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authorAl Viro <viro@zeniv.linux.org.uk>2013-01-21 17:16:07 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-03-03 22:55:19 -0500
commite1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea (patch)
tree2431edf19caecce6aad82b4ee4ed2abe45e542e3 /arch
parent4a0fd5bf0fd0795af8f1be3b261f5cf146a4cb9b (diff)
downloadlinux-linaro-stable-e1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea.tar.gz
consolidate cond_syscall and SYSCALL_ALIAS declarations
take them to asm/linkage.h, with default in linux/linkage.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/include/asm/linkage.h4
-rw-r--r--arch/alpha/include/asm/unistd.h12
-rw-r--r--arch/arm/include/asm/unistd.h8
-rw-r--r--arch/avr32/include/asm/unistd.h8
-rw-r--r--arch/blackfin/include/asm/unistd.h8
-rw-r--r--arch/cris/include/asm/unistd.h8
-rw-r--r--arch/frv/include/asm/unistd.h10
-rw-r--r--arch/h8300/include/asm/linkage.h2
-rw-r--r--arch/h8300/include/asm/unistd.h7
-rw-r--r--arch/ia64/include/asm/linkage.h4
-rw-r--r--arch/ia64/include/asm/unistd.h10
-rw-r--r--arch/m32r/include/asm/unistd.h10
-rw-r--r--arch/m68k/include/asm/unistd.h8
-rw-r--r--arch/microblaze/include/asm/unistd.h8
-rw-r--r--arch/mips/include/asm/linkage.h3
-rw-r--r--arch/mips/include/asm/unistd.h8
-rw-r--r--arch/mn10300/include/asm/unistd.h10
-rw-r--r--arch/parisc/include/asm/unistd.h8
-rw-r--r--arch/powerpc/include/asm/linkage.h13
-rw-r--r--arch/powerpc/include/asm/unistd.h6
-rw-r--r--arch/powerpc/include/uapi/asm/linkage.h6
-rw-r--r--arch/s390/include/asm/unistd.h8
-rw-r--r--arch/sh/include/asm/unistd.h8
-rw-r--r--arch/sparc/include/asm/unistd.h8
-rw-r--r--arch/x86/include/asm/unistd.h8
-rw-r--r--arch/xtensa/include/asm/unistd.h8
26 files changed, 23 insertions, 178 deletions
diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h
index 291c2d01c44f..7cfd06e8c935 100644
--- a/arch/alpha/include/asm/linkage.h
+++ b/arch/alpha/include/asm/linkage.h
@@ -1,6 +1,8 @@
#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
-/* Nothing to see here... */
+#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name) \
+ asm ( #alias " = " #name "\n\t.globl " #alias)
#endif
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 6d6fe7ab5473..43baee17acdf 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -18,16 +18,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/* "Conditional" syscalls. What we want is
-
- __attribute__((weak,alias("sys_ni_syscall")))
-
- but that raises the problem of what type to give the symbol. If we use
- a prototype, it'll conflict with the definition given in this file and
- others. If we use __typeof, we discover that not all symbols actually
- have declarations. If we use no prototype, then we get warnings from
- -Wstrict-prototypes. Ho hum. */
-
-#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
-
#endif /* _ALPHA_UNISTD_H */
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index e4ddfb39ca34..141baa3f9a72 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -44,14 +44,6 @@
#define __ARCH_WANT_SYS_CLONE
/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
-/*
* Unimplemented (or alternatively implemented) syscalls
*/
#define __IGNORE_fadvise64_64
diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h
index dc4d5a931112..c1eb080e45fe 100644
--- a/arch/avr32/include/asm/unistd.h
+++ b/arch/avr32/include/asm/unistd.h
@@ -41,12 +41,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-
#endif /* __ASM_AVR32_UNISTD_H */
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 04e83ea8d5cc..c35414bdf7bd 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -20,12 +20,4 @@
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_VFORK
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t_" #x "\n\t.set\t_" #x ",_sys_ni_syscall");
-
#endif /* __ASM_BFIN_UNISTD_H */
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index be57a988bfb9..0ff3f6889842 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -34,12 +34,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_CRIS_UNISTD_H_ */
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index 4cfcc7bba25a..70ec7293dce7 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -31,14 +31,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif
-
#endif /* _ASM_UNISTD_H_ */
diff --git a/arch/h8300/include/asm/linkage.h b/arch/h8300/include/asm/linkage.h
index 6f4df7d46180..1d81604fb0ad 100644
--- a/arch/h8300/include/asm/linkage.h
+++ b/arch/h8300/include/asm/linkage.h
@@ -2,7 +2,5 @@
#define _H8300_LINKAGE_H
#undef SYMBOL_NAME_LABEL
-#undef SYMBOL_NAME
#define SYMBOL_NAME_LABEL(_name_) _##_name_##:
-#define SYMBOL_NAME(_name_) _##_name_
#endif
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
index 6721856d841b..ab671ecf5196 100644
--- a/arch/h8300/include/asm/unistd.h
+++ b/arch/h8300/include/asm/unistd.h
@@ -33,11 +33,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- */
-#define cond_syscall(name) \
- asm (".weak\t_" #name "\n" \
- ".set\t_" #name ",_sys_ni_syscall");
-
#endif /* _ASM_H8300_UNISTD_H_ */
diff --git a/arch/ia64/include/asm/linkage.h b/arch/ia64/include/asm/linkage.h
index ef22a45c1890..787575701f1c 100644
--- a/arch/ia64/include/asm/linkage.h
+++ b/arch/ia64/include/asm/linkage.h
@@ -11,4 +11,8 @@
#endif
+#define cond_syscall(x) asm(".weak\t" #x "#\n" #x "#\t=\tsys_ni_syscall#")
+#define SYSCALL_ALIAS(alias, name) \
+ asm ( #alias "# = " #name "#\n\t.globl " #alias "#")
+
#endif
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index 096373800f73..afd45e0d552e 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -46,15 +46,5 @@ asmlinkage unsigned long sys_mmap2(
struct pt_regs;
asmlinkage long sys_ia64_pipe(void);
-/*
- * "Conditional" syscalls
- *
- * Note, this macro can only be used in the file which defines sys_ni_syscall, i.e., in
- * kernel/sys_ni.c. This version causes warnings because the declaration isn't a
- * proper prototype, but we can't use __typeof__ either, because not all cond_syscall()
- * declarations have prototypes at the moment.
- */
-#define cond_syscall(x) asmlinkage long x (void) __attribute__((weak,alias("sys_ni_syscall")))
-
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_UNISTD_H */
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 555629b05267..59db80193454 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -48,14 +48,4 @@
#define __IGNORE_getresgid
#define __IGNORE_chown
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif
-
#endif /* _ASM_M32R_UNISTD_H */
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 6cd92671ca5e..014f288fc813 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -32,12 +32,4 @@
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_M68K_UNISTD_H_ */
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index b3778391d9cc..6dece2d002dc 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -37,13 +37,5 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_FORK
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-
#endif /* __ASSEMBLY__ */
#endif /* _ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/mips/include/asm/linkage.h b/arch/mips/include/asm/linkage.h
index e9a940d1b0c6..2767dda9e309 100644
--- a/arch/mips/include/asm/linkage.h
+++ b/arch/mips/include/asm/linkage.h
@@ -6,5 +6,8 @@
#endif
#define __weak __attribute__((weak))
+#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name) \
+ asm ( #alias " = " #name "\n\t.globl " #alias)
#endif
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 64f661e32879..63c9c886173a 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -63,12 +63,4 @@
#endif /* !__ASSEMBLY__ */
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall")
-
#endif /* _ASM_UNISTD_H */
diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h
index 7f9d9adfa51e..9d4e2d1ef90e 100644
--- a/arch/mn10300/include/asm/unistd.h
+++ b/arch/mn10300/include/asm/unistd.h
@@ -45,14 +45,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-#endif
-
#endif /* _ASM_UNISTD_H */
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ae9a46cbfd92..74d835820ee7 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -170,12 +170,4 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
#undef STR
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_PARISC_UNISTD_H_ */
diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h
new file mode 100644
index 000000000000..b36f650a13ff
--- /dev/null
+++ b/arch/powerpc/include/asm/linkage.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_POWERPC_LINKAGE_H
+#define _ASM_POWERPC_LINKAGE_H
+
+#ifdef CONFIG_PPC64
+#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")
+#define SYSCALL_ALIAS(alias, name) \
+ asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n" \
+ "\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
+#endif
+
+#endif /* _ASM_POWERPC_LINKAGE_H */
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index f25b5c45c435..91586d979c99 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -56,11 +56,5 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- */
-#define cond_syscall(x) \
- asmlinkage long x (void) __attribute__((weak,alias("sys_ni_syscall")))
-
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/powerpc/include/uapi/asm/linkage.h b/arch/powerpc/include/uapi/asm/linkage.h
deleted file mode 100644
index e1c4ac1cc4ba..000000000000
--- a/arch/powerpc/include/uapi/asm/linkage.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_POWERPC_LINKAGE_H
-#define _ASM_POWERPC_LINKAGE_H
-
-/* Nothing to see here... */
-
-#endif /* _ASM_POWERPC_LINKAGE_H */
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index a6667a952969..651886353551 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -54,12 +54,4 @@
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_S390_UNISTD_H_ */
diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h
index 5e90fa2b7eed..e77816c4b9bc 100644
--- a/arch/sh/include/asm/unistd.h
+++ b/arch/sh/include/asm/unistd.h
@@ -30,12 +30,4 @@
# define __ARCH_WANT_SYS_VFORK
# define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#include <uapi/asm/unistd.h>
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index 5356810bd7e7..dfa53fdd5cbc 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -45,12 +45,4 @@
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _SPARC_UNISTD_H */
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 3d5df1c4447f..c2a48139c340 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -50,12 +50,4 @@
# define __ARCH_WANT_SYS_VFORK
# define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#endif /* _ASM_X86_UNISTD_H */
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index c38834de9ac7..cb4c2ce8d447 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -4,14 +4,6 @@
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
-
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_SYS_LLSEEK