those.
*/
#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
#ifdef PPC64_ELF_ABI_v1
static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
{
/* We need to skip past the initial dot, and the __se_sys alias */
return !strcmp(sym + 1, name) ||
(!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name)) ||
(!strncmp(sym, ".ppc_", 5) && !strcmp(sym + 5, name + 4)) ||
(!strncmp(sym, ".ppc32_", 7) && !strcmp(sym + 7, name + 4)) ||
(!strncmp(sym, ".ppc64_", 7) && !strcmp(sym + 7, name + 4));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Naveen N. Rao | 97 | 78.86% | 2 | 66.67% |
| Ian Munsie | 26 | 21.14% | 1 | 33.33% |
| Total | 123 | 100.00% | 3 | 100.00% |
#else
static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
{
return !strcmp(sym, name) ||
(!strncmp(sym, "__se_sys", 8) && !strcmp(sym + 5, name)) ||
(!strncmp(sym, "ppc_", 4) && !strcmp(sym + 4, name + 4)) ||
(!strncmp(sym, "ppc32_", 6) && !strcmp(sym + 6, name + 4)) ||
(!strncmp(sym, "ppc64_", 6) && !strcmp(sym + 6, name + 4));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Naveen N. Rao | 118 | 98.33% | 1 | 50.00% |
| Ian Munsie | 2 | 1.67% | 1 | 50.00% |
| Total | 120 | 100.00% | 2 | 100.00% |
#endif
#endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_FTRACE */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Naveen N. Rao | 221 | 59.41% | 2 | 14.29% |
| Steven Rostedt | 65 | 17.47% | 5 | 35.71% |
| Ian Munsie | 45 | 12.10% | 1 | 7.14% |
| Torsten Duwe | 17 | 4.57% | 1 | 7.14% |
| Abhishek Sagar | 16 | 4.30% | 1 | 7.14% |
| Michael Ellerman | 4 | 1.08% | 1 | 7.14% |
| Anton Blanchard | 2 | 0.54% | 1 | 7.14% |
| Greg Kroah-Hartman | 1 | 0.27% | 1 | 7.14% |
| Minfei Huang | 1 | 0.27% | 1 | 7.14% |
| Total | 372 | 100.00% | 14 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.