diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/errno.h | 4 | ||||
| -rw-r--r-- | include/libc-symbols.h | 5 | ||||
| -rw-r--r-- | include/netdb.h | 4 | ||||
| -rw-r--r-- | include/stap-probe.h | 12 |
4 files changed, 9 insertions, 16 deletions
diff --git a/include/errno.h b/include/errno.h index dbf2a61e0d..8e60288f50 100644 --- a/include/errno.h +++ b/include/errno.h @@ -22,7 +22,7 @@ # define errno rtld_errno extern int rtld_errno attribute_hidden; -# elif !defined NOT_IN_libc || defined IN_LIB +# elif !defined NOT_IN_libc || IS_IN_LIB # include <tls.h> @@ -34,7 +34,7 @@ extern int rtld_errno attribute_hidden; # endif extern __thread int errno attribute_tls_model_ie; -# endif /* !NOT_IN_libc || IN_LIB */ +# endif /* !NOT_IN_libc || IS_IN_LIB */ # define __set_errno(val) (errno = (val)) diff --git a/include/libc-symbols.h b/include/libc-symbols.h index 5cbf47308d..52350d3b60 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -23,6 +23,11 @@ #define IN_MODULE PASTE_NAME (MODULE_, MODULE_NAME) #define IS_IN(lib) (IN_MODULE == MODULE_##lib) +/* Returns true if the current module is a versioned library. Versioned + library names culled from shlib-versions files are assigned a MODULE_* + value lower than MODULE_LIBS_BEGIN. */ +#define IS_IN_LIB (IN_MODULE > MODULE_LIBS_BEGIN) + #define PASTE_NAME(a,b) PASTE_NAME1 (a,b) #define PASTE_NAME1(a,b) a##b diff --git a/include/netdb.h b/include/netdb.h index a7960ebdf7..eccdbe6462 100644 --- a/include/netdb.h +++ b/include/netdb.h @@ -4,7 +4,7 @@ #ifndef _ISOMAC /* Macros for accessing h_errno from inside libc. */ -# if !defined NOT_IN_libc || defined IN_LIB +# if !defined NOT_IN_libc || IS_IN_LIB # undef h_errno # ifndef NOT_IN_libc # define h_errno __libc_h_errno @@ -12,7 +12,7 @@ # define h_errno h_errno /* For #ifndef h_errno tests. */ # endif extern __thread int h_errno attribute_tls_model_ie; -# endif /* !NOT_IN_libc || IN_LIB */ +# endif /* !NOT_IN_libc || IS_IN_LIB */ # define __set_h_errno(x) (h_errno = (x)) libc_hidden_proto (hstrerror) diff --git a/include/stap-probe.h b/include/stap-probe.h index 150fc1ec26..6532b376b3 100644 --- a/include/stap-probe.h +++ b/include/stap-probe.h @@ -40,18 +40,6 @@ architecture specific and can be found in the gdb and SystemTap source code. */ -# ifndef NOT_IN_libc -# define IN_LIB libc -# elif !defined IN_LIB -/* This is intentionally defined with extra unquoted commas in it so - that macro substitution will bomb out when it is used. We don't - just use #error here, so that this header can be included by - other headers that use LIBC_PROBE inside their own macros. We - only want such headers to fail to compile if those macros are - actually used in a context where IN_LIB has not been defined. */ -# define IN_LIB ,,,missing -DIN_LIB=... -- not extra-lib.mk?,,, -# endif - # define LIBC_PROBE(name, n, ...) \ LIBC_PROBE_1 (MODULE_NAME, name, n, ## __VA_ARGS__) |