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authorMark Wielaard <mjw@redhat.com>2015-05-01 16:21:55 +0200
committerMark Wielaard <mjw@redhat.com>2015-05-01 22:48:19 +0200
commitb4336ba4f583e853fff4620243ae027cbab2b541 (patch)
tree2b3ac795238a751e921cbfe13a9a95deabfa714e /elf
parente1483b365da03e4bab3882e30872ed331f48cd21 (diff)
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elf.h: Add section compression constants and structures.
Add SHF_COMPRESSED section flag, Elf32_Chdr and Elf64_Chdr structs and ELFCOMPRESS constants to elf/elf.h.
Diffstat (limited to 'elf')
-rw-r--r--elf/elf.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/elf/elf.h b/elf/elf.h
index 39bafc2..12feb91 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -367,6 +367,7 @@ typedef struct
required */
#define SHF_GROUP (1 << 9) /* Section is member of a group. */
#define SHF_TLS (1 << 10) /* Section hold thread-local data. */
+#define SHF_COMPRESSED (1 << 11) /* Section with compressed data. */
#define SHF_MASKOS 0x0ff00000 /* OS-specific. */
#define SHF_MASKPROC 0xf0000000 /* Processor-specific */
#define SHF_ORDERED (1 << 30) /* Special ordering requirement
@@ -374,6 +375,30 @@ typedef struct
#define SHF_EXCLUDE (1U << 31) /* Section is excluded unless
referenced or allocated (Solaris).*/
+/* Section compression header. Used when SHF_COMPRESSED is set. */
+
+typedef struct
+{
+ Elf32_Word ch_type; /* Compression format. */
+ Elf32_Word ch_size; /* Uncompressed data size. */
+ Elf32_Word ch_addralign; /* Uncompressed data alignment. */
+} Elf32_Chdr;
+
+typedef struct
+{
+ Elf64_Word ch_type; /* Compression format. */
+ Elf64_Word ch_reserved;
+ Elf64_Xword ch_size; /* Uncompressed data size. */
+ Elf64_Xword ch_addralign; /* Uncompressed data alignment. */
+} Elf64_Chdr;
+
+/* Legal values for ch_type (compression algorithm). */
+#define ELFCOMPRESS_ZLIB 1 /* ZLIB/DEFLATE algorithm. */
+#define ELFCOMPRESS_LOOS 0x60000000 /* Start of OS-specific. */
+#define ELFCOMPRESS_HIOS 0x6fffffff /* End of OS-specific. */
+#define ELFCOMPRESS_LOPROC 0x70000000 /* Start of processor-specific. */
+#define ELFCOMPRESS_HIPROC 0x7fffffff /* End of processor-specific. */
+
/* Section group handling. */
#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */