This is an archive of the discontinued LLVM Phabricator instance.

Differential D43887

Write some tests as linker scripts instead of assembly files.
ClosedPublic

Authored by ruiu on Feb 28 2018, 11:06 AM.

Details

Reviewers
• rafael
grimar
Commits
rG2dfe49a44155: Write some tests as linker scripts instead of assembly files.
rL326363: Write some tests as linker scripts instead of assembly files.
rLLD326363: Write some tests as linker scripts instead of assembly files.
Summary

Some linker script test cases contain only a few lines of assembly
and a long linker script. Such tests are easier to maintain if we
write the main test file as a linkier script instead of assembly.

Diff Detail

Repository
rLLD LLVM Linker

Event Timeline

ruiu created this revision.Feb 28 2018, 11:06 AM
Herald added subscribers: arichardson, emaste. · View Herald TranscriptFeb 28 2018, 11:06 AM
Harbormaster completed remote builds in B15532: Diff 136342.Feb 28 2018, 11:06 AM
This revision was not accepted when it landed; it landed in state Needs Review.Feb 28 2018, 12:25 PM
Closed by commit rLLD326363: Write some tests as linker scripts instead of assembly files. (authored by ruiu). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents

PathSize
test/
ELF/
linkerscript/
82 lines
80 lines
18 lines
18 lines
12 lines
13 lines
103 lines
100 lines

Diff 136357

test/ELF/linkerscript/absolute-expr.s

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: echo "SECTIONS { \
# RUN: .text : { \
# RUN: bar1 = ALIGNOF(.text); \
# RUN: bar2 = CONSTANT (MAXPAGESIZE); \
# RUN: bar3 = SIZEOF (.text); \
# RUN: bar4 = SIZEOF_HEADERS; \
# RUN: bar5 = 0x42; \
# RUN: bar6 = foo + 1; \
# RUN: *(.text) \
# RUN: } \
# RUN: };" > %t.script
# RUN: ld.lld -o %t.so --script %t.script %t.o -shared
# RUN: llvm-readobj -t %t.so | FileCheck %s
.global foo
foo = 0x123
# CHECK: Symbol {
# CHECK: Name: foo
# CHECK-NEXT: Value: 0x123
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute (0xFFF1)
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar1
# CHECK-NEXT: Value: 0x4
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar2
# CHECK-NEXT: Value: 0x1000
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar3
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar4
# CHECK-NEXT: Value: 0x190
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar5
# CHECK-NEXT: Value: 0x42
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar6
# CHECK-NEXT: Value: 0x124
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global (0x1)
# CHECK-NEXT: Type: None (0x0)
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute (0xFFF1)
# CHECK-NEXT: }

test/ELF/linkerscript/absolute-expr.test

# REQUIRES: x86
# RUN: echo ".global foo; foo = 0x123" | llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t.o
# RUN: ld.lld -o %t.so --script %s %t.o -shared
# RUN: llvm-readobj -t %t.so | FileCheck %s
SECTIONS {
.text : {
bar1 = ALIGNOF(.text);
bar2 = CONSTANT (MAXPAGESIZE);
bar3 = SIZEOF (.text);
bar4 = SIZEOF_HEADERS;
bar5 = 0x42;
bar6 = foo + 1;
*(.text)
}
}
# CHECK: Symbol {
# CHECK: Name: foo
# CHECK-NEXT: Value: 0x123
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute (0xFFF1)
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar1
# CHECK-NEXT: Value: 0x4
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar2
# CHECK-NEXT: Value: 0x1000
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar3
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar4
# CHECK-NEXT: Value: 0x190
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar5
# CHECK-NEXT: Value: 0x42
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global
# CHECK-NEXT: Type: None
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: bar6
# CHECK-NEXT: Value: 0x124
# CHECK-NEXT: Size: 0
# CHECK-NEXT: Binding: Global (0x1)
# CHECK-NEXT: Type: None (0x0)
# CHECK-NEXT: Other: 0
# CHECK-NEXT: Section: Absolute (0xFFF1)
# CHECK-NEXT: }

test/ELF/linkerscript/align-empty.s

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: echo "SECTIONS { \
# RUN: . = SIZEOF_HEADERS; \
# RUN: abc : { } \
# RUN: . = ALIGN(0x1000); \
# RUN: foo : { *(foo) } \
# RUN: }" > %t.script
# RUN: ld.lld -o %t1 --script %t.script %t -shared
# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
# CHECK: Sections:
# CHECK-NEXT: Idx Name Size Address
# CHECK-NEXT: 0 00000000 0000000000000000
# CHECK-NEXT: 1 foo 00000001 0000000000001000
.section foo, "a"
.byte 0

test/ELF/linkerscript/align-empty.test

# REQUIRES: x86
# RUN: echo '.section foo, "a"; .byte 0' \
# RUN: | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t.o
# RUN: ld.lld -o %t1 --script %s %t.o -shared
# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
SECTIONS {
. = SIZEOF_HEADERS;
abc : {}
. = ALIGN(0x1000);
foo : { *(foo) }
}
# CHECK: Sections:
# CHECK-NEXT: Idx Name Size Address
# CHECK-NEXT: 0 00000000 0000000000000000
# CHECK-NEXT: 1 foo 00000001 0000000000001000

test/ELF/linkerscript/discard-interp.s

// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/../Inputs/shared.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: echo "PHDRS { text PT_LOAD FILEHDR PHDRS; } \
// RUN: SECTIONS { . = SIZEOF_HEADERS; .text : { *(.text) } : text }" > %t.script
// RUN: ld.lld -dynamic-linker /lib64/ld-linux-x86-64.so.2 -rpath foo -rpath bar --script %t.script --export-dynamic %t.o %t2.so -o %t
// RUN: llvm-readobj -s %t | FileCheck %s
// CHECK-NOT: Name: .interp
.global _start
_start:

test/ELF/linkerscript/discard-interp.test

# RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux /dev/null -o %t.o
# RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/../Inputs/shared.s -o %t2.o
# RUN: ld.lld -shared %t2.o -o %t2.so
# RUN: ld.lld -dynamic-linker foo -rpath bar -rpath baz --script %s --export-dynamic %t.o %t2.so -o %t
# RUN: llvm-readobj -s %t | FileCheck %s
# CHECK-NOT: Name: .interp
PHDRS { text PT_LOAD FILEHDR PHDRS; }
SECTIONS {
. = SIZEOF_HEADERS;
.text : { *(.text) } : text
}

test/ELF/linkerscript/operators.s

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: echo "SECTIONS { \
# RUN: _start = .; \
# RUN: plus = 1 + 2 + 3; \
# RUN: minus = 5 - 1; \
# RUN: div = 6 / 2; \
# RUN: mod = 20 % 7; \
# RUN: mul = 1 + 2 * 3; \
# RUN: nospace = 1+2*6/3; \
# RUN: braces = 1 + (2 + 3) * 4; \
# RUN: and = 0xbb & 0xee; \
# RUN: ternary1 = 1 ? 1 : 2; \
# RUN: ternary2 = 0 ? 1 : 2; \
# RUN: less = 1 < 0 ? 1 : 2; \
# RUN: lesseq = 1 <= 1 ? 1 : 2; \
# RUN: greater = 0 > 1 ? 1 : 2; \
# RUN: greatereq = 1 >= 1 ? 1 : 2; \
# RUN: eq = 1 == 1 ? 1 : 2; \
# RUN: neq = 1 != 1 ? 1 : 2; \
# RUN: plusassign = 1; \
# RUN: plusassign += 2; \
# RUN: unary = -1 + 3; \
# RUN: lshift = 1 << 5; \
# RUN: rshift = 0xff >> 3; \
# RUN: maxpagesize = CONSTANT (MAXPAGESIZE); \
# RUN: commonpagesize = CONSTANT (COMMONPAGESIZE); \
# RUN: . = 0xfff0; \
# RUN: datasegmentalign = DATA_SEGMENT_ALIGN (0xffff, 0); \
# RUN: datasegmentalign2 = DATA_SEGMENT_ALIGN (0, 0); \
# RUN: _end = .; \
# RUN: minus_rel = _end - 0x10; \
# RUN: minus_abs = _end - _start; \
# RUN: }" > %t.script
# RUN: ld.lld %t --script %t.script -o %t2
# RUN: llvm-objdump -t %t2 | FileCheck %s
# CHECK: 00000000000006 *ABS* 00000000 plus
# CHECK: 00000000000004 *ABS* 00000000 minus
# CHECK: 00000000000003 *ABS* 00000000 div
# CHECK: 00000000000006 *ABS* 00000000 mod
# CHECK: 00000000000007 *ABS* 00000000 mul
# CHECK: 00000000000005 *ABS* 00000000 nospace
# CHECK: 00000000000015 *ABS* 00000000 braces
# CHECK: 000000000000aa *ABS* 00000000 and
# CHECK: 00000000000001 *ABS* 00000000 ternary1
# CHECK: 00000000000002 *ABS* 00000000 ternary2
# CHECK: 00000000000002 *ABS* 00000000 less
# CHECK: 00000000000001 *ABS* 00000000 lesseq
# CHECK: 00000000000002 *ABS* 00000000 greater
# CHECK: 00000000000001 *ABS* 00000000 greatereq
# CHECK: 00000000000001 *ABS* 00000000 eq
# CHECK: 00000000000002 *ABS* 00000000 neq
# CHECK: 00000000000003 *ABS* 00000000 plusassign
# CHECK: 00000000000002 *ABS* 00000000 unary
# CHECK: 00000000000020 *ABS* 00000000 lshift
# CHECK: 0000000000001f *ABS* 00000000 rshift
# CHECK: 00000000001000 *ABS* 00000000 maxpagesize
# CHECK: 00000000001000 *ABS* 00000000 commonpagesize
# CHECK: 0000000000ffff *ABS* 00000000 datasegmentalign
# CHECK: 0000000000fff0 *ABS* 00000000 datasegmentalign2
# CHECK: 0000000000ffe0 .text 00000000 minus_rel
# CHECK: 0000000000fff0 *ABS* 00000000 minus_abs
## Mailformed number error.
# RUN: echo "SECTIONS { . = 0x12Q41; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=NUMERR %s
# NUMERR: malformed number: 0x12Q41
## Missing closing bracket.
# RUN: echo "SECTIONS { . = (1; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=BRACKETERR %s
# BRACKETERR: ) expected, but got ;
## Missing opening bracket.
# RUN: echo "SECTIONS { . = 1); }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=BRACKETERR2 %s
# BRACKETERR2: ; expected, but got )
## Empty expression.
# RUN: echo "SECTIONS { . = ; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=ERREXPR %s
# ERREXPR: malformed number: ;
## Div by zero error.
# RUN: echo "SECTIONS { . = 1 / 0; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=DIVZERO %s
# DIVZERO: division by zero
## Broken ternary operator expression.
# RUN: echo "SECTIONS { . = 1 ? 2; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=TERNERR %s
# TERNERR: : expected, but got ;
.globl _start
_start:
nop

test/ELF/linkerscript/operators.test

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux /dev/null -o %t
# RUN: ld.lld %t --script %s -o %t2
# RUN: llvm-objdump -t %t2 | FileCheck %s
SECTIONS {
_start = .;
plus = 1 + 2 + 3;
minus = 5 - 1;
div = 6 / 2;
mod = 20 % 7;
mul = 1 + 2 * 3;
nospace = 1+2*6/3;
braces = 1 + (2 + 3) * 4;
and = 0xbb & 0xee;
ternary1 = 1 ? 1 : 2;
ternary2 = 0 ? 1 : 2;
less = 1 < 0 ? 1 : 2;
lesseq = 1 <= 1 ? 1 : 2;
greater = 0 > 1 ? 1 : 2;
greatereq = 1 >= 1 ? 1 : 2;
eq = 1 == 1 ? 1 : 2;
neq = 1 != 1 ? 1 : 2;
plusassign = 1;
plusassign += 2;
unary = -1 + 3;
lshift = 1 << 5;
rshift = 0xff >> 3;
maxpagesize = CONSTANT (MAXPAGESIZE);
commonpagesize = CONSTANT (COMMONPAGESIZE);
. = 0xfff0;
datasegmentalign = DATA_SEGMENT_ALIGN (0xffff, 0);
datasegmentalign2 = DATA_SEGMENT_ALIGN (0, 0);
_end = .;
minus_rel = _end - 0x10;
minus_abs = _end - _start;
}
# CHECK: 00000000000006 *ABS* 00000000 plus
# CHECK: 00000000000004 *ABS* 00000000 minus
# CHECK: 00000000000003 *ABS* 00000000 div
# CHECK: 00000000000006 *ABS* 00000000 mod
# CHECK: 00000000000007 *ABS* 00000000 mul
# CHECK: 00000000000005 *ABS* 00000000 nospace
# CHECK: 00000000000015 *ABS* 00000000 braces
# CHECK: 000000000000aa *ABS* 00000000 and
# CHECK: 00000000000001 *ABS* 00000000 ternary1
# CHECK: 00000000000002 *ABS* 00000000 ternary2
# CHECK: 00000000000002 *ABS* 00000000 less
# CHECK: 00000000000001 *ABS* 00000000 lesseq
# CHECK: 00000000000002 *ABS* 00000000 greater
# CHECK: 00000000000001 *ABS* 00000000 greatereq
# CHECK: 00000000000001 *ABS* 00000000 eq
# CHECK: 00000000000002 *ABS* 00000000 neq
# CHECK: 00000000000003 *ABS* 00000000 plusassign
# CHECK: 00000000000002 *ABS* 00000000 unary
# CHECK: 00000000000020 *ABS* 00000000 lshift
# CHECK: 0000000000001f *ABS* 00000000 rshift
# CHECK: 00000000001000 *ABS* 00000000 maxpagesize
# CHECK: 00000000001000 *ABS* 00000000 commonpagesize
# CHECK: 0000000000ffff *ABS* 00000000 datasegmentalign
# CHECK: 0000000000fff0 *ABS* 00000000 datasegmentalign2
# CHECK: 0000000000ffe0 .text 00000000 minus_rel
# CHECK: 0000000000fff0 *ABS* 00000000 minus_abs
## Mailformed number error.
# RUN: echo "SECTIONS { . = 0x12Q41; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=NUMERR %s
# NUMERR: malformed number: 0x12Q41
## Missing closing bracket.
# RUN: echo "SECTIONS { . = (1; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=BRACKETERR %s
# BRACKETERR: ) expected, but got ;
## Missing opening bracket.
# RUN: echo "SECTIONS { . = 1); }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=BRACKETERR2 %s
# BRACKETERR2: ; expected, but got )
## Empty expression.
# RUN: echo "SECTIONS { . = ; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=ERREXPR %s
# ERREXPR: malformed number: ;
## Div by zero error.
# RUN: echo "SECTIONS { . = 1 / 0; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=DIVZERO %s
# DIVZERO: division by zero
## Broken ternary operator expression.
# RUN: echo "SECTIONS { . = 1 ? 2; }" > %t.script
# RUN: not ld.lld %t --script %t.script -o %t2 2>&1 | \
# RUN: FileCheck --check-prefix=TERNERR %s
# TERNERR: : expected, but got ;
test/ELF/linkerscript/discard-interp.s