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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2015-11-03 10:13:18 -0200
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-05-11 17:27:30 -0300
commitf6a191a6ee0313d61dffa70d86b033c5a598f907 (patch)
treeb4e748887ab6a83601122f9a9259bb34471dfc2e /io
parentcab6e5af9d51d4398522af782e20c743daf37461 (diff)
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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.
Diffstat (limited to 'io')
-rw-r--r--io/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/io/Makefile b/io/Makefile
index 8b1c250..db14c0d 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -100,6 +100,7 @@ CFLAGS-posix_fallocate64.c = -fexceptions
CFLAGS-fallocate.c = -fexceptions
CFLAGS-fallocate64.c = -fexceptions
CFLAGS-sync_file_range.c = -fexceptions
+CFLAGS-read.c = -fexceptions
CFLAGS-test-stat.c = -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
CFLAGS-test-lfs.c = -D_LARGEFILE64_SOURCE