scc

Simple C99 Compiler
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commit 6650268eca2441b777636a3aad411b2d70e23281
parent 5510ac1ca190a4bacb6330ca37a7ab5f0b347225
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Fri, 21 Aug 2015 13:04:15 +0200

Basic support for -E flag

This flag makes compilation stop after preprocessor. This version
is only a draft of how it must work.

Diffstat:
cc1/main.c | 13+++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/cc1/main.c b/cc1/main.c @@ -13,6 +13,7 @@ int warnings; jmp_buf recover; static char *output; +static int onlycpp; static void clean(void) @@ -46,6 +47,9 @@ main(int argc, char *argv[]) case 'w': warnings = 1; break; + case 'E': + onlycpp = 1; + break; case 'o': if (!*++argv || argv[0][0] == '-') usage(); @@ -67,8 +71,13 @@ main(int argc, char *argv[]) ikeywords(); ilex(*argv); - for (next(); yytoken != EOFTOK; decl()) - /* nothing */; + if (onlycpp) { + for (next(); yytoken != EOFTOK; next()) + printf("%s ", yytext); + } else { + for (next(); yytoken != EOFTOK; decl()) + /* nothing */; + } return 0; }