From f6a191a6ee0313d61dffa70d86b033c5a598f907 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Tue, 3 Nov 2015 10:13:18 -0200 Subject: Consolidate Linux read syscall This patch consolidates the read Linux syscall implementation on sysdeps/unix/sysv/linux/read.c. This leads to a different frame pointer creation on some architectures: * It fixes BZ#21428 on aarch64, since now the returned address for the read syscall can be correctly found out by backtrace_symbols. * It makes tst-backtrace{5,6} fails on powerpc due an issue on its custom backtrace implementation. It is fixed on subsequent patch from this set. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. [BZ #21428] * include/unistd.h (read): Add hidden proto. * io/Makefile (CFLAGS-read.c): New rule. * nptl/Makefile (CFLAGS-read.c): New rule. * sysdeps/unix/sysv/linux/read.c: New file. --- include/unistd.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/unistd.h b/include/unistd.h index f36759b..01556d3 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -53,6 +53,7 @@ extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n, __off64_t __offset) attribute_hidden; extern ssize_t __libc_read (int __fd, void *__buf, size_t __n); libc_hidden_proto (__libc_read) +libc_hidden_proto (read) extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n); libc_hidden_proto (__libc_write) extern int __pipe (int __pipedes[2]); -- cgit v1.1