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authorYvan Roux <yvan.roux@linaro.org>2014-05-20 13:45:22 +0100
committerWill Newton <will.newton@linaro.org>2014-05-20 13:45:22 +0100
commit7d05a8168b45c0580e1f9a79c2dd26c8f0d31fca (patch)
treeabfa33b39af791f95e4bbb6d9c341e5e49c2bd9c /ChangeLog
parentaf121e371d6d1a46df72d59f3a6b521eb12a9c6e (diff)
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AArch64: Remove asm/ptrace.h inclusion in sys/user.h and sys/procfs.h
This patch fixes an issue observed by the Xen project, where including
signal.h exposes various PSR_MODE #defines.  This is due to the usage
in sys/user.h and sys/procfs.h of the struct user_pt_regs and
user_fpsimd_state included via asm/ptrace.h.  The namespace pollution
this inclusion introduce is already partially fixed with some #undef
of the PTRACE_* symbols, but other symbols like the PSR_MODE ones are
still present, and undefining them is not safe since a user can
include ptrace.h before user.h.

My proposition is to define the 2 structures we need in user.h and get
rid of the asm/ptrace.h inclusion.

Build and make check are clean on AArch64.

2014-05-20  Will Newton  <will.newton@linaro.org>
	    Yvan Roux  <yvan.roux@linaro.org>

	* sysdeps/unix/sysv/linux/aarch64/sys/user.h: Remove unused
	#include of asm/ptrace.h.
	(PTRACE_GET_THREAD_AREA): Remove #undef.
	(PTRACE_GETHBPREGS): Likewise.
	(PTRACE_SETHBPREGS): Likewise.
	(struct user_regs_struct): New structure.
	(struct user_fpsimd_struct): New structure.
	* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove unused
	#include of asm/ptrace.h and second #include of sys/user.h.
	(PTRACE_GET_THREAD_AREA): Remove #undef.
	(PTRACE_GETHBPREGS): Likewise.
	(PTRACE_SETHBPREGS): Likewise.
	(ELF_NGREG): Use new struct user_regs_struct.
	(elf_fpregset_t): Use new struct user_fpsimd_struct.
Diffstat (limited to 'ChangeLog')
-rw-r--r--ChangeLog18
1 files changed, 18 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 2060344dbf..8c2fd9752e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,21 @@
+2014-05-20  Will Newton  <will.newton@linaro.org>
+	    Yvan Roux  <yvan.roux@linaro.org>
+
+	* sysdeps/unix/sysv/linux/aarch64/sys/user.h: Remove unused
+	#include of asm/ptrace.h.
+	(PTRACE_GET_THREAD_AREA): Remove #undef.
+	(PTRACE_GETHBPREGS): Likewise.
+	(PTRACE_SETHBPREGS): Likewise.
+	(struct user_regs_struct): New structure.
+	(struct user_fpsimd_struct): New structure.
+	* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove unused
+	#include of asm/ptrace.h and second #include of sys/user.h.
+	(PTRACE_GET_THREAD_AREA): Remove #undef.
+	(PTRACE_GETHBPREGS): Likewise.
+	(PTRACE_SETHBPREGS): Likewise.
+	(ELF_NGREG): Use new struct user_regs_struct.
+	(elf_fpregset_t): Use new struct user_fpsimd_struct.
+
 2014-05-19  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypof.c: Moved ...