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Add support for symbol table in .com files

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This change fixes minor bugs and adds a feature, which lets us store the
ELF symbol table, inside the ZIP directory. We use the path /zip/.symtab
which can be safely removed using a zip editing tool, to make the binary
smaller after compilation. This supplements the existing method of using
a separate .com.dbg file, which is still supported. The intent is people
don't always know that it's a good idea to download the debug file. It's
not great having someone's first experience be a crash report, that only
has numbers rather than symbols. This will help fix that!
This commit is contained in:
Justine Tunney 2022-03-23 06:31:55 -07:00
parent 393ca4be40
commit 23b72eb617
61 changed files with 963 additions and 510 deletions
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14
libc/sysv/consts.sh
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@ -626,16 +626,16 @@ syscon clock CLOCK_TAI 11 -1 -1 -1 -1 -1 # bsd consensus
# poll()
#
# group name GNU/Systemd XNU's Not UNIX! FreeBSD OpenBSD NetBSD The New Technology Commentary
syscon poll POLLIN 1 1 1 1 1 0x300 # unix consensus
syscon poll POLLIN 1 1 1 1 1 0x0300 # unix consensus; POLLRDNORM|POLLRDBAND on Windows
syscon poll POLLPRI 2 2 2 2 2 0x0400 # unix consensus
syscon poll POLLOUT 4 4 4 4 4 0x10 # unix consensus
syscon poll POLLERR 8 8 8 8 8 1 # unix consensus
syscon poll POLLHUP 0x10 0x10 0x10 0x10 0x10 2 # unix consensus
syscon poll POLLNVAL 0x20 0x20 0x20 0x20 0x20 4 # unix consensus
syscon poll POLLOUT 4 4 4 4 4 0x0010 # unix consensus; POLLWRNORM on Windows
syscon poll POLLERR 8 8 8 8 8 0x0001 # unix consensus
syscon poll POLLHUP 0x10 0x10 0x10 0x10 0x10 0x0002 # unix consensus
syscon poll POLLNVAL 0x20 0x20 0x20 0x20 0x20 0x0004 # unix consensus
syscon poll POLLRDBAND 0x80 0x80 0x80 0x80 0x80 0x0200 # unix consensus
syscon poll POLLRDNORM 0x40 0x40 0x40 0x40 0x40 0x0100 # unix consensus
syscon poll POLLWRBAND 0x0200 0x0100 0x0100 0x0100 0x0100 0x20 # bsd consensus
syscon poll POLLWRNORM 0x0100 4 4 4 4 0x10 # bsd consensus
syscon poll POLLWRBAND 0x0200 0x0100 0x0100 0x0100 0x0100 0x0020 # bsd consensus
syscon poll POLLWRNORM 0x0100 4 4 4 4 0x0010 # bsd consensus
syscon poll POLLRDHUP 0x2000 0x10 0x10 0x10 0x10 2 # bsd consensus (POLLHUP on non-Linux)
# epoll

2
libc/sysv/consts/POLLERR.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLERR,8,8,8,8,8,1
.syscon poll,POLLERR,8,8,8,8,8,0x0001

2
libc/sysv/consts/POLLHUP.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLHUP,0x10,0x10,0x10,0x10,0x10,2
.syscon poll,POLLHUP,0x10,0x10,0x10,0x10,0x10,0x0002

2
libc/sysv/consts/POLLIN.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLIN,1,1,1,1,1,0x300
.syscon poll,POLLIN,1,1,1,1,1,0x0300

2
libc/sysv/consts/POLLNVAL.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLNVAL,0x20,0x20,0x20,0x20,0x20,4
.syscon poll,POLLNVAL,0x20,0x20,0x20,0x20,0x20,0x0004

2
libc/sysv/consts/POLLOUT.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLOUT,4,4,4,4,4,0x10
.syscon poll,POLLOUT,4,4,4,4,4,0x0010

2
libc/sysv/consts/POLLWRBAND.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLWRBAND,0x0200,0x0100,0x0100,0x0100,0x0100,0x20
.syscon poll,POLLWRBAND,0x0200,0x0100,0x0100,0x0100,0x0100,0x0020

2
libc/sysv/consts/POLLWRNORM.S
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@ -1,2 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon poll,POLLWRNORM,0x0100,4,4,4,4,0x10
.syscon poll,POLLWRNORM,0x0100,4,4,4,4,0x0010