From: Richard Henderson <richard.henderson@linaro.org>
Date: Tue, 29 Jul 2025 23:40:15 +0000 (-1000)
Subject: linux-user: Move ppc uabi/asm/elf.h workaround to osdep.h
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a859022ceaba12444f1a8f5a5efc5e76c7d5dc13;p=thirdparty%2Fqemu.git

linux-user: Move ppc uabi/asm/elf.h workaround to osdep.h

Move the workaround out of linux-user/elfload.c, so that
we don't have to replicate it in many places.  Place it
immediately after the include of <signal.h>, which draws
in the relevant symbols.

Note that ARCH_DLINFO is not defined by the kernel header,
and so there's no need to undef it either.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---

diff --git a/hw/core/loader.c b/hw/core/loader.c
index e7056ba4bd3..524af6f14a0 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -295,10 +295,6 @@ static void *load_at(int fd, off_t offset, size_t size)
     return ptr;
 }
 
-#ifdef ELF_CLASS
-#undef ELF_CLASS
-#endif
-
 #define ELF_CLASS   ELFCLASS32
 #include "elf.h"
 
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 96fe51bc390..be3460b32f2 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -133,6 +133,14 @@ QEMU_EXTERN_C int daemon(int, int);
 #include <setjmp.h>
 #include <signal.h>
 
+/*
+ * Avoid conflict with linux/arch/powerpc/include/uapi/asm/elf.h, included
+ * from <asm/sigcontext.h>, but we might as well do this unconditionally.
+ */
+#undef ELF_CLASS
+#undef ELF_DATA
+#undef ELF_ARCH
+
 #ifdef CONFIG_IOVEC
 #include <sys/uio.h>
 #endif
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index ea214105ff8..4ca8c39dc26 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -35,16 +35,6 @@
 #include "target/arm/cpu-features.h"
 #endif
 
-#ifdef _ARCH_PPC64
-#undef ARCH_DLINFO
-#undef ELF_PLATFORM
-#undef ELF_HWCAP
-#undef ELF_HWCAP2
-#undef ELF_CLASS
-#undef ELF_DATA
-#undef ELF_ARCH
-#endif
-
 #ifndef TARGET_ARCH_HAS_SIGTRAMP_PAGE
 #define TARGET_ARCH_HAS_SIGTRAMP_PAGE 0
 #endif