From: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Fri, 21 Oct 2022 14:43:44 +0000 (+0100)
Subject: Revert "TODO(gprof): aarch64: morello: add gprof profiling support to asm"
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5872cb18bcef09e9032dcc186ea668b8b1df49e;p=thirdparty%2Fglibc.git

Revert "TODO(gprof): aarch64: morello: add gprof profiling support to asm"

This reverts commit 960401b6f740232d2b97bfe9ea4118b394112a5e.
---

diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
index eb58ee340da..6575503c8b6 100644
--- a/sysdeps/aarch64/sysdep.h
+++ b/sysdeps/aarch64/sysdep.h
@@ -151,44 +151,10 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI)
   ASM_SIZE_DIRECTIVE(name)
 
 /* If compiled for profiling, call `mcount' at the start of each function.  */
-#if defined PROF && defined __CHERI_PURE_CAPABILITY__
-/* Note: c9 must be preserved in var arg functions.  */
-# define CALL_MCOUNT						\
-	stp	c30, c9, [csp, #-160]!;				\
-	cfi_adjust_cfa_offset (160);				\
-	cfi_rel_offset (c30, 0);				\
-	cfi_rel_offset (c9, 16);				\
-	stp	c0, c1, [csp, #32];				\
-	cfi_rel_offset (c0, 32);				\
-	cfi_rel_offset (c1, 48);				\
-	stp	c2, c3, [csp, #64];				\
-	cfi_rel_offset (c2, 64);				\
-	cfi_rel_offset (c3, 80);				\
-	stp	c4, c5, [csp, #96];				\
-	cfi_rel_offset (c4, 96);				\
-	cfi_rel_offset (c5, 112);				\
-	stp	c6, c7, [csp, #128];				\
-	cfi_rel_offset (c6, 128);				\
-	cfi_rel_offset (c7, 144);				\
-	mov	c0, c30;					\
-	bl	mcount;						\
-	ldp	c0, c1, [csp, #32];				\
-	cfi_restore (c0);					\
-	cfi_restore (c1);					\
-	ldp	c2, c3, [csp, #64];				\
-	cfi_restore (c2);					\
-	cfi_restore (c3);					\
-	ldp	c4, c5, [csp, #96];				\
-	cfi_restore (c4);					\
-	cfi_restore (c5);					\
-	ldp	c6, c7, [csp, #128];				\
-	cfi_restore (c6);					\
-	cfi_restore (c7);					\
-	ldp	c30, c9, [csp, #160];				\
-	cfi_adjust_cfa_offset (-160);				\
-	cfi_restore (c30);					\
-	cfi_restore (c9);
-#elif defined PROF && !defined __CHERI_PURE_CAPAILITY__
+#ifdef	PROF
+# ifdef __CHERI_PURE_CAPABILITY__
+#  error mcount profiling is not supported with purecap ABI
+# endif
 # define CALL_MCOUNT						\
 	str	x30, [sp, #-80]!;				\
 	cfi_adjust_cfa_offset (80);				\