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powerpc: Remove function descriptors and dot symbols on new ABI 

ABIv2 doesn't have function descriptors or dot symbols. One
new thing it does add is a function global and a local entry
point, so add that to our _GLOBAL macro.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard 2014-02-04 16:07:20 +11:00
parent c1fb019477
commit 7167af7ceb
3 changed files with 26 additions and 0 deletions
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2
arch/powerpc/include/asm/ftrace.h
View File

@ -61,6 +61,7 @@ struct dyn_arch_ftrace {
#endif
#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_PPC64) && !defined(__ASSEMBLY__)
#if !defined(_CALL_ELF) || _CALL_ELF != 2
#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
{
@ -72,6 +73,7 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name
*/
return !strcmp(sym + 4, name + 3);
}
#endif
#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 && !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_FTRACE */

2
arch/powerpc/include/asm/linkage.h
View File

@ -2,6 +2,7 @@
#define _ASM_POWERPC_LINKAGE_H
#ifdef CONFIG_PPC64
#if !defined(_CALL_ELF) || _CALL_ELF != 2
#define cond_syscall(x) \
asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n" \
"\t.weak ." #x "\n\t.set ." #x ", .sys_ni_syscall\n")
@ -9,5 +10,6 @@
asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n" \
"\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
#endif
#endif
#endif /* _ASM_POWERPC_LINKAGE_H */

22
arch/powerpc/include/asm/ppc_asm.h
View File

@ -192,6 +192,26 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
#define __STK_PARAM(i) (48 + ((i)-3)*8)
#define STK_PARAM(i) __STK_PARAM(__REG_##i)
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define _GLOBAL(name) \
.section ".text"; \
.align 2 ; \
.type name,@function; \
.globl name; \
name:
#define _KPROBE(name) \
.section ".kprobes.text","a"; \
.align 2 ; \
.type name,@function; \
.globl name; \
name:
#define DOTSYM(a) a
#else
#define XGLUE(a,b) a##b
#define GLUE(a,b) XGLUE(a,b)
@ -225,6 +245,8 @@ GLUE(.,name):
#define DOTSYM(a) GLUE(.,a)
#endif
#else /* 32-bit */
#define _ENTRY(n) \