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Diffstat (limited to 'gcc/config/rs6000/sysv4.h')
-rw-r--r--gcc/config/rs6000/sysv4.h78
1 files changed, 69 insertions, 9 deletions
diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
index 45928e4498b..a49a1ca6516 100644
--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
@@ -199,6 +199,8 @@ do { \
rs6000_current_abi = ABI_V4; \
else if (!strcmp (rs6000_abi_name, "netbsd")) \
rs6000_current_abi = ABI_V4; \
+ else if (!strcmp (rs6000_abi_name, "openbsd")) \
+ rs6000_current_abi = ABI_V4; \
else if (!strcmp (rs6000_abi_name, "i960-old")) \
{ \
rs6000_current_abi = ABI_V4; \
@@ -389,6 +391,21 @@ do { \
#undef STACK_BOUNDARY
#define STACK_BOUNDARY (TARGET_ALTIVEC_ABI ? 128 : 64)
+/* Define this macro if you wish to preserve a certain alignment for
+ the stack pointer, greater than what the hardware enforces. The
+ definition is a C expression for the desired alignment (measured
+ in bits). This macro must evaluate to a value equal to or larger
+ than STACK_BOUNDARY.
+ For the SYSV ABI and variants the alignment of the stack pointer
+ is usually controlled manually in rs6000.c. However, to maintain
+ alignment across alloca () in all circumstances,
+ PREFERRED_STACK_BOUNDARY needs to be set as well.
+ This has the additional advantage of allowing a bigger maximum
+ alignment of user objects on the stack. */
+
+#undef PREFERRED_STACK_BOUNDARY
+#define PREFERRED_STACK_BOUNDARY 128
+
/* Real stack boundary as mandated by the appropriate ABI. */
#define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
@@ -453,7 +470,7 @@ do { \
#define TOC_SECTION_FUNCTION \
void \
-toc_section () \
+toc_section (void) \
{ \
if (in_section != in_toc) \
{ \
@@ -495,14 +512,14 @@ toc_section () \
} \
\
extern int in_toc_section (void); \
-int in_toc_section () \
+int in_toc_section (void) \
{ \
return in_section == in_toc; \
}
#define SDATA_SECTION_FUNCTION \
void \
-sdata_section () \
+sdata_section (void) \
{ \
if (in_section != in_sdata) \
{ \
@@ -513,7 +530,7 @@ sdata_section () \
#define SDATA2_SECTION_FUNCTION \
void \
-sdata2_section () \
+sdata2_section (void) \
{ \
if (in_section != in_sdata2) \
{ \
@@ -524,7 +541,7 @@ sdata2_section () \
#define SBSS_SECTION_FUNCTION \
void \
-sbss_section () \
+sbss_section (void) \
{ \
if (in_section != in_sbss) \
{ \
@@ -535,7 +552,7 @@ sbss_section () \
#define INIT_SECTION_FUNCTION \
void \
-init_section () \
+init_section (void) \
{ \
if (in_section != in_init) \
{ \
@@ -546,7 +563,7 @@ init_section () \
#define FINI_SECTION_FUNCTION \
void \
-fini_section () \
+fini_section (void) \
{ \
if (in_section != in_fini) \
{ \
@@ -793,6 +810,7 @@ extern int fixuplabelno;
mcall-aixdesc | \
mcall-freebsd | \
mcall-netbsd | \
+ mcall-openbsd | \
mcall-linux | \
mcall-gnu :-mbig; \
mcall-i960-old :-mlittle}"
@@ -815,6 +833,7 @@ extern int fixuplabelno;
mcall-aixdesc | \
mcall-freebsd | \
mcall-netbsd | \
+ mcall-openbsd | \
mcall-linux | \
mcall-gnu : -mbig %(cc1_endian_big); \
mcall-i960-old : -mlittle %(cc1_endian_little); \
@@ -827,7 +846,8 @@ extern int fixuplabelno;
%{mcall-i960-old: -meabi } \
%{mcall-linux: -mno-eabi } \
%{mcall-gnu: -mno-eabi } \
- %{mcall-netbsd: -mno-eabi }}} \
+ %{mcall-netbsd: -mno-eabi } \
+ %{mcall-openbsd: -mno-eabi }}} \
%{msdata: -msdata=default} \
%{mno-sdata: -msdata=none} \
%{profile: -p}"
@@ -860,6 +880,7 @@ extern int fixuplabelno;
mcall-linux : %(link_start_linux) ; \
mcall-gnu : %(link_start_gnu) ; \
mcall-netbsd : %(link_start_netbsd) ; \
+ mcall-openbsd: %(link_start_openbsd) ; \
: %(link_start_default) }"
#define LINK_START_DEFAULT_SPEC ""
@@ -917,6 +938,7 @@ extern int fixuplabelno;
mcall-linux : %(link_os_linux) ; \
mcall-gnu : %(link_os_gnu) ; \
mcall-netbsd : %(link_os_netbsd) ; \
+ mcall-openbsd: %(link_os_openbsd) ; \
: %(link_os_default) }"
#define LINK_OS_DEFAULT_SPEC ""
@@ -933,6 +955,7 @@ extern int fixuplabelno;
mcall-linux : %(cpp_os_linux) ; \
mcall-gnu : %(cpp_os_gnu) ; \
mcall-netbsd : %(cpp_os_netbsd) ; \
+ mcall-openbsd: %(cpp_os_openbsd) ; \
: %(cpp_os_default) }"
#define CPP_OS_DEFAULT_SPEC ""
@@ -949,6 +972,7 @@ extern int fixuplabelno;
mcall-linux : %(startfile_linux) ; \
mcall-gnu : %(startfile_gnu) ; \
mcall-netbsd : %(startfile_netbsd) ; \
+ mcall-openbsd: %(startfile_openbsd) ; \
: %(startfile_default) }"
#define STARTFILE_DEFAULT_SPEC ""
@@ -965,6 +989,7 @@ extern int fixuplabelno;
mcall-linux : %(lib_linux) ; \
mcall-gnu : %(lib_gnu) ; \
mcall-netbsd : %(lib_netbsd) ; \
+ mcall-openbsd: %(lib_openbsd) ; \
: %(lib_default) }"
#define LIB_DEFAULT_SPEC ""
@@ -981,6 +1006,7 @@ extern int fixuplabelno;
mcall-linux : crtsavres.o%s %(endfile_linux) ; \
mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
+ mcall-openbsd: crtsavres.o%s %(endfile_openbsd) ; \
: %(crtsavres_default) %(endfile_default) }"
#define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
@@ -1098,7 +1124,7 @@ extern int fixuplabelno;
%{!ansi: \
%{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
%{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
--Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
+-Asystem=linux -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
/* GNU/Hurd support. */
#define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
@@ -1148,6 +1174,34 @@ ncrtn.o%s"
#define CPP_OS_NETBSD_SPEC "\
-D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
+/* OpenBSD support. */
+#ifndef LIB_OPENBSD_SPEC
+#define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}"
+#endif
+
+#ifndef STARTFILE_OPENBSD_SPEC
+#define STARTFILE_OPENBSD_SPEC "\
+%{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
+%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+#endif
+
+#ifndef ENDFILE_OPENBSD_SPEC
+#define ENDFILE_OPENBSD_SPEC "\
+%{!shared:crtend.o%s} %{shared:crtendS.o%s}"
+#endif
+
+#ifndef LINK_START_OPENBSD_SPEC
+#define LINK_START_OPENBSD_SPEC "-Ttext 0x400074"
+#endif
+
+#ifndef LINK_OS_OPENBSD_SPEC
+#define LINK_OS_OPENBSD_SPEC ""
+#endif
+
+#ifndef CPP_OS_OPENBSD_SPEC
+#define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
+#endif
+
/* WindISS support. */
#define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
@@ -1180,6 +1234,7 @@ ncrtn.o%s"
{ "lib_gnu", LIB_GNU_SPEC }, \
{ "lib_linux", LIB_LINUX_SPEC }, \
{ "lib_netbsd", LIB_NETBSD_SPEC }, \
+ { "lib_openbsd", LIB_OPENBSD_SPEC }, \
{ "lib_windiss", LIB_WINDISS_SPEC }, \
{ "lib_default", LIB_DEFAULT_SPEC }, \
{ "startfile_ads", STARTFILE_ADS_SPEC }, \
@@ -1190,6 +1245,7 @@ ncrtn.o%s"
{ "startfile_gnu", STARTFILE_GNU_SPEC }, \
{ "startfile_linux", STARTFILE_LINUX_SPEC }, \
{ "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
+ { "startfile_openbsd", STARTFILE_OPENBSD_SPEC }, \
{ "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
{ "startfile_default", STARTFILE_DEFAULT_SPEC }, \
{ "endfile_ads", ENDFILE_ADS_SPEC }, \
@@ -1200,6 +1256,7 @@ ncrtn.o%s"
{ "endfile_gnu", ENDFILE_GNU_SPEC }, \
{ "endfile_linux", ENDFILE_LINUX_SPEC }, \
{ "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
+ { "endfile_openbsd", ENDFILE_OPENBSD_SPEC }, \
{ "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
{ "endfile_default", ENDFILE_DEFAULT_SPEC }, \
{ "link_path", LINK_PATH_SPEC }, \
@@ -1214,6 +1271,7 @@ ncrtn.o%s"
{ "link_start_gnu", LINK_START_GNU_SPEC }, \
{ "link_start_linux", LINK_START_LINUX_SPEC }, \
{ "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
+ { "link_start_openbsd", LINK_START_OPENBSD_SPEC }, \
{ "link_start_windiss", LINK_START_WINDISS_SPEC }, \
{ "link_start_default", LINK_START_DEFAULT_SPEC }, \
{ "link_os", LINK_OS_SPEC }, \
@@ -1225,6 +1283,7 @@ ncrtn.o%s"
{ "link_os_linux", LINK_OS_LINUX_SPEC }, \
{ "link_os_gnu", LINK_OS_GNU_SPEC }, \
{ "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
+ { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
{ "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
{ "link_os_default", LINK_OS_DEFAULT_SPEC }, \
{ "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
@@ -1238,6 +1297,7 @@ ncrtn.o%s"
{ "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
{ "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
{ "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
+ { "cpp_os_openbsd", CPP_OS_OPENBSD_SPEC }, \
{ "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
{ "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \
SUBSUBTARGET_EXTRA_SPECS
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-12 05:28:48 +0000