From 459e651fd518aaecda9ff6079ea0385456e0be5b Mon Sep 17 00:00:00 2001
From: Michael Lotz <mmlr@mlotz.ch>
Date: Sat, 11 Apr 2015 11:13:33 +0200
Subject: [PATCH] syscalls: Remove lookup_symbol syscall again.

This partially reverts b959d46dbd2f9087ae860dbced40440c28596a6e.
---
 headers/private/kernel/elf.h      |  5 ----
 headers/private/system/syscalls.h |  4 ----
 src/system/kernel/elf.cpp         | 38 -------------------------------
 3 files changed, 47 deletions(-)

diff --git a/headers/private/kernel/elf.h b/headers/private/kernel/elf.h
index b8c6a426e9..3851504db4 100644
--- a/headers/private/kernel/elf.h
+++ b/headers/private/kernel/elf.h
@@ -54,11 +54,6 @@ status_t _user_read_kernel_image_symbols(image_id id, elf_sym* symbolTable,
 			int32* _symbolCount, char* stringTable, size_t* _stringTableSize,
 			addr_t* _imageDelta);
 
-status_t _user_lookup_symbol(addr_t address, addr_t* baseAddress,
-			char* symbolNameBuffer, size_t symbolNameBufferSize,
-			char* imageNameBuffer, size_t imageNameBufferSize,
-			bool* exactMatch);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/headers/private/system/syscalls.h b/headers/private/system/syscalls.h
index f55639b115..8cd608c02e 100644
--- a/headers/private/system/syscalls.h
+++ b/headers/private/system/syscalls.h
@@ -494,10 +494,6 @@ extern status_t		_kern_system_profiler_recorded(
 
 extern ssize_t		_kern_get_stack_trace(size_t addressCount,
 						addr_t* adresses);
-extern status_t		_kern_lookup_symbol(addr_t address, addr_t* baseAddress,
-						char* symbolNameBuffer, size_t symbolNameBufferSize,
-						char* imageNameBuffer, size_t imageNameBufferSize,
-						bool* exactMatch);
 
 /* atomic_* ops (needed for CPUs that don't support them directly) */
 #ifdef ATOMIC_FUNCS_ARE_SYSCALLS
diff --git a/src/system/kernel/elf.cpp b/src/system/kernel/elf.cpp
index 1e876b7df9..66764f71ab 100644
--- a/src/system/kernel/elf.cpp
+++ b/src/system/kernel/elf.cpp
@@ -2686,41 +2686,3 @@ _user_read_kernel_image_symbols(image_id id, elf_sym* symbolTable,
 
 	return B_OK;
 }
-
-
-status_t
-_user_lookup_symbol(addr_t address, addr_t* userBaseAddress,
-	char* userSymbolNameBuffer, size_t symbolNameBufferSize,
-	char* userImageNameBuffer, size_t imageNameBufferSize, bool* userExactMatch)
-{
-	MutexLocker locker(&sImageMutex);
-
-	addr_t baseAddress;
-	const char *symbolName;
-	const char *imageName;
-	bool exactMatch;
-	status_t status;
-
-	if (IS_KERNEL_ADDRESS(address)) {
-		status = elf_debug_lookup_symbol_address(address, &baseAddress,
-			&symbolName, &imageName, &exactMatch);
-	} else {
-		status = elf_debug_lookup_user_symbol_address(
-			thread_get_current_thread()->team, address, &baseAddress,
-			&symbolName, &imageName, &exactMatch);
-	}
-
-	if (status != B_OK)
-		return status;
-
-	if (user_memcpy(userBaseAddress, &baseAddress, sizeof(addr_t)) != B_OK
-		|| user_memcpy(userExactMatch, &exactMatch, sizeof(bool)) != B_OK
-		|| user_strlcpy(userSymbolNameBuffer, symbolName, symbolNameBufferSize)
-			< 0
-		|| user_strlcpy(userImageNameBuffer, imageName, imageNameBufferSize)
-			< 0) {
-		return B_BAD_ADDRESS;
-	}
-
-	return B_OK;
-}