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Diffstat (limited to 'src/cmd/dist/goc2c.c')
-rw-r--r--src/cmd/dist/goc2c.c116
1 files changed, 88 insertions, 28 deletions
diff --git a/src/cmd/dist/goc2c.c b/src/cmd/dist/goc2c.c
index f0fa04335..38627657e 100644
--- a/src/cmd/dist/goc2c.c
+++ b/src/cmd/dist/goc2c.c
@@ -85,11 +85,15 @@ enum {
String,
Slice,
Eface,
+ Complex128,
+ Float32,
+ Float64,
};
static struct {
char *name;
int size;
+ int rnd; // alignment
} type_table[] = {
/*
* variable sized first, for easy replacement.
@@ -105,6 +109,7 @@ static struct {
{"String", 8},
{"Slice", 12},
{"Eface", 8},
+ {"Complex128", 16},
/* fixed size */
{"float32", 4},
@@ -130,7 +135,7 @@ int structround = 4;
static void
bad_eof(void)
{
- fatal("%s:%ud: unexpected EOF\n", file, lineno);
+ fatal("%s:%d: unexpected EOF\n", file, lineno);
}
/* Free a list of parameters. */
@@ -295,9 +300,9 @@ read_package(void)
token = read_token_no_eof();
if (token == nil)
- fatal("%s:%ud: no token\n", file, lineno);
+ fatal("%s:%d: no token\n", file, lineno);
if (!streq(token, "package")) {
- fatal("%s:%ud: expected \"package\", got \"%s\"\n",
+ fatal("%s:%d: expected \"package\", got \"%s\"\n",
file, lineno, token);
}
return read_token_no_eof();
@@ -307,6 +312,9 @@ read_package(void)
static void
read_preprocessor_lines(void)
{
+ int first;
+
+ first = 1;
while (1) {
int c;
@@ -317,6 +325,10 @@ read_preprocessor_lines(void)
xungetc();
break;
}
+ if(first) {
+ first = 0;
+ xputchar('\n');
+ }
xputchar(c);
do {
c = getchar_update_lineno();
@@ -365,17 +377,24 @@ read_type(void)
/* Return the size of the given type. */
static int
-type_size(char *p)
+type_size(char *p, int *rnd)
{
int i;
- if(p[xstrlen(p)-1] == '*')
+ if(p[xstrlen(p)-1] == '*') {
+ *rnd = type_table[Uintptr].rnd;
return type_table[Uintptr].size;
+ }
+
+ if(streq(p, "Iface"))
+ p = "Eface";
for(i=0; type_table[i].name; i++)
- if(streq(type_table[i].name, p))
+ if(streq(type_table[i].name, p)) {
+ *rnd = type_table[i].rnd;
return type_table[i].size;
- fatal("%s:%ud: unknown type %s\n", file, lineno, p);
+ }
+ fatal("%s:%d: unknown type %s\n", file, lineno, p);
return 0;
}
@@ -398,18 +417,22 @@ read_params(int *poffset)
while (1) {
p = xmalloc(sizeof(struct params));
p->name = token;
- p->type = read_type();
p->next = nil;
*pp = p;
pp = &p->next;
- size = type_size(p->type);
- rnd = size;
- if(rnd > structround)
- rnd = structround;
- if(offset%rnd)
- offset += rnd - offset%rnd;
- offset += size;
+ if(streq(token, "...")) {
+ p->type = xstrdup("");
+ } else {
+ p->type = read_type();
+ rnd = 0;
+ size = type_size(p->type, &rnd);
+ if(rnd > structround)
+ rnd = structround;
+ if(offset%rnd)
+ offset += rnd - offset%rnd;
+ offset += size;
+ }
token = read_token_no_eof();
if (!streq(token, ","))
@@ -418,7 +441,7 @@ read_params(int *poffset)
}
}
if (!streq(token, ")")) {
- fatal("%s:%ud: expected '('\n",
+ fatal("%s:%d: expected '('\n",
file, lineno);
}
if (poffset != nil)
@@ -438,6 +461,7 @@ read_func_header(char **name, struct params **params, int *paramwid, struct para
lastline = -1;
while (1) {
+ read_preprocessor_lines();
token = read_token();
if (token == nil)
return 0;
@@ -460,7 +484,7 @@ read_func_header(char **name, struct params **params, int *paramwid, struct para
token = read_token();
if (token == nil || !streq(token, "(")) {
- fatal("%s:%ud: expected \"(\"\n",
+ fatal("%s:%d: expected \"(\"\n",
file, lineno);
}
*params = read_params(paramwid);
@@ -473,7 +497,7 @@ read_func_header(char **name, struct params **params, int *paramwid, struct para
token = read_token();
}
if (token == nil || !streq(token, "{")) {
- fatal("%s:%ud: expected \"{\"\n",
+ fatal("%s:%d: expected \"{\"\n",
file, lineno);
}
return 1;
@@ -500,8 +524,13 @@ write_6g_func_header(char *package, char *name, struct params *params,
int paramwid, struct params *rets)
{
int first, n;
+ struct params *p;
+
+ bwritef(output, "void\n");
+ if(!contains(name, "·"))
+ bwritef(output, "%s·", package);
+ bwritef(output, "%s(", name);
- bwritef(output, "void\n%s·%s(", package, name);
first = 1;
write_params(params, &first);
@@ -518,6 +547,24 @@ write_6g_func_header(char *package, char *name, struct params *params,
write_params(rets, &first);
bwritef(output, ")\n{\n");
+
+ for (p = rets; p != nil; p = p->next) {
+ if(streq(p->name, "..."))
+ continue;
+ if(streq(p->type, "Slice"))
+ bwritef(output, "\t%s.array = 0;\n\t%s.len = 0;\n\t%s.cap = 0;\n", p->name, p->name, p->name);
+ else if(streq(p->type, "String"))
+ bwritef(output, "\t%s.str = 0;\n\t%s.len = 0;\n", p->name, p->name);
+ else if(streq(p->type, "Eface"))
+ bwritef(output, "\t%s.type = 0;\n\t%s.data = 0;\n", p->name, p->name);
+ else if(streq(p->type, "Iface"))
+ bwritef(output, "\t%s.tab = 0;\n\t%s.data = 0;\n", p->name, p->name);
+ else if(streq(p->type, "Complex128"))
+ bwritef(output, "\t%s.real = 0;\n\t%s.imag = 0;\n", p->name, p->name);
+ else
+ bwritef(output, "\t%s = 0;\n", p->name);
+ bwritef(output, "\tFLUSH(&%s);\n", p->name);
+ }
}
/* Write a 6g function trailer. */
@@ -527,7 +574,8 @@ write_6g_func_trailer(struct params *rets)
struct params *p;
for (p = rets; p != nil; p = p->next)
- bwritef(output, "\tFLUSH(&%s);\n", p->name);
+ if(!streq(p->name, "..."))
+ bwritef(output, "\tFLUSH(&%s);\n", p->name);
bwritef(output, "}\n");
}
@@ -726,6 +774,7 @@ process_file(void)
void
goc2c(char *goc, char *c)
{
+ int i;
Buf in, out;
binit(&in);
@@ -739,13 +788,15 @@ goc2c(char *goc, char *c)
if(!gcc) {
if(streq(goarch, "amd64")) {
type_table[Uintptr].size = 8;
- type_table[Eface].size = 8+8;
- type_table[String].size = 16;
if(use64bitint) {
type_table[Int].size = 8;
- type_table[Uint].size = 8;
+ } else {
+ type_table[Int].size = 4;
}
- type_table[Slice].size = 8+2*type_table[Int].size;
+ structround = 8;
+ } else if(streq(goarch, "amd64p32")) {
+ type_table[Uintptr].size = 4;
+ type_table[Int].size = 4;
structround = 8;
} else {
// NOTE: These are set in the initializer,
@@ -753,13 +804,22 @@ goc2c(char *goc, char *c)
// previous invocation of goc2c, so we have
// to restore them.
type_table[Uintptr].size = 4;
- type_table[String].size = 8;
- type_table[Slice].size = 16;
- type_table[Eface].size = 4+4;
type_table[Int].size = 4;
- type_table[Uint].size = 4;
structround = 4;
}
+
+ type_table[Uint].size = type_table[Int].size;
+ type_table[Slice].size = type_table[Uintptr].size+2*type_table[Int].size;
+ type_table[Eface].size = 2*type_table[Uintptr].size;
+ type_table[String].size = 2*type_table[Uintptr].size;
+
+ for(i=0; i<nelem(type_table); i++)
+ type_table[i].rnd = type_table[i].size;
+
+ type_table[String].rnd = type_table[Uintptr].rnd;
+ type_table[Slice].rnd = type_table[Uintptr].rnd;
+ type_table[Eface].rnd = type_table[Uintptr].rnd;
+ type_table[Complex128].rnd = type_table[Float64].rnd;
}
bprintf(&out, "// auto generated by go tool dist\n// goos=%s goarch=%s\n\n", goos, goarch);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 17:30:33 +0000