ld: microblaze: ignore rwx segments

[binutils-gdb.git] / ld / ld.texi

diff --git a/ld/ld.texi b/ld/ld.texi
index a007ae7fadea4a0c8be4d36217bf2a28df970500..2663f07e9aea2307f52c90445750acf10f33953d 100644 (file)
--- a/ld/ld.texi
+++ b/ld/ld.texi
@@ -1475,6 +1475,17 @@ Specify that the object's filters be processed immediately at runtime.
 @item max-page-size=@var{value}
 Set the maximum memory page size supported to @var{value}.
 
+@item mark-plt
+@itemx nomark-plt
+Mark PLT entries with dynamic tags, DT_X86_64_PLT, DT_X86_64_PLTSZ and
+DT_X86_64_PLTENT.  Since this option stores a non-zero value in the
+r_addend field of R_X86_64_JUMP_SLOT relocations, the resulting
+executables and shared libraries are incompatible with dynamic linkers,
+such as those in older versions of glibc without the change to ignore
+r_addend in R_X86_64_GLOB_DAT and R_X86_64_JUMP_SLOT relocations, which
+don't ignore the r_addend field of R_X86_64_JUMP_SLOT relocations.
+Supported for x86_64.
+
 @item muldefs
 Allow multiple definitions.
 
@@ -1544,6 +1555,11 @@ Don't create an ELF @code{PT_GNU_RELRO} segment if @samp{norelro}.
 Report dynamic relative relocations generated by linker.  Supported for
 Linux/i386 and Linux/x86_64.
 
+@item sectionheader
+@itemx nosectionheader
+Generate section header.  Don't generate section header if
+@samp{nosectionheader} is used.  @option{sectionheader} is the default.
+
 @item separate-code
 @itemx noseparate-code
 Create separate code @code{PT_LOAD} segment header in the object.  This
@@ -3566,6 +3582,11 @@ can be used to insert a zero value for the timestamp, this ensuring
 that binaries produced from identical sources will compare
 identically.
 
+If @option{--insert-timestamp} is active then the time inserted is
+either the time that the linking takes place or, if the
+@code{SOURCE_DATE_EPOCH} environment variable is defined, the number
+of seconds since Unix epoch as specified by that variable.
+
 @kindex --enable-reloc-section
 @item --enable-reloc-section
 @itemx --disable-reloc-section
@@ -6813,19 +6834,21 @@ the standard bindings and precedence levels:
 @ifnottex
 @c END TEXI2ROFF-KILL
 @smallexample
-precedence      associativity   Operators                Notes
+precedence      associativity   Operators                           Notes
 (highest)
-1               left            !  -  ~                  (1)
+1               left            !  -  ~                             (1)
 2               left            *  /  %
 3               left            +  -
 4               left            >>  <<
-5               left            ==  !=  >  <  <=  >=
-6               left            &
-7               left            |
-8               left            &&
-9               left            ||
-10              right           ? :
-11              right           &=  +=  -=  *=  /=       (2)
+5               left            >  <  <=  >=
+6               left            ==  !=
+7               left            &
+8               left            ^
+9               left            |
+10              left            &&
+11              left            ||
+12              right           ? :
+13              right           +=  -=  *=  /=  <<=  >>=  &=  |= ^= (2)
 (lowest)
 @end smallexample
 Notes:
@@ -6851,13 +6874,15 @@ height2pt&\omit&&\omit&&\omit&\cr
 &2&&left&&*          /        \%&\cr
 &3&&left&&+          -&\cr
 &4&&left&&>>         <<&\cr
-&5&&left&&==         !=       >      <      <=      >=&\cr
-&6&&left&&\&&\cr
-&7&&left&&|&\cr
-&8&&left&&{\&\&}&\cr
-&9&&left&&||&\cr
-&10&&right&&?        :&\cr
-&11&&right&&\qquad\&=      +=       -=     *=     /=\qquad\ddag&\cr
+&5&&left&& >      <      <=      >=&\cr
+&6&&left&&==         !=&\cr
+&7&&left&&\&&\cr
+&8&&left&&\^{}&\cr
+&9&&left&&|&\cr
+&10&&left&&{\&\&}&\cr
+&11&&left&&||&\cr
+&12&&right&&?        :&\cr
+&13&&right&&\qquad +=       -=     *=     /= <<= >>= \&= |= \^{}=\qquad\ddag&\cr
 &lowest&&&&&\cr
 height2pt&\omit&&\omit&&\omit&\cr}
 \hrule}
@@ -7105,10 +7130,13 @@ The builtin function @code{NEXT} is closely related to @code{ALIGN}.
 @kindex ALIGNOF(@var{section})
 @cindex section alignment
 Return the alignment in bytes of the named @var{section}, if that section has
-been allocated.  If the section has not been allocated when this is
-evaluated, the linker will report an error. In the following example,
-the alignment of the @code{.output} section is stored as the first
-value in that section.
+been allocated, or zero if the section has not been allocated.  If the
+section does not exist in the linker script the linker will report an
+error.  If @var{section} is @code{NEXT_SECTION} then @code{ALIGNOF} will
+return the alignment of the next allocated section specified in the
+linker script, or zero if there is no such section.  In the following
+example, the alignment of the @code{.output} section is stored as the
+first value in that section.
 @smallexample
 @group
 SECTIONS@{ @dots{}
@@ -7257,9 +7285,13 @@ name.
 @kindex SIZEOF(@var{section})
 @cindex section size
 Return the size in bytes of the named @var{section}, if that section has
-been allocated.  If the section has not been allocated when this is
-evaluated, the linker will report an error.  In the following example,
-@code{symbol_1} and @code{symbol_2} are assigned identical values:
+been allocated, or zero if the section has not been allocated.  If the
+section does not exist in the linker script the linker will report an
+error.  If @var{section} is @code{NEXT_SECTION} then @code{SIZEOF} will
+return the alignment of the next allocated section specified in the
+linker script, or zero if there is no such section.  In the following
+example, @code{symbol_1} and @code{symbol_2} are assigned identical
+values:
 @smallexample
 @group
 SECTIONS@{ @dots{}