1 ## Check we can use "SectionHeaderTable" tag to reorder section header entries.
3 ## This is a general test that has sections with unique prefixes, a fill and a
4 ## section without the unique prefix. The section header table describes sections
5 ## in the same order they are listed in the YAML.
6 # RUN: yaml2obj %s --docnum=1 -o %t1 -DSEC1=".section (1)" -DSEC2=".section (2)" -DSEC3=".section.foo"
7 # RUN: llvm-readelf --section-headers %t1 | FileCheck %s --check-prefix=NO-OP
9 # NO-OP: Section Headers:
10 # NO-OP-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
11 # NO-OP-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
12 # NO-OP-NEXT: [ 1] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0
13 # NO-OP-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0
14 # NO-OP-NEXT: [ 3] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0
15 # NO-OP-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1
16 # NO-OP-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 00 0 0 1
37 - Type: SectionHeaderTable
45 ## Show we are able to reorder sections.
46 # RUN: yaml2obj %s -o %t2 -DSEC3=".section (1)" -DSEC2=".section (2)" -DSEC1=".section.foo"
47 # RUN: llvm-readelf --section-headers %t2 | FileCheck %s --check-prefix=REORDERED
49 # REORDERED: Section Headers:
50 # REORDERED-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
51 # REORDERED-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
52 # REORDERED-NEXT: [ 1] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0
53 # REORDERED-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0
54 # REORDERED-NEXT: [ 3] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0
55 # REORDERED-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1
56 # REORDERED-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 00 0 0 1
58 ## Show we report proper errors when the section header description:
59 ## a) contains a repeated section name.
60 ## b) omits any section that exists.
61 ## c) contains a non-existent section.
62 # RUN: not yaml2obj %s -o /dev/null -DSEC1=".section.foo" -DSEC2="unknown" -DSEC3=".section.foo" 2>&1 | \
63 # RUN: FileCheck %s --check-prefix=ERR1
64 # d) contains a repeated implicit section name.
65 # e) contains a fill name.
66 # RUN: not yaml2obj %s -o /dev/null -DSEC1=".strtab" -DSEC2=".shstrtab" -DSEC3=".filler" 2>&1 | \
67 # RUN: FileCheck %s --check-prefix=ERR2
69 # ERR1: error: repeated section name: '.section.foo' in the section header description
70 # ERR1-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists
71 # ERR1-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists
72 # ERR1-NEXT: error: section header contains undefined section 'unknown'
74 # ERR2: error: repeated section name: '.strtab' in the section header description
75 # ERR2-NEXT: error: repeated section name: '.shstrtab' in the section header description
76 # ERR2-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists
77 # ERR2-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists
78 # ERR2-NEXT: error: section '.section.foo' should be present in the 'Sections' or 'Excluded' lists
79 # ERR2-NEXT: error: section header contains undefined section '.filler'
81 ## Check that when the an empty "Sections" list is used, we do not create an empty section header table.
82 # RUN: not yaml2obj %s --docnum=2 -o /dev/null 2>&1 | FileCheck %s --check-prefix=EMPTY-SECTIONS
84 # EMPTY-SECTIONS: error: section '.foo' should be present in the 'Sections' or 'Excluded' lists
85 # EMPTY-SECTIONS-NEXT: error: section '.strtab' should be present in the 'Sections' or 'Excluded' lists
86 # EMPTY-SECTIONS-NEXT: error: section '.shstrtab' should be present in the 'Sections' or 'Excluded' lists
96 - Type: SectionHeaderTable
99 ## Test that we are able to use "NoHeaders" property to produce an empty section header table.
100 # RUN: yaml2obj %s --docnum=3 -DNOHEADERS=true -o %t3.1
101 # RUN: llvm-readelf --file-headers %t3.1 | FileCheck %s --check-prefix=NO-HEADERS-TRUE
103 # NO-HEADERS-TRUE: Start of section headers: 0 (bytes into file)
104 # NO-HEADERS-TRUE: Size of section headers: 64 (bytes)
105 # NO-HEADERS-TRUE: Number of section headers: 0
106 # NO-HEADERS-TRUE: Section header string table index: 0
116 - Type: SectionHeaderTable
117 NoHeaders: [[NOHEADERS]]
119 ## Test that we are able to set NoHeaders to false. In this case the tool produces an output
120 ## as if there were no `SectionHeaderTable` key at all.
121 # RUN: yaml2obj %s --docnum=3 -DNOHEADERS=false -o %t3.2
122 # RUN: llvm-readelf --file-headers --sections %t3.2 | FileCheck %s --check-prefix=NO-HEADERS-FALSE
124 # NO-HEADERS-FALSE: Start of section headers: 96 (bytes into file)
125 # NO-HEADERS-FALSE: Size of section headers: 64 (bytes)
126 # NO-HEADERS-FALSE: Number of section headers: 4
127 # NO-HEADERS-FALSE: Section header string table index: 3
129 # NO-HEADERS-FALSE: Section Headers:
130 # NO-HEADERS-FALSE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
131 # NO-HEADERS-FALSE-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
132 # NO-HEADERS-FALSE-NEXT: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0 0 0
133 # NO-HEADERS-FALSE-NEXT: [ 2] .strtab STRTAB 0000000000000000 000040 000001 00 0 0 1
134 # NO-HEADERS-FALSE-NEXT: [ 3] .shstrtab STRTAB 0000000000000000 000041 000018 00 0 0 1
136 ## Check we do not allow using "Sections" together with "NoHeaders".
137 # RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=true -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS
138 # RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=false -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS
140 # SECTIONS-NO-HEADERS: error: NoHeaders can't be used together with Offset/Sections/Excluded
150 - Type: SectionHeaderTable
152 NoHeaders: [[NOHEADERS]]
154 ## Check that we allow using an empty SectionHeaderTable definition.
155 ## It can be used to emit the default section header table at an arbitrary position.
157 # RUN: yaml2obj %s --docnum=5 -o %t5.novalues
158 # RUN: llvm-readelf --sections %t5.novalues | \
159 # RUN: FileCheck %s --check-prefix=NO-VALUES
161 ## Check we placed the section header table before the .foo section.
163 # NO-VALUES: There are 4 section headers, starting at offset 0x40:
164 # NO-VALUES: [Nr] Name Type Address Off Size
165 # NO-VALUES: [ 1] .foo PROGBITS 0000000000000000 000140 000000
173 - Type: SectionHeaderTable
177 ## Test that we are still able to override e_shoff, e_shnum and e_shstrndx
178 ## fields even when we do not produce section headers.
179 # RUN: yaml2obj %s --docnum=6 -o %t4
180 # RUN: not llvm-readelf --file-headers %t4 | FileCheck %s --check-prefix=NO-HEADERS-OVERRIDE
182 # NO-HEADERS-OVERRIDE: Start of section headers: 2 (bytes into file)
183 # NO-HEADERS-OVERRIDE: Number of section headers: 3
184 # NO-HEADERS-OVERRIDE: Section header string table index: 4
195 - Type: SectionHeaderTable
198 ## Check that section indices are updated properly in other places when we
199 ## reorder sections in the section header table.
200 # RUN: yaml2obj %s --docnum=7 -o %t5 -DSEC1=".foo" -DSEC2=".bar"
201 # RUN: llvm-readelf --section-headers --symbols %t5 | FileCheck %s --check-prefix=INDICES-A
202 # RUN: yaml2obj %s --docnum=7 -o %t6 -DSEC2=".foo" -DSEC1=".bar"
203 # RUN: llvm-readelf --section-headers --symbols %t6 | FileCheck %s --check-prefix=INDICES-B
205 # INDICES-A: [Nr] Name Type Address Off Size ES Flg Lk
206 # INDICES-A: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0
207 # INDICES-A-NEXT: [ 2] .bar PROGBITS 0000000000000000 000040 000000 00 0
208 # INDICES-A-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 1
209 # INDICES-A-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 2
211 # INDICES-A: Num: Value Size Type Bind Vis Ndx Name
212 # INDICES-A: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 foo
213 # INDICES-A-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 bar
215 # INDICES-B: [ 1] .bar PROGBITS 0000000000000000 000040 000000 00 0
216 # INDICES-B-NEXT: [ 2] .foo PROGBITS 0000000000000000 000040 000000 00 0
217 # INDICES-B-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 2
218 # INDICES-B-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 1
220 # INDICES-B: Num: Value Size Type Bind Vis Ndx Name
221 # INDICES-B: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 foo
222 # INDICES-B-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 bar
240 - Type: SectionHeaderTable
255 ## Check that when "NoHeaders" is set to "true" then we don't emit
256 ## the .shstrtab section implicitly and don't write the data of the
257 ## section header table to the file.
259 # RUN: yaml2obj %s --docnum=8 -o %t8
260 # RUN: wc -c < %t8 | FileCheck %s --check-prefix=SIZE
270 ## We don't want any implicit sections to be added after the .foo section,
271 ## so add them here explicitly.
274 ## Nothing should be emitted after the following section.
275 ## So we know that the expected file size is 0x100 + 0xFF == 0x1FF == 511.
278 ## Unaligned size. Used to make sure that we don't try to align the file offset
279 ## for writing the section header table.
282 - Type: SectionHeaderTable
285 ## Check we do not allow using "Offset" together with "NoHeaders".
286 # RUN: not yaml2obj %s --docnum=9 -DNOHEADERS=true -o /dev/null 2>&1 | FileCheck %s --check-prefix=NO-HEADERS-OFFSET
287 # RUN: not yaml2obj %s --docnum=9 -DNOHEADERS=false -o /dev/null 2>&1 | FileCheck %s --check-prefix=NO-HEADERS-OFFSET
289 # NO-HEADERS-OFFSET: error: NoHeaders can't be used together with Offset/Sections/Excluded
299 - Type: SectionHeaderTable
301 NoHeaders: [[NOHEADERS]]
303 ## Check we can place the section header table before other sections.
305 # RUN: yaml2obj %s --docnum=10 -o %t10
306 # RUN: llvm-readelf --file-headers --sections %t10 | FileCheck %s --check-prefix=PLACE-BEFORE
308 # PLACE-BEFORE: Start of section headers: 64 (bytes into file)
309 # PLACE-BEFORE: Size of section headers: 64 (bytes)
310 # PLACE-BEFORE: Number of section headers: 4
312 # PLACE-BEFORE: Section Headers:
313 # PLACE-BEFORE: [Nr] Name Type Address Off Size
314 ## 0x140 == Start of section headers (64) + Size of section headers (64) * Number of section headers (4);
315 # PLACE-BEFORE: [ 1] .foo PROGBITS 0000000000000000 000140 000000
323 - Type: SectionHeaderTable
324 Offset: [[OFFSET=<none>]]
332 ## Check we can use the Offset key to place the section header table at a different location.
334 # RUN: yaml2obj %s --docnum=10 -DOFFSET=0x1000 -o %t10.offset
335 # RUN: llvm-readelf --file-headers --sections %t10.offset | \
336 # RUN: FileCheck %s --check-prefix=PLACE-BEFORE-OFFSET
338 # PLACE-BEFORE-OFFSET: Start of section headers: 4096 (bytes into file)
339 # PLACE-BEFORE-OFFSET: Size of section headers: 64 (bytes)
340 # PLACE-BEFORE-OFFSET: Number of section headers: 4
342 # PLACE-BEFORE-OFFSET: Section Headers:
343 # PLACE-BEFORE-OFFSET: [Nr] Name Type Address Off Size
344 ## 0x1100 == Start of section headers (0x1000) + Size of section headers (64) * Number of section headers (4);
345 # PLACE-BEFORE-OFFSET: [ 1] .foo PROGBITS 0000000000000000 001100 000000
347 ## Check we can place the section header table somewhere in the middle of the sections list.
349 # RUN: yaml2obj %s --docnum=11 -o %t11
350 # RUN: llvm-readelf --sections %t11 | FileCheck %s --check-prefix=PLACE-AT-MIDDLE
352 # PLACE-AT-MIDDLE: There are 5 section headers, starting at offset 0x140:
353 # PLACE-AT-MIDDLE: [Nr] Name Type Address Off Size
354 # PLACE-AT-MIDDLE: [ 1] .foo PROGBITS 0000000000000000 000040 000100
355 ## The section header table is placed here, at 0x40 + 0x100 == 0x140.
356 ## The size of the table is 5 * 64 == 320 == 0x140.
357 ## 0x140 + 0x140 == offset of the .bar section.
358 # PLACE-AT-MIDDLE-NEXT: [ 2] .bar PROGBITS 0000000000000000 000280 000200
359 # PLACE-AT-MIDDLE-NEXT: [ 3] .strtab STRTAB 0000000000000000 000480 000001
360 # PLACE-AT-MIDDLE-NEXT: [ 4] .shstrtab STRTAB 0000000000000000 000481 00001d
371 - Type: SectionHeaderTable
381 ## Check we don`t allow having multiple SectionHeaderTable chunks.
383 # RUN: not yaml2obj %s --docnum=12 -o /dev/null 2>&1 | FileCheck %s --check-prefix=MULTIPLE
385 # MULTIPLE: error: multiple section header tables are not allowed
393 - Type: SectionHeaderTable
395 - Type: SectionHeaderTable
398 ## Check that we place implicit sections before the section header table
399 ## when it is placed at the end explicitly.
401 # RUN: yaml2obj %s --docnum=13 -o %t13
402 # RUN: llvm-readelf --sections %t13 | FileCheck %s --check-prefix=IMPLICIT
404 # IMPLICIT: There are 3 section headers, starting at offset 0x58:
405 # IMPLICIT: [Nr] Name Type Address Off Size
406 # IMPLICIT: [ 1] .strtab STRTAB 0000000000000000 000040 000001
407 # IMPLICIT-NEXT: [ 2] .shstrtab STRTAB 0000000000000000 000041 000013
408 ## The section header table is placed here, at 0x58.
409 ## alignTo(8, 0x41 + 0x13) == 0x58.
417 - Type: SectionHeaderTable
422 ## Show that we can reference both the first and last section in the section
423 ## header table, via sh_link.
425 # RUN: yaml2obj %s --docnum=14 -o %t14
426 # RUN: llvm-readelf --sections %t14 | FileCheck %s --check-prefix=LINK
436 - Type: SectionHeaderTable
451 # LINK: There are 5 section headers
452 # LINK: [Nr] Name Type Address Off Size ES Flg Lk
454 # LINK-NEXT: [ 2] .ref.first PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] [[#%x,]] 1
455 # LINK-NEXT: [ 3] .ref.last PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] [[#%x,]] 4
456 # LINK-NEXT: [ 4] .shstrtab