From 852622bf3616034e11e20955aa2d8d40c200138e Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Tue, 8 Aug 2023 16:30:18 +0800
Subject: scripts/gdb/vmalloc: add vmallocinfo support

This GDB script shows the vmallocinfo for user to
analyze the vmalloc memory usage.

Example output:
0xffff800008000000-0xffff800008009000      36864 <start_kernel+372> pages=8 vmalloc
0xffff800008009000-0xffff80000800b000       8192 <gicv2m_init_one+400> phys=0x8020000 ioremap
0xffff80000800b000-0xffff80000800d000       8192 <bpf_prog_alloc_no_stats+72> pages=1 vmalloc
0xffff80000800d000-0xffff80000800f000       8192 <bpf_jit_alloc_exec+16> pages=1 vmalloc
0xffff800008010000-0xffff80000ad30000   47316992 <paging_init+452> phys=0x40210000 vmap
0xffff80000ad30000-0xffff80000c1c0000   21561344 <paging_init+556> phys=0x42f30000 vmap
0xffff80000c1c0000-0xffff80000c370000    1769472 <paging_init+592> phys=0x443c0000 vmap
0xffff80000c370000-0xffff80000de90000   28442624 <paging_init+692> phys=0x44570000 vmap
0xffff80000de90000-0xffff80000f4c1000   23269376 <paging_init+788> phys=0x46090000 vmap
0xffff80000f4c1000-0xffff80000f4c3000       8192 <gen_pool_add_owner+112> pages=1 vmalloc
0xffff80000f4c3000-0xffff80000f4c5000       8192 <gen_pool_add_owner+112> pages=1 vmalloc
0xffff80000f4c5000-0xffff80000f4c7000       8192 <gen_pool_add_owner+112> pages=1 vmalloc

Link: https://lkml.kernel.org/r/20230808083020.22254-9-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Qun-Wei Lin <qun-wei.lin@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 scripts/gdb/linux/constants.py.in | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'scripts/gdb/linux/constants.py.in')

diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
index 03fa6d2cfe01..e3517d4ab8ec 100644
--- a/scripts/gdb/linux/constants.py.in
+++ b/scripts/gdb/linux/constants.py.in
@@ -22,6 +22,7 @@
 #include <linux/radix-tree.h>
 #include <linux/slab.h>
 #include <linux/threads.h>
+#include <linux/vmalloc.h>
 
 /* We need to stringify expanded macros so that they can be parsed */
 
@@ -91,6 +92,13 @@ LX_GDBPARSED(RADIX_TREE_MAP_SIZE)
 LX_GDBPARSED(RADIX_TREE_MAP_SHIFT)
 LX_GDBPARSED(RADIX_TREE_MAP_MASK)
 
+/* linux/vmalloc.h */
+LX_VALUE(VM_IOREMAP)
+LX_VALUE(VM_ALLOC)
+LX_VALUE(VM_MAP)
+LX_VALUE(VM_USERMAP)
+LX_VALUE(VM_DMA_COHERENT)
+
 /* linux/page_ext.h */
 if IS_BUILTIN(CONFIG_PAGE_OWNER):
     LX_GDBPARSED(PAGE_EXT_OWNER)
-- 
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