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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 /nptl
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 'nptl')
-rw-r--r--nptl/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/nptl/Makefile b/nptl/Makefile
index 8251ac4d69..faabd45fdb 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -214,6 +214,7 @@ CFLAGS-recvfrom.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-recvmsg.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendmsg.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-close.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-read.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pt-system.c = -fexceptions