Clean checkin of the 6.03 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android-8.0.0_r10android-8.0.0_r1security-oc-releasesecurity-oc-mr1-releaseoreo-vts-releaseoreo-security-releaseoreo-releaseoreo-r6-releaseoreo-r5-releaseoreo-r4-releaseoreo-r3-releaseoreo-r2-releaseoreo-mr1-wear-releaseoreo-mr1-vts-releaseoreo-mr1-security-releaseoreo-mr1-s1-releaseoreo-mr1-releaseoreo-mr1-iot-releaseoreo-mr1-devoreo-mr1-cuttlefish-testingoreo-mr1-cts-releaseoreo-mr1-1.2-iot-releaseoreo-m8-releaseoreo-m7-releaseoreo-m6-s4-releaseoreo-m6-s3-releaseoreo-m6-s2-releaseoreo-m5-releaseoreo-m4-s9-releaseoreo-m4-s8-releaseoreo-m4-s7-releaseoreo-m4-s6-releaseoreo-m4-s5-releaseoreo-m4-s4-releaseoreo-m4-s3-releaseoreo-m4-s2-releaseoreo-m4-s12-releaseoreo-m4-s11-releaseoreo-m4-s10-releaseoreo-m4-s1-releaseoreo-m3-releaseoreo-m2-s5-releaseoreo-m2-s4-releaseoreo-m2-s3-releaseoreo-m2-s2-releaseoreo-m2-s1-releaseoreo-m2-releaseoreo-dr3-releaseoreo-dr2-releaseoreo-dr1-releaseoreo-dr1-devoreo-devoreo-cts-releaseo-preview-4o-preview-3o-preview-2o-mr1-iot-preview-8o-mr1-iot-preview-7o-mr1-iot-preview-6o-iot-preview-5

BUG: 32495852
Change-Id: I5038a3bb41e217380c1188463daec07b1e9b6b48

1 files changed, 189 insertions, 0 deletions

diff --git a/gnu-efi/gnu-efi-3.0/lib/x86_64/efi_stub.S b/gnu-efi/gnu-efi-3.0/lib/x86_64/efi_stub.S
new file mode 100644
index 0000000..b431255
--- /dev/null
+++ b/gnu-efi/gnu-efi-3.0/lib/x86_64/efi_stub.S
@@ -0,0 +1,189 @@
+/*
+ * Function calling ABI conversion from Linux to EFI for x86_64
+ *
+ * Copyright (C) 2007 Intel Corp
+ *	Bibo Mao <bibo.mao@intel.com>
+ *	Huang Ying <ying.huang@intel.com>
+ * Copyright (C) 2012 Felipe Contreras <felipe.contreras@gmail.com>
+ */
+
+#if !defined(HAVE_USE_MS_ABI)
+/*
+ * EFI calling conventions are documented at:
+ *   http://msdn.microsoft.com/en-us/library/ms235286%28v=vs.80%29.aspx
+ * ELF calling conventions are documented at:
+ *   http://www.x86-64.org/documentation/abi.pdf
+ *
+ * Basically here are the conversion rules:
+ * a) our function pointer is in %rdi
+ * b) rsi through r8 (elf) aka rcx through r9 (ms) require stack space
+ *    on the MS side even though it's not getting used at all.
+ * c) 8(%rsp) is always aligned to 16 in ELF, so %rsp is shifted 8 bytes extra
+ * d) arguments are as follows: (elf -> ms)
+ *   1) rdi -> rcx (32 saved)
+ *   2) rsi -> rdx (32 saved)
+ *   3) rdx -> r8 (32 saved)
+ *   4) rcx -> r9 (32 saved)
+ *   5) r8 -> 32(%rsp) (32 saved)
+ *   6) r9 -> 40(%rsp) (48 saved)
+ *   7) 8(%rsp) -> 48(%rsp) (48 saved)
+ *   8) 16(%rsp) -> 56(%rsp) (64 saved)
+ *   9) 24(%rsp) -> 64(%rsp) (64 saved)
+ *  10) 32(%rsp) -> 72(%rsp) (80 saved)
+ * e) because the first argument we recieve in a thunker is actually the
+ *    function to be called, arguments are offset as such:
+ *   0) rdi -> caller
+ *   1) rsi -> rcx (32 saved)
+ *   2) rdx -> rdx (32 saved)
+ *   3) rcx -> r8 (32 saved)
+ *   4) r8 -> r9 (32 saved)
+ *   5) r9 -> 32(%rsp) (32 saved)
+ *   6) 8(%rsp) -> 40(%rsp) (48 saved)
+ *   7) 16(%rsp) -> 48(%rsp) (48 saved)
+ *   8) 24(%rsp) -> 56(%rsp) (64 saved)
+ *   9) 32(%rsp) -> 64(%rsp) (64 saved)
+ *  10) 40(%rsp) -> 72(%rsp) (80 saved)
+ * f) arguments need to be moved in opposite order to avoid clobbering
+ */
+
+#define ENTRY(name)	\
+	.globl name;	\
+	name:
+
+ENTRY(efi_call0)
+	subq $40, %rsp
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call1)
+	subq $40, %rsp
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call2)
+	subq $40, %rsp
+	/* mov %rdx, %rdx */
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call3)
+	subq $40, %rsp
+	mov  %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov  %rsi, %rcx
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call4)
+	subq $40, %rsp
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call5)
+	subq $40, %rsp
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $40, %rsp
+	ret
+
+ENTRY(efi_call6)
+	subq $56, %rsp
+	mov 56+8(%rsp), %rax
+	mov %rax, 40(%rsp)
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $56, %rsp
+	ret
+
+ENTRY(efi_call7)
+	subq $56, %rsp
+	mov 56+16(%rsp), %rax
+	mov %rax, 48(%rsp)
+	mov 56+8(%rsp), %rax
+	mov %rax, 40(%rsp)
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $56, %rsp
+	ret
+
+ENTRY(efi_call8)
+	subq $72, %rsp
+	mov 72+24(%rsp), %rax
+	mov %rax, 56(%rsp)
+	mov 72+16(%rsp), %rax
+	mov %rax, 48(%rsp)
+	mov 72+8(%rsp), %rax
+	mov %rax, 40(%rsp)
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $72, %rsp
+	ret
+
+ENTRY(efi_call9)
+	subq $72, %rsp
+	mov 72+32(%rsp), %rax
+	mov %rax, 64(%rsp)
+	mov 72+24(%rsp), %rax
+	mov %rax, 56(%rsp)
+	mov 72+16(%rsp), %rax
+	mov %rax, 48(%rsp)
+	mov 72+8(%rsp), %rax
+	mov %rax, 40(%rsp)
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $72, %rsp
+	ret
+
+ENTRY(efi_call10)
+	subq $88, %rsp
+	mov 88+40(%rsp), %rax
+	mov %rax, 72(%rsp)
+	mov 88+32(%rsp), %rax
+	mov %rax, 64(%rsp)
+	mov 88+24(%rsp), %rax
+	mov %rax, 56(%rsp)
+	mov 88+16(%rsp), %rax
+	mov %rax, 48(%rsp)
+	mov 88+8(%rsp), %rax
+	mov %rax, 40(%rsp)
+	mov %r9, 32(%rsp)
+	mov %r8, %r9
+	mov %rcx, %r8
+	/* mov %rdx, %rdx */
+	mov %rsi, %rcx
+	call *%rdi
+	addq $88, %rsp
+	ret
+
+#endif