test/tools/llvm-readobj/ELF/stackmap.test

## Here we test how the --stackmap option can be used to dump .llvm_stackmaps sections.

## Check we are able to dump an empty .llvm_stackmaps section. Document that
## we are only trying to dump the first stack map section and ignore others if any.

# RUN: yaml2obj %s -o %t
# RUN: llvm-readobj %t --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=EMPTY --implicit-check-not=warning:
# RUN: llvm-readelf %t --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=EMPTY --implicit-check-not=warning:

# EMPTY:      LLVM StackMap Version: 3
# EMPTY-NEXT: Num Functions: 0
# EMPTY-NEXT: Num Constants: 0
# EMPTY-NEXT: Num Records: 0
# EMPTY-NOT:  {{.}}

--- !ELF
FileHeader:
  Class: ELFCLASS64
  Data:  ELFDATA2LSB
  Type:  ET_REL
Sections:
  - Name:         [[NAME=.llvm_stackmaps]]
    Type:         SHT_PROGBITS
    ContentArray: [ [[VERSION=0x3]] ]
    Size:         [[SIZE=16]]
    ShSize:       [[SHSIZE=<none>]]
    ShOffset:     [[SHOFFSET=<none>]]
## An arbitrary second broken .llvm_stackmaps section.
  - Name:         .llvm_stackmaps (1)
    Type:         SHT_PROGBITS
    ContentArray: [ 0xFF ]
    Size:         0x1

## Hide the first stack map section to allow dumpers to locate and validate the second one, which is broken.
## Check we are able to find it and report a warning properly.

# RUN: yaml2obj %s -DNAME=.foo -o %t.second
# RUN: llvm-readobj %t.second --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=SECOND -DFILE=%t.second --implicit-check-not=warning:
# RUN: llvm-readelf %t.second --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=SECOND -DFILE=%t.second --implicit-check-not=warning:

# SECOND: warning: '[[FILE]]': unable to read the stack map from SHT_PROGBITS section with index 2: the stack map section size (1) is less than the minimum possible size of its header (16)

## Check we report a warning when the size of the .llvm_stackmaps section is less
## than the minimum possible size of its header.

# RUN: yaml2obj %s -DSHSIZE=0 -o %t.trunc0
# RUN: llvm-readobj %t.trunc0 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc0 --check-prefix=TRUNC -DVAL=0
# RUN: llvm-readelf %t.trunc0 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc0 --check-prefix=TRUNC -DVAL=0

# RUN: yaml2obj %s -DSIZE=1 -o %t.trunc1
# RUN: llvm-readobj %t.trunc1 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc1 --check-prefix=TRUNC -DVAL=1
# RUN: llvm-readelf %t.trunc1 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc1 --check-prefix=TRUNC -DVAL=1

# RUN: yaml2obj %s -DSIZE=15 -o %t.trunc15
# RUN: llvm-readobj %t.trunc15 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc15 --check-prefix=TRUNC -DVAL=15
# RUN: llvm-readelf %t.trunc15 --stackmap 2>&1 | FileCheck %s -DFILE=%t.trunc15 --check-prefix=TRUNC -DVAL=15

# TRUNC: warning: '[[FILE]]': unable to read the stack map from SHT_PROGBITS section with index 1: the stack map section size ([[VAL]]) is less than the minimum possible size of its header (16)

## Check that we report a warning when the version of the stack map section is not supported.

# RUN: yaml2obj %s -DVERSION=2 -o %t.ver2
# RUN: llvm-readobj %t.ver2 --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=VERSION -DFILE=%t.ver2 --implicit-check-not=warning: -DVERSION=2
# RUN: llvm-readelf %t.ver2 --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=VERSION -DFILE=%t.ver2 --implicit-check-not=warning: -DVERSION=2

# RUN: yaml2obj %s -DVERSION=4 -o %t.ver4
# RUN: llvm-readobj %t.ver4 --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=VERSION -DFILE=%t.ver4 --implicit-check-not=warning: -DVERSION=4
# RUN: llvm-readelf %t.ver4 --stackmap 2>&1 | \
# RUN:   FileCheck %s --check-prefix=VERSION -DFILE=%t.ver4 --implicit-check-not=warning: -DVERSION=4

# VERSION: warning: '[[FILE]]': unable to read the stack map from SHT_PROGBITS section with index 1: the version ([[VERSION]]) of the stack map section is unsupported, the supported version is 3

## Check that we report a warning when we are unable to read the content of the stack map section.
# RUN: yaml2obj %s -DSHOFFSET=0xffff -o %t.offset
# RUN: llvm-readobj %t.offset --stackmap 2>&1 | FileCheck %s -DFILE=%t.offset --check-prefix=OFFSET
# RUN: llvm-readelf %t.offset --stackmap 2>&1 | FileCheck %s -DFILE=%t.offset --check-prefix=OFFSET

# OFFSET: warning: '[[FILE]]': unable to read the stack map from SHT_PROGBITS section with index 1: section [index 1] has a sh_offset (0xffff) + sh_size (0x10) that is greater than the file size (0x1b8)