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authorNicholas Piggin <npiggin@gmail.com>2023-04-08 05:17:50 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2023-04-20 05:54:24 +0300
commit4e991e3c16a350d1eeffc100ce3fb25292596d03 (patch)
tree850fa79b5e450ca0bbb807c42a50cfd54d01f70e /tools/testing/selftests/powerpc
parentdc5dac748af9087e9240bd2ae6ae7db48d5360ae (diff)
downloadlinux-4e991e3c16a350d1eeffc100ce3fb25292596d03.tar.xz
powerpc: add CFUNC assembly label annotation
This macro is to be used in assembly where C functions are called. pcrel addressing mode requires branches to functions with a localentry value of 1 to have either a trailing nop or @notoc. This macro permits the latter without changing callers. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Add dummy definitions to fix selftests build] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230408021752.862660-5-npiggin@gmail.com
Diffstat (limited to 'tools/testing/selftests/powerpc')
-rw-r--r--tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h1
-rw-r--r--tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
index 003e1b3d9300..a89f1fbf86ec 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
@@ -27,6 +27,7 @@
#define _GLOBAL_TOC(A) _GLOBAL(A)
#define _GLOBAL_TOC_KASAN(A) _GLOBAL(A)
#define _GLOBAL_KASAN(A) _GLOBAL(A)
+#define CFUNC(name) name
#define PPC_MTOCRF(A, B) mtocrf A, B
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
index 2b488b78c4f2..e713b69d694a 100644
--- a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
@@ -9,6 +9,7 @@
#define _GLOBAL(A) FUNC_START(test_ ## A)
#define _GLOBAL_TOC(A) FUNC_START(test_ ## A)
+#define CFUNC(name) name
#define CONFIG_ALTIVEC