1 files changed, 42 insertions, 17 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index b5509ff..7423224 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -302,7 +302,7 @@ released on 2017-05-06.
 The gcobol documentation is maintained as manpages using troff
 mdoc. GNU groff is required to convert them to PDF format.  Conversion
 to HTML is done with mandoc, available at
-@uref{http://mdocml.bsd.lv/}.
+@uref{https://mandoc.bsd.lv}.
 
 Because ISO COBOL defines strict requirements for numerical precision,
 gcobol requires hardware with 128-bit computation instructions.  This
@@ -350,6 +350,12 @@ documentation including the target @code{SYSTEM} definition module.
 If Python3 is unavailable Modula-2 documentation will include a target
 independent version of the SYSTEM modules.
 
+@item @anchor{gccrs-prerequisite}gccrs
+
+The official Rust compiler and Rust build system (cargo) are required for
+building various parts of the gccrs frontend, until gccrs can compile them
+by itself. The minimum supported Rust version is 1.49.
+
 @item A ``working'' POSIX compatible shell, or GNU bash
 
 Necessary when running @command{configure} because some
@@ -387,7 +393,7 @@ Note binutils 2.35 or newer is required for LTO to work correctly
 with GNU libtool that includes doing a bootstrap with LTO enabled.
 
 @item gzip version 1.2.4 (or later) or
-@itemx bzip2 version 1.0.2 (or later)
+@itemx xz version 5.0 (or later)
 
 Necessary to uncompress GCC @command{tar} files when source code is
 obtained via HTTPS mirror sites.
@@ -625,6 +631,9 @@ building the documentation without error, but you may still want to
 install a newer release to get the best appearance and usability of
 the generated manuals.
 
+Also note that Texinfo older than version 7.1 may throw incorrect build
+warnings, though the generated documentation is correct.
+
 @item @TeX{} (any working version)
 
 Necessary for running @command{texi2dvi} and @command{texi2pdf}, which
@@ -1336,9 +1345,13 @@ default set of libraries is selected based on the value of
 
 @item amdgcn*-*-*
 @var{list} is a comma separated list of ISA names (allowed values:
-@code{gfx900}, @code{gfx906}, @code{gfx908}, @code{gfx90a}, @code{gfx90c}, 
-@code{gfx1030}, @code{gfx1036}, @code{gfx1100}, @code{gfx1103}).
-It ought not include the name of the default
+@code{gfx900}, @code{gfx902}, @code{gfx904}, @code{gfx906}, @code{gfx908},
+@code{gfx909}, @code{gfx90a}, @code{gfx90c}, @code{gfx942}, @code{gfx950},
+@code{gfx9-generic}, @code{gfx9-4-generic}, @code{gfx1030}, @code{gfx1031},
+@code{gfx1032}, @code{gfx1033}, @code{gfx1034}, @code{gfx1035}, @code{gfx1036},
+@code{gfx10-3-generic}, @code{gfx1100}, @code{gfx1101}, @code{gfx1102},
+@code{gfx1103}, @code{gfx1150}, @code{gfx1151}, @code{gfx1152}, @code{gfx1153},
+@code{gfx11-generic}).  It ought not include the name of the default
 ISA, specified via @option{--with-arch}.  If @var{list} is empty, then there
 will be no multilibs and only the default run-time library will be built.  If
 @var{list} is @code{default} or @option{--with-multilib-list=} is not
@@ -1874,8 +1887,8 @@ Produce code conforming to version 20191213.
 In the absence of this configuration option the default version is 20191213.
 
 @item --enable-__cxa_atexit
-Define if you want to use @code{__cxa_atexit}, rather than atexit, to
-register C++ destructors for local statics and global objects.
+Define if you want to use @code{__cxa_atexit}, rather than @code{atexit},
+to register C++ destructors for local statics and global objects.
 This is essential for fully standards-compliant handling of
 destructors, but requires @code{__cxa_atexit} in libc.  This option is
 currently only available on systems with GNU libc.  When enabled, this
@@ -2654,6 +2667,17 @@ target binutils supports @code{Intel CET} instructions and disabled
 otherwise.  In this case, the target libraries are configured to get
 additional @option{-fcf-protection} option.
 
+@item --enable-x86-64-mfentry
+@itemx --disable-x86-64-mfentry
+Enable @option {-mfentry} by default on x86-64 to put the profiling
+counter call, @code{__fentry__}, before the prologue so that @option{-pg}
+can be used with @option{-fshrink-wrap} which is enabled at @option{-O1}.
+This configure option is 64-bit only because @code{__fentry__} doesn't
+support PIC in 32-bit mode.
+
+@option{--enable-x86-64-mfentry=auto} is default.  @option{-mfentry} is
+enabled on Linux/x86-64 by default.
+
 @item --with-riscv-attribute=@samp{yes}, @samp{no} or @samp{default}
 Generate RISC-V attribute by default, in order to record extra build
 information in object.
@@ -3138,6 +3162,13 @@ Removes any @option{-O}-started option from @code{BOOT_CFLAGS}, and adds
 @itemx @samp{bootstrap-Og}
 Analogous to @code{bootstrap-O1}.
 
+@item @samp{bootstrap-native}
+@itemx @samp{bootstrap-native}
+Optimize the compiler code for the build host, if supported by the
+architecture. Note this only affects the compiler, not the targeted
+code. If you want the later, choose options suitable to the target you
+are looking for. For example @samp{--with-cpu} would be a good starting point.
+
 @item @samp{bootstrap-lto}
 Enables Link-Time Optimization for host tools during bootstrapping.
 @samp{BUILD_CONFIG=bootstrap-lto} is equivalent to adding
@@ -4047,9 +4078,10 @@ By default, multilib support is built for @code{gfx900}, @code{gfx906},
 requires LLVM 15 or newer.  LLVM 13.0.1 or LLVM 14 can be used by specifying
 a @code{--with-multilib-list=} that does not list any GFX 11 device nor
 @code{gfx1036}.  At least LLVM 16 is required for @code{gfx1150} and
-@code{gfx1151}, LLVM 19 for the generic @code{gfx9-generic},
-@code{gfx10-3-generic}, and @code{gfx11-generic} targets and for
-@code{gfx1152}, while LLVM 20 is required for @code{gfx1153}.
+@code{gfx1151}, LLVM 18 for @code{gfx942}, LLVM 19 for the generic
+@code{gfx9-generic}, @code{gfx9-4-generic}, @code{gfx10-3-generic}, and
+@code{gfx11-generic} targets and for @code{gfx1152}, while LLVM 20 is required
+for @code{gfx950} and @code{gfx1153}.
 
 The supported ISA architectures are listed in the GCC manual. The generic
 ISA targets @code{gfx9-generic}, @code{gfx10-3-generic}, and
@@ -5132,13 +5164,6 @@ respects, this target is the same as the
 @anchor{windows}
 @heading Microsoft Windows
 
-@subheading Intel 16-bit versions
-The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not
-supported.
-
-However, the 32-bit port has limited support for Microsoft
-Windows 3.11 in the Win32s environment, as a target only.  See below.
-
 @subheading Intel 32-bit versions
 The 32-bit versions of Windows, including Windows 95, Windows NT, Windows
 XP, and Windows Vista, are supported by several different target