[6/9,v2] doc: Add elf32_newehdr.3 and elf64_newehdr.3

Message ID 20241003022610.129834-6-amerey@redhat.com
State Committed
Headers
Series [1/9,v2] doc: Add elf32_checksum.3 and elf64_checksum.3 |

Commit Message

Aaron Merey Oct. 3, 2024, 2:26 a.m. UTC
  Signed-off-by: Aaron Merey <amerey@redhat.com>
---

v2 changes:
Mention that the existing header will be returned if one is
already present.

Mention that an ELF header must be present before callling
elf_newscn or elf_newphdr

 doc/elf32_newehdr.3 | 60 +++++++++++++++++++++++++++++++++++++++++++++
 doc/elf64_newehdr.3 |  1 +
 2 files changed, 61 insertions(+)
 create mode 100644 doc/elf32_newehdr.3
 create mode 100644 doc/elf64_newehdr.3
  

Comments

Mark Wielaard Oct. 15, 2024, 3:37 p.m. UTC | #1
Hi Aaron,

On Wed, 2024-10-02 at 22:26 -0400, Aaron Merey wrote:
> v2 changes:
> Mention that the existing header will be returned if one is
> already present.
> 
> Mention that an ELF header must be present before callling
> elf_newscn or elf_newphdr

Looks good to me.

Thanks,

Mark
  

Patch

diff --git a/doc/elf32_newehdr.3 b/doc/elf32_newehdr.3
new file mode 100644
index 00000000..d5d34547
--- /dev/null
+++ b/doc/elf32_newehdr.3
@@ -0,0 +1,60 @@ 
+.TH ELF32_NEWEHDR 3 2024-08-14 "Libelf" "Libelf Programmer's Manual"
+
+.SH NAME
+elf32_newehdr, elf64_newehdr \- create a new ELF header for a 32-bit or
+64-bit ELF object file
+
+.SH SYNOPSIS
+.nf
+.B #include <libelf.h>
+
+.BI "Elf32_Ehdr *elf32_newehdr(Elf *" elf ");"
+.BI "Elf64_Ehdr *elf64_newehdr(Elf *" elf ");"
+
+.SH DESCRIPTION
+This function initializes a new ELF header and associates it with
+.IR elf .
+If
+.I elf
+already has an ELF header associated with it, no new header will be created
+and the existing header will be returned.  An ELF header must be present
+before calling
+.B elf_newscn
+or
+.BR elf_newphdr .
+
+.SH PARAMETERS
+.TP
+.I elf
+ELF descriptor for which a new ELF header is to be created.
+
+.SH RETURN VALUE
+On success, return a pointer to the newly created ELF header.  If
+.I elf
+already has an ELF header associated with it, this pre-existing header is
+returned and no new header is created. On failure, return NULL and set a
+libelf error code.
+
+.SH SEE ALSO
+.BR elf_errno (3),
+.BR libelf (3),
+.BR elf (5)
+
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.na
+.nh
+.BR elf32_newehdr (),
+.BR elf64_newehdr ()
+T}	Thread safety	MT-Safe
+.TE
+
+.SH REPORTING BUGS
+Report bugs to <elfutils-devel@sourceware.org> or https://sourceware.org/bugzilla/.
diff --git a/doc/elf64_newehdr.3 b/doc/elf64_newehdr.3
new file mode 100644
index 00000000..9119d838
--- /dev/null
+++ b/doc/elf64_newehdr.3
@@ -0,0 +1 @@ 
+.so man3/elf32_newehdr.3