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[ Upstream commit7a6c355b55] Commitb18b047002("kbuild: change scripts/mksysmap into sed script") changed the invocation of the script, to call sed directly without shell. That means, the current extra escape that was added in: commitec336aa831("scripts/mksysmap: Fix badly escaped '$'") for the shell is not correct any more, at the moment the stack traces for nvhe are corrupted: [ 22.840904] kvm [190]: [<ffff80008116dd54>] __kvm_nvhe_$x.220+0x58/0x9c [ 22.842913] kvm [190]: [<ffff8000811709bc>] __kvm_nvhe_$x.9+0x44/0x50 [ 22.844112] kvm [190]: [<ffff80008116f8fc>] __kvm_nvhe___skip_pauth_save+0x4/0x4 With this patch: [ 25.793513] kvm [192]: nVHE call trace: [ 25.794141] kvm [192]: [<ffff80008116dd54>] __kvm_nvhe_hyp_panic+0xb0/0xf4 [ 25.796590] kvm [192]: [<ffff8000811709bc>] __kvm_nvhe_handle_trap+0xe4/0x188 [ 25.797553] kvm [192]: [<ffff80008116f8fc>] __kvm_nvhe___skip_pauth_save+0x4/0x4 Fixes:b18b047002("kbuild: change scripts/mksysmap into sed script") Signed-off-by: Mostafa Saleh <smostafa@google.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2.0 KiB
Executable File
2.0 KiB
Executable File
#!/bin/sed -f
SPDX-License-Identifier: GPL-2.0-only
sed script to filter out symbols that are not needed for System.map,
or not suitable for kallsyms. The input should be 'nm -n '.
System.map is used by module-init tools and some debugging
tools to retrieve the actual addresses of symbols in the kernel.
readprofile starts reading symbols when _stext is found, and
continue until it finds a symbol which is not either of 'T', 't',
'W' or 'w'.
---------------------------------------------------------------------------
Ignored symbol types
a: local absolute symbols
N: debugging symbols
U: undefined global symbols
w: local weak symbols
/ [aNUw] /d
---------------------------------------------------------------------------
Ignored prefixes
(do not forget a space before each pattern)
local symbols for ARM, MIPS, etc.
/ $/d
local labels, .LBB, .Ltmpxxx, .L__unnamed_xx, .LASANPC, etc.
/ .L/d
arm64 EFI stub namespace
/ _efistub/d
arm64 local symbols in PIE namespace
/ _pi\$/d / _pi.L/d
arm64 local symbols in non-VHE KVM namespace
/ _kvm_nvhe$/d / _kvm_nvhe.L/d
lld arm/aarch64/mips thunks
/ _:alnum:*Thunk/d
CFI type identifiers
/ _kcfi_typeid/d / _kvm_nvhe___kcfi_typeid/d / _pi___kcfi_typeid/d
CRC from modversions
/ _crc/d
EXPORT_SYMBOL (symbol name)
/ _kstrtab/d
EXPORT_SYMBOL (namespace)
/ _kstrtabns/d
---------------------------------------------------------------------------
Ignored suffixes
(do not forget '$' after each pattern)
arm
/_from_arm$/d /_from_thumb$/d /_veneer$/d
---------------------------------------------------------------------------
Ignored symbols (exact match)
(do not forget a space before and '$' after each pattern)
for LoongArch?
/ L0$/d
ppc
/ SDA_BASE$/d / SDA2_BASE$/d
---------------------------------------------------------------------------
Ignored patterns
(symbols that contain the pattern are ignored)
ppc stub
/.long_branch./d /.plt_branch./d