From 5bfed16d69f287251f95d8ec35ec16068b453224 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 5 Nov 2002 19:58:06 +0000 Subject: Update. 2002-11-05 Franz Sirl * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Handle __NR_pread64 and __NR_pwrite64. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/pread.c: Remove __NR_pread64 and __NR_pwrite64. Revert change to use INLINE_SYSCALL. * sysdeps/unix/sysv/linux/powerpc/pread64.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/pwrite64.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/ftruncate64.c: Revert change to use INLINE_SYSCALL. * sysdeps/unix/sysv/linux/powerpc/truncate64.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h (INLINE_SYSCALL): Update clobber list and add a comment about the syscall ABI. --- sysdeps/unix/sysv/linux/powerpc/ftruncate64.c | 2 +- sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h | 25 +++++++++++++++++++++- sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h | 18 ++++++++++++++++ sysdeps/unix/sysv/linux/powerpc/pread.c | 9 +------- sysdeps/unix/sysv/linux/powerpc/pread64.c | 9 +------- sysdeps/unix/sysv/linux/powerpc/pwrite.c | 9 +------- sysdeps/unix/sysv/linux/powerpc/pwrite64.c | 9 +------- sysdeps/unix/sysv/linux/powerpc/truncate64.c | 2 +- 8 files changed, 48 insertions(+), 35 deletions(-) (limited to 'sysdeps/unix/sysv/linux/powerpc') diff --git a/sysdeps/unix/sysv/linux/powerpc/ftruncate64.c b/sysdeps/unix/sysv/linux/powerpc/ftruncate64.c index bb54b53f47..39f7d1fb59 100644 --- a/sysdeps/unix/sysv/linux/powerpc/ftruncate64.c +++ b/sysdeps/unix/sysv/linux/powerpc/ftruncate64.c @@ -47,7 +47,7 @@ __ftruncate64 (fd, length) #ifndef __ASSUME_TRUNCATE64_SYSCALL int saved_errno = errno; #endif - int result = INLINE_SYSCALL (ftruncate64, 2, fd, length); + int result = __syscall_ftruncate64 (fd, length); #ifndef __ASSUME_TRUNCATE64_SYSCALL if (result != -1 || errno != ENOSYS) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h index c0f04f1ddd..9389d5ca12 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h @@ -21,6 +21,24 @@ #include +/* Some systen calls got renamed over time, but retained the same semantics. + Handle them here so they can be catched by both C and assembler stubs in + glibc. */ + +#ifdef __NR_pread64 +# ifdef __NR_pread +# error "__NR_pread and __NR_pread64 both defined???" +# endif +# define __NR_pread __NR_pread64 +#endif + +#ifdef __NR_pwrite64 +# ifdef __NR_pwrite +# error "__NR_pwrite and __NR_pwrite64 both defined???" +# endif +# define __NR_pwrite __NR_pwrite64 +#endif + /* For Linux we can use the system call table in the header file /usr/include/asm/unistd.h of the kernel. But these symbols do not follow the SYS_* syntax @@ -36,6 +54,11 @@ # include +/* On powerpc a system call basically clobbers the same registers like a + function call, with the exception of LR (which is needed for the + "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal + an error return status). */ + # undef INLINE_SYSCALL # define INLINE_SYSCALL(name, nr, args...) \ ({ \ @@ -59,7 +82,7 @@ "=&r" (r3), "=&r" (r4), "=&r" (r5), "=&r" (r6), "=&r" (r7), \ "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12) \ : ASM_INPUT_##nr \ - : "cc", "memory"); \ + : "cr0", "ctr", "memory"); \ err = r0; \ ret = r3; \ if (err & (1 << 28)) \ diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h index 4031959df3..d56ff877ac 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h @@ -29,6 +29,24 @@ #include #endif +/* Some systen calls got renamed over time, but retained the same semantics. + Handle them here so they can be catched by both C and assembler stubs in + glibc. */ + +#ifdef __NR_pread64 +# ifdef __NR_pread +# error "__NR_pread and __NR_pread64 both defined???" +# endif +# define __NR_pread __NR_pread64 +#endif + +#ifdef __NR_pwrite64 +# ifdef __NR_pwrite +# error "__NR_pwrite and __NR_pwrite64 both defined???" +# endif +# define __NR_pwrite __NR_pwrite64 +#endif + /* For Linux we can use the system call table in the header file /usr/include/asm/unistd.h of the kernel. But these symbols do not follow the SYS_* syntax diff --git a/sysdeps/unix/sysv/linux/powerpc/pread.c b/sysdeps/unix/sysv/linux/powerpc/pread.c index 48c476c28a..e5e3ed8bfe 100644 --- a/sysdeps/unix/sysv/linux/powerpc/pread.c +++ b/sysdeps/unix/sysv/linux/powerpc/pread.c @@ -24,13 +24,6 @@ #include #include -#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */ -# ifdef __NR_pread -# error "__NR_pread and __NR_pread64 both defined???" -# endif -# define __NR_pread __NR_pread64 -#endif - #ifdef __NR_pread extern ssize_t __syscall_pread (int fd, void *buf, size_t count, @@ -50,7 +43,7 @@ __libc_pread (fd, buf, count, offset) ssize_t result; /* First try the syscall. */ - result = INLINE_SYSCALL (pread, 4, fd, CHECK_N (buf, count), count, offset); + result = __syscall_pread (fd, CHECK_N (buf, count), count, (off64_t) offset); if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pread (fd, buf, count, offset); diff --git a/sysdeps/unix/sysv/linux/powerpc/pread64.c b/sysdeps/unix/sysv/linux/powerpc/pread64.c index 68ef8388e0..d6acb72b9d 100644 --- a/sysdeps/unix/sysv/linux/powerpc/pread64.c +++ b/sysdeps/unix/sysv/linux/powerpc/pread64.c @@ -24,13 +24,6 @@ #include #include -#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */ -# ifdef __NR_pread -# error "__NR_pread and __NR_pread64 both defined???" -# endif -# define __NR_pread __NR_pread64 -#endif - #ifdef __NR_pread extern ssize_t __syscall_pread (int fd, void *buf, size_t count, @@ -50,7 +43,7 @@ __libc_pread64 (fd, buf, count, offset) ssize_t result; /* First try the syscall. */ - result = INLINE_SYSCALL (pread, 4, fd, CHECK_N (buf, count), count, offset); + result = __syscall_pread (fd, CHECK_N (buf, count), count, offset); if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pread64 (fd, buf, count, offset); diff --git a/sysdeps/unix/sysv/linux/powerpc/pwrite.c b/sysdeps/unix/sysv/linux/powerpc/pwrite.c index 3f3b79d0e3..7be7b44fef 100644 --- a/sysdeps/unix/sysv/linux/powerpc/pwrite.c +++ b/sysdeps/unix/sysv/linux/powerpc/pwrite.c @@ -24,13 +24,6 @@ #include #include -#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */ -# ifdef __NR_pwrite -# error "__NR_pwrite and __NR_pwrite64 both defined???" -# endif -# define __NR_pwrite __NR_pwrite64 -#endif - #ifdef __NR_pwrite extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count, @@ -50,7 +43,7 @@ __libc_pwrite (fd, buf, count, offset) ssize_t result; /* First try the syscall. */ - result = INLINE_SYSCALL (pwrite, 4, fd, CHECK_N (buf, count), count, offset); + result = __syscall_pwrite (fd, CHECK_N (buf, count), count, (off64_t) offset); if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pwrite (fd, buf, count, offset); diff --git a/sysdeps/unix/sysv/linux/powerpc/pwrite64.c b/sysdeps/unix/sysv/linux/powerpc/pwrite64.c index 038e7a77da..24ad56d1c0 100644 --- a/sysdeps/unix/sysv/linux/powerpc/pwrite64.c +++ b/sysdeps/unix/sysv/linux/powerpc/pwrite64.c @@ -24,13 +24,6 @@ #include #include -#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */ -# ifdef __NR_pwrite -# error "__NR_pwrite and __NR_pwrite64 both defined???" -# endif -# define __NR_pwrite __NR_pwrite64 -#endif - #ifdef __NR_pwrite extern ssize_t __syscall_pwrite (int fd, const void *buf, size_t count, @@ -50,7 +43,7 @@ __libc_pwrite64 (fd, buf, count, offset) ssize_t result; /* First try the syscall. */ - result = INLINE_SYSCALL (pwrite, 4, fd, CHECK_N (buf, count), count, offset); + result = __syscall_pwrite (fd, CHECK_N (buf, count), count, offset); if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pwrite64 (fd, buf, count, offset); diff --git a/sysdeps/unix/sysv/linux/powerpc/truncate64.c b/sysdeps/unix/sysv/linux/powerpc/truncate64.c index cf76e5341b..3f5c581444 100644 --- a/sysdeps/unix/sysv/linux/powerpc/truncate64.c +++ b/sysdeps/unix/sysv/linux/powerpc/truncate64.c @@ -48,7 +48,7 @@ truncate64 (path, length) #ifndef __ASSUME_TRUNCATE64_SYSCALL int saved_errno = errno; #endif - int result = INLINE_SYSCALL (truncate64, 2, CHECK_STRING (path), length); + int result = __syscall_truncate64 (CHECK_STRING (path), length); #ifndef __ASSUME_TRUNCATE64_SYSCALL if (result != -1 || errno != ENOSYS) -- cgit v1.2.3