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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-08-25 17:42:44 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-11-08 16:04:33 -0200 |
commit | 3c7f1f59cd1611e0727f9b5ffc32dae78cb05000 (patch) | |
tree | e70424eba74bebc6cbc1466f995d8474c57ce89d /sysdeps/unix/sysv/linux/mips/mips64/llseek.c | |
parent | e0c6851980806f2a51b37e3e37fc9a48420a4a83 (diff) | |
download | glibc-3c7f1f59cd1611e0727f9b5ffc32dae78cb05000.tar.gz glibc-3c7f1f59cd1611e0727f9b5ffc32dae78cb05000.tar.xz glibc-3c7f1f59cd1611e0727f9b5ffc32dae78cb05000.zip |
Consolidate lseek/lseek64/llseek implementations
This patch consolidates all Linux lseek/lseek64/llseek implementation in on on sysdeps/unix/sysv/linux/lseek{64}.c. It also removes the llseek file and instead consolidate the LFS lseek implementation on lseek64.c as for other LFS symbols implementations. The general idea is: - lseek: ABIs that not define __OFF_T_MATCHES_OFF64_T will preferable use __NR__llseek if kernel supports it, otherwise they will use __NR_lseek. ABIs that defines __OFF_T_MATCHES_OFF64_T won't produce any symbol. - lseek64: ABIs with __OFF_T_MATCHES_OFF64_T will preferable use __NR_lseek (since it will use 64-bit arguments without low/high splitting) and __NR__llseek if __NR_lseek is not defined (for some ILP32 ports). - llseek: files will be removed and symbols will be aliased ot lseek64. ABI without __OFF_T_MATCHES_OFF64_T and without __NR_llseek (basically MIPS64n32 so far) are covered by building lseek with off_t as expected and lseek64 using __NR_lseek (as expected for off64_t being passed using 64-bit registers). For this consolidation I mantained the x32 assembly specific implementation because to correctly fix this it would required both the x32 fix for {INLINE,INTERNAL}_SYSCALL [1] and a wrapper to correctly subscribe it to return 64 bits instead of default 32 bits (as for times). It could a future cleanup. It is based on my previous {INTERNAL,INLINE}_SYSCALL_CALL macro [2], although it is mainly for simplification. Tested on x86_64, i686, aarch64, armhf, and powerpc64le. * nptl/Makefile (libpthread-routines): Remove ptw-llseek and add ptw-lseek64. * sysdeps/unix/sysv/linux/Makefile (sysdeps_routines): Remove llseek. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Likewise. * sysdeps/unix/sysv/linux/generic/wordsize-32/llseek.c: Remove file. * sysdeps/unix/sysv/linux/generic/wordsize-32/lseek.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/llseek.c: Likewise. * sysdeps/unix/sysv/linux/llseek.c: Remove file. * sysdeps/unix/sysv/linux/lseek.c: New file. * sysdeps/unix/sysv/linux/lseek64.c: Add default Linux implementation. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list: Remove lseek and __libc_lseek64 from auto-generation. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/lseek64.S: New file. [1] https://sourceware.org/ml/libc-alpha/2016-08/msg00443.html [2] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/mips64/llseek.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/llseek.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/llseek.c b/sysdeps/unix/sysv/linux/mips/mips64/llseek.c deleted file mode 100644 index 24013a8224..0000000000 --- a/sysdeps/unix/sysv/linux/mips/mips64/llseek.c +++ /dev/null @@ -1 +0,0 @@ -/* lseek() is 64-bit capable already. */ |