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| author | Josh Kunz <jkz@google.com> | 2020-01-23 17:37:14 -0800 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2021-08-27 17:26:04 -0700 |
| commit | cb908840466823a53c03da86e65118eb7467ab0b (patch) | |
| tree | b7088310f77bc70e859a8c2a9a8078efab865542 | |
| parent | 144448d56646f119c227f171473372855dd17e95 (diff) | |
| download | glibc-cb908840466823a53c03da86e65118eb7467ab0b.tar.gz | |
Additional fixes for llvm-as
Unlike GCC, llvm always uses an integrated assembler, which attempts to
recognized all `asm` statements written in the C code. glibc uses some
syntactically invalid asm statements to emit constants into assembly that
are later extracted with a sed or AWK script.
This change fixes two such invalid `asm` statements by wrapping the
output in a `.ascii` directive.. This does not break the sed/AWK (the same
special sequence is output) but it makes the statement syntactically valid.
See cf8e3f8757 for a previous fix for the same issue.
| -rw-r--r-- | sysdeps/gnu/errlist.awk | 2 | ||||
| -rw-r--r-- | sysdeps/gnu/errlist.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/gnu/errlist.awk b/sysdeps/gnu/errlist.awk index 9a5adf86a6..cc07510e10 100644 --- a/sysdeps/gnu/errlist.awk +++ b/sysdeps/gnu/errlist.awk @@ -105,6 +105,6 @@ END { print ""; print "#ifdef EMIT_ERR_MAX"; print "void dummy (void)" - print "{ asm volatile (\" @@@ %0 @@@ \" : : \"i\" (ERR_REMAP (ERR_MAX))); }" + print "{ asm volatile (\".ascii \\\" @@@ %0 @@@ \\\"\" : : \"i\" (ERR_REMAP (ERR_MAX))); }" print "#endif"; } diff --git a/sysdeps/gnu/errlist.c b/sysdeps/gnu/errlist.c index 4a1c093ed0..5345df0268 100644 --- a/sysdeps/gnu/errlist.c +++ b/sysdeps/gnu/errlist.c @@ -1478,5 +1478,5 @@ const int _sys_nerr_internal = NERR; #ifdef EMIT_ERR_MAX void dummy (void) -{ asm volatile (" @@@ %0 @@@ " : : "i" (ERR_REMAP (ERR_MAX))); } +{ asm volatile (".ascii \" @@@ %0 @@@ \"" : : "i" (ERR_REMAP (ERR_MAX))); } #endif |