From e05cac70d855cd404eae9aeea5fcfb83ce8aabcf Mon Sep 17 00:00:00 2001 From: Phil Muldoon Date: Tue, 27 Feb 2018 12:21:23 -0800 Subject: [PATCH] Update get_args documentation This patch adds argument compilation documentation, expanding on the already existing comments, giving a more thorough explanation of the source of the arguments used in the final argument string. gdb/ChangeLog: * compile/compile.c (get_args): Add additional comments explaining function. --- gdb/ChangeLog | 5 +++++ gdb/compile/compile.c | 22 +++++++++++++++++++--- 2 files changed, 24 insertions(+), 3 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 33fbaac..9b899e5 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2018-02-27 Phil Muldoon + + * compile/compile.c (get_args): Add additional comments + explaining function. + 2018-02-27 Simon Marchi Tom Tromey diff --git a/gdb/compile/compile.c b/gdb/compile/compile.c index 82e63d8..70c4570d 100644 --- a/gdb/compile/compile.c +++ b/gdb/compile/compile.c @@ -393,9 +393,25 @@ filter_args (int *argcp, char **argv) *destv = NULL; } -/* Produce final vector of GCC compilation options. First element is target - size ("-m64", "-m32" etc.), optionally followed by DW_AT_producer options - and then compile-args string GDB variable. */ +/* Produce final vector of GCC compilation options. + + The first element of the combined argument vector are arguments + relating to the target size ("-m64", "-m32" etc.). These are + sourced from the inferior's architecture. + + The second element of the combined argument vector are arguments + stored in the inferior DW_AT_producer section. If these are stored + in the inferior (there is no guarantee that they are), they are + added to the vector. + + The third element of the combined argument vector are argument + supplied by the language implementation provided by + compile-{lang}-support. These contain language specific arguments. + + The final element of the combined argument vector are arguments + supplied by the "set compile-args" command. These are always + appended last so as to override any of the arguments automatically + generated above. */ static void get_args (const struct compile_instance *compiler, struct gdbarch *gdbarch, -- 2.7.4