Message ID | 20200407140229.16297-1-adhemerval.zanella@linaro.org |
---|---|
State | New |
Headers | show |
Series | i686: Add INTERNAL_SYSCALL_NCS 6 argument support | expand |
Ping. On 07/04/2020 11:02, Adhemerval Zanella wrote: > It is required for i686 BZ#12683 support when building with -Os > or -fno-omit-frame-pointer on some gcc versions. It is not used > on current code. > > Check on i686-linux-gnu. > --- > sysdeps/unix/sysv/linux/i386/sysdep.h | 79 +++++++++++++++++---------- > 1 file changed, 49 insertions(+), 30 deletions(-) > > diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h > index f6847a67e3..bfb5de3b45 100644 > --- a/sysdeps/unix/sysv/linux/i386/sysdep.h > +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h > @@ -311,11 +311,27 @@ struct libc_do_syscall_args > INTERNAL_SYSCALL_MAIN_INLINE(name, 4, args) > #define INTERNAL_SYSCALL_MAIN_5(name, args...) \ > INTERNAL_SYSCALL_MAIN_INLINE(name, 5, args) > + > +#define INTERNAL_SYSCALL_MAIN_NCS_0(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 0, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_1(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 1, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_2(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 2, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_3(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 3, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_4(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 4, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_5(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 5, args) > + > /* Each object using 6-argument inline syscalls must include a > definition of __libc_do_syscall. */ > #ifdef OPTIMIZE_FOR_GCC_5 > # define INTERNAL_SYSCALL_MAIN_6(name, args...) \ > INTERNAL_SYSCALL_MAIN_INLINE(name, 6, args) > +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 6, args) > #else /* GCC 5 */ > # define INTERNAL_SYSCALL_MAIN_6(name, arg1, arg2, arg3, \ > arg4, arg5, arg6) \ > @@ -331,12 +347,33 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "i" (__NR_##name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ > : "memory", "cc") > +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, arg1, arg2, arg3, \ > + arg4, arg5, arg6) \ > + struct libc_do_syscall_args _xv = \ > + { \ > + (int) (arg1), \ > + (int) (arg5), \ > + (int) (arg6) \ > + }; \ > + asm volatile ( \ > + "movl %1, %%eax\n\t" \ > + "call __libc_do_syscall" \ > + : "=a" (resultvar) \ > + : "a" (name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ > + : "memory", "cc") > #endif /* GCC 5 */ > + > #define INTERNAL_SYSCALL(name, nr, args...) \ > ({ \ > register unsigned int resultvar; \ > INTERNAL_SYSCALL_MAIN_##nr (name, args); \ > (int) resultvar; }) > +#define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > + ({ \ > + register unsigned int resultvar; \ > + INTERNAL_SYSCALL_MAIN_NCS_##nr (name, args); \ > + (int) resultvar; }) > + > #if I386_USE_SYSENTER > # ifdef OPTIMIZE_FOR_GCC_5 > # ifdef PIC > @@ -347,16 +384,13 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "a" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ > ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "call *%%gs:%P2" \ > : "=a" (resultvar) \ > : "a" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ > - ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + ASMARGS_##nr(args) : "memory", "cc") > # else > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > LOADREGS_##nr(args) \ > @@ -364,15 +398,12 @@ struct libc_do_syscall_args > "call *_dl_sysinfo" \ > : "=a" (resultvar) \ > : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "call *_dl_sysinfo" \ > : "=a" (resultvar) \ > - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") > # endif > # else /* GCC 5 */ > # ifdef PIC > @@ -386,9 +417,7 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "i" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ > ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > @@ -396,8 +425,7 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "0" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ > - ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + ASMFMT_##nr(args) : "memory", "cc") > # else > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > EXTRAVAR_##nr \ > @@ -408,17 +436,14 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > "call *_dl_sysinfo\n\t" \ > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") > # endif > # endif /* GCC 5 */ > #else > @@ -429,15 +454,12 @@ struct libc_do_syscall_args > "int $0x80" \ > : "=a" (resultvar) \ > : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "int $0x80" \ > : "=a" (resultvar) \ > - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") > # else /* GCC 5 */ > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > EXTRAVAR_##nr \ > @@ -448,17 +470,14 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > "int $0x80\n\t" \ > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") > # endif /* GCC 5 */ > #endif > >
On Tue, Apr 7, 2020 at 7:02 AM Adhemerval Zanella via Libc-alpha <libc-alpha@sourceware.org> wrote: > > It is required for i686 BZ#12683 support when building with -Os > or -fno-omit-frame-pointer on some gcc versions. It is not used > on current code. > > Check on i686-linux-gnu. > --- > sysdeps/unix/sysv/linux/i386/sysdep.h | 79 +++++++++++++++++---------- > 1 file changed, 49 insertions(+), 30 deletions(-) > > diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h > index f6847a67e3..bfb5de3b45 100644 > --- a/sysdeps/unix/sysv/linux/i386/sysdep.h > +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h > @@ -311,11 +311,27 @@ struct libc_do_syscall_args > INTERNAL_SYSCALL_MAIN_INLINE(name, 4, args) > #define INTERNAL_SYSCALL_MAIN_5(name, args...) \ > INTERNAL_SYSCALL_MAIN_INLINE(name, 5, args) > + > +#define INTERNAL_SYSCALL_MAIN_NCS_0(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 0, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_1(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 1, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_2(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 2, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_3(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 3, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_4(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 4, args) > +#define INTERNAL_SYSCALL_MAIN_NCS_5(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 5, args) > + > /* Each object using 6-argument inline syscalls must include a > definition of __libc_do_syscall. */ > #ifdef OPTIMIZE_FOR_GCC_5 > # define INTERNAL_SYSCALL_MAIN_6(name, args...) \ > INTERNAL_SYSCALL_MAIN_INLINE(name, 6, args) > +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, args...) \ > + INTERNAL_SYSCALL_MAIN_NCS(name, 6, args) > #else /* GCC 5 */ > # define INTERNAL_SYSCALL_MAIN_6(name, arg1, arg2, arg3, \ > arg4, arg5, arg6) \ > @@ -331,12 +347,33 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "i" (__NR_##name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ > : "memory", "cc") > +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, arg1, arg2, arg3, \ > + arg4, arg5, arg6) \ > + struct libc_do_syscall_args _xv = \ > + { \ > + (int) (arg1), \ > + (int) (arg5), \ > + (int) (arg6) \ > + }; \ > + asm volatile ( \ > + "movl %1, %%eax\n\t" \ > + "call __libc_do_syscall" \ > + : "=a" (resultvar) \ > + : "a" (name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ > + : "memory", "cc") > #endif /* GCC 5 */ > + > #define INTERNAL_SYSCALL(name, nr, args...) \ > ({ \ > register unsigned int resultvar; \ > INTERNAL_SYSCALL_MAIN_##nr (name, args); \ > (int) resultvar; }) > +#define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > + ({ \ > + register unsigned int resultvar; \ > + INTERNAL_SYSCALL_MAIN_NCS_##nr (name, args); \ > + (int) resultvar; }) > + > #if I386_USE_SYSENTER > # ifdef OPTIMIZE_FOR_GCC_5 > # ifdef PIC > @@ -347,16 +384,13 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "a" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ > ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "call *%%gs:%P2" \ > : "=a" (resultvar) \ > : "a" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ > - ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + ASMARGS_##nr(args) : "memory", "cc") > # else > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > LOADREGS_##nr(args) \ > @@ -364,15 +398,12 @@ struct libc_do_syscall_args > "call *_dl_sysinfo" \ > : "=a" (resultvar) \ > : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "call *_dl_sysinfo" \ > : "=a" (resultvar) \ > - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") > # endif > # else /* GCC 5 */ > # ifdef PIC > @@ -386,9 +417,7 @@ struct libc_do_syscall_args > : "=a" (resultvar) \ > : "i" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ > ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > @@ -396,8 +425,7 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "0" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ > - ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + ASMFMT_##nr(args) : "memory", "cc") > # else > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > EXTRAVAR_##nr \ > @@ -408,17 +436,14 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > "call *_dl_sysinfo\n\t" \ > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") > # endif > # endif /* GCC 5 */ > #else > @@ -429,15 +454,12 @@ struct libc_do_syscall_args > "int $0x80" \ > : "=a" (resultvar) \ > : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > LOADREGS_##nr(args) \ > asm volatile ( \ > "int $0x80" \ > : "=a" (resultvar) \ > - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") > # else /* GCC 5 */ > # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ > EXTRAVAR_##nr \ > @@ -448,17 +470,14 @@ struct libc_do_syscall_args > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") > -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ > - ({ \ > - register unsigned int resultvar; \ > +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ > EXTRAVAR_##nr \ > asm volatile ( \ > LOADARGS_##nr \ > "int $0x80\n\t" \ > RESTOREARGS_##nr \ > : "=a" (resultvar) \ > - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ > - (int) resultvar; }) > + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") > # endif /* GCC 5 */ > #endif > > -- > 2.17.1 > LGTM. Thanks.
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h index f6847a67e3..bfb5de3b45 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -311,11 +311,27 @@ struct libc_do_syscall_args INTERNAL_SYSCALL_MAIN_INLINE(name, 4, args) #define INTERNAL_SYSCALL_MAIN_5(name, args...) \ INTERNAL_SYSCALL_MAIN_INLINE(name, 5, args) + +#define INTERNAL_SYSCALL_MAIN_NCS_0(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 0, args) +#define INTERNAL_SYSCALL_MAIN_NCS_1(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 1, args) +#define INTERNAL_SYSCALL_MAIN_NCS_2(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 2, args) +#define INTERNAL_SYSCALL_MAIN_NCS_3(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 3, args) +#define INTERNAL_SYSCALL_MAIN_NCS_4(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 4, args) +#define INTERNAL_SYSCALL_MAIN_NCS_5(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 5, args) + /* Each object using 6-argument inline syscalls must include a definition of __libc_do_syscall. */ #ifdef OPTIMIZE_FOR_GCC_5 # define INTERNAL_SYSCALL_MAIN_6(name, args...) \ INTERNAL_SYSCALL_MAIN_INLINE(name, 6, args) +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, args...) \ + INTERNAL_SYSCALL_MAIN_NCS(name, 6, args) #else /* GCC 5 */ # define INTERNAL_SYSCALL_MAIN_6(name, arg1, arg2, arg3, \ arg4, arg5, arg6) \ @@ -331,12 +347,33 @@ struct libc_do_syscall_args : "=a" (resultvar) \ : "i" (__NR_##name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ : "memory", "cc") +# define INTERNAL_SYSCALL_MAIN_NCS_6(name, arg1, arg2, arg3, \ + arg4, arg5, arg6) \ + struct libc_do_syscall_args _xv = \ + { \ + (int) (arg1), \ + (int) (arg5), \ + (int) (arg6) \ + }; \ + asm volatile ( \ + "movl %1, %%eax\n\t" \ + "call __libc_do_syscall" \ + : "=a" (resultvar) \ + : "a" (name), "c" (arg2), "d" (arg3), "S" (arg4), "D" (&_xv) \ + : "memory", "cc") #endif /* GCC 5 */ + #define INTERNAL_SYSCALL(name, nr, args...) \ ({ \ register unsigned int resultvar; \ INTERNAL_SYSCALL_MAIN_##nr (name, args); \ (int) resultvar; }) +#define INTERNAL_SYSCALL_NCS(name, nr, args...) \ + ({ \ + register unsigned int resultvar; \ + INTERNAL_SYSCALL_MAIN_NCS_##nr (name, args); \ + (int) resultvar; }) + #if I386_USE_SYSENTER # ifdef OPTIMIZE_FOR_GCC_5 # ifdef PIC @@ -347,16 +384,13 @@ struct libc_do_syscall_args : "=a" (resultvar) \ : "a" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ ASMARGS_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ LOADREGS_##nr(args) \ asm volatile ( \ "call *%%gs:%P2" \ : "=a" (resultvar) \ : "a" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ - ASMARGS_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + ASMARGS_##nr(args) : "memory", "cc") # else # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ LOADREGS_##nr(args) \ @@ -364,15 +398,12 @@ struct libc_do_syscall_args "call *_dl_sysinfo" \ : "=a" (resultvar) \ : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ LOADREGS_##nr(args) \ asm volatile ( \ "call *_dl_sysinfo" \ : "=a" (resultvar) \ - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") # endif # else /* GCC 5 */ # ifdef PIC @@ -386,9 +417,7 @@ struct libc_do_syscall_args : "=a" (resultvar) \ : "i" (__NR_##name), "i" (offsetof (tcbhead_t, sysinfo)) \ ASMFMT_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ EXTRAVAR_##nr \ asm volatile ( \ LOADARGS_##nr \ @@ -396,8 +425,7 @@ struct libc_do_syscall_args RESTOREARGS_##nr \ : "=a" (resultvar) \ : "0" (name), "i" (offsetof (tcbhead_t, sysinfo)) \ - ASMFMT_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + ASMFMT_##nr(args) : "memory", "cc") # else # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ EXTRAVAR_##nr \ @@ -408,17 +436,14 @@ struct libc_do_syscall_args RESTOREARGS_##nr \ : "=a" (resultvar) \ : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ EXTRAVAR_##nr \ asm volatile ( \ LOADARGS_##nr \ "call *_dl_sysinfo\n\t" \ RESTOREARGS_##nr \ : "=a" (resultvar) \ - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") # endif # endif /* GCC 5 */ #else @@ -429,15 +454,12 @@ struct libc_do_syscall_args "int $0x80" \ : "=a" (resultvar) \ : "a" (__NR_##name) ASMARGS_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ LOADREGS_##nr(args) \ asm volatile ( \ "int $0x80" \ : "=a" (resultvar) \ - : "a" (name) ASMARGS_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + : "a" (name) ASMARGS_##nr(args) : "memory", "cc") # else /* GCC 5 */ # define INTERNAL_SYSCALL_MAIN_INLINE(name, nr, args...) \ EXTRAVAR_##nr \ @@ -448,17 +470,14 @@ struct libc_do_syscall_args RESTOREARGS_##nr \ : "=a" (resultvar) \ : "i" (__NR_##name) ASMFMT_##nr(args) : "memory", "cc") -# define INTERNAL_SYSCALL_NCS(name, nr, args...) \ - ({ \ - register unsigned int resultvar; \ +# define INTERNAL_SYSCALL_MAIN_NCS(name, nr, args...) \ EXTRAVAR_##nr \ asm volatile ( \ LOADARGS_##nr \ "int $0x80\n\t" \ RESTOREARGS_##nr \ : "=a" (resultvar) \ - : "0" (name) ASMFMT_##nr(args) : "memory", "cc"); \ - (int) resultvar; }) + : "0" (name) ASMFMT_##nr(args) : "memory", "cc") # endif /* GCC 5 */ #endif