scc

Simple C99 Compiler
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commit 715d9b507edeed0bdfce06c54042f8642255265d
parent cc2f2844edf910cc11eb0e51ddb47b641dbd2315
Author: Quentin Rameau <quinq@fifth.space>
Date:   Thu,  2 Jun 2016 16:08:31 +0200

[driver] add support for naming intermediary files

Diffstat:
driver/posix/scc.c | 55++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 50 insertions(+), 5 deletions(-)

diff --git a/driver/posix/scc.c b/driver/posix/scc.c @@ -30,6 +30,7 @@ static struct tool { char cmd[PATH_MAX]; char *args[NARGS]; char bin[16]; + char *outfile; int nargs, in, out; pid_t pid; } tools[NR_TOOLS] = { @@ -90,15 +91,58 @@ inittool(int tool) return tool; } +char * +newfileext(char *name, char *ext) +{ + char *new, *dot; + size_t newsz, nameln = strlen(name); + int n; + + if (!(dot = strrchr(name, '.'))) + dot = &name[nameln]; + + nameln = nameln - strlen(dot); + newsz = nameln + strlen(ext) + 1 + 1; + + new = xmalloc(newsz); + + n = snprintf(new, newsz, "%.*s.%s", nameln, name, ext); + if (n < 0 || n >= newsz) + die("wrong output filename"); + + return new; +} + int -settool(int tool, int output) +settool(int tool, char *input, int output) { struct tool *t = &tools[tool]; int fds[2]; + char *ext; static int fdin; - if (tool == TEE) - t->args[1] = "out.ir"; + switch (tool) { + case CC1: + ADDARG(tool, input); + break; + case TEE: + switch (output) { + case CC2: + ext = "ir"; break; + case QBE: + ext = "qbe"; break; + case NR_TOOLS: + if (!Sflag) + break; + case AS: + ext = "as"; break; + } + t->outfile = newfileext(input, ext); + t->args[1] = t->outfile; + break; + default: + break; + } if (fdin) { t->in = fdin; @@ -156,7 +200,6 @@ build(char *file) out = Eflag ? NR_TOOLS : CC2; if (!Eflag) keepfile = kflag; - ADDARG(tool, file); break; case CC2: if (!arch || strcmp(arch, "qbe")) { @@ -186,7 +229,9 @@ build(char *file) out = TEE; } - spawn(settool(inittool(tool), out)); + spawn(settool(inittool(tool), file, out)); + + free(tools[tool].outfile); } for (i = 0; i < NR_TOOLS; ++i) { if ((pid = tools[i].pid) == 0)