From: Brian Gerst Date: Fri, 25 Mar 2022 15:39:50 +0000 (-0400) Subject: x86/32: Simplify ELF_CORE_COPY_REGS X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f5d9283ecb33329073033029fe427155aa0abfb1;p=linux.git x86/32: Simplify ELF_CORE_COPY_REGS GS is now always a user segment, so there is no difference between user and kernel registers. Signed-off-by: Brian Gerst Signed-off-by: Borislav Petkov Reviewed-by: Thomas Gleixner Acked-by: Andy Lutomirski Link: https://lore.kernel.org/r/20220325153953.162643-2-brgerst@gmail.com --- diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h index 29fea180a6658..cb0ff1055ab16 100644 --- a/arch/x86/include/asm/elf.h +++ b/arch/x86/include/asm/elf.h @@ -116,7 +116,7 @@ extern unsigned int vdso32_enabled; * now struct_user_regs, they are different) */ -#define ELF_CORE_COPY_REGS_COMMON(pr_reg, regs) \ +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ do { \ pr_reg[0] = regs->bx; \ pr_reg[1] = regs->cx; \ @@ -128,6 +128,7 @@ do { \ pr_reg[7] = regs->ds; \ pr_reg[8] = regs->es; \ pr_reg[9] = regs->fs; \ + savesegment(gs, pr_reg[10]); \ pr_reg[11] = regs->orig_ax; \ pr_reg[12] = regs->ip; \ pr_reg[13] = regs->cs; \ @@ -136,18 +137,6 @@ do { \ pr_reg[16] = regs->ss; \ } while (0); -#define ELF_CORE_COPY_REGS(pr_reg, regs) \ -do { \ - ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\ - pr_reg[10] = get_user_gs(regs); \ -} while (0); - -#define ELF_CORE_COPY_KERNEL_REGS(pr_reg, regs) \ -do { \ - ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\ - savesegment(gs, pr_reg[10]); \ -} while (0); - #define ELF_PLATFORM (utsname()->machine) #define set_personality_64bit() do { } while (0)