8bc765216f
Tue Mar 02 2004 Elliot Lee <sopwith@redhat.com> - rebuilt Fri Feb 13 2004 Elliot Lee <sopwith@redhat.com> - rebuilt
64 lines
2.4 KiB
Diff
64 lines
2.4 KiB
Diff
--- pciutils-2.1.99-test3/lib/pread.h.pread 2004-02-25 01:51:55.369843832 -0500
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+++ pciutils-2.1.99-test3/lib/pread.h 2004-02-25 01:52:01.405065807 -0500
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@@ -6,60 +6,6 @@
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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-/*
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- * We'd like to use pread/pwrite for configuration space accesses, but
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- * unfortunately it isn't simple at all since all libc's until glibc 2.1
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- * don't define it.
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- */
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-
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-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ > 0
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-/* glibc 2.1 or newer -> pread/pwrite supported automatically */
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-
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-#elif defined(i386) && defined(__GLIBC__)
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-/* glibc 2.0 on i386 -> call syscalls directly */
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-#include <asm/unistd.h>
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-#include <syscall-list.h>
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-#ifndef SYS_pread
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-#define SYS_pread 180
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-#endif
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-static int pread(unsigned int fd, void *buf, size_t size, loff_t where)
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-{ return syscall(SYS_pread, fd, buf, size, where); }
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-#ifndef SYS_pwrite
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-#define SYS_pwrite 181
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-#endif
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-static int pwrite(unsigned int fd, void *buf, size_t size, loff_t where)
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-{ return syscall(SYS_pwrite, fd, buf, size, where); }
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-
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-#elif defined(i386)
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-/* old libc on i386 -> call syscalls directly the old way */
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-#include <asm/unistd.h>
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-static _syscall5(int, pread, unsigned int, fd, void *, buf, size_t, size, u32, where_lo, u32, where_hi);
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-static _syscall5(int, pwrite, unsigned int, fd, void *, buf, size_t, size, u32, where_lo, u32, where_hi);
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-static int do_read(struct pci_dev *d UNUSED, int fd, void *buf, size_t size, int where) { return pread(fd, buf, size, where, 0); }
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-static int do_write(struct pci_dev *d UNUSED, int fd, void *buf, size_t size, int where) { return pwrite(fd, buf, size, where, 0); }
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-#define HAVE_DO_READ
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-
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-#else
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-/* In all other cases we use lseek/read/write instead to be safe */
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-#define make_rw_glue(op) \
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- static int do_##op(struct pci_dev *d, int fd, void *buf, size_t size, int where) \
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- { \
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- struct pci_access *a = d->access; \
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- int r; \
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- if (a->fd_pos != where && lseek(fd, where, SEEK_SET) < 0) \
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- return -1; \
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- r = op(fd, buf, size); \
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- if (r < 0) \
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- a->fd_pos = -1; \
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- else \
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- a->fd_pos = where + r; \
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- return r; \
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- }
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-make_rw_glue(read)
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-make_rw_glue(write)
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-#define HAVE_DO_READ
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-#endif
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-
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#ifndef HAVE_DO_READ
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#define do_read(d,f,b,l,p) pread(f,b,l,p)
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#define do_write(d,f,b,l,p) pwrite(f,b,l,p)
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