diff options
| author | Chris Johns <chrisj@rtems.org> | 2017-03-30 11:06:24 +1100 |
|---|---|---|
| committer | Chris Johns <chrisj@rtems.org> | 2017-03-31 09:00:14 +1100 |
| commit | bba48d90bcd343f62b368a510b67bbdb51fb6f0c (patch) | |
| tree | 0f7b4fb43aa7a432228d420f7987d7dcf4c6d90c /cpukit/libdl/include | |
| parent | benchmarks/whetstone: Port to RTEMS (diff) | |
| download | rtems-bba48d90bcd343f62b368a510b67bbdb51fb6f0c.tar.bz2 | |
libdl: Support link ordered loading of ELF sections.
The ARM C++ exception ABI uses an address ordered index table to
locate the correct frame data and this requires the EXIDX sections are
loaded in the order the order the matching text is loaded.
The EXIDX sections set the SHF_LINK_ORDER flag and link field. This patch
adds support to load those flagged sections in the linked-to section
order.
Updates #2955.
Closes #2959
Diffstat (limited to 'cpukit/libdl/include')
| -rw-r--r-- | cpukit/libdl/include/sys/exec_elf.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/cpukit/libdl/include/sys/exec_elf.h b/cpukit/libdl/include/sys/exec_elf.h index 08da7e809e..4242415f54 100644 --- a/cpukit/libdl/include/sys/exec_elf.h +++ b/cpukit/libdl/include/sys/exec_elf.h @@ -459,6 +459,10 @@ typedef struct { #define SHF_WRITE 0x1 /* Section contains writable data */ #define SHF_ALLOC 0x2 /* Section occupies memory */ #define SHF_EXECINSTR 0x4 /* Section contains executable insns */ +#define SHF_MERGE 0x10 /* Section contains data that can be merged */ +#define SHF_STRINGS 0x20 /* Section contains null-terminated strings */ +#define SHF_INFO_LINK 0x40 /* Section header's sh_info holds table index */ +#define SHF_LINK_ORDER 0x80 /* Section has special ordering requirements */ #define SHF_MASKOS 0x0f000000 /* Operating system specific values */ #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */ @@ -949,13 +953,13 @@ typedef struct { #define SYMINFO_NUM 2 /* - * These constants are used for Elf32_Verdef struct's version number. + * These constants are used for Elf32_Verdef struct's version number. */ #define VER_DEF_NONE 0 #define VER_DEF_CURRENT 1 /* - * These constants are used for Elf32_Verdef struct's vd_flags. + * These constants are used for Elf32_Verdef struct's vd_flags. */ #define VER_FLG_BASE 0x1 #define VER_FLG_WEAK 0x2 @@ -967,7 +971,7 @@ typedef struct { #define VER_NDX_GLOBAL 1 /* - * These constants are used for Elf32_Verneed struct's version number. + * These constants are used for Elf32_Verneed struct's version number. */ #define VER_NEED_NONE 0 #define VER_NEED_CURRENT 1 |