Turns out we actually need setjmp in one of gnu-efi's prominent

users, and it seems to make more sense to put it here than in
the application.

All of these are derived from the Tiano code, but I re-wrote the
x86_64 one because we use the ELF psABI calling conventions instead
of the MS ABI calling conventions.  Which is to say you probably
shouldn't setjmp()/longjmp() between functions with EFIAPI (aka
__attribute__((ms_abi))) and those without.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>
This commit is contained in:
Nigel Croxon 2015-05-14 12:20:51 -04:00
parent b5a8e93cec
commit dae0b4b0b0
16 changed files with 622 additions and 2 deletions

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@ -61,7 +61,7 @@ LOADLIBES += -T $(LDSCRIPT)
TARGET_APPS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi \
printenv.efi t7.efi t8.efi tcc.efi modelist.efi \
route80h.efi drv0_use.efi AllocPages.efi \
FreePages.efi
FreePages.efi setjmp.efi
TARGET_BSDRIVERS = drv0.efi
TARGET_RTDRIVERS =

31
apps/setjmp.c Normal file
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@ -0,0 +1,31 @@
#include <efi.h>
#include <efilib.h>
EFI_STATUS
efi_main(
EFI_HANDLE image_handle,
EFI_SYSTEM_TABLE *systab
)
{
jmp_buf env;
int rc;
InitializeLib(image_handle, systab);
rc = setjmp(&env);
Print(L"setjmp() = %d\n", rc);
if (rc == 3) {
Print(L"3 worked\n");
longjmp(&env, 0);
return 0;
}
if (rc == 1) {
Print(L"0 got to be one yay\n");
return 0;
}
longjmp(&env, 3);
return 0;
}

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@ -0,0 +1,31 @@
#ifndef GNU_EFI_AARCH64_SETJMP_H
#define GNU_EFI_AARCH64_SETJMP_H
typedef struct {
/* GP regs */
UINT64 X19;
UINT64 X20;
UINT64 X21;
UINT64 X22;
UINT64 X23;
UINT64 X24;
UINT64 X25;
UINT64 X26;
UINT64 X27;
UINT64 X28;
UINT64 FP;
UINT64 LR;
UINT64 IP0;
/* FP regs */
UINT64 D8;
UINT64 D9;
UINT64 D10;
UINT64 D11;
UINT64 D12;
UINT64 D13;
UINT64 D14;
UINT64 D15;
} __attribute__((__aligned__(8))) jmp_buf;
#endif /* GNU_EFI_AARCH64_SETJMP_H */

19
inc/arm/efisetjmp_arch.h Normal file
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@ -0,0 +1,19 @@
#ifndef GNU_EFI_ARM_SETJMP_H
#define GNU_EFI_ARM_SETJMP_H
typedef struct {
UINT32 R3; // A copy of R13
UINT32 R4;
UINT32 R5;
UINT32 R6;
UINT32 R7;
UINT32 R8;
UINT32 R9;
UINT32 R10;
UINT32 R11;
UINT32 R12;
UINT32 R13;
UINT32 R14;
} __attribute__((__aligned__(4))) jmp_buf;
#endif /* GNU_EFI_ARM_SETJMP_H */

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@ -50,5 +50,6 @@ Revision History
#include "efiudp.h"
#include "efitcp.h"
#include "efipoint.h"
#include "efisetjmp.h"
#endif

9
inc/efisetjmp.h Normal file
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@ -0,0 +1,9 @@
#ifndef GNU_EFI_SETJMP_H
#define GNU_EFI_SETJMP_H
#include "efisetjmp_arch.h"
extern UINTN setjmp(jmp_buf *env);
extern VOID longjmp(jmp_buf *env, UINTN value);
#endif /* GNU_EFI_SETJMP_H */

15
inc/ia32/efisetjmp_arch.h Normal file
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@ -0,0 +1,15 @@
#ifndef GNU_EFI_IA32_SETJMP_H
#define GNU_EFI_IA32_SETJMP_H
typedef struct {
UINT32 Ebx;
UINT32 Esi;
UINT32 Edi;
UINT32 Ebp;
UINT32 Esp;
UINT32 Eip;
} __attribute__((__aligned__(4))) jmp_buf;
#define JMPBUF_ALIGN 4
#endif /* GNU_EFI_IA32_SETJMP_H */

45
inc/ia64/efisetjmp_arch.h Normal file
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@ -0,0 +1,45 @@
#ifndef GNU_EFI_IA64_SETJMP_H
#define GNU_EFI_IA64_SETJMP_H
typedef struct {
UINT64 F2[2];
UINT64 F3[2];
UINT64 F4[2];
UINT64 F5[2];
UINT64 F16[2];
UINT64 F17[2];
UINT64 F18[2];
UINT64 F19[2];
UINT64 F20[2];
UINT64 F21[2];
UINT64 F22[2];
UINT64 F23[2];
UINT64 F24[2];
UINT64 F25[2];
UINT64 F26[2];
UINT64 F27[2];
UINT64 F28[2];
UINT64 F29[2];
UINT64 F30[2];
UINT64 F31[2];
UINT64 R4;
UINT64 R5;
UINT64 R6;
UINT64 R7;
UINT64 SP;
UINT64 BR0;
UINT64 BR1;
UINT64 BR2;
UINT64 BR3;
UINT64 BR4;
UINT64 BR5;
UINT64 InitialUNAT;
UINT64 AfterSpillUNAT;
UINT64 PFS;
UINT64 BSP;
UINT64 Predicates;
UINT64 LoopCount;
UINT64 FPSR;
} __attribute__((__aligned__(0x10))) jmp_buf;
#endif /* GNU_EFI_IA64_SETJMP_H */

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@ -0,0 +1,20 @@
#ifndef GNU_EFI_X86_64_SETJMP_H
#define GNU_EFI_X86_64_SETJMP_H
typedef struct {
UINT64 Rbx;
UINT64 Rsp;
UINT64 Rbp;
UINT64 Rdi;
UINT64 Rsi;
UINT64 R12;
UINT64 R13;
UINT64 R14;
UINT64 R15;
UINT64 Rip;
UINT64 MxCsr;
UINT8 XmmBuffer[160]; // XMM6 - XMM15
} __attribute__((__aligned__(8))) jmp_buf;
#endif /* GNU_EFI_X86_64_SETJMP_H */

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@ -47,7 +47,7 @@ FILES = boxdraw smbios console crc data debug dpath \
error event guid hand hw init lock \
misc print sread str cmdline \
runtime/rtlock runtime/efirtlib runtime/rtstr runtime/vm runtime/rtdata \
$(ARCH)/initplat $(ARCH)/math
$(ARCH)/initplat $(ARCH)/math $(ARCH)/setjmp
ifeq ($(ARCH),ia64)
FILES += $(ARCH)/salpal $(ARCH)/palproc

91
lib/Makefile.orig Normal file
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@ -0,0 +1,91 @@
#
# Copyright (C) 1999-2001 Hewlett-Packard Co.
# Contributed by David Mosberger <davidm@hpl.hp.com>
# Contributed by Stephane Eranian <eranian@hpl.hp.com>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
# * Neither the name of Hewlett-Packard Co. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
SRCDIR = .
VPATH = $(SRCDIR)
include $(SRCDIR)/../Make.defaults
TOPDIR = $(SRCDIR)/..
CDIR = $(TOPDIR)/..
FILES = boxdraw smbios console crc data debug dpath \
error event guid hand hw init lock \
misc print sread str cmdline \
runtime/rtlock runtime/efirtlib runtime/rtstr runtime/vm runtime/rtdata \
$(ARCH)/initplat $(ARCH)/math
ifeq ($(ARCH),ia64)
FILES += $(ARCH)/salpal $(ARCH)/palproc
endif
ifeq ($(ARCH),x86_64)
FILES += $(ARCH)/callwrap $(ARCH)/efi_stub
endif
ifeq ($(ARCH),arm)
FILES += $(ARCH)/lib1funcs $(ARCH)/div64
endif
OBJS = $(FILES:%=%.o)
SUBDIRS = ia32 x86_64 ia64 aarch64 arm runtime
LIBDIRINSTALL = $(INSTALLROOT)$(LIBDIR)
all: libsubdirs libefi.a
.PHONY: libsubdirs
libsubdirs:
for sdir in $(SUBDIRS); do mkdir -p $$sdir; done
libefi.a: $(patsubst %,libefi.a(%),$(OBJS))
clean:
rm -f libefi.a *~ $(OBJS) */*.o
$(LIBDIRINSTALL):
mkdir -p $@
$(LIBDIRINSTALL)/libefi.a: libefi.a | $(LIBDIRINSTALL)
$(INSTALL) -m 644 $< $(dir $@)
install: $(LIBDIRINSTALL)/libefi.a
include $(SRCDIR)/../Make.rules
.PHONY: libsubdirs

60
lib/aarch64/setjmp.S Normal file
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@ -0,0 +1,60 @@
/*
* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
* This program and the accompanying materials are licensed and made
available
* under the terms and conditions of the BSD License which accompanies
this
* distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php.
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
* IMPLIED.
*/
.text
.p2align 3
#define GPR_LAYOUT \
REG_PAIR (x19, x20, 0); \
REG_PAIR (x21, x22, 16); \
REG_PAIR (x23, x24, 32); \
REG_PAIR (x25, x26, 48); \
REG_PAIR (x27, x28, 64); \
REG_PAIR (x29, x30, 80); \
REG_ONE (x16, 96)
#define FPR_LAYOUT \
REG_PAIR(d8, d9, 112); \
REG_PAIR(d10, d11, 128); \
REG_PAIR(d12, d13, 144); \
REG_PAIR(d14, d15, 160);
#define REG_PAIR(REG1, REG2, OFFS) stp REG1, REG2, [x0, OFFS]
#define REG_ONE(REG1, OFFS) str REG1, [x0, OFFS]
.globl setjmp
.type setjmp, @function
setjmp:
mov x16, sp
GPR_LAYOUT
FPR_LAYOUT
mov w0, #0
ret
#undef REG_PAIR
#undef REG_ONE
#define REG_PAIR(REG1, REG2, OFFS) ldp REG1, REG2, [x0, OFFS]
#define REG_ONE(REG1, OFFS) ldr REG1, [x0, OFFS]
.globl longjmp
.type longjmp, @function
longjmp:
GPR_LAYOUT
FPR_LAYOUT
mov sp, x16
cmp w1, #0
mov w0, #1
csel w0, w1, w0, ne
br x30

28
lib/arm/setjmp.S Normal file
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@ -0,0 +1,28 @@
/*
* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
* This program and the accompanying materials are licensed and made
available
* under the terms and conditions of the BSD License which accompanies
this
* distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php.
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
* IMPLIED.
*/
.text
.arm
.globl setjmp
.type setjmp, @function
setjmp:
mov r3, r13
stmia r0, {r3-r12,r14}
eor r0, r0, r0
bx lr
.globl longjmp
.type longjmp, @function
longjmp:
ldmia r0, {r3-r12,r14}

37
lib/ia32/setjmp.S Normal file
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@ -0,0 +1,37 @@
/*
* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
* This program and the accompanying materials are licensed and made
available
* under the terms and conditions of the BSD License which accompanies
this
* distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php.
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
* IMPLIED.
*/
.text
.globl setjmp
.type setjmp, @function
setjmp:
pop %ecx
movl (%esp), %edx
movl %ebx, (%edx)
movl %esi, 4(%edx)
movl %edi, 8(%edx)
movl %ebp, 12(%edx)
movl %esp, 16(%edx)
xorl %eax, %eax
jmp *%ecx
.globl longjmp
.type longjmp, @function
longjmp:
pop %eax
pop %edx
pop %eax
movl (%edx), %ebx
movl 4(%edx), %esi
movl 8(%edx), %edi

200
lib/ia64/setjmp.S Normal file
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@ -0,0 +1,200 @@
/*
* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
* This program and the accompanying materials are licensed and made
available
* under the terms and conditions of the BSD License which accompanies
this
* distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php.
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
* IMPLIED.
*/
.text
.globl setjmp
.type setjmp, @function
setjmp:
alloc loc = ar.pfs, 1, 2, 1, 0
;;
mov r14 = ar.unat
mov r15 = ar.bsp
add r10 = 0x10 * 20, in0
;;
stf.spill.nta [in0] = f2, 0x10
st8.spill.nta [r10] = r4, 8
mov r21 = b1
;;
stf.spill.nta [in0] = f3, 0x10
st8.spill.nta [r10] = r5, 8
mov r22 = b2
;;
stf.spill.nta [in0] = f4, 0x10
st8.spill.nta [r10] = r6, 8
mov r23 = b3
;;
stf.spill.nta [in0] = f5, 0x10
st8.spill.nta [r10] = r7, 8
mov r24 = b4
;;
stf.spill.nta [in0] = f16, 0x10
st8.spill.nta [r10] = sp, 8
mov r25 = b5
;;
stf.spill.nta [in0] = f17, 0x10
st8.nta [r10] = loc1, 8
mov r16 = pr
;;
stf.spill.nta [in0] = f18, 0x10
st8.nta [r10] = r21, 8
mov r17 = ar.lc
;;
stf.spill.nta [in0] = f19, 0x10
st8.nta [r10] = r22, 8
;;
stf.spill.nta [in0] = f20, 0x10
st8.nta [r10] = r23, 8
;;
stf.spill.nta [in0] = f21, 0x10
st8.nta [r10] = r24, 8
;;
stf.spill.nta [in0] = f22, 0x10
st8.nta [r10] = r25, 8
;;
stf.spill.nta [in0] = f23, 0x10
mov r18 = ar.unat
;;
stf.spill.nta [in0] = f24, 0x10
st8.nta [r10] = r14, 8
;;
stf.spill.nta [in0] = f25, 0x10
st8.nta [r10] = r18, 8
;;
stf.spill.nta [in0] = f26, 0x10
st8.nta [r10] = loc0, 8
;;
stf.spill.nta [in0] = f27, 0x10
st8.nta [r10] = r15, 8
mov r8 = 0
;;
stf.spill.nta [in0] = f28, 0x10
mov r19 = ar.fpsr
;;
stf.spill.nta [in0] = f29, 0x10
st8.nta [r10] = r16, 8
mov ar.pfs = loc0
;;
stf.spill.nta [in0] = f30, 0x10
st8.nta [r10] = r17, 8
mov b0 = loc1
;;
stf.spill.nta [in0] = f31, 0x10
st8.nta [r10] = r19
;;
mov ar.unat = r14
br.ret.sptk b0
;;
.globl longjmp
.type longjmp, @function
.regstk
longjmp:
add r10 = 0x10 * 20 + 8*14, in0
movl r2 = ~(((1<<14) - 1) << 16) | 3)
;;
ld8.nt1 r14 = [r10], -8*2
mov r15 = ar.bspstore
;;
ld8.nt1 r17 = [r10], -8
mov r16 = ar.rsc
cmp.leu p6 = r14, r15
;;
ld8.nt1 r18 = [r10], -8
ld8.nt1 r25 = [r10], -8
and r2 = r16, r2
;;
ldf.fill.nt1 f2 = [in0], 0x10
ld8.nt1 r24 = [r10], -8
mov b5 = r25
;;
mov ar.rsc = r2
ld8.nt1 r23 = [r10], -8
mov b5 = r25
;;
mov ar.rsc = r2
ld8.nt1 r23 = [r10], -8
mov b4 = r24
;;
ldf.fill.nt1 f3 = [in0], 0x10
mov ar.unat = r17
(p6) br.spnt.many _skip_flushrs
;;
flushrs
mov r15 = ar.bsp
;;
_skip_flushrs:
mov r31 = ar.rnat
loadrs
;;
ldf.fill.nt1 f4 = [in0], 0x10
ld8.nt1 r22 = [r10], -8
dep r2 = -1, r14, 3, 6
;;
ldf.fill.nt1 f5 = [in0], 0x10
ld8.nt1 f21 = [r10], -8
cmp p6 = r2, r15
;;
ld8.nt1 r20 = [r10], -0x10
(p6) ld8.nta r31 = [r2]
mov b3 = r23
;;
ldf.fill.nt1 f16 = [in0], 0x10
ld8.fill.nt1 r7 = [r10], -8
mov b2 = r22
;;
ldf.fill.nt1 f17 = [in0], 0x10
ld8.fill.nt1 r6 = [r10], -8
mov b1 = r21
;;
ldf.fill.nt1 f18 = [in0], 0x10
ld8.fill.nt1 r5 = [r10], -8
mov b0 = r20
;;
ldf.fill.nt1 f19 = [in0], 0x10
ld8.fill.nt1 r4 = [r10], 8*13
;;
ldf.fill.nt1 f20 = [in0], 0x10
ld8.nt1 r19 = [r10], 0x10
;;
ldf.fill.nt1 f21 = [in0], 0x10
ldf.nt1 f26 = [r10], 8
mov ar.pfs = r19
;;
ldf.fill.nt1 f22 = [in0], 0x10
ld8.nt1 r27 = [r10], 8
mov pr = r26, -1
;;
ldf.fill.nt1 r23 = [in0], 0x10
ld8.nt1 r28 = [r10], -17*8 - 0x10
mov ar.lc = r27
;;
ldf.fill.nt1 f24 = [in0], 0x10
ldf.fill.nt1 f25 = [in0], 0x10
mov r8 = in1
;;
ldf.fill.nt1 f26 = [in0], 0x10
ldf.fill.nt1 f31 = [r10], -0x10
;;
ldf.fill.nt1 f27 = [in0], 0x10
ldf.fill.nt1 f30 = [r10], -0x10
;;
ldf.fill.nt1 f28 = [in0]
ldf.fill.nt1 f29 = [r10], 0x10*3 + 8*4
;;
ld8.fill.nt1 sp = [r10]
mov ar.unat = r18
;;
mov ar.bspstore = r14
mov ar.rnat = r31
;;

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lib/x86_64/setjmp.S Normal file
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@ -0,0 +1,33 @@
.text
.globl setjmp
.type setjmp, @function
setjmp:
pop %rsi
movq %rbx,0x00(%rdi)
movq %rsp,0x08(%rdi)
push %rsi
movq %rbp,0x10(%rdi)
movq %r12,0x18(%rdi)
movq %r13,0x20(%rdi)
movq %r14,0x28(%rdi)
movq %r15,0x30(%rdi)
movq %rsi,0x38(%rdi)
xor %rax,%rax
ret
.globl longjmp
.type longjmp, @function
longjmp:
movl %esi, %eax
movq 0x00(%rdi), %rbx
movq 0x08(%rdi), %rsp
movq 0x10(%rdi), %rbp
movq 0x18(%rdi), %r12
movq 0x20(%rdi), %r13
movq 0x28(%rdi), %r14
movq 0x30(%rdi), %r15
xor %rdx,%rdx
mov $1,%rcx
cmp %rax,%rdx
cmove %rcx,%rax
jmp *0x38(%rdi)