linux/scripts/mod
René Rebe 648a26c3bd modpost: Amend ppc64 save/restfpr symnames for -Os build
[ Upstream commit 3cd9763ce4 ]

Building a size optimized ppc64 kernel (-Os), gcc emits more FP
save/restore symbols, that the linker generates on demand into the
.sfpr section. Explicitly allow-list those in scripts/mod/modpost.c,
too. They are needed for the amdgpu in-kernel floating point support.

MODPOST Module.symvers
ERROR: modpost: "_restfpr_20" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_restfpr_26" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_restfpr_22" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_savegpr1_27" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_savegpr1_25" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_restfpr_28" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_savegpr1_29" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_savefpr_20" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_savefpr_22" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: modpost: "_restfpr_15" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
WARNING: modpost: suppressed 56 unresolved symbol warnings because there were too many)

Signed-off-by: René Rebe <rene@exactco.de>
Link: https://patch.msgid.link/20251123.131330.407910684435629198.rene@exactco.de
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-03-04 07:21:09 -05:00
..
.gitignore .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
devicetable-offsets.c slimbus: generate MODULE_ALIAS() from MODULE_DEVICE_TABLE() 2024-09-03 12:10:39 +02:00
empty.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file2alias.c modpost: fix the missed iteration for the max bit in do_input() 2025-01-09 13:33:48 +01:00
Makefile Makefile: remove redundant tool coverage variables 2024-05-14 23:35:48 +09:00
mk_elfconfig.c modpost: detect endianness on run-time 2024-09-01 20:33:32 +09:00
modpost.c modpost: Amend ppc64 save/restfpr symnames for -Os build 2026-03-04 07:21:09 -05:00
modpost.h modpost: simplify modpost_log() 2024-09-01 20:34:50 +09:00
sumversion.c sumversion: Fix a memory leak in get_src_version() 2024-10-23 16:11:13 +09:00
symsearch.c modpost: replace the use of NOFAIL() with xmalloc() etc. 2024-09-01 20:34:48 +09:00