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Test Your Knowledge in Computers #1011
Difficulty: Easy
The number 128 in base 10 equals 10000000 in base 2.
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elf64_newphdr(3elf) [opensolaris man page]

elf32_getphdr(3ELF)					       ELF Library Functions					       elf32_getphdr(3ELF)

elf32_getphdr, elf32_newphdr, elf64_getphdr, elf64_newphdr - retrieve class-dependent program header table SYNOPSIS
cc [ flag ... ] file... -lelf [ library ... ] #include <libelf.h> Elf32_Phdr *elf32_getphdr(Elf *elf); Elf32_Phdr *elf32_newphdr(Elf *elf, size_t count); Elf64_Phdr *elf64_getphdr(Elf *elf); Elf64_Phdr *elf64_newphdr(Elf *elf, size_t count); DESCRIPTION
For a 32-bit class file, elf32_getphdr() returns a pointer to the program execution header table, if one is available for the ELF descrip- tor elf. elf32_newphdr() allocates a new table with count entries, regardless of whether one existed previously, and sets the ELF_F_DIRTY bit for the table. See elf_flagdata(3ELF). Specifying a zero count deletes an existing table. Note this behavior differs from that of elf32_newe- hdr() allowing a program to replace or delete the program header table, changing its size if necessary. See elf32_getehdr(3ELF). If no program header table exists, the file is not a 32-bit class file, an error occurs, or elf is NULL, both functions return a null pointer. Additionally, elf32_newphdr() returns a null pointer if count is 0. The table is an array of Elf32_Phdr structures, each of which includes the following members: Elf32_Word p_type; Elf32_Off p_offset; Elf32_Addr p_vaddr; Elf32_Addr p_paddr; Elf32_Word p_filesz; Elf32_Word p_memsz; Elf32_Word p_flags; Elf32_Word p_align; The Elf64_Phdr structures include the following members: Elf64_Word p_type; Elf64_Word p_flags; Elf64_Off p_offset; Elf64_Addr p_vaddr; Elf64_Addr p_paddr; Elf64_Xword p_filesz; Elf64_Xword p_memsz; Elf64_Xword p_align; For the 64-bit class, replace 32 with 64 as appropriate. The ELF header's e_phnum member tells how many entries the program header table has. See elf32_getehdr(3ELF). A program may inspect this value to determine the size of an existing table; elf32_newphdr() automatically sets the member's value to count. If the program is build- ing a new file, it is responsible for creating the file's ELF header before creating the program header table. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
elf(3ELF), elf32_getehdr(3ELF), elf_begin(3ELF), elf_flagdata(3ELF), libelf(3LIB), attributes(5) SunOS 5.11 11 Jul 2001 elf32_getphdr(3ELF)

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