[PATCH 2/4] arm64: Track the sigreturn landing pad location
From: <hidden>
Date: 2021-05-29 08:17:00
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: Ryan Houdek <redacted> This will be required once userspace dispatch is implemented Signed-off-by: Ryan Houdek <redacted> --- arch/arm64/kernel/vdso/sigreturn.S | 1 + arch/arm64/kernel/vdso/vdso.lds.S | 1 + 2 files changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/vdso/sigreturn.S b/arch/arm64/kernel/vdso/sigreturn.S
index 0e18729abc3b..44ed8c5486d0 100644
--- a/arch/arm64/kernel/vdso/sigreturn.S
+++ b/arch/arm64/kernel/vdso/sigreturn.S@@ -73,6 +73,7 @@ SYM_CODE_START(__kernel_rt_sigreturn) mov x8, #__NR_rt_sigreturn // PLEASE DO NOT MODIFY svc #0 +SYM_INNER_LABEL(__kernel_vdso_sigreturn_landing_pad, SYM_L_GLOBAL) // PLEASE DO NOT MODIFY // .cfi_endproc SYM_CODE_END(__kernel_rt_sigreturn)
diff --git a/arch/arm64/kernel/vdso/vdso.lds.S b/arch/arm64/kernel/vdso/vdso.lds.S
index a5e61e09ea92..65d2bd880e2f 100644
--- a/arch/arm64/kernel/vdso/vdso.lds.S
+++ b/arch/arm64/kernel/vdso/vdso.lds.S@@ -91,3 +91,4 @@ VERSION * Make the sigreturn code visible to the kernel. */ VDSO_sigtramp = __kernel_rt_sigreturn; +VDSO_vdso_sigreturn_landing_pad = __kernel_vdso_sigreturn_landing_pad;
--
2.30.2
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