diff options
| author | Takashi Iwai <tiwai@suse.de> | 2006-09-19 18:07:51 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2006-09-19 18:07:51 +0200 |
| commit | f0fbd4c03efb7b9d4e5273428c7f6aa1102d2d83 (patch) | |
| tree | fad3190f67574dc0e40b5e36f019f16a685f877a /include/local.h | |
| parent | 0211bc3b6875af9c076517070f0466d257adce51 (diff) | |
| download | alsa-lib-f0fbd4c03efb7b9d4e5273428c7f6aa1102d2d83.tar.gz | |
add support for hosts that have custom symbol prefixes
From: Mike Frysinger <vapier@gentoo.org>
some architectures, like Blackfin, have a prefix added to all symbols (in our
case it's historical baggage)
while normally packages shouldnt care, when code starts mixing assembler with
C (like symbol versioning), you need to dip down into the inner details.
find attached a patch which queries gcc for the prefix (all gcc toolchains
have a builtin define of __USER_LABEL_PREFIX__) and then automatically has
asm() constructs utilize this
since most targets define __USER_LABEL_PREFIX__ to nothing, hopefully this
shouldnt cause any problems :)
Diffstat (limited to 'include/local.h')
| -rw-r--r-- | include/local.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/local.h b/include/local.h index 01b79ca2..48820376 100644 --- a/include/local.h +++ b/include/local.h @@ -192,6 +192,9 @@ extern snd_lib_error_handler_t snd_err_msg; /* When a reference to SYMBOL is encountered, the linker will emit a warning message MSG. */ + +#define ASM_NAME(name) __SYMBOL_PREFIX name + #ifdef HAVE_GNU_LD # ifdef HAVE_ELF @@ -210,19 +213,19 @@ extern snd_lib_error_handler_t snd_err_msg; section attributes on what looks like a comment to the assembler. */ # ifdef HAVE_SECTION_QUOTES # define link_warning(symbol, msg) \ - __make_section_unallocated (".gnu.warning." #symbol) \ + __make_section_unallocated (".gnu.warning." ASM_NAME(#symbol)) \ static const char __evoke_link_warning_##symbol[] \ - __attribute__ ((section (".gnu.warning." #symbol "\"\n\t#\""))) = msg; + __attribute__ ((section (".gnu.warning." ASM_NAME(#symbol) "\"\n\t#\""))) = msg; # else # define link_warning(symbol, msg) \ - __make_section_unallocated (".gnu.warning." #symbol) \ + __make_section_unallocated (".gnu.warning." ASM_NAME(#symbol)) \ static const char __evoke_link_warning_##symbol[] \ - __attribute__ ((section (".gnu.warning." #symbol "\n\t#"))) = msg; + __attribute__ ((section (".gnu.warning." ASM_NAME(#symbol) "\n\t#"))) = msg; # endif # else # define link_warning(symbol, msg) \ asm (".stabs \"" msg "\",30,0,0,0\n\t" \ - ".stabs \"" __SYMBOL_PREFIX #symbol "\",1,0,0,0\n"); + ".stabs \"" ASM_NAME(#symbol) "\",1,0,0,0\n"); # endif #else /* We will never be heard; they will all die horribly. */ |