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Diffstat (limited to 'glibc/debugging/ld_so_console.mdwn')
| -rw-r--r-- | glibc/debugging/ld_so_console.mdwn | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/glibc/debugging/ld_so_console.mdwn b/glibc/debugging/ld_so_console.mdwn deleted file mode 100644 index b3d1762f..00000000 --- a/glibc/debugging/ld_so_console.mdwn +++ /dev/null @@ -1,20 +0,0 @@ -[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled [[GNU Free Documentation -License|/fdl]]."]]"""]] - -If you need to debug something in the early `ld.so` startup, and can't refrain -from good old `printf` debugging, there is a caveat: the available API in -`ld.so` is rather limited. See the few functions is `dl-sysdep.c`. For -example, there's a private `__libc_write`, which you should be able to use for -writing to FD stderr -- but, at early `ld.so` startup, this isn't usable as -`_hurd_init_dtable` is still all zeros, etc. To get you started, here is a -simple [[dl-sysdep.c.patch]] to get access to the Mach console. - -Can this be integrated with the other debugging printf functions from -`elf/dl-misc.c` (`_dl_debug_vdprintf`) ([[!taglink open_issue_glibc]])? |