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Date: Wed, 6 Mar 2024 16:56:22 +0800 From: Yunhui Cui <cuiyunhui@...edance.com> To: paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu, ardb@...nel.org, cuiyunhui@...edance.com, xuzhipeng.1973@...edance.com, alexghiti@...osinc.com, samitolvanen@...gle.com, bp@...en8.de, xiao.w.wang@...el.com, jan.kiszka@...mens.com, kirill.shutemov@...ux.intel.com, nathan@...nel.org, linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org Subject: [PATCH 3/3] efistub: fix missed the initialization of gp Compared with gcc version 12, gcc version 13 uses the gp register for compilation optimization, but the efistub module does not initialize gp. Signed-off-by: Yunhui Cui <cuiyunhui@...edance.com> Co-Developed-by: Zhipeng Xu <xuzhipeng.1973@...edance.com> --- arch/riscv/kernel/efi-header.S | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/riscv/kernel/efi-header.S b/arch/riscv/kernel/efi-header.S index 515b2dfbca75..fa17c08c092a 100644 --- a/arch/riscv/kernel/efi-header.S +++ b/arch/riscv/kernel/efi-header.S @@ -40,7 +40,7 @@ optional_header: .long __pecoff_data_virt_end - __pecoff_text_end // SizeOfInitializedData #endif .long 0 // SizeOfUninitializedData - .long __efistub_efi_pe_entry - _start // AddressOfEntryPoint + .long _efistub_entry - _start // AddressOfEntryPoint .long efi_header_end - _start // BaseOfCode #ifdef CONFIG_32BIT .long __pecoff_text_end - _start // BaseOfData @@ -121,4 +121,13 @@ section_table: .balign 0x1000 efi_header_end: + + .global _efistub_entry +_efistub_entry: + /* Reload the global pointer */ + load_global_pointer + + call __efistub_efi_pe_entry + ret + .endm -- 2.20.1
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