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author | Nico Rieck <nico.rieck@gmail.com> | 2013-07-29 12:30:12 +0000 |
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committer | Nico Rieck <nico.rieck@gmail.com> | 2013-07-29 12:30:12 +0000 |
commit | c63dce3c59ac24b2656e06f7017cd4dce4bf733c (patch) | |
tree | 7ecf231b90f9c2cc0e3af1e3d7d485a652c4722e /test/MC | |
parent | c16babf6939f9db05a8a81c4d530a2fd605b4236 (diff) | |
download | llvm-c63dce3c59ac24b2656e06f7017cd4dce4bf733c.tar.gz llvm-c63dce3c59ac24b2656e06f7017cd4dce4bf733c.tar.bz2 llvm-c63dce3c59ac24b2656e06f7017cd4dce4bf733c.tar.xz |
MC: Support larger COFF string tables
Single-slash encoded entries do not require a terminating null. This bumps
the maximum table size from ~1MB to ~9.5MB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187352 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/MC')
-rw-r--r-- | test/MC/COFF/section-name-encoding.s | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/test/MC/COFF/section-name-encoding.s b/test/MC/COFF/section-name-encoding.s new file mode 100644 index 0000000000..0f531f3975 --- /dev/null +++ b/test/MC/COFF/section-name-encoding.s @@ -0,0 +1,62 @@ +// Check that COFF section names are properly encoded. +// +// Encodings for different lengths: +// [0, 8]: raw name +// (8, 999999]: base 10 string table index (/9999999) +// +// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -s | FileCheck %s + +// Raw encoding + +// CHECK: Section { +// CHECK: Number: 1 +// CHECK: Name: s (73 00 00 00 00 00 00 00) +// CHECK: } +// CHECK: Section { +// CHECK: Number: 2 +// CHECK: Name: s1234567 (73 31 32 33 34 35 36 37) +// CHECK: } +.section s; .long 1 +.section s1234567; .long 1 + + +// Base 10 encoding + +// /4 +// CHECK: Section { +// CHECK: Number: 3 +// CHECK: Name: s12345678 (2F 34 00 00 00 00 00 00) +// CHECK: } +.section s12345678; .long 1 + + +// Generate padding sections to increase the string table size to at least +// 1,000,000 bytes. +.macro pad_sections2 pad + // 10x \pad + .section p0\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad; .long 1 + .section p1\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad; .long 1 + .section p2\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad; .long 1 + .section p3\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad; .long 1 + .section p4\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad; .long 1 +.endm + +.macro pad_sections pad + // 20x \pad + pad_sections2 \pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad\pad +.endm + +// 1000x 'a' +pad_sections aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + + +// /1000029 == 4 + 10 + (5 * (2 + (20 * 10 * 1000) + 1)) +// v | | v ~~~~~~~~~~~~~~ v +// table size v v "p0" pad NUL seperator +// "s12345678\0" # of pad sections +// +// CHECK: Section { +// CHECK: Number: 9 +// CHECK: Name: seven_digit (2F 31 30 30 30 30 32 39) +// CHECK: } +.section seven_digit; .long 1 |