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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-03-19 13:33:01 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-03-19 13:33:01 -0400 |
| commit | becb26b84bfe4d3273c4e2d4e7684dfbbf7c6bcd (patch) | |
| tree | d1f824e20cdc41700596f1a9580bbbfe9dbb2d87 /sysdeps/unix/sysv/linux/generic/README | |
| parent | c2f5813ae0a68f6c6d69e66dac2da6e46b9df034 (diff) | |
| download | glibc-becb26b84bfe4d3273c4e2d4e7684dfbbf7c6bcd.tar.gz | |
linux-generic: add a README
Diffstat (limited to 'sysdeps/unix/sysv/linux/generic/README')
| -rw-r--r-- | sysdeps/unix/sysv/linux/generic/README | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/generic/README b/sysdeps/unix/sysv/linux/generic/README new file mode 100644 index 0000000000..301a6107e1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/generic/README @@ -0,0 +1,11 @@ +This hierarchy supports Linux systems using the new +asm-generic/unistd.h, which removes many familiar old syscalls. For +example, to implement open(), newer Linux architectures require glibc +to invoke the __NR_openat syscall with AT_FDCWD. This hierarchy +provides all those implementations. + +It also provides support for 32-bit platforms using the 64-bit kernel +syscall APIs, as the 32-bit ones are no longer provided. Note that +newer ILP32 environments (x32 or AArch64:ILP32, for example) are +converting to use more 64-bit types in kernel syscalls, so that aspect +of this support is in more flux as of this writing. |